浅谈对大口径人工挖孔桩设计中一些问题的看法

Preliminary Discussion on Some Questions in Design for Large Diameter Hand-dug Pile

本文在总结一些工程实践经验的基础上,通过对大口径人工挖孔桩承载特性以及影响其承载力主要因素的分析,阐述了在工程设计中确定单桩承载力需要注意的几个问题,并对其允许承载力公式提出了调整参数K_1、k_2。

Based on the summary of practical experiences in some engineerings, this paper discussed a few problems, which need to be noticed in design for the determination of pile bearing capactity, by analyzing bearing behaviour of large diameter hand-dug pile as well as main factors affecting bearing capacity. Also, two adjusting parameters k_1and k_2are presented here for the equation of allowable bearing capacity.