加筋挡土墙在二维超静孔压下的稳定分析  

STABILITY ANALYSIS OF REINFORCED RETAINING WALL UNDER EXCESS HYDROSTATIC PRESSURE

作　　者：李广信[1] 陈平[1] 介玉新[1] 温庆博[1] 

机构地区：[1]清华大学

出　　处：《土木工程学报》2001年第3期103-106,110,共5页China Civil Engineering Journal

基　　金：国家自然科学基金 (批准号 594790 1 6);清华大学水利系基础研究基金资助

摘　　要：当加筋挡土墙后填土为粘性土时 ,在其中可能会产生超静孔隙水压力。超静孔压的存在使其土压力的大小及分布、潜在滑裂面的位置都有所改变。一维孔压分布情况下朗肯理论仍能适用。但在二维孔压分布情况下 ,用朗肯理论进行计算就不合适。本文推荐采用图解法计算墙后土压力 ,用圆弧滑动法进行稳定校核。If a reinforced retaining wall is backfilled with cohesive soil, excess hydrostatic pressure may be induced under certain conditions The excess hydrostatic pressure has influence on the potential failure surface in the backfill, as well as on the soil pressure and its distribution The Rankine's theory can be used for the pore water pressure in onedimensional state It cannot be used in two?dimensional state A graphical?analysis method is proposed in the paper to calculate the soil pressure The circular slip method is suggested to calculate its safety factor A retaining wall with positive pressure and a soil nailing system with negative pressure in pit are also discussed

关 键 词：加筋挡土 超静孔隙水压力 圆弧滑动法 

分 类 号：TU476.4[建筑科学—结构工程]