朗肯土压力局限性的有限元法分析  

On finite elementary methods of limitation of Coulomb earth pressure

作　　者：李可[1] 

机构地区：[1]广东省电力设计研究院

出　　处：《山西建筑》2011年第30期78-79,共2页Shanxi Architecture

摘　　要：针对挡土墙上主动土压力计算方法中朗肯理论的局限性,运用有限元法对其进行了分析,以Mohr-Coulomb准则作为屈服准则进行计算,得出设计时如无实测资料,用有限元计算的土压力比用朗肯理论计算出的土压力更安全。The paper adopts the finite elementary method to analyze the limitation of Coulomb theory in the calculation method of the active earth pressure of the retaining walls,undertakes the calculation with Mohr-Coulomb principle,which is regarded as the yield criterion,and concludes that it is much safer to adopt the finite elementary method to calculate the earth pressure than the Coulomb theory if there is no tested data in the design.

关 键 词：土压力 朗肯理论 局限性 有限元法 接触 

分 类 号：TU413[建筑科学—岩土工程]