浅论基于地基承载力设计的地基稳定性的可靠性分析  

The Saperficial View on Reliability Analysis of Foundation stability Based on the Design of Foundation Bearing Capacity

作　　者：陈东风[1] 郑金丰[1] 

机构地区：[1]塔里木农垦大学水利系

出　　处：《塔里木农垦大学学报》1994年第2期66-71,共6页Journal of Tarim University of Agricultural Reclamation

摘　　要：地基稳定性是地基设计中必须考虑的一个控制因素。本文在按地基承载力设计的基础上,采用普朗特尔极限承载力公式和魏锡克极限承载力公式,并结合概率统计理论对地基稳定性进行了可靠性分析,分析中土的内聚力C、内摩擦角ψ及土的容重γ皆为随机变量且服从正态分布规律,由此得出了地基稳定的可靠性指标和失效概率,定量分析了地基稳定的可靠度。Foundation stability is a Controled factor that must be considerded on foundation design. In this paper ,on the basis of the desognof foundation bearing Capacity, the relinbility analysis for foundation stabilyty is studied , Which not only use the formula of prantdl linit bearing capacity and vesis linit bearing capality.but also combine probability theory. C ·(?)? and γof cohesive soil are also random variables that obey normal distri bution low ,Hence the reliability index and probability of failure of foundation stubility are given·Lt andlyses quantitatirely the reliabilyty of foundation stability

关 键 词：地基承载力 地基稳定 可靠性分析 稳定性 

分 类 号：TU470.3[建筑科学—结构工程]