钻孔灌注桩的可靠性设计方法分析

Analysis of Design Method Based on Reliability Theory for Bored Pile

用“校准法”对现行《桥规》桩基可靠度水准进行了校核计算 ,并确定了桩的目标可靠指标 ;提出了单桩承载力的表达式和设计参数。

Applying calibration methods,this paper estimates the reliability level of pile foundation designed by Railway Bridge and Culvert Design Code and defines target reliability index β of piles.The formula of bearing capacity of single pile is put forward.