地铁车站富水砂层基坑涌水事故分析与处置
庄全贵
Analysis and Disposal of Water Surge Accident in Metro Station Foundation Pit Built in Water-rich Silt Stratum
ZHUANG Quangui
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作者信息:福州地铁集团有限公司，350009，福州
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Affiliation:Fuzhou Metro Group Co., Ltd., 350009, Fuzhou, China
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关键词:
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Key words:
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DOI:10.16037/j.1007-869x.2020.08.025
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中图分类号/CLCN:TU753.8; U231.4
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栏目/Col:研究报告
摘要:
地铁基坑工程建设施工的成败与降水有着密不可分的关系，尤其对于富水砂层，其地下水的处理至关重要。以福州地铁某车站降水过程中疏干井壁突涌事件为例，在分析事故原因和处理措施的基础上，针对事故采取了新的降水设计和验算，并提出了针对富水砂层深基坑降水的控制措施。
Abstracts:
The success or failure of metro foundation pit project is closely related to the precipitation, especially for the water-rich silt stratum, in such a case, the treatment of underground water is crucial. Taking a water surge accident of drainage shaft well occurred during rainfall at a metro station in Fuzhou City as an example, and based on the accident cause analysis and the disposal measures, a new precipitation design and checking calculation targeting at the accident is adopted, corresponding risk control measures in the dewatering process of deep foundation pit built in water-rich silt stratum are proposed.
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