TRD水泥土搅拌墙施工环境影响分析及微变形控制措施

王卫东; 陈永才; 吴国明

doi:10.11779/CJGE2015S1001

TRD水泥土搅拌墙施工环境影响分析及微变形控制措施 English Version

王卫东^{1, 2},
陈永才^{1, 2},
吴国明³

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; 3. 上海广大基础工程有限公司,上海 200032 （13DZ2251400）;上海市科委科研计划子项（13231201006

基金项目: 上海市科委工程技术研发中心平台建设项目

详细信息

作者简介:
王卫东(1969- ),男,博士,教授级高级工程师,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

Impact analysis and macro-deformation control measures of TRD construction cement-soil mixing walls

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; 3. Shanghai Guangda Foundation Engineering Co., Ltd., Shanghai 200032, China

摘要

摘要: TRD水泥土搅拌墙在深大基坑工程中的应用逐渐增多。TRD水泥土搅拌墙在施工过程中不可避免会对邻近土体产生扰动,在复杂的城市环境中水泥土搅拌墙施工扰动可能对周边环境产生一定的影响。在上海虹桥商务区一期08地块项目、上海新闸路西斯文理项目和上海国际金融中心项目基坑工程中,超深水泥土搅拌墙试成墙实施期间对邻近土体侧向位移、地表沉降进行了监测,根据监测结果对水泥土搅拌墙施工环境影响作了系统分析。分析结果表明,TRD水泥土搅拌墙施工过程中对周边环境的影响总体较小,邻近地表最大沉降和土体侧向位移均小于10 mm,主要影响范围在10 m之内,并基于敏感环境的保护要求提出了控制墙体施工微变形影响的技术措施。
- 基坑 /
- TRD工法 /
- 等厚度水泥土搅拌墙 /
- 环境影响 /
- 微变形
Abstract: TRD construction cement-soil mixing walls have been increasingly used in deep and large excavations. The TRD construction will disturb the soils around construction panels and hence influence the nearby facilities when it is used in urban areas. Field monitoring is carried out on lateral soil displacements and ground surface settlements during TRD construction in three projects, i.e., Hongqiao Business District-08 block (phase I), Shanghai Xisiwenli excavation on Xinzha Road, and Shanghai International Financial Center. Based on the field monitoring results, the impact of TRD construction on the nearby environment is systematically analyzed. It is shown that the overall influence of TRD construction on the nearby environment is small. Both the measured maximum ground surface settlement and lateral soil displacement are less than 10 mm in all the three cases. Moreover, the influence zone of TRD construction is within 10 m away from the panel. Some measures for minimizing the deformation during TRD construction are also proposed and discussed.
- excavation /
- TRD construction method /
- constant thickness cement-soil wall /
- environmental impact /
- micro-deformation

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参考文献(7)

[1]	王卫东, 邸国恩, 王向军. TRD工法构建的等厚度型钢水泥土搅拌墙支护工程实践[J]. 建筑结构, 2012, 42(5): 168-171. (WANG Wei-dong, DI Guo-en, WANG Xiang-jun. Engineering practice of the constant thickness steel cement-soil wall constructed by TRD method[J]. Building Structure, 2012, 42(5): 168-171. (in Chinese))
[2]	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))
[3]	李星, 谢兆良, 李进军, 等. TRD工法及其在深基坑工程中的应用[J]. 地下空间与工程学报, 2011, 7(5): 945-950. (LI Xing, XIE Zhao-liang, LI Jin-jun, et al. TRD method and its applications in the deep excavation engineering[J]. Chinese Journal of Underground Space and Engineering, 2011, 7(5): 945-950. (in Chinese))
[4]	王卫东, 邸国恩. TRD工法等厚度水泥土搅拌墙技术与工程实践[J]. 岩土工程学报, 2012, 34(增刊1): 628-633. (WANG Wei-dong, DI Guo-en. Engineering practices of constant thickness steel cement-soil wall constructed by TRD method[J]. Chinese Jounal of Geotechnical Engineering, 2012, 34(S1): 628-633. (in Chinese))
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[6]	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))
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TRD水泥土搅拌墙施工环境影响分析及微变形控制措施 English Version

作者简介: 王卫东(1969- ),男,博士,教授级高级工程师,主要从事地基基础与地下工程的设计研究。

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Impact analysis and macro-deformation control measures of TRD construction cement-soil mixing walls

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作者简介:
王卫东(1969- ),男,博士,教授级高级工程师,主要从事地基基础与地下工程的设计研究。