Analytical solution for steady seepage into a circular deep-buried mountain tunnel with grouted zone in anisotropic strata

作     者：YAN Qi-xiang ZHANG Tian ZHANG Chuan GUO De-ping QING Song-yong YAN Qi-xiang;ZHANG Tian;ZHANG Chuan;GUO De-ping;QING Song-yong

作者机构：Key Laboratory of Transportation Tunnel EngineeringMinistry of EducationSouthwest Jiaotong UniversityChengdu 610031China School of Civil EngineeringSouthwest Jiaotong UniversityChengdu 610031China Key Laboratory of Geotechnical and Underground Engineering of Ministry of EducationTongji UniversityShanghai 200092China Xuzhen Railway Co.Ltd.Zhaotong 657900China 

出 版 物：《Journal of Mountain Science》 (山地科学学报（英文）)

年 卷 期：2022年第19卷第10期

页      面：2987-2998页

核心收录：

学科分类：0830[工学-环境科学与工程（可授工学、理学、农学学位）] 081406[工学-桥梁与隧道工程] 08[工学] 0814[工学-土木工程] 082301[工学-道路与铁道工程] 0823[工学-交通运输工程] 

基　　金：financially supported by the National Natural Science Foundation High Speed Railway Joint Fund of China(No.U1734205) the Open Research Fund Project of Key Laboratory of Geotechnical and Underground Engineering of Ministry of Education,Tongji University(No.KLETJGE-B2104) 

主　　题：Deep-buried tunnel Analytical solution Groundwater inflow Anisotropic strata Conformal mapping Grouted zone 

摘      要：Due to the existence of a large number of discontinuous fractures and interfaces in tunnel surrounding rocks,the groundwater inflow into tunnel generally presents significant ***,it is of great significance to consider the anisotropic permeability when dealing with water gushing-induced engineering accidents in water-rich mountain tunnels with large burial *** this study,based on the complex variable method and the seepage flow theory,a theoretical model of water inflow into a deep-buried circular tunnel in a fully saturated,anisotropic and semi-infinite aquifer is *** influence of grouted zone,initial support and secondary lining is fully *** comparison to the existing analytical methods and numerical results,the reliability of this proposed analytical solution is well *** is indicated from the parametric study that the groundwater inflow into tunnel presents an upward trend with an increasing value of the strata permeability in the vertical ***,the water inflow rate and the total water head decrease with the growth of the thickness of grouting *** is suggested that reasonable grouting thickness and permeability should be controlled to enhance the grouting *** study provides a practical method for estimating the water inflow into a deep-buried,grouted and lined mountain tunnel considering the anisotropic strata permeability.