侧向水土压力计算方法的对比研究  

Comparative study on lateral water and earth pressures on retaining structures

作　　者：罗文林[1] 韩煊[1] 刘赪炜[1] 

机构地区：[1]北京市勘察设计研究院有限公司,北京100038

出　　处：《岩土工程学报》2010年第S1期83-88,共6页Chinese Journal of Geotechnical Engineering

基　　金：北京市科技计划(Y0605010040821);北京市优秀人才培养资助项目(2008F-13)

摘　　要：以有效应力原理以及朗肯土压力理论为基础,分析了侧向水土压力计算的问题。孔隙水压力的计算和土体强度指标的取值对水土压力的计算结果影响很大。基于孔隙水压力的分类建议,给出了几种不同孔隙水压力情况下侧向水土压力的计算公式。对比了不同孔隙水压力条件下土体强度指标的取值对侧向土水压力计算的影响。最后对侧向水土压力计算中土体强度指标的取值给出了建议。Based on the effective stress principle and Rankine earth pressure theory,the calculation method of lateral water and earth pressures on retaining structures is discussed.The type of pore water pressure and the selection of strength parameters which have important effect in estimating the water and earth pressures on retaining structures should be considered.Based on the classification of pore water pressures,the formula of lateral water and earth pressure is given under different pore water pressure conditions.Furthermore,the effect is compared under different pore water pressure conditions on selection of strength parameters in estimating lateral water and earth pressures.Finally,some advices are given on how to choose the strength parameters in estimating the water and earth pressures on retaining structures.

关 键 词：土压力 水压力 孔隙水压力 强度指标 基坑工程 

分 类 号：TU432[建筑科学—岩土工程]