【作者】 张钦喜； 王钰； 张振双；

【Author】 ZHANG Qinxi;WANG Yu;ZHANG Zhenshuang;Beijing University of Technology;

【机构】 北京工业大学；

【摘要】 在运用常用方法规范法计算地基沉降量时,地基土参数压缩模量E和土层厚度Z由于现场、室内试验条件设备等的限制,不可能精确地把握。因此,运用"确定的"方法计算的沉降量是具有不确定性的。本文对地基的沉降进行了概率分析,提出了一种新的沉降计算方法,得出了可能的沉降区间。通过工程实例验证基于概率的沉降计算方法并与实际沉降检测值相比较,实际检测结果落在沉降区间内,此方法具有适用性。更多还原

【Abstract】 In civil engineering disciplines in recent years, based on the probability method has been more and more attention of application of the method of probability analysis, the author of this paper, discuss the multi-layer foundation settlement estimation problem of localized parameters uncertainty of the prediction of subsidence is not only an average, also get the corresponding to different reliability confidence interval, this method of " uncertainty" obviously than with " sure" algorithm of single value is more reasonable. Once the settlement value interval under different reliability is obtained, we can analyze the risk and possible loss of the project, and provide a reliable basis for the optimization design and construction of the whole project.更多还原