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Developing Characteristics of Large Scale Subterranean River in Wuzhuaguan Tunnel on Yichang-Wanzhou Railway as Well as Technology for Comprehensive Treatment
Author(s): 
Pages: 115-118
Year: Issue:  8
Journal: Railway Standard Design

Keyword:  宜万铁路隧道大型暗河发育特征引排注浆;
Abstract: 隧道穿越暗河时极易发生突水突泥灾害,严重影响施工安全,破坏区域水文环境,结合宜万铁路五爪观隧道遭遇的五爪观大型暗河,介绍五爪观暗河的地质背景、地下水发育特征以及隧道穿越暗河段溶洞的发育规模、充填性质、可能发生的灾害类型等,详细论述五爪观隧道穿越暗河段采取的相关工程措施:增设横洞、清除暗河堆积体、归槽引排暗河水、注浆加固、隧道开挖支护等,对类似工程具有重要的借鉴意义.
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