深基坑隆起稳定性的模糊概率分析  

Fuzzy Probability Analysis on the Heave Stability of Deep Foundation Pit

作　　者：李明宇[1] 郭院成[2] 刘耀宗 

机构地区：[1]同济大学地下建筑与工程系,上海200092 [2]郑州大学土木工程学院,郑州450002 [3]上海同豪土木工程咨询有限公司,上海200092

出　　处：《河南科学》2009年第8期961-963,共3页Henan Science

摘　　要：深基坑工程的坑底隆起稳定性受多种随机性与模糊性因素影响.将模糊概率和可靠度分析法结合起来,引入了深基坑隆起破坏分析的普朗特尔公式,通过实例分析,计算了深基坑隆起失稳的模糊破坏概率和模糊可靠度.结果说明,模糊随机方法能够合理地反映基坑的实际稳定性.The heave stability of deep foudation pit is effected by a number of random and fuzzy factors. Combining fuzzy probability and reliability analysis, introducing the Prandtl formula on bulge fracture analysis of deep foundation pit,fuzzy failure probability and fuzzy reliability is calculated by means of a project example on the heave instability of deep foundation pit. The results showed that fuzzy-random analysis can reasonably reflect the actual stability of foundation fit.

关 键 词：深基坑 隆起破坏 普朗特尔公式 模糊可靠度 破坏概率 

分 类 号：TU441.35[建筑科学—岩土工程]