Download U.S. Army explosives and demolitions handbook PDF

U.S. Army explosives and demolitions handbook
Name: U.S. Army explosives and demolitions handbook
Author: united states. dept. of the army
Pages: 394
Year: 2010
Language: English
File Size: 8.81 MB
Downloads: 1
Page 3

FM 5 250 C1 Change 1Headquarters Department of the Army Washington, DC, 30 June 1999 EXPLOSIVES AND DEMOLITIONS 1. Change FM 5 250, 30 July 1998, as follows: Page i. After DISTRIBUTION RESTRICTION paragraph, add the following: DESTRUCTION NOTICE: Destroy by any method that will prevent disclosure of contents or reconstruction of the document. Page 4 17. Change Figure 4 105 to Figure 4 22. Page 6 6. Table 6 2 caption, change "bear" to "bare." Page D 3. Paragraph D 9, line 2, delete "glass." Page D 3. After paragraph D 9 add the following: NOTE: The United Nations Convention of Certain Conventional Weapons (CCW) mandates that all fragment munitions produce fragments that are visible by x ray (such as metal or rock). 2. Post these changes according to DA Pamphlet 310 13. 3. File this transmittal sheet in the front of the publication. DISTRIBUTION RESTRICTION: Distribution authorized to US Government agencies only to protect technical or operational information form automatic dissemination under the International Exchange Program or by other means. This protection applies to publications required solely for official use and to those containing valuable technical or operational information. This determination was made on 22 October 1997. Other requests for this document will be referred to Commandant, US Army Engineer School, ATTN: ATSE DOT DDD, Fort Leonard Wood, MO 65473 8929. DESTRUCTION NOTICE: Destroy by any method that will prevent disclosure of contents or reconstruction of the document.


Page 4

i *FM 5 250 Field ManualHeadquarters No. 5 250 Department of the Army Washington, DC, 30 July 1998 EXPLOSIVES AND DEMOLITIONS Table of Contents Page PREFACE........................................................................................................................................xvi CHAPTER 1. MILITARY EXPLOSIVES.....................................................................................1 1 SECTION I. DEMOLITION MATERIALS......................................................................................1 1 CHARACTERISTICS..................................................................................................................1 1 SELECTION OF EXPLOSIVES................................................................................................1 1 DOMESTIC EXPLOSIVES........................................................................................................1 3 Ammonium Nitrate..............................................................................................................1 3 Cyclotrimethlenetrinitramine (RDX)..................................................................................1 3 Pentaerythrite Tetranitrate (PETN)...................................................................................1 3 Trinitrotoluene......................................................................................................................1 3 Tetryl.....................................................................................................................................1 3 Nitroglycerin.........................................................................................................................1 3 Black Powder........................................................................................................................1 4 Amatol...................................................................................................................................1 4 Composition A3.....................................................................................................................1 4 Composition B.......................................................................................................................1 4 Composition B4.....................................................................................................................1 4 Composition C4 (C4).............................................................................................................1 4 Composition H6...................................................................................................................1 4 Tetrytol..................................................................................................................................1 4 Pentolite................................................................................................................................1 5 Dynamites.............................................................................................................................1 5 Standard Dynamite........................................................................................................1 5 Military Dynamite.........................................................................................................1 5 DISTRIBUTION RESTRICTION: Distribution authorized to US Government agencies only to protect technical or operational information from automatic dissemination under the International Exchange Program or by other means. This protection applies to publications required solely for official use and to those containing valuable technical or operational information. This determination was made on 22 October 1997. Other requests for this document will be referred to Commandant, US Army Engineer School, ATTN: ATSE TD D, Fort Leonard Wood, MO 65473 8929. *This publication supersedes FM 5 250, 15 June 1992, TC 5 250, 30 September 1993, and TC 5 6 14, 18 June 1980.


Page 5

iiPage FOREIGN EXPLOSIVES...........................................................................................................1 5 Composition..........................................................................................................................1 5 Use........................................................................................................................................1 5 EXPEDIENT DEMOLITION CHARGES.................................................................................1 6 SECTION II. SERVICE DEMOLITION CHARGES......................................................................1 6 BLOCK DEMOLITION CHARGE.............................................................................................1 6 TNT BLOCK DEMOLITION CHARGE....................................................................................1 7 Characteristics.....................................................................................................................1 7 Use........................................................................................................................................1 7 Advantages...........................................................................................................................1 7 Limitations...........................................................................................................................1 7 M112 BLOCK DEMOLITION CHARGE..................................................................................1 7 Characteristics.....................................................................................................................1 7 Use........................................................................................................................................1 8 Advantages...........................................................................................................................1 8 Limitations...........................................................................................................................1 8 M118 BLOCK DEMOLITION CHARGE..................................................................................1 8 Characteristics.....................................................................................................................1 8 Use........................................................................................................................................1 8 Advantages...........................................................................................................................1 9 Limitations...........................................................................................................................1 9 M186 ROLL DEMOLITION CHARGE.....................................................................................1 9 FORTY POUND COMPOSITION H6 CRATERING CHARGE..............................................1 9 M1 MILITARY DYNAMITE....................................................................................................1 10 Characteristics...................................................................................................................1 10 Use......................................................................................................................................1 11 Advantages.........................................................................................................................1 11 Limitations.........................................................................................................................1 11 SHAPED DEMOLITION CHARGE........................................................................................1 11 Characteristics...................................................................................................................1 12 Fifteen Pound M2A4 Shaped Demolition Charge.....................................................1 12 Forty Pound M3A1 Shaped Demolition Charge.......................................................1 12 Use......................................................................................................................................1 12 Special Precautions............................................................................................................1 12 M183 DEMOLITION CHARGE ASSEMBLY.........................................................................1 12 Characteristics...................................................................................................................1 12 Use......................................................................................................................................1 14 M1A2 BANGALORE TORPEDO DEMOLITION KIT...........................................................1 14 Characteristics...................................................................................................................1 14 Use......................................................................................................................................1 15 Assembly.............................................................................................................................1 15 SECTION III. DEMOLITION ACCESSORIES............................................................................1 15 TIME BLASTING FUSE..........................................................................................................1 15 DETONATING CORD..............................................................................................................1 16 Characteristics...................................................................................................................1 16 Use......................................................................................................................................1 16 Precautions.........................................................................................................................1 17 BLASTING CAPS.....................................................................................................................1 17 Electric Blasting Caps.......................................................................................................1 17 Nonelectric Blasting Caps.................................................................................................1 17 M1A4 PRIMING ADAPTER....................................................................................................1 18


Page 6

iiiPage M8 BLASTING CAP HOLDER................................................................................................1 19 M1 DETONATING CORD CLIP..............................................................................................1 19 Branch Lines.......................................................................................................................1 19 Splices.................................................................................................................................1 20 M1 ADHESIVE PASTE............................................................................................................1 20 PRESSURE SENSITIVE ADHESIVE TAPE..........................................................................1 20 WATERPROOF SEALING COMPOUND...............................................................................1 21 M2 CAP CRIMPER...................................................................................................................1 21 M51 TEST SET.........................................................................................................................1 21 Characteristics....................................................................................................................1 21 Use.......................................................................................................................................1 21 Maintenance.......................................................................................................................1 22 BLASTING MACHINES..........................................................................................................1 22 M 32 10 Cap Blasting Machine.........................................................................................1 22 M 34 50 Cap Blasting Machine.........................................................................................1 22 CD450 4J Blasting Machine..............................................................................................1 23 Operational Test..........................................................................................................1 23 General Operating Procedures....................................................................................1 24 FIRING WIRE AND REEL......................................................................................................1 25 Types of Firing Wire...........................................................................................................1 25 Reel......................................................................................................................................1 25 FIRING DEVICES AND OTHER ACCESSORY EQUIPMENT............................................1 25 M60 Weatherproof Fuse Igniter........................................................................................1 25 Demolition Equipment Set.................................................................................................1 26 CHAPTER 2. INITIATING SETS, METHODS OF PRIMING, AND FIRING SYSTEMS....................................................................................................................................2 1 SECTION I. INITIATING SETS......................................................................................................2 1 NONELECTRIC INITIATION SETS........................................................................................2 1 Components Assembly.........................................................................................................2 1 Preparation Sequence...........................................................................................................2 2 Fuse Initiation......................................................................................................................2 5 ELECTRIC INITIATION SETS.................................................................................................2 5 Components Assembly.......................................................................................................2 10 Circuit Initiation.................................................................................................................2 10 Splicing Electric Wires.......................................................................................................2 10 Preparation...................................................................................................................2 10 Method..........................................................................................................................2 11 Precautions...................................................................................................................2 11 Series Circuits.....................................................................................................................2 11 Common........................................................................................................................2 11 Leapfrog........................................................................................................................2 12 SECTION II. PRIMING SYSTEMS...............................................................................................2 12 PRIMING METHODS..............................................................................................................2 12 PRIMING TNT DEMOLITION BLOCKS...............................................................................2 12 Nonelectric..........................................................................................................................2 12 Electric................................................................................................................................2 13 With Priming Adapter.................................................................................................2 13 Without Priming Adapter............................................................................................2 13 Detonating Cord.................................................................................................................2 14 PRIMING M112 (C4) DEMOLITION BLOCKS......................................................................2 15


Page 7

ivPage Nonelectric and Electric.....................................................................................................2 15 Detonating Cord.................................................................................................................2 15 PRIMING M118 AND M186 DEMOLITION CHARGES......................................................2 17 Nonelectric and Electric.....................................................................................................2 17 Detonating Cord.................................................................................................................2 17 PRIMING DYNAMITE............................................................................................................2 18 Nonelectric..........................................................................................................................2 18 Detonating Cord.................................................................................................................2 20 PRIMING FORTY POUND, COMPOSITION H6 CRATERING CHARGES.......................2 20 PRIMING M2A4 AND M3A1 SHAPED CHARGES...............................................................2 22 Nonelectric..........................................................................................................................2 22 Electric................................................................................................................................2 22 PRIMING THE BANGALORE TORPEDO.............................................................................2 23 Nonelectric......................................................................................................................... 2 23 Electric ...............................................................................................................................2 23 Detonating Cord ................................................................................................................2 24 Dual Priming .....................................................................................................................2 24 SECTION III. DETONATING CORD FIRING SYSTEMS .........................................................2 25 TYPES OF DETONATING CORD FIRING SYSTEMS ........................................................2 25 Single .................................................................................................................................2 25 Dual ....................................................................................................................................2 25 DETONATING CORD .............................................................................................................2 25 ATTACHING THE BLASTING CAP .....................................................................................2 27 CONNECTING THE DETONATING CORD .........................................................................2 28 Branch Line .......................................................................................................................2 29 Line Main ..........................................................................................................................2 29 Ring Main ..........................................................................................................................2 29 Method 1..................................................................................................................... 2 30 Method 2 .....................................................................................................................2 30 Method 3 .....................................................................................................................2 32 INITIATING A FIRING SYSTEM .........................................................................................2 32 Single firing system ..........................................................................................................2 32 Dual firing system ............................................................................................................2 32 CHAPTER 3. CALCULATING AND PLACING CHARGES............................................... 3 1 SECTION I. DEMOLITION ............................................................................................................3 1 DEMOLITION PRINCIPLES ...................................................................................................3 1 Detonation Effects ...............................................................................................................3 1 Charge Dimension Significance .........................................................................................3 2 Charge Placement Significance ..........................................................................................3 2 TYPES OF CHARGES .............................................................................................................3 2 Internal Charges .................................................................................................................3 2 External Charges ................................................................................................................3 2 CHARGE CALCULATION DETERMINATION .....................................................................3 3 CHARGE SELECTION AND CALCULATION .......................................................................3 3 Selection ...............................................................................................................................3 3 Calculation ..........................................................................................................................3 4 SECTION II. NORMAL CUTTING CHARGES .............................................................................3 5 TIMBER CUTTING CHARGES ...............................................................................................3 5 Internal Charges .................................................................................................................3 5 External Charges ................................................................................................................3 6


Page 8

vPage Ring Charge .........................................................................................................................3 7 Underwater Charge..............................................................................................................3 7 Abatis ...................................................................................................................................3 7 Placement ......................................................................................................................3 9 Special Considerations ..................................................................................................3 9 Hasty Timber Calculations .................................................................................................3 9 STEEL CUTTING CHARGES ................................................................................................3 10 Target Factors ....................................................................................................................3 10 Target Configuration ..................................................................................................3 10 Target Materials .........................................................................................................3 10 Explosive Factors ...............................................................................................................3 11 Type .............................................................................................................................3 11 Placement ....................................................................................................................3 11 Size ...............................................................................................................................3 11 SECTION III. SPECIAL CUTTING CHARGES ..........................................................................3 14 PURPOSE .................................................................................................................................3 14 RIBBON CHARGE ..................................................................................................................3 15 SADDLE CHARGE ..................................................................................................................3 16 DIAMOND CHARGE ...............................................................................................................3 17 SECTION IV. BREACHING CHARGES .....................................................................................3 18 CRITICAL FACTORS ..............................................................................................................3 18 COMPUTATION ......................................................................................................................3 19 Formula ..............................................................................................................................3 19 Breaching Radius ..............................................................................................................3 20 Material Factor ..................................................................................................................3 20 Tamping Factor .................................................................................................................3 20 BREACHING REINFORCED CONCRETE ...........................................................................3 21 BREACHING OTHER MATERIALS ......................................................................................3 21 NUMBER AND PLACEMENT OF CHARGES ......................................................................3 23 Number of Charges ............................................................................................................3 23 Charge Placement ..............................................................................................................3 23 Limitations ..................................................................................................................3 23 Configuration ..............................................................................................................3 24 COUNTERFORCE CHARGES ...............................................................................................3 24 Use ......................................................................................................................................3 24 Calculation .........................................................................................................................3 24 Placement ...........................................................................................................................3 24 Priming ...............................................................................................................................3 25 Example Calculations ........................................................................................................3 25 SECTION V. CRATERING AND DITCHING CHARGES ..........................................................3 25 FACTORS .................................................................................................................................3 25 Sizes ....................................................................................................................................3 25 Explosives ..........................................................................................................................3 25 Charge Confinement ..........................................................................................................3 25 BREACHING HARD SURFACED PAVEMENTS .................................................................3 26 HASTY CRATER .....................................................................................................................3 26 Boreholes ............................................................................................................................3 27 Charge Size ........................................................................................................................3 27 Firing System .....................................................................................................................3 27 Tamping .............................................................................................................................3 27 DELIBERATE CRATER ..........................................................................................................3 27


Page 9

viPage RELIEVED FACE CRATER....................................................................................................3 28 MISFIRE PREVENTION ........................................................................................................3 29 CREATING CRATERS IN PERMAFROST AND ICE ..........................................................3 30 Blasting in Permafrost ......................................................................................................3 30 Boreholes .....................................................................................................................3 30 Explosives ...................................................................................................................3 30 Blasting in Ice ...................................................................................................................3 30 Boreholes .....................................................................................................................3 30 Craters ........................................................................................................................3 31 Making Vehicle Obstacles .................................................................................................3 31 CREATING CRATERS FROM CULVERTS ..........................................................................3 31 CREATING CRATERS FROM AT DITCHES .......................................................................3 31 DITCHING METHODS ..........................................................................................................3 31 Single Line .........................................................................................................................3 31 Cross Section .....................................................................................................................3 31 SECTION VI. LAND CLEARING CHARGES .............................................................................3 33 STUMP REMOVAL .................................................................................................................3 33 Taprooted Stumps .............................................................................................................3 34 Laterally Rooted Stumps ..................................................................................................3 34 BOULDER REMOVAL ...........................................................................................................3 34 Snake Hole Method ...........................................................................................................3 34 Mud Cap Method ..............................................................................................................3 35 Block Hole Method ............................................................................................................3 35 SPRINGING CHARGE ...........................................................................................................3 35 QUARRYING ...........................................................................................................................3 35 SECTION VII. SPECIAL APPLICATIONS .................................................................................3 35 SURVIVABILITY POSITIONS ..............................................................................................3 35 Depth .................................................................................................................................3 36 Spacing ..............................................................................................................................3 36 Charge Size ........................................................................................................................3 36 Concealment ......................................................................................................................3 36 EQUIPMENT DESTRUCTION ..............................................................................................3 37 Guns ...................................................................................................................................3 37 Explosive Method .......................................................................................................3 37 Improvised Method .....................................................................................................3 38 Vehicles ..............................................................................................................................3 38 Armored Fighting Vehicles (AFVs) ............................................................................3 38 Wheeled Vehicles ........................................................................................................3 38 UNDERWATER DEMOLITIONS ..........................................................................................3 38 CHAPTER 4. BRIDGE DEMOLITION .....................................................................................4 1 BRIDGE CATEGORIES ............................................................................................................4 2 Simply Supported ................................................................................................................4 2 Miscellaneous ......................................................................................................................4 2 Continuous ..........................................................................................................................4 2 TYPES OF ATTACK .................................................................................................................4 3 Bottom Attack .....................................................................................................................4 3 Top Attack ...........................................................................................................................4 3 SUCCESSFUL BRIDGE DEMOLITIONS ...............................................................................4 3 Condition 1 ..........................................................................................................................4 4 Condition 2 ..........................................................................................................................4 5


Page 10

viiPage Types of Collapse Mechanisms ...........................................................................................4 5 Efficient Demolition Methods .............................................................................................4 6 Priority One ...................................................................................................................4 7 Priority Two ...................................................................................................................4 7 Concrete Stripping Charges ................................................................................................4 7 Description ....................................................................................................................4 7 Charge Calculations ......................................................................................................4 7 UNSUCCESSFUL BRIDGE DEMOLITIONS .........................................................................4 9 SIMPLY SUPPORTED AND CONTINUOUS BRIDGES .......................................................4 9 Simply Supported Bridges ................................................................................................4 10 Steel Beam Bridges .....................................................................................................4 12 Steel Truss Bridges .....................................................................................................4 12 Concrete Beam and Slab Bridges ..............................................................................4 12 Bowstring Bridges .......................................................................................................4 14 Reconnaissance ...........................................................................................................4 15 Attack ...........................................................................................................................4 16 Point of Attack .............................................................................................................4 16 Line of Attack ..............................................................................................................4 16 Attack Methods ...........................................................................................................4 16 Continuous Bridges ...........................................................................................................4 18 Cantilever Bridges ......................................................................................................4 19 Cantilever and Suspended Span Bridges ..................................................................4 19 Beam or Truss Bridges ...............................................................................................4 20 Portal Bridges ..............................................................................................................4 21 Arch Bridges ................................................................................................................4 21 Masonry Arch Bridges ................................................................................................4 21 Reconnaissance ...........................................................................................................4 23 Bridge Attacks .............................................................................................................4 23 MISCELLANEOUS BRIDGES ...............................................................................................4 24 Suspension Span Bridges ..................................................................................................4 24 Components .................................................................................................................4 24 Demolishing Methods .................................................................................................4 25 Movable Bridges ................................................................................................................4 25 Swing Span Bridges ....................................................................................................4 25 Bascule Bridges ...........................................................................................................4 25 Vertical Lift Bridges ...................................................................................................4 27 Floating Bridges ..........................................................................................................4 27 Bailey Bridges .............................................................................................................4 28 ABUTMENTS ...........................................................................................................................4 29 Abutments 5 Feet Thick or Less .......................................................................................4 29 Abutments Over 5 Feet Thick ...........................................................................................4 29 Abutments Over 20 Feet High ..........................................................................................4 29 Wing Walls .........................................................................................................................4 31 INTERMEDIATE SUPPORTS ................................................................................................4 31 Internal Charges ................................................................................................................4 31 External Charges ...............................................................................................................4 31 CHAPTER 5. DEMOLITION OPERATIONS ..........................................................................5 1 DEMOLITION OBSTACLES ....................................................................................................5 1 BARRIERS AND DENIAL OPERATIONS ..............................................................................5 1 DEMOLITION PLANNING ......................................................................................................5 1


Tags: Download U.S. Army explosives and demolitions handbook PDF, U.S. Army explosives and demolitions handbook free pdf download, U.S. Army explosives and demolitions handbook Pdf online download, U.S. Army explosives and demolitions handbook By united states. dept. of the army download, U.S. Army explosives and demolitions handbook.pdf, U.S. Army explosives and demolitions handbook read online.
About | Contact | DMCA | Terms | Privacy | Mobile Specifications
Copyright 2021 FilePdf