| 疏降地下水引起地面塌陷浅析--以淮南煤矿区为例 |
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| 引用本文： | 许光泉,沈慧珍.疏降地下水引起地面塌陷浅析--以淮南煤矿区为例[J].中国地质灾害与防治学报,2004,15(4):64-68. |
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| 作者姓名： | 许光泉 沈慧珍 |
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| 作者单位： | 安徽理工大学,资源与环境工程系,安徽,淮南,232001 |
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| 基金项目： | 安徽省高等学校中青年骨干教师人才基金，安徽省教育厅基金资助项目(2001kj214) |
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| 摘 要： | 以淮南西部矿区为例，介绍了该地区自20世纪60年代开采煤矿以来，由于疏降地下水，引起的地面塌陷。为了研究灰岩水动力场规律，先后在该区进行多时段、多水平放水试验。研究表明，覆盖粘土层、岩溶及人工疏降地下水，是该地区岩溶塌陷形成的基本条件。通过对粘土盖层性质、疏降地下水岩溶塌陷演化过程及塌陷机理与对应阶段过程综合分析，结合区域地质条件，掌握了塌陷点的分布规律。对目前西部地区塌陷“复活”、整治及未来城市规划，提出了建设性建议。
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| 关 键 词： | 疏降地下水 岩溶塌陷 粘土 盖层 形成机理 淮南煤矿 |
| 文章编号： | 1003-8035(2004)04-0064-05 |
| 修稿时间： | 2003年7月14日 |
Analysis on the land collapse induced by pumping groundwater--Huainan Coal Mine as an example |
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| XU Guang-quan,SHEN Hui-zhen.Analysis on the land collapse induced by pumping groundwater--Huainan Coal Mine as an example[J].The Chinese Journal of Geological Hazard and Control,2004,15(4):64-68. |
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| Authors: | XU Guang-quan SHEN Hui-zhen |
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| Abstract: | Taking western mining area of Huainan for an example,this paper discusses the land collapse of this area because of pumping groundwater since the coal mine was exploited in 1960s.In order to make research on the characteristics of karst aquifer hydraulics,the pumping test under the mine was done in different stage at different level.The research shows that the induced factors of karst collapse are the clay cap beds,the karst cave and the pumping of the groundwater in the area.Based on the integrative analyses of the characteristics of the clay beds,the evolutive process of karst collapse caused by the pumping groundwater,the mechanism of the collapse and the regional geological condition,the distributive rule of the karst collapse is well known.Finally,some constructive suggestions are given about the prevention of the collapse 'revival'of the western area and the town scheme. |
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| Keywords: | pumping groundwater karst collapse clay overlay beds forming mechanism Huainan Coal Mine |
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