基于导水裂隙带高度的地下水库适应性评价

发布时间：2018-05-31 07:13

本文选题：地下水库 + 适用性　；参考：《煤炭学报》2017年08期

【摘要】：利用煤矿井下采空区进行矿井水资源储存和循环利用的地下水库技术为西部缺水矿区的绿色开采提供了新的途径,但其推广应用仍需符合一定的适用条件。综合采用现场实测与理论分析,结合神东矿区煤矿地下水库工程实践,开展了基于导水裂隙带高度的地下水库适应性评价方法研究。结果表明:地下水库储水的高效循环使用是保证该技术成功应用的关键,必须满足"水源"、"库容"和"通道"三大条件。采动覆岩导水裂隙作为地下水库水源补给的重要通道,是影响地下水库适应性的核心因素。利用"基于关键层位置的导水裂隙带高度预计方法",判别具体开采条件导水裂隙带发育高度,当导水裂隙沟通区域补给水源(含水层)时,地下水库具备适应性;否则,区域水源水体一般难以汇聚至井下采空区,从而地下水库中可供循环利用的水资源量将难以保证,地下水库保水方法一般不适用。研究结果得到了神东矿区地下水库工程的验证,并指导了李家壕煤矿地下水库适应性评价和地下水库建设选址。
[Abstract]:The underground reservoir technology of storing and recycling mine water resources in the underground goaf provides a new way for green mining in the west water shortage mining area, but its popularization and application still need to meet certain applicable conditions. Based on the field measurement and theoretical analysis, combined with the engineering practice of underground reservoir in Shendong mining area, the adaptability evaluation method of underground reservoir based on the height of water diversion fracture zone is studied. The results show that the efficient recycling of underground reservoir water storage is the key to the successful application of the technology, and must meet the three conditions of "water source", "reservoir capacity" and "passage". As an important channel of water supply for underground reservoir, mining overburden water diversion fissure is the core factor that affects the adaptability of underground reservoir. By using the method of predicting the height of the water-conducting fissure zone based on the location of the critical layer, the development height of the water-conducting fissure zone under specific mining conditions is determined. When the water-conducting fissure communicates with the regional recharge source (aquifer), the underground reservoir has adaptability; otherwise, It is difficult for regional water source water to converge to underground goaf, so it is difficult to guarantee the quantity of water resources which can be recycled in underground reservoir, and the method of retaining water in underground reservoir is not suitable. The research results are verified by the underground reservoir project in Shendong mining area, and the adaptability evaluation of underground reservoir in Lijiagou coal mine and the site selection of underground reservoir construction are guided.
【作者单位】：煤炭开采水资源保护与利用国家重点实验室;神华集团有限责任公司科技发展部;中国矿业大学物联网(感知矿山)研究中心;神华包头能源有限责任公司李家壕煤矿;
【基金】：国家重点研发计划资助项目(2016YFC0501100) 国家自然科学基金资助项目(51604259) 煤炭开采水资源保护与利用国家重点实验室开放基金资助项目(SHJT-16-30.2)
【分类号】：TV623

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