Royal Engineers Demolitions Handbook 0879475404

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ROYAL EI\IGINEER,S

DEMOLITIOI\tS HAI{DBOOK

ROYAL ENGINEER'S DEMOLITIONS HANDBOOK

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FI Reprinted commercially 7977 by Desert publications.

write for the complete catalog tisting hundreds of similar tifles.

DESERT PUBLICATIONS P.O. Box 22005 Phoenix, AZ 85028

rsBN

0-87 947 -540_4

ul CHAPTER 4._ALLIED DEMOLITION EQUIPMENT PAGB

sEc

CONTENTS CHAPTER I.-DEMOLITION PROCEDURE General ... 2. Firing orderS (deferred demolitions) .r. Reconnaissance and dePloYment

l.

4. Supply

6. 7.

CHAPTER s._SAFETY PRECAUTIONS 22. Safety precautions in training and operations !..

69

I

...

2

3

6

in tJre field

CHAPTER 2.-EXPLOSIVES AND ACCESSORIES 8 Sgrvice bulk explosives l3 Initiation and firing accessories 28 firing Electrical 34

8. Testing electrical circuits 9.

66

PAGE

SEC

5.

21. American demolition equipment

Use

of mines, bombs and shells Ets demolition

charges

Protection of charges on long-standing derna

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u,i,"ltT.?l -'ff; "* Ha'lffi#Tr" nrouna.' dl"ar gap will normally result as iar adjoining ufrigUt on either side' "s 20 (iii) See-th* ffiunffi"Ii,Xiut"reast ^I3; O"it" lyrng do-wn not safe nea'rer than

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Connecting Lug Charge flot on

obJut to be attacked Sarino elios for use Mth

--- &todator fuze branch -1 junctrcns (tf used) Socket for

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Euilt m Primer Explosive Ftlling

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Frc t7

CIIARGE DEMOLITION No.

I, BEEHM,

WADE Frc.I8.-CHARGE DEMOLITION NO. 2 GENERAL

6-IN

63

62

Srctror 20.-MISCELLANEOUS DEMOLITION TECHNIQUE

l. General.-fYsfss on methods of demolition of various targets are given in RE RPB. Sec 34, para I0, 2. Excavatlon for $unplts' etc @l I lb explosive buried 2 ft in' 6pound will form crater of loose, easily excavated soil for radius of 2 ft aud depth of 3 ft in hard or rocky soil. (D) Spitlock gunpit or other excavation to correct slape -and bury charges over it at 4-ft, centres. Blow simultaneously with ring main. (c) Method is NOT suitable (i)wheresoii j:J:Tr,""',HfJi[T:1[:t;-:H,:l tion by this method. (ii) Where blowing of charges may give position away to enemy. (iii) When spoil scattered over ground may betray

6uilt in Pnmer fxplouve charyd

Frc I9.--CHABGE DEMOLITION No. 3, HAYRICK

position to enemy aerial recce. (d) Do not use this method for weapon s/fls.-Area of loosened soil is too wide and walls will not be firm enough to . give protection against AFVs overrunning position.

3. Destf,uctlon of exploslves (c) Explosives, if in bad condition, should be destroyed bt burning in small lots of not mole than 5 tb. Place in trenches if possible, and igtdte with petrolsoaked saudbags from down wind. (b) CE/TNT will not often deteriorate unless millboard cover qf slabs is damaged. This explosive will not burn unless a very hot flame is applied. It should be detonated in small quantities. (c) Explosives contaminated by war gixles are liable to become dangerous in varying degrees within a short period of contamination. Do not attempt to decontominate uith Ncach. This may cause ign'ition or detooation. Soak with water aqd then split into small lots and destroy by hurning as already described.

65

& TABLE I4._HASTY ESTIMATION OF IN THE PREPARATION Norr.-These are average figures and it is most unlikety that reconnaissance of each bridge

MEN, TIME AND EXPLOSIVES REQUIRED OF A DEMOLITION BELT these .will be correct

will always be necessary.

for any one bridge, &d a

Destmction of one pier

Serial No.

Single cut across

Nature of bridge

one sp:rn

width

(SIab

or plastic

U.iog borehole

I .. gharge-s I (Plastic explosive) I

Destruction of oqe abutment

Using footing charges

(erry exflosive)

explosive)

Ex-

plosive secs

lb

detailed

Using mined

charges placed by

Camouflet method (Plastic explosive or arnmonal)

Tin

Using deliberate

mined

1

2 3

4

Brick, masonry or mass concrete arches. -piers and abutments'

Up to 20 20-40

10-40 ,f0-80

1

L25

10-40

1 1

40-80

150 225

2

Steel girder 5

6 7 8

Spa.s

FterJ ana abutmenii

Up to

20

as in serials 14

20-40

9

11

13

t4

t9

150

80-130 10-40

290 720 300

80*130

RC slabs Beams and girders RC piers and abutments

Up to

2O

RC arcbesPiers and ibutments . .

20

80-130

Up to Over

2t

10-40

40-80

20-4m

15 16 77 18

60

40-80

l0 t2

st

10-40

40-80

20

10-40 40-80 60-130

c

70ol

10--40

2

2

500$ 600$ 1,0009 1,000s 1,600

2,400

underneath

$ Dig

If

dorvn.

and

pt-agg pr-Essure charges

available, use hayricks

at

c-rown and

both

at crowi and both fspans.

I

6I 8t

10t

so0i

Norrs.-. May need compressor to break road surface. t lganressor required for three-quarters of this time. If Beehives are used-hdf time. I [Jsg presslre charges, Nternatively attack with hayricks

7t

320t

,

2 3 3 3

6t 7l

10t

40-E0 10-40

7l

3s0t

1,000i

40-80 80-130

40

160*

1 1 1

2

80-r30 4O

+40

6t

from

spaos.

8t

t2t

7s

125 150

1s0 225 225

1 1 1 1

hrs

secs

2

2

1 1 1 L 1

1

o 2

2 3 3 3

100 150

to attack

2to

o

450 450 450 800 800 900

2 2 2 2 2

1 1 1 1 1

2so 200 300 s00

Piers probably

740 140

, 3 3

1

f66 rhis!.r

",

Time

hrs

c c

48 48

Ex-

plosive

lb

600 600 2,000 2,000 2,000

zLO

,

a

140 140

o 2

+8

600

t+o

48 48

@0

2

210 210

2

2,040

2t0

)

72 72 72

140

;c

48

c c

48

600 600 600

7+O 1+O 2LO

2

210

2to

Abutments probably too heavy for use of Camouflet charges

50

72 72 72

c 2 c

Dj

(Any explosive)

seqs 75

charges

Forrnula

c

2

, 2 2 ? /)

2

2

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600 2,000 2,000

72 72

2,AOA

72

2,000

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