渝利线箭沱湾隧道岩溶水文地质问题
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摘要
箭沱湾隧道为渝利线重要控制工程之一,查明隧道穿越区内的主要水文地质问题,对进一步评价隧道涌水对工程与环境的影响、方案稳定、隧道(涌)突水地质灾害防治等都具有重要意义。通过对隧道区内暗河系统形成条件、水化学特征分析,就同位素特征及环境演化、暗河系统补径排条件等水文地质问题进行了深入研究,从而推断出了隧道与暗河系统的位置关系,提出了线路穿越明月山背斜的安全位置。
Jiantuowan Tunnel is one of important key projects in Yu-Li Railway,ascertaining the main hydrogeological problems in tunnel-through area is of great significance in further evaluating the influence of tunnel water gushing on engineering and environment,determining line scheme and preventing and controlling geologic hazard such as water(gushing)bursting etc.in tunnel.Through the analysis of generation conditions and hydrochemistry feature of underground river system in tunnel area,as well as further study of the isotope feature,environment evolution,of the conditions of supplemental runoff and outflow of underground river system,the location relation between tunnel and underground river system is inferred and then the safe location for tunnel passing through Mingyueshan mountain anticline is presented.
Jiantuowan Tunnel is one of important key projects in Yu-Li Railway,ascertaining the main hydrogeological problems in tunnel-through area is of great significance in further evaluating the influence of tunnel water gushing on engineering and environment,determining line scheme and preventing and controlling geologic hazard such as water(gushing)bursting etc.in tunnel.Through the analysis of generation conditions and hydrochemistry feature of underground river system in tunnel area,as well as further study of the isotope feature,environment evolution,of the conditions of supplemental runoff and outflow of underground river system,the location relation between tunnel and underground river system is inferred and then the safe location for tunnel passing through Mingyueshan mountain anticline is presented.
引文
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