Model test study of bending moment and negative skin friction for batter rock-socketed piles under surface load

Batter rock-socketed piles (BRSP) foundation is one of common foundations, such as port engineering or cross-sea bridge, while there are few studies on negative skin friction for BRSP. A series model tests conducted to explore BRSP which embedded in thick soft clay. The effects the inclined angle and soil consolidation time resistance bending moment analyzed. test results show that: development have pronounced effect; longer is, slower axial force intensify. ultimate pile shaft increases nonlinearly concerning piles. And “neutral point” position peak point always located at 0.9~1.0 times depth.