引用第7楼wustone于2010-12-21 10:38发表的 :
-,YI>! AASHTO LFRD ,jeHL@>w[ 10.8.3.5.4c Tip Resistance 端阻力
3UW`Jyd`k End-bearing for drilled shafts in rock may be taken as follows:
> yLDU_P) If the rock below the base of the drilled shaft to a depth of 2.0B is either intact or tightly jointed, i.e., no compressible material or gouge-filled seams, and the depth of the socket is greater than 1.5B (O’Neill and Reese, 1999):
u {&=$[; 如果桩底2B范围岩石是完整或密闭节理的，例如无可压缩材料或断层泥充填薄层，且嵌岩深度大于1.5B：
v ;5-1 .......
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