砂土中格形地下连续墙力学性能离心试验研究  

Centrifugal model tests on mechanical property of gridding continuous diaphragm walls in sand

作　　者：左玉柱[1] 徐伟[1] 徐赞云[1] 

机构地区：[1]同济大学建筑工程系,上海200092

出　　处：《岩土工程学报》2010年第S1期473-477,共5页Chinese Journal of Geotechnical Engineering

基　　金：上海市科学技术委员会科研计划项目(08201201102)

摘　　要：目前在实际工程中,格形地下连续墙设计主要采用类似于重力坝式挡土墙的设计方法,对格形地下连续墙的力学性能缺乏理论研究。运用离心机模拟格型地下墙在砂土中的受力情况,在模型试验中,主要对墙体应变、墙体位移和土压力进行了研究,结果表明:格形地下连续墙由于有中间隔墙其整体性较好,墙体位移有类似于重力坝的整体倾覆位移模式,前、后墙间的土压力没有明显的变化规律。Currently in practical engineering,the design of gridding continuous diaphragm walls is similar to that of gravity-type retaining walls.The mechanical property of the gridding continuous diaphragm walls is lack of theoretical research.The centrifugal model tests are used to study their mechanical property in the sand.In the model experiments,the strain of the walls,the wall displacement and earth pressure are studied.The results show that the integrity of the gridding continuous diaphragm walls is satisfactory due to its middle panel wall.The wall displacement is similar to the overall collapse of gravity displacement mode,and the earth pressure between the front and behind walls has no significant change.

关 键 词：格形地下连续墙 离心机 实验研究 受力分析 

分 类 号：U655.54[交通运输工程—港口、海岸及近海工程]