花岗岩残积土持力层人工挖孔桩承载力研究

Bearing Capacity of Hand-Dug Piles Embedded on Granite Residual Clay

论述了花岗岩残积土对人工挖孔桩承载力的影响;通过对现场试验结果的分析,研究了以花岗岩残积土为持力层的人工挖孔桩的承载性质及计算方法;结合92根桩的试验资料统计分析,讨论了地下水对人工挖孔桩承载力的影响.

The behaviors of granite residual clay and its effects on the bearing capacity of hand-dug piles were expounded in this paper. Then 4 loading tests were performed to analyze the distribution of the shaft resistances and the end bearing of the piles embedded on granite residual clay. Based on the results of 4 loading tests, a method to calculate the bearing capacity of the pile was presented. Finally, 92 loading tests were employed to analyze the influences of groundwater on the bearing capacity of the piles.