岩溶区深埋隧洞水文地质概念模型及突水模式

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英文篇名：Hydrogeological Conceptual Model and Water Inflow Pattern Analysis of Deep Diversion Tunnel in Karst Area 作者：汪云 ; 杨海博 ; 郑梦琪 ; 韩智昕 ; 赵耀 ; 袁金浩 英文作者：WANG Yun;YANG Haibo;ZHENG Mengqi;HAN Zhixin;ZHAO Yao;Yuan Jinhao;Shandong Zhengyuan Geological Exploration Institute,China Metallurgical Geology Bureau; 关键词：岩溶 ; 水文地质 ; 概念模型 ; 隧洞突涌水 英文关键词：karst;;hydrogeology;;conceptual model;;water inflow in tunnel 中文刊名：人民黄河 英文刊名：Yellow River 机构：中国冶金地质总局山东正元地质勘查院; 出版日期：2019-07-10 出版单位：人民黄河 年：2019 期：07 基金：山东省地下水水源地调查评价项目[鲁地环(2016)04号] 语种：中文; 页：130-134 页数：5 CN：41-1128/TV ISSN：1000-1379 分类号：TV221.2

摘要

针对岩溶地区复杂的水文地质条件,以建立岩溶区域水文地质概念模型和典型隧洞突涌水概念模型为目标,通过分析贵州夹岩深埋长引水隧洞工程区的岩溶水文地质资料,结合地层结构、岩性组合、地貌特征等因素,研究该工程区内岩溶地下水的补、径、排关系。在此基础上,依托实地调查的典型涌水支洞,分析研究了不同情形下涌水量对降雨事件的响应,总结得出典型岩溶隧洞突涌水模式分为断裂构造与暗河联合控水模式、岩溶管道控水模式和层理面控水模式,并提出了相应的预防及处理措施。对典型1#支洞不良地质段采取掌子面灌浆封堵措施,有效阻止了重大突涌水事件的再次发生。
        Aiming at the complex hydrogeological conditions in the Karst Area and establishing the conceptual model of hydrogeology and the conceptual model of typical tunnel water inrush, the relationship between the recharge, diameter and drainage of Karst groundwater in the project area was studied by analyzing the Karst hydrogeological data in the engineering area of Jiayan deep-buried long diversion tunnel in Guizhou and combining the factors of stratum structure, lithologic association and geomorphological characteristics. On this basis, the response of water inflow to rainfall events under different conditions was analyzed based on the typical water inflow branch tunnels investigated on the spot. It was concluded that the water inflow modes of typical Karst tunnels could be divided into the joint water control mode of fault structure and underground river, the water control mode of Karst pipeline and the water control mode of bedding surface and the corresponding prevention and treatment measures were put forward. The working area grouting blockade measures were adopted to block the bad geological section of the typical No. 1 branch tunnel, which effectively prevented the recurrence of major water inrush events.

引文

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