| 重庆鱼田堡煤矿采动条件下顶板岩溶地下水运移规律探讨 |
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| 引用本文： | 陈正华,曾 亮,刘 宇.重庆鱼田堡煤矿采动条件下顶板岩溶地下水运移规律探讨[J].中国岩溶,2017,36(1):67-74. |
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| 作者姓名： | 陈正华 曾 亮 刘 宇 |
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| 作者单位： | 1.重庆地质矿产研究院/重庆市地质灾害自动化监测工程技术研究中心/重庆地质矿产研究院/外生成矿与矿山环境重庆市重点实验室 |
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| 基金项目： | 重庆市国土资源和房屋管理局2014年科技计划项目资助（CAGT-KJ-2014019，CQGT-KJ-2014046)；国土资源部公益性行业专项资助（201411083-6）；国土资源部野外科技观测研究基地矿山地质环境-重庆南桐野外基地 |
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| 摘 要： | 重庆市位于我国西南地区，五大国有煤矿多位于岩溶发育的丘陵山区，地质条件复杂，为深入探讨重庆丘陵山区采煤条件下地下水的运移规律，在鱼田堡煤矿煤层顶板长兴段灰岩地表投放示踪剂，井下不同巷道水平以及不同采区布置多个接收点实施连通试验。实验结果表明:接收点水样在雨后呈现出Cl-含量升高、Cl-含量降低和Cl-含量不变3种变化趋势，综合连通试验结果及水化学分析得出顶板长兴段灰岩地下水在侵蚀基准面以下向开采工作面排泄，而开采结束覆岩相对稳定的采区基本无长兴段灰岩地下水排泄。研究不同采区的接收点示踪剂变化特征对深入了解地下水的运移规律，以及类似条件矿区布置防治水工作具有参考价值。
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| 关 键 词： | 岩溶 煤矿 连通试验 采动裂隙 离层 |
Discussion on karst groundwater migration law under mining conditions in the Yutianbao coalmine of Chongqing |
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| CHEN Zhenghu,ZENG Liang and LIU Yu.Discussion on karst groundwater migration law under mining conditions in the Yutianbao coalmine of Chongqing[J].Carsologica Sinica,2017,36(1):67-74. |
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| Authors: | CHEN Zhenghu ZENG Liang and LIU Yu |
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| Institution: | 1.Chongqing Institute of Geology and Mineral Resources/Chongqing Engineering Research Center of Automatic Monitoring for Geological Hazards/Chongqing Institute of Geology and Mineral Resources/Chongqing Key Laboratory of Exogenic Mineralization and Mine Environment2.Changjiang Geotechnical Engineering Corparation |
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| Abstract: | Chongqing is located in southwestern China. It hosts five major state owned coalmines in karst hilly areas, where geological conditions are complex. For further research on groundwater migration law under mining conditions in these areas, we put the tracer on the limestone surface of the Changxing segment in the coal seam roof to conduct connection tests of receiving points which are deployed on different levels of underground roadways and different mining areas. Results show that chloride content at receiving points after rainfall have three changing trends, which are increase, decrease and unchanging. The Changxing segment limestone groundwater migrates to the mining section below erosion datum and basically has no discharge in the relatively stable overlying strata of the mining area. The study on tracer change characteristics in different mining areas provides information for understanding of groundwater migration laws and water prevention and control in mining area. |
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| Keywords: | karst coal mine connection test mining crack absciss layer |
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