基坑支护新技术在敏感环境深大地下工程中的应用

陈永才

doi:10.11779/CJGE2015S2015

基坑支护新技术在敏感环境深大地下工程中的应用 English Version

陈永才^{1, 2}

1. 华东建筑设计研究总院地基基础与地下工程设计研究中心,上海 200002; 2. 上海基坑工程环境安全控制工程技术研究中心,上海 200002 术研发中心平台建设项目（13DZ2251400

基金项目: 国家科技支撑计划（2012BAJ01B02）; 上海市科委工程技

详细信息

作者简介:
陈永才(1983- ),男,硕士,工程师,主要从事地基基础与地下工程的设计研究。

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出版历程
- 收稿日期: 2015-03-25
- 发布日期: 2015-07-24

Application of a new retaining structure in deep underground projects adjacent to sensitive environment

CHEN Yong-cai^{1, 2}

1. Department of Underground Structure & Geotechnical Engineering, East China Architecture Design & Research Institute, Shanghai 200002, China; 2. Shanghai Engineering Research Center of Safety Control for Facilities Adjacent to Deep Excavations, Shanghai 200002, China

摘要

摘要: TRD水泥土搅拌墙技术和“桩墙合一”技术是基坑支护工程中的新技术。南京生态公园项目周边邻近诸多城市干道、地铁隧道、市政管线,环境保护要求较高。文章介绍了该基坑工程的工程概况及总体设计方案,重点说明针对为保护地铁而采用的TRD水泥土搅拌墙、为节能降耗而采取的“桩墙合一”等关键技术,并对主要的监测结果作了分析。该基坑工程已顺利完成,设计方案的实施保证了该工程紧迫的工期要求,大幅节省了工程造价,并很好地保护了基坑周边的环境。
- 基坑工程 /
- 桩墙合一 /
- TRD水泥土搅拌墙 /
- 承压水
Abstract: Both the TRD construction method and dual-purpose wall method are newly developed retaining techniques for excavations. Adjacent to the excavation of Nanjing Ecological Park, there are several streets, a metro station, tunnels and a lot of municipal pipelines. The general information of the project and the design work of the deep excavation are introduced. In particular, the details of the TRD construction method used for protecting the metro station and the dual-purpose wall method adopted for energy saving purpose are introduced. The field monitoring results on the performance of the excavation are discussed as well. With the help of these new techniques, the excavation has been successfully completed. The monitoring results show that the influences of the excavation on the adjacent environments are limited by using the TRD construction method and dual-purpose wall method.
- excavation /
- dual-purpose wall method /
- TRD construction method /
- confined water

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参考文献(4)

[1]	刘国彬, 王卫东. 基坑工程手册[M]. 2 版. 北京: 中国建筑工业出版社, 2009. (LIU Guo-bin, WANG Wei-dong. Excavation engineering handbook[M]. 2nd ed. Beijing: China Architecture & Building Press, 2009. (in Chinese))
[2]	王卫东, 沈健.基坑围护排桩与地下室外墙相结合的“桩墙合一”的设计与分析[J]. 岩土工程学报, 2012, 34(增刊): 303-308. (WANG Wei-dong, SHEN Jian. Design and analysis of unity of support piles and basement external walls[J]. Chinese Journal of Geotechnical Engineering, 2012, 34(S0): 303-308. (in Chinese))
[3]	王卫东, 常林越, 谭轲. 采用TRD工法控制承压水的邻近地铁深基坑工程设计与实践[J]. 岩土力学, 2012, 42(5): 168-171. (WANG Wei-dong, CHANG Lin-yue, TAN Ke. Design and practice of a deep excavation using TRD construction method cutting off confined water nearby subway tunnel[J]. Rock and Soil Mechanics, 2012, 42(5): 168-171. (in Chinese))
[4]	王卫东, 翁其平, 陈永才. 56 m深TRD工法搅拌墙在深厚承压含水层中的成墙试验研究[J]. 岩土力学, 2014, 35(11): 3247-3252. (WANG Wei-dong, WENG Qi-ping, CHEN Yong-cai. Experimental investigation of construction of a 56m deep constant thickness cement-soil wall using Trench Cutting Re-mixing Deep Wall (TRD) method in deep aquifers[J]. Rock and Soil Mechanics, 2014, 35(11): 3247-3252. (in Chinese))