国贸站地下连续墙施工情况介绍及几点思考
侯昭路 从会涛 叶守杰 刘忠晋
（1.成都地铁有限责任公司 四川 成都 610031 2. 中铁西南科学研究院有限公司 四川 成都 610031 3.铁道第四勘察设计研究院 湖北 武汉 430063）
摘要：本文较全面地介绍了深圳地铁1号线一期工程国贸站地下连续墙工程规模及施工情况，阐述了在“上软、下硬”地层，入岩较深条件下连续墙挖槽施工，多种成槽设备工效和特点，并对控制施工进度的地质因素，成槽设备选择及连续墙结构型式提出探讨，可供类似工程借鉴。
关键词：地铁 连续墙 “上软、下硬”地层 设计思考
Construction Technique of the Underground Diaphragm Walls
in Guomao Station on Shenzhen Metro Line NO.1
This paper introduces the underground diaphragm walls and its construction technique in Guomao station on Shenzhen metro line NO.1.It mainly describes the underground diaphragm wall’s construction technique, working efficiency and performance of trench excavators under the conditions of a two-layered stratum with soft upper and hard lower layers and deeply embedded in hard rock. In the end, geologic factors determining construction progress, trench excavators selection and the underground diaphragm walls structural forms are put forward , which can be taken for reference by similar projects.
Key words: metro; underground diaphragm walls; trench excavators;stratum with soft upper and hard lower layers
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