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Factors and Control Measures on Uprooting Locked Port Tube in Soft Soil Area
Author(s): 
Pages: 50-54
Year: Issue:  6
Journal: Urban Mass Transit

Keyword:  软土地区地下连续墙锁口管顶拔施工;
Abstract: 软土地区地下连续墙施工过程中,锁口管接头易出现顶拔困难,导致埋管及异型幅导墙压溃破坏等问题.以软土地区某明挖地铁区间地下连续墙施工为例,结合一典型事故案例,通过计算分析以及室内模型试验相结合的方法,探讨了软土地区地下连续墙锁口管顶拔施工存在的问题和优化措施.结果表明:锁口管变形、混凝土温度、顶拔时机等因素对锁口管起拔阻力均有较大影响.为此,应采取减少槽段超挖与单元槽段槽壁坍塌、调整异型幅连续墙施工...
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