EP 1110-1-17
16 Jul 99
TABLE 3-2.B
Required Blast Overpressure Protection Distance for Personnel for Detonating Ammunition for
the Purpose of Explosive Ordnance Disposal (English)
NEW
(lbs)
Burial Depth in Feet
0
1
2
3
4
5
10
15
Distance Required in Feet
1
328
79
16
16
16
16
16
16
5
561
261
104
41
28
28
28
28
10
707
398
191
92
44
35
35
35
20
890
464
326
182
102
57
45
45
30
1019
566
368
260
157
94
51
51
40
1122
650
439
329
208
131
56
56
50
1208
721
501
349
255
165
60
60
100
1522
984
737
553
414
326
76
76
150
1743
1171
911
708
550
428
105
87
200
1918
1322
1052
837
665
529
151
96
250
2066
1450
1172
948
767
620
198
103
300
2196
1562
1279
1047
858
702
243
110
350
2312
1663
1375
1137
941
778
288
116
400
2417
1755
1463
1220
1018
849
332
121
450
2514
1839
1545
1297
1089
915
375
134
500
2603
1918
1620
1369
1157
977
417
154
1000
3280
2515
2200
1924
1683
1472
754
360
1500
3755
2936
2612
2324
2067
1839
1025
556
2000
4133
3273
2943
2646
2380
2140
1258
739
2500
4452
3558
3224
2921
2647
2398
1465
894
3000
4731
3808
3471
3163
2883
2627
1652
1039
4000
5207
4236
3893
3578
3289
3023
1983
1301
5000
5609
4598
4251
3931
3635
3362
2273
1537
6000
5960
4915
4566
4241
3940
3660
2533
1752
7000
6274
5199
4847
4520
4214
3929
2769
1952
8000
6560
5457
5104
4773
4464
4175
2988
2138
9000
6823
5695
5340
5007
4695
4402
3191
2313
10000
7067
5916
5560
5225
4910
4614
3382
2479
NOTES FOR TABLE 3-2.B:
1. This table is derived from DA PAM 385-64.
2. This table provides distances for protection from blast overpressure only.
3. The 0 foot column distances are for above ground or open pit detonations and are based on the formula D = 328W1/3 (D
in feet, W in lbs.). The columns 1 foot through 15 feet are for buried detonations and are generated from the program
EARTHEX. These distances assume the use of alluvium soil, a silty material which is the lightest soil type. They also
assume "base weather conditions," meaning low winds and high clouds. In lieu of this table, EARTHEX is recommended
for soil types other than alluvium (heavier soils may allow smaller distances), for atmospheric conditions such as low stable
clouds (which may increase distances), and for interpolation between table values. EARTHEX, an IBM compatible
program, is available from the U.S. Army Technical Center for Explosives Safety, ATTN: SMCAC-ES, Savanna, IL 61074-
9639.
3-8
Previous Page
