TM 5-818-1 / AFM 88-3, Chap. 7
Table 6-2. Allowable Bearing Pressure for Jointed Rock
qa
RQD
tsf
100
300
90
200
75
120
50
65
25
30
0
10
a If tabulated value exceeds unconfined compressive strength of intact samples of the
rock, allowable pressure equals unconfined compressive strength.
U. S. Army Corps of Engineers
6-9
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