| 复杂地质条件地铁车站深基坑承压水降水施工技术 |
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| 引用本文： | 赵玉华.复杂地质条件地铁车站深基坑承压水降水施工技术[J].路基工程,2021,0(3):159-164. |
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| 作者姓名： | 赵玉华 |
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| 作者单位： | 中铁十八局集团第三工程有限公司，天津 300222 |
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| 摘 要： | 以太原市轨道交通2号线人民南路站深基坑降水工程为依托，基于理论分析和现场应用，对该类复杂地质条件下地铁车站深基坑承压水降水方案与施工工艺展开研究，确定了管井降水方法:基坑内外降水(压)井的布置方式、关键技术参数、施工工艺与技术要求。监测数据表明:15天内基坑水位降深达13.81 m，低于基底标高1.41 m，满足规范要求，验证了降水方案的有效性。
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| 关 键 词： | 复杂地质条件 深基坑 地下水 管井降水 方案设计 |
| 收稿时间： | 2021-03-08 |
Construction Technology of Confined Water Dewatering for Deep Foundation Pit of Subway Station under Complex Geological Conditions |
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| Abstract: | Based on the deep foundation pit dewatering project of Renmin South Road Station of Taiyuan Metro Line 2, this paper studies the dewatering scheme and the construction technology for confined water in deep foundation pit construction of subway station under complex geological conditions by theoretical analysis combined with field application, and it determines the pipe well dewatering methods: the layout of dewatering wells inside and outside the foundation pit, key technical parameters and the construction technology and technical requirements.The monitoring data indicates that the water level of the foundation pit drops up to 13.81 m within 15 days, and is 1.41 m lower than the bottom of the pit, which meets the specification requirements. The above results verifies the effectiveness of the dewatering scheme. |
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