基于地下水保护理念的公路隧道防排水技术研究
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摘要
富水岩溶隧道过度排水极易导致生态环境破坏,同时诱发隧道产生衬砌开裂、渗漏水、底板隆起、突涌水等病害,严重影响隧道施工及运营安全。结合典型工程案例,全面分析其工程特性,阐述隧道地下水平衡理念,深入分析其隧道防排水设计方案及注浆限排技术,全面构建了基于地下水保护理念的隧道防排水技术体系。研究成果可为类似工程提供理论支撑及技术指导作用。
The overdrainage of water-rich karst tunnels easily leads to destruction of ecological environment and induces defects like lining cracking, water leakage, bottom uplift and sudden water inflow simultaneously,which seriously influence the construction and operation safety of tunnel. Combined with typical project case, this paper comprehensively analyzed the engineering properties, expounded tunnel groundwater balance concept, and deeply analyzed waterproof and drainage design scheme and grouting discharge limiting technology, which built a tunnel waterproof and drainage technical system based on groundwater protection concept. The research achievements could be taken as theoretical support and technical guidance for the similar projects.
The overdrainage of water-rich karst tunnels easily leads to destruction of ecological environment and induces defects like lining cracking, water leakage, bottom uplift and sudden water inflow simultaneously,which seriously influence the construction and operation safety of tunnel. Combined with typical project case, this paper comprehensively analyzed the engineering properties, expounded tunnel groundwater balance concept, and deeply analyzed waterproof and drainage design scheme and grouting discharge limiting technology, which built a tunnel waterproof and drainage technical system based on groundwater protection concept. The research achievements could be taken as theoretical support and technical guidance for the similar projects.
引文
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[3]李苍松,胡元芳,丁建芳,等.隧道地下水处治的设计理论及方法研究[J].工程地质学报,2012,20(5):832-840.
[4]华福才.基于地下水动力学的地铁隧道裂隙水预测分析[J].现代隧道技术,2015,52(2):78-86.
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