多级水流系统耦合下深部岩溶分异研究——以川东隔挡式构造区中梁山背斜南段为例

新构造运动背景下,干、支流对地壳抬升反应速率的差异,导致具有不同排泄作用的河谷广泛组合,形成多级地下水流动系统,地下水作为岩溶含水系统发育的主要控制因素,多级水流系统的空间耦合影响岩溶发育分布规律。文章首先根据中梁山背斜南段岩溶槽谷横向沟谷的发育特征,将岩溶槽谷划分为渗流区、分流区、外流区;结合横向沟谷控排作用与地形指数,分析多级水流系统耦合的空间分异特征。其次通过隧道建设背景下地表水漏失、隧道涌水情况及隧道施工揭露岩溶现象验证在多级水流系统耦合效应下深部岩溶发育特征。结果表明:渗流区以区域水流系统为主,隧道涌水量巨大,水流通道连通性良好,地表水基本干涸,深部岩溶发育强烈;分流区除了近河谷地带...

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Bibliographic details
Volume: 45
Main Author: 钟玲敏;许模;吴明亮;杨艳娜;张强
Format: Journal Article
Language: Chinese
Place of publication: 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 2018
published in: 水文地质工程地质 Vol. 45; no. 1; pp. 45 - 51
Data of publication: 2018
ISSN: 1000-3665
Alternate Title: Development of deep karst under the coupling of multistage flow systems :A case of southern part of the Zhongliang Mountain anticline of the parallel barrier structure in Eastern Sichuan
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Bibliography: Under the background of neotectonics, the multistage underground flow system has developed due to the different responses of the main stream and tributaries to the crust uplift. The coupling of multistage underground flow systems thoroughly influences the development of karst. On the basis of the development characteristics of the transverse valleys, the study area is divided into the vadose area, shunted area and cxorheic area. The controlling-drain action and the topographic index are examined and the coupling features of the multistage underground flow system are analyzed. Based on the coupling of the multistage underground flow systems, the characteristics of deep karst development are verified with the loss of surface water, water bursting and karst development characteristics of tunnels. The vadose area is a regional water system base, in which deep karst developed well, resulting in the large water inflow of tunnels and the drying up of surface water. The shunted area, except the region near the transv
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