六盘山隧道涌水量预测方法研究  

Study of the Prediction Method of Water Yield of the Liupan Mountain Tunnel

作　　者：陈秀义 CHEN Xiuyi(Lanzhou Railway Design Institute Co.Ltd.,Lanzhou Gansu 730000,China)

机构地区：[1]兰州铁道设计院有限公司,甘肃兰州730000

出　　处：《铁道建筑技术》2020年第10期37-41,共5页Railway Construction Technology

基　　金：中铁第一勘察设计院集团有限公司科研项目(09-33)。

摘　　要：六盘山特长隧道是天水至平凉铁路最长的控制性隧道,水文地质条件复杂,地下水丰富。为保证隧道施工安全顺利进行,在地质调绘和分析区域地质资料的基础上,采用大气降水入渗法、地下径流模数法、地下水动力学法对隧道涌水量进行预测,并与实际施工过程中涌水量进行对比,对各种方法的适用条件、存在的问题和水文地质参数选取进行探讨分析。结果表明,通过合理选取水文地质参数,地下径流模数法能较准确地预测该地区隧道涌水量。研究结论可为隧道涌水量预测方法、参数选取提供参考,为隧洞设计及施工提供理论依据。The Liupan Mountain Special-long Tunnel is the longest controlling tunnel of Tianshui-Pingliang Railway,with complex hydrogeological conditions and abundant groundwater.On the basis of geological mapping and analysis of regional geological data,the paper predicted the water inflow from the tunnel to ensure the safety and smoothness of tunnel construction by using the methods of precipitation infiltration,underground runoff modulus and groundwater dynamics,and compared with the water inflow in the actual construction process.Then,the application conditions,existing problems and hydrogeological parameters selection from the above mentioned methods were discussed and analyzed.The results show that the modulus method of groundwater runoff can accurately predict the water flow from the tunnel in this area by reasonably selecting hydrogeological parameters.The conclusion can provide reference for the method of tunnel water yield prediction and parameter selection,and lay theoretical basis for tunnel design and construction.

关 键 词：隧道涌水量 裂隙水 预测方法 地质条件 

分 类 号：U453.6[建筑科学—桥梁与隧道工程] U456.3[交通运输工程—道路与铁道工程]