桩承结构可靠性理论研究与工程应用进展

Theoretical Research Progress and Engineering Application of Reliability of Pile Bearing Structure

针对桩承结构的工程安全性问题,通过可靠性的基本理论进行研究,同时分析工程应用的一些问题,包括简述桩基可靠性的基本概念与可靠度指标的主要计算方法;根据边坡抗滑桩、建筑桩基础与基坑围护桩、深水桩基础等承载特点,分别对相关可靠性理论和计算方法进行总结,并列举一些桩承结构可靠性的工程应用;阐述桩承结构可靠性理论研究进展,并提出工程应用中存在的问题,同时提出进一步研究的方向应为模糊可靠性分析。

Aiming at the engineering safety problem of pile bearing structure,the problem was studied through the basic theory of reliability.Some problems of engineering application were analyzed including briefly describe the basic concept of reliability of pile foundation and the main calculation method of reliability index.According to the bearing characteristics of slope anti-slide pile and building pile foundation,as well as foundation pit retaining pile and deep water pile foundation of bridge,the reliability theory and the calculation method were summarized,and some engineering applications of the pile bearing structure reliability were listed.The research progress of reliability theory of pile bearing structure was pointed out,and the problems existing in engineering application were put forward.The direction of further research was pointed to be fuzzy reliability analysis.