| 叙（永）大（村）铁路某高压充水溶洞隧道安全厚度数值模拟 |
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| 引用本文： | 周毅,邓辉,徐静.叙（永）大（村）铁路某高压充水溶洞隧道安全厚度数值模拟[J].中国地质灾害与防治学报,2012,23(3):82-85. |
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| 作者姓名： | 周毅 邓辉 徐静 |
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| 作者单位： | 成都理工大学地质灾害防治与地质环境保护国家重点实验室,四川成都,610059 |
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| 摘 要： | 以隧道前方高压充水溶洞为研究对象，将叙（永）大（村）铁路某岩溶隧道作为工程背景，采用数值模拟的研究手段，通过较为全面系统的模拟分析，研究多级水压，不同围岩级别条件下隧道围岩稳定性，确定隧道施工安全厚度值，并分析总结出水压因素是较围岩级别因素更主要影响安全厚度值的结论，为隧道的安全施工及灾害防治与预警提供借鉴与参考。
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| 关 键 词： | 可溶岩区隧道 高压充水溶洞 安全厚度 数值模拟 |
Numerical simulation on safe thickness in tunnel with a karst cave filled with high pressure water in Xuyong to Dacun railway |
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| ZHOU Yi,DENG Hui,XU Jing.Numerical simulation on safe thickness in tunnel with a karst cave filled with high pressure water in Xuyong to Dacun railway[J].The Chinese Journal of Geological Hazard and Control,2012,23(3):82-85. |
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| Authors: | ZHOU Yi DENG Hui XU Jing |
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| Institution: | (State Key Laboratory of Geo-hazard Prevention and Geo-environment Protection, Chengdu University of Technology,Chengdu,Sichuan 610059,China) |
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| Abstract: | Karst cave with high pressure water in tunnel is taken as a study case,some karst tunnel belonging to the railway from Xu Yong to Da Cun is taken as background,the method called numerical simulation is applied,comprehensive and systematic simulation analysis is made,then the stability of surrounding rock of the tunnel in the condition of different water pressures and different classifications of surrounding rock is studied.As a result,the safe thickness is determined,and the conclusion that water pressure,compared with classification of surrounding rock,is the main factor influencing safe thickness is drawn,which can be taken as a reference to safe construction as well as hazard prevention and early warning. |
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| Keywords: | tunnel in karst area karst cave filled with high pressure water safe thickness numerical simulation |
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