摘要：如何合理地评价软岩地基条件下桩基承载力及优化设计是南水北调中线工程的主要技术问题之一，制约着工程的总体投资。通过对南水北调中线工程总干渠建筑物软岩桩基承载力评价方法的分析，指出了目前桩基承载力评价方法存在的一些问题，并指出了具体的研究方向。

关键词：南水北调；软岩；桩基承载力

中图分类号：tv68；tu473 文献标识码：b 文章编号：1672-1683（2008）01-0057-02

the appropriate evaluation to the bearing capacity of pile in soft rock ground in the middle route of the south-to-north water transfer project

wen song-lin1,2,jiang zhi-quan1,2,cheng zhan-lin1,2,bian zhi-hua1,2,hu sheng-gang1,2

(1.yangtze river scientific research institute,wuhan 430010,china;2.key laboratory of geotechnical mechanical and engineering of the ministry of water resources yangtze river scientific research institute,wuhan 430010,china)

abstract:the appropriate evaluation to the bearing capacity of pile in soft rock ground is one of the most m