Application of CSM method in control of confined groundwater of deep excavations in soft soils
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摘要: 以上海前滩33-01地块项目深基坑工程为背景,介绍了软土地区深厚承压水含水层的水文地质条件下,在上海地区首次采用50 m深CSM工法等厚度水泥土搅拌墙作为落底式止水帷幕,隔断承压水含水层,保护基坑及周边环境的安全。通过CSM工法钻芯取样结果以及基坑监测数据的分析表明,基坑工程采取CSM工法等厚度水泥土搅拌墙,隔水效果良好,有效的控制了基坑降承压水对周边保护对象的影响,可以为类似工程提供一定的参考。Abstract: Based on the deep excavation project of Shanghai Qiantan Block 33-01, the choice and analytic thoughts of deep excavation support systems are put forward for the hydrogeological conditions of deep confined aquifer in soft soil areas. The technical countermeasures corresponding to the control of confined groundwater of the deep excavation are introduced. In order to reduce the the adverse effects of pit construction on the surrounding environment, the confined water layer is blocked by the CSM method constant-thickness cement-soil wall. The monitoring data indicate that the surrounding environment is effectively protected by the proposed support design and implementation. Furthermore, these solutions may provide valuable reference for other similar projects in soft soils.
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[1] 高凤栋, 廖春华, 胡正亮, 等. CSM工法在天津软土地区超深基坑的应用[J]. 探矿工程(岩土钻掘工程), 2014, 41(5): 77-80.
(GAO Feng-dong, LIAO Chun-hua, HU Zheng-liang, et al.Application of CSM method in super deep foundation pit support engineering in soft soil area of Tianjin[J]. Exploration Engineering (Rock & Soil Drilling and Tunneling), 2014, 41(5): 77-80. (in Chinese))[2] 吴海艳, 林森斌. CSM工法在深基坑支护工程中的应用[J].路基工程, 2013(2): 168-173.
(WU Hai-yan, LIN Sen-bin.Application of CSM method in deep foundation pit support engineering[J]. Subgrade Engineering, 2013(2): 168-173. (in Chinese))[3] 魏祥, 梁志荣, 李博, 等.TRD水泥土搅拌墙在武汉地区深基坑工程中的应用[J]. 岩土工程学报, 2014, 36(增刊2): 222-226.
(WEI Xiang, LIANG Zhi-rong, LI Bo, et al.Application of TRD cement-soilwall in deep excavations in Wuhan area[J]. Chinese Journal of Geotechnical Engineering, 2014, 36(S2): 222-226. (in Chinese))[4] 李成巍, 李伟, 梁志荣. 软土地区复杂环境条件下深基坑变形控制设计与实践[J]. 建筑科学, 2016, 32(增刊2): 151-155.
(LI Cheng-wei, LI Wei, LIANG Zhi-rong.Design and application of deformation control of the deep excavation with complex environment in soft soils[J]. Building Science, 2016, 32(S2): 151-155. (in Chinese)) -
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