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主办单位:煤炭科学研究总院有限公司、中国煤炭学会学术期刊工作委员会
西部干旱矿区采煤引起潜水损失量的定量评价方法
  • Title

    Method of quantitative evaluation on amount of groundwater loss from uncon- fined aquifer caused by mining disturbance in the arid area of Western China

  • 作者

    赵春虎虎维岳靳德武

  • Author

    ZHAO Chun-hu1,2 ,HU Wei-yue1,2 ,JIN De-wu1,2

  • 单位

    中国煤炭科工集团西安研究院有限公司陕西省煤矿水害防治技术重点实验室

  • Organization
    1. Xi’an Research Institute of China Coal Technology & Engineering Group Corp,Xi’an  710054,China;2. Shaanxi Key Laboratory of Prevention and Con-trol Technology for Coal Mine Water Hazard,Xi’an  710077,China
  • 摘要

    针对西部干旱矿区煤炭资源开发对地下水扰动的相关研究定量化程度不高问题,通过地下水动力学分析方法,得出采掘扰动形成的覆岩垮落带、裂隙带、弯曲带及地面沉陷区的空间尺度是控制地下水损失的主要因素,其扰动面积越大、冒裂带高度越高、弯曲带保护层渗透能力越强则地下水渗漏量越大;提出了覆岩导水裂缝边界化,弯曲带渗透能力分区,地面沉陷区重新剖分的采掘扰动影响下地下水系统数值评价模型的构建方法;并通过构建案例矿井的评价模型,计算得出神东矿区补连塔煤矿由于煤矿开采引起松散层潜水损失量为1.90×10~4m~3/d。

  • Abstract
    The quantitative degree of coal resources exploitation on water environment disturbance is insufficient in the coal mining area of western China. In this paper,it concludes that the spatial scale is the main factor to control the loss of groundwater by the method of groundwater dynamics analysis,which includes the caving zone,the fracture zone,the bending zone and the ground subsidence area. The method of numerical evaluation model of groundwater system is pro- posed,which is based on the boundary of the hydraulic conductivity of overlying rock,the partition of bending zone, and the re-subdivision of surface subsidence area. According to the quantitative evaluation of groundwater dynamic sys- tem disturbance in the Bulianta coal mine,the simulation results show that the loss of groundwater resources is about 1. 90×104 m3 / d due to the mining disturbance.
  • 关键词

    地下水松散含水层定量评价数值模拟导水裂缝带

  • KeyWords

    groundwater;loose aquifer;quantitative evaluation;numerical simulation;fractured zone

  • 基金项目(Foundation)
    国家自然科学基金资助项目(41402220);国家“十三五”重点研发计划资助项目(2016YFC0501102);中煤科工西安研究院自筹基金资助项目(2014MS009);
  • DOI
  • Citation
    Zhao Chunhu,Hu Weiyue,Jin Dewu. Method of quantitative evaluation on amount of groundwater loss from unconfined aquifer caused by mining disturbance in the arid area of Western China[J]. Journal of China Coal Society,2017,42(1):169 -174.
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