National Engineering Research Center of Coal Mine Water Hazard Controlling, China University of Mining and Technology-Beijing
China Coal Northwest Energy and Chemical Group Co. , Ltd.
Uxin Banner Mengda Mining Industry Co. , Ltd.

为了制定纳林河二号矿井工作面疏放水设计方案,保障矿井的安全回采,以3-1上201工作面顶板疏放水工程为例,通过绘制3-1上201工作面水文地质柱状概化图,分析了导水裂隙带发育高度及发育层位,确定了影响工作面安全回采的含水层为延安组三段砂岩含水层。根据物探异常区和“三图法”的富水性分区进行了顶板疏放水方案设计及动态优化,同时基于疏放水钻孔水量、水压变化,开展了疏放水效果评价,验证了基于“三图法”评价的疏放水方案设计的可靠性。

To define the roof drainage project for the working face at Nalinhe No. 2 Mine and ensure safe exaction, we took No. 201 working face of No. 3-1 upper coal seam as an example. We made a hydrogeological logging generalization research on No. 201 working face of No. 3-1 upper coal seam, to analyze the development height and layer of the water conducting fracture zone and to define the third section sandstone aquifer of Yan'an Formation as the influence aquifer for safety mining. According to the geophysical prospecting on anomaly areas and the water abundance zoning by “three maps method”, the three maps are comprised of roof aquifer water abundance zoning map, roof caving safety zoning map and roof water burst conditions zoning map. We designed and optimized the roof drainage scheme. By water drainage effect evaluation in terms of the variation of water volume and water pressure during borehole drainage, we verified the reliability of this drainage plan through “three maps method” evaluation.

国家自然科学基金项目(42027801);内蒙古自治区科技重大专项项目(2020ZD0020-4);大学生创新计划项目(202302010)

刘守强,靳立创,郭森林,等.纳林河二号矿井工作面顶板疏放水方案设计及优化[J].煤炭工程,2024,56(6):117-121.