TABLE A.3-TNI Crater Measurements in Limestone, Granite and Sandsto
ne*
Underground Explosion Test Program
Limee:
501
Granite
601
stone =
oe
Site: ProvingGround.
Round
Charge
Weight
(1b TNT)
320
6.6
0.97
11.2
(ft)
(A)
(tt)
2
320
-2.5
320
0.0
Q.00
2.5
0.365(/
5.0
0.365] 25.2
2?
.
[-2.5
320 | .:2.5
- 603
: 604
;1605
606.1,
610
el
12
801
802
803
2.5
320
320
320
320
2.5
5.0
12.5
25.0
320
2.5
609.) ° 2,560
2,560
'~
3x
“320
320
0.365}
8.3
0.365;
5.0
(r)
1.64
3.9
0.57
8.43
1.23,
1.7
0.25
5.3
0.78
1.
2.12
2.50
0.76
2.6
5.0
6.1
2.0
0.365| 14.0
2.05
4.6
14.4
2.2
1.96
3.93
0.0
3-0
Te
0.0
0.73
1...
0.00
0.365; 11.6
1.69
4.8
0.70
1.69
0.0
5.6
0.82
0.73
14.0
2.04
3.65
0.0
0.00
19.0
32.6
1.85
2.38
809
810
1,080
2,560
3-75
5.0
| 812
813
814
2,560
10,000
40,000
5.0
7.9
12.5
816
40,000
12.5
12.5
0.365}
70.5--+: 2.06
817
320,000
25.0
0.365
94.8 ry 1.38 ¢c
819
320
2.5
815
818
4Q,000
320
9.3
2.5/%)) 0.365] 24.3
2.5 “| 0s365{ 13.1
2.5
0.67
0.365; 13.4
2.°9 13.2
-0.365] 0.0
25.0°
5.0
0.38
0.73
0.89
0.29
10.2
320
2,560
cece
1.84
806
8l1
eee
0.365} 9.70]
0.73 14.5
1.83 17.1
3.65
5-20]
(12.5.3; 1.82
320
320,
(a)
1.33
1.22
320
807
808
(ft)
9.1
0.175
320_:/' 5.0 |
~
Crater
—
Depths
1.20]
0.365] 23.1
fF; 0.0
Radius##
80k
805
Ov365|
93365
3365 1.25.1
0.365} 23.3
0.365] 39.4
0.365/56.5
1.36
2.09
29h
1.83
1.70
1.83
1.65
0.365/ 53.6 :| 1.56¢
0.365| 17.5|
0.365] 15.6
2.56
2.28
8.7
2.3
1.6
14.9
5.lb
5.8
8.6
9.7
10.5
0.75
0.64
0.34
1.1
2.17
0.75
0.85
0.84
0.71
0.77
11.0
16.1
26.9
0.80
0.75
0.79
[27.5 bd]
0.80»
26.9b|
0.79 d
47.0
0.69
6.5
0.95
6.0
0.88
*Obtained from Underground Explosion Test Program-Technical Report No.
4,Granite and Limestone, Volume I and from Undergroynd Explosion Test
6
Rab
_
(Crater
320
608 fF;
stone
Depth
302
607 {F320
Sand-
Charge
LAD.
Soil
Program-Technical Report No. 5, Sandstone, Volume I, Engineéring Research
Associates, Feb. 15, 1953.
Phe
*#All crater radii are measured at original ground level. _
#itHtAverage Crater depth (Dy) is the average of the measurementsof the
vertical distance from the deepest point of the crater, not necessarily
directly under the charge, to the surface, one measurement being made
on each of the four vertical sections available for each crater.”/This
depth is not significant unless the deepest point is below thebottom
of the excavation made to place the charge.
The charge hole was obliter-
ated by all the detonations at the sandstone site except Round 306.
62