可靠度分析方法在岩土工程中的应用

Reliability method in geotechnical engineering

影响建筑物安全性的诸多因素都不同程度地存在不确定性。可靠度设计方法企图定量地研究这种不确定性，并估计它对建筑物安全性的影响。自６０年代以来，可靠度设计方法在岩土工程中的应用有了较大的发展，目前已初步形成一条独立的设计途径。本文简要地介绍了概率极限状态设计问题以及对岩上工程来说最具特色的三个基本问题：地层的概率处理、土性参数的概率分析和岩上可靠度的计算方法。

The factors affecting the safety of a structure are more or less uncertain.The reliability design method attempts to quantitatively study their uncertainty and estimate its influence on the safety of a structure.Since 1960 s,application of the reliability design method to geotechnical engineering has largely developed,and now an independent design approach by reliability method has been primarily established.In this paper,a brief introduction is made to the probability limit state design as well as three basic problems in the geotechnical engineering design:probability processing of strata,probability analysis of soil property parameters and reliability calculation method for geotechnical engineering.