摘要
喀斯特区隧道在高水压条件下衬砌水害突出,结构安全性严重影响隧道运营安全。针对运营期高水压喀斯特隧道的衬砌安全问题,文章以贵广高铁斗篷山隧道为依托,结合三维数值模拟,提出了运营期高水压喀斯特隧道衬砌安全分级方法,探讨了运营期铁路隧道的水害处治措施,得出如下结论:以仰拱中心水压力和隆起值作为安全分级的控制值,高水压喀斯特隧道衬砌结构对应4种安全状态;贵广高铁斗篷山隧道水害处治中,衬砌安全等级为C级,基于“降速通行,及时处理”的原则采取措施,其中泄水减压和结构补强是较为有效的工程措施。
Under the condition of high water pressure,the lining water disaster of tunnels in karst areas is prominent,and the structural safety seriously affects the safety of tunnel operation.In view of the lining safety problems of high water pressure karst tunnel during operation period,based on Doupengshan Tunnel on Guiyang-Guangzhou High-speed Railway,combined with three-dimensional numerical simulation,this paper puts forward the lining safety classification method of high water pressure karst tunnel during operation period,and discusses the water disaster treatment measures of railway tunnel during operation period.The following conclusions are drawn:the water pressure and uplift value in the center of the inverted arch are taken as the control value of safety classification,the lining structure of high water pressure karst tunnel corresponds to four safety states;in the treatment of water disaster in Doupengshan Tunnel on Guiyang-Guangzhou High-speed Railway,the safety level of the lining is Class C.Based on the principle of"reducing speed for passage and timely treatment",measures are taken,among which drainage decompression and structural reinforcement are more effective engineering measures.
作者
朱志远
喻渝
王闯
谭信荣
ZHU Zhiyuan;YU Yu;WANG Chuang;TAN Xinrong(China Railway Eryuan Engineering Group Co.,Ltd.,Chengdu 610031,Sichuan,China)
出处
《工程技术研究》
2023年第22期12-14,共3页
Engineering and Technological Research
关键词
喀斯特隧道
高水压
衬砌安全分级
水害处治
karst tunnel
high water pressure
lining safety classification
water disaster treatment
