超深地下连续墙护壁泥浆优化  

Cement Slurry Optimization of Ultra-deep Diaphragm Wall

作　　者：赵民[1] 乌效鸣[1] 吴迪[1] 魏林春[2] 王志华[2] Zhao Min Wu Xiaoming Wu Di Wei Linchun Wang Zhihua(Faculty of Engineering, China University of Geosciences, Wuhan, Hubei 430074, China Shanghai Tunnel Engineering Co. , Ltd. , Shanghai 200137, China)

机构地区：[1]中国地质大学(武汉)工程学院,湖北武汉430074 [2]上海隧道工程股份有限公司,上海200137

出　　处：《施工技术》2016年第19期20-22,26,共4页Construction Technology

摘　　要：武汉轨道交通7号线秦园路工作井采用地下连续墙支护结构,最大墙深59m,成槽过程中需要穿越最大厚度达42m的粉细砂层,施工难度大。在研究地下连续墙护壁泥浆功能和机理的基础上,对现有泥浆配方以及泥浆性能进行优化,以节约施工成本。采用多种措施对泥浆质量进行严格控制,以保证施工顺利进行。The diaphragm walls which the largest depth is 59 meters were used in the Wuhan Rail Transit Line 7 issue of Qinyuan Road well. It passed through a silt layer 42m thick and the construction was difficult. Based on the studies of the function and mechanism of protecting walls of cement slurry in the construction of diaphragm walls, the existing slurry formulations were optimized to save construction costs. To ensure the successfully of construction, some measures were adopted to control the quality.

关 键 词：地下工程 地下连续墙 泥浆 配合比 优化 

分 类 号：TU753[建筑科学—建筑技术科学]