摘要
城市轨道交通工程一般位于城市中心区,各类管线密布,管线改迁工作往往极大程度的制约着轨道交通工程的进度、投资。通过优化施工方案,减少管线改迁工作量,可有效的推进工程进展及节约工程投资,减少对市民的影响。以某地铁标准站车站长深地连墙施工为例,通过采用＂优化地连墙分幅＂＂分节吊装＂与＂分片平移吊装＂相结合的施工工艺,成功实现了110kV高压线下（限高9.8m）长深地连墙（39m）的安全快速施工,有效的避免了管线改迁,产生了良好的经济、社会效益。
City light rail lines are usually located in the urban area with densely distributed underground and aerial utilities.As a result,the utility relocation work somewhat is a critical factor that impact the light rail construction cost and schedule.If light rail alignment can be optimized to minimize the utility relocation,the construction schedule,the investment cost as well as the disturbance to the adjacent environment will be reduced.This paper presents a case history of underground slurry wall for the standard station of a Metro project.The innovative design and construction methods,such as ＂optimization of wall segment＂,＂piecewise lifting＂and＂piecewise translational lifting＂,were used in the project.A 39 meters long deep slurry wall underneath the 110 kV high voltage power line with a net clearance limit of 9.8 meters was successfully constructed within the planned construction schedule.The slurry wall construction was also minimize the utility relocation and was proved as cost effective.
作者
牛永宝
NIU Yongbao(Foshan Railway Investment and Construction Group Co. , Ltd. , Foshan 52800)
出处
《土工基础》
2018年第3期278-280,313,共4页
Soil Engineering and Foundation
关键词
高压线
长深地连墙
施工技术
High Voltage Power Lines
Long and Deep Slurry Wall
Construction technique
