特殊地层条件的基坑变形伺服控制研究  

RESEARCH ON SERVO CONTROL OF FOUNDATION PIT DEFORMATION BASED ON SPECIALSTRATUM ENVIRONMENT

作　　者：赵冉冉 ZHAO Ranran(Tengda Construction Group,Shanghai 300122,China)

机构地区：[1]腾达建设集团股份有限公司,上海300122

出　　处：《低温建筑技术》2023年第9期75-79,共5页Low Temperature Architecture Technology

摘　　要：为研究伺服钢支撑主动控制时特殊地层条件下基坑变形规律,选取某基坑6个代表性断面进行监测,对地下连续墙水平位移、支撑轴力变化、地表沉降三方面监测数据进行分析,发现伺服钢支撑能够有效限制墙体位移,伺服系统钢混支撑体系对墙体变形的控制效果优于全混凝土和普通钢混支撑体系。This paper studies the deformation law of a foundation pit under special stratigraphic conditions when ser⁃vo steel support is actively controlled.Six representative sections of a foundation pit are selected for monitoring,in which horizontal displacement of underground diaphragm wall,change of support axial force,and surface settlement are analyzed.It is found that the servo steel support effectively limits the displacement of the wall.The control effec⁃tiveness of the combination system of servo system steel support and concrete support on wall deformation is better than that of the all-concrete support system and the combination system of ordinary steel support and concrete support.

关 键 词：地下连续墙水平位移 钢支撑 支撑轴力 地表沉降 

分 类 号：TU441[建筑科学—岩土工程]