仵拨云, 范立民, 郑苗苗, 邵小平, 彭捷, 蒋泽泉, 郭亮亮. 2018: 窄条带式保水采煤技术及应用效果. 工程地质学报, 26(s1): 423-429. DOI: 10.13544/j.cnki.jeg.2018014
    引用本文: 仵拨云, 范立民, 郑苗苗, 邵小平, 彭捷, 蒋泽泉, 郭亮亮. 2018: 窄条带式保水采煤技术及应用效果. 工程地质学报, 26(s1): 423-429. DOI: 10.13544/j.cnki.jeg.2018014
    WU Boyun, FAN Limin, ZHENG Miaomiao, SHAO Xiaoping, PENG Jie, JIANG Zequan, GUO Liangliang. 2018: THE TECHNOLOGY AND APPLICATION EFFECT OF WATER-PRESERVED MINING WITH NARROW STRIP. JOURNAL OF ENGINEERING GEOLOGY, 26(s1): 423-429. DOI: 10.13544/j.cnki.jeg.2018014
    Citation: WU Boyun, FAN Limin, ZHENG Miaomiao, SHAO Xiaoping, PENG Jie, JIANG Zequan, GUO Liangliang. 2018: THE TECHNOLOGY AND APPLICATION EFFECT OF WATER-PRESERVED MINING WITH NARROW STRIP. JOURNAL OF ENGINEERING GEOLOGY, 26(s1): 423-429. DOI: 10.13544/j.cnki.jeg.2018014

    窄条带式保水采煤技术及应用效果

    THE TECHNOLOGY AND APPLICATION EFFECT OF WATER-PRESERVED MINING WITH NARROW STRIP

    • 摘要: 为了评价窄条带保水采煤技术在陕北煤炭开采区的应用效果,对榆神矿区的榆卜界煤矿和薛庙滩煤矿地质结构进行分析,采用数值模拟和物理模拟确定了采12留8条带开采方法,在榆卜界煤矿建立了煤柱应力、位移监测,以及条带工作面松动圈监测系统,在榆卜界煤矿和薛庙滩煤矿分别布设了水位观测孔。通过煤炭开采前后导水裂隙带发育高度与隔水岩组厚度比较分析,运用采空区潜水水位埋深探测等方法,系统了解煤炭开采前、开采后潜水位埋深变化特征。研究表明,采煤工作面导水裂隙带发育高度未穿过隔水层,煤柱较稳定,潜水水位埋深最大下降幅度为1.25m,地表植被良好,说明窄条带采煤方法有效地保证了岩层和煤柱的稳定性,维持了生态水位的合理埋深,实现了保水采煤。

       

      Abstract: In order to evaluate the application effect of water-preserved technology with narrow strip in the coal mining area of northern Shaanxi, through the analysis of the geological structure in Yubojie coal mine and Xuemiaotan coal mine of Yu-Shen mine area. The strip mining method of mining 12 remining 8 was determined by numerical simulation and physical simulation. The monitoring system of coal pillar stress, displacement monitoring and loose ring of strip mining face were established in Yubojie coal mine. The observation hole for water table have been set up respectively in Yubojie coal mine and Xuemiaotan coal mine. To comparative analysis the development height of diversion fissure zone and the thickness of aquiclude with before and after mining, using the method of goaf submerged depth detection in Yubojie coal mine and Xuemiaotan coal mine of Yu-Shen mine area, and then systematic understanding of the variation characteristics of diving position before and after mining. The research shows that the development height of the guide water fracture zone in the coal working face is not through the aquifer. The coal pillar is relatively stable. The maximum depth of diving was 1.25m. The vegetation on the surface is good. It shows that the method of narrow strip mining effectively guarantees the stability of rock stratum and coal pillar, maintaining the reasonable depth of ecological water level, and achieving water-preserved mining.

       

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