摘要
为研究如何在有限的中心城区地下空间内建设超深、高刚度的地下连续墙,上海市轨道交通19号线世博大道站工程项目在基坑围护施工中引入锁扣型钢地下连续墙施工法,开展该工法的试验研究。阐述了该工法的关键施工工艺,并对其实际应用效果进行了分析。结果表明锁扣型钢地下连续墙在中心城区软体地区深基坑围护施工中具有一定的可行性。该工法钢构件工厂化制作、止水效果好并能节约施工场地,特别是在中心城区场地面积狭小大规模工程的快速施工中能发挥其优越性能。
In order to study how to construct the ultra-deep high-rigidity underground diaphragm wall within the limited underground space of central urban area, the lock section steel underground diaphragm wall method is introduced into the construction of foundation pit support in Shanghai Metro Line 19 Shibo Avenue Station Project. The experimental study on this construction method is carried out. The key construction technology of this method is set forth. Its practical application effect is analyzed. The result shows that the lock section steel underground diaphragm wall has certain feasibility in the construction of deep foundation pit support in the soft soil area of the central urban area. The steel components of this method are manufactured in a factory with the good water-stop effect, which can save the construction site, and especially play the high performance in the rapid construction of the narrow-area large-scale projects in the central urban area.
作者
马婧
黄巍
MA Jing;HUANG Wei
出处
《城市道桥与防洪》
2022年第8期208-211,M0022,共5页
Urban Roads Bridges & Flood Control
关键词
基坑围护
锁扣型钢
地下连续墙
foundation pit support
lock section steel
underground diaphragm
