摘要
在复杂地质区,为了科学地确定不同隧道穿越方式下的集水面积,本文以地形、岩性、地质构造3因素为基础构建不同的地质结构,结合隧道空间展布的变化对集水面积进行研究。归纳、总结了3类主要汇水地形、4类地质结构和2类隧道穿越方式。综合上述因素,总结出埋藏-向斜式、埋藏-背斜式、埋藏-单斜式和裸露-单斜式4种集水面积变化模式,同时得出不同模式中集水面积的确定方法。以渝利铁路箭沱湾隧道为例进行分析研究,得出隧道涌水量计算中集水面积属于第Ⅱ类模式,隧道穿越埋藏式地层,判断隧道集水面积时容易忽略部分面积,应加以重视。
The different geological structures are established in terms of topography,lithology and geological structure;the catchment area is studied based on the variation of the spatial distribution of tunnel;and the kinds of main catchment topographies,geological structures and tunnel crossing modes are summarized.The varying modes of catchment area,including burial-syncline type,burial-anticline type,burial-monoclinic type and nudity-single inclined type,are introduced;and then the determination methods for catchment area in different modes are obtained.A case study is made on Jiantuowan Tunnel on Chongqing-Lichuan Railway.The catchment area of water inrush volume forecast of Jiantuowan Tunnel is regarded as burial-anticline type.As a result,the determination of the catchment area of Jiantuowan Tunnel should be paid more attentions to.
作者
贺小勇
漆继红
许模
张强
张世殊
王能峰
魏博文
HE Xiaoyong QI Jihong XU Mo ZHANG Qiang ZHANG Shishu WANG Nengfeng WEI Bowen(State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, Chengdu University of Technology, Chengdu 610059, Sichuan , China Chengdu Engineering Corporation Limited, Power China, Chengdu 610072, Sichuan, China Sichuan Province Geological Engineering Complex, Chongqing 401120, China)
出处
《隧道建设》
北大核心
2017年第1期56-61,共6页
Tunnel Construction
基金
地质灾害防治与地质环境保护国家重点实验室自主研究课题(SKLGP2015Z013)
关键词
隧道
涌水量预测
集水面积
复杂地质
地质结构
tunnel
water inrush volume forecast
catchment area
complex geology
geological structure