地基非均匀沉降的可靠度分析  

Reliability Analysis of Non-Uniform Settlement of Foundation

作　　者：陈晓平[1] 俞季民[1] 

机构地区：[1]武汉水利电力学院,430072

出　　处：《岩土工程学报》1992年第A09期56-62,共7页Chinese Journal of Geotechnical Engineering

摘　　要：本文将地基土看作一随机场,建立了地基非均匀沉降的概率模型,用二阶矩理论求出地基非均匀沉降的均值和变异系数,并进行可靠度分析求出可靠指标β。通过对某住宅楼地基的实测资料进行计算和与实际值比较,得出了与实际工程有益的结论。Foundation soil was regarded as a random field, and a probabilistic model of the non-uniform settlement of foundation was established. Mean and coefficient of variation of non-uniform settlement of foundation were determined by first-order second-moment technique. Reliability analysis was then performed to compute the reliability index. As an example, the model was used for the calculation of the non-uniform settlement of a building. Values from calculation and measurment were compared and valuable conclusions were drawn.

关 键 词：地基 不均匀沉降 可靠性 

分 类 号：TU433[建筑科学—岩土工程]