柔性墙面加筋土挡墙地基和墙面变形相关性分析  

Analysis of Deformation Relevance between Foundation and Flexible Facing for Geosynthetic-reinforced Soil Retaining Walls on Soft Clay

作　　者：陈建峰[1,2] 秦浩[1] 

机构地区：[1]同济大学地下建筑与工程系,上海200092 [2]同济大学岩土及地下工程教育部重点实验室,上海200092

出　　处：《力学季刊》2010年第3期425-429,共5页Chinese Quarterly of Mechanics

基　　金：国家自然科学基金资助项目(50508030);上海市重点学科建设项目资助(B308)

摘　　要：软土地基柔性墙面加筋土挡墙地基产生的差异沉降会导致其墙面产生一定程度的角度变化,这改变了挡墙墙面的初设倾角,并对挡墙稳定性产生影响。本文对软土地基上土工格栅加筋土柔性墙面挡墙进行了不同填土和地基土情况下的数值模拟,得出墙面斜率与挡墙底部最大沉降差(底筋两端沉降差)之间呈一相关性很好的幂函数关系,该关系对于软土地基柔性墙面加筋土挡墙的设计和施工有重要意义。The differential settlement at bottom of geogrid-reinforced soil retaining wall （RSW） with wrap-around facing on soft clay will induce the tilt of facing, which changes the design tilt of the facing and consequently affect the stability of RSW. The finite element modeling were performed on RSW with various foundations and fillings. The results show that there exhibits a statistical well fitting power function relationship between the facing slope and the maximum settlement at the bottom of RSW. This relationship is verified by a reference result and will be of great significance for the design and construction of RSW with wrap-around facing on soft clay.

关 键 词：挡土墙 加筋土 软土地基 相关性 数值模拟 

分 类 号：TU44[建筑科学—岩土工程]