丁阔, 马凤山, 赵海军, 郭捷, 朱建军, 姜鸿君. 2016: 镜儿泉矿区地下开采引起地表变形规律的研究. 工程地质学报, 24(s1): 392-399. DOI: 10.13544/j.cnki.jeg.2016.s1.058
    引用本文: 丁阔, 马凤山, 赵海军, 郭捷, 朱建军, 姜鸿君. 2016: 镜儿泉矿区地下开采引起地表变形规律的研究. 工程地质学报, 24(s1): 392-399. DOI: 10.13544/j.cnki.jeg.2016.s1.058
    DING Kuo, MA Fengshan, ZHAO Haijun, GUO Jie, ZHU Jianjun, JIANG Hongjun. 2016: ANALYSIS ON THE SURFACE DEFORMATION IN JINGERQUAN MINE. JOURNAL OF ENGINEERING GEOLOGY, 24(s1): 392-399. DOI: 10.13544/j.cnki.jeg.2016.s1.058
    Citation: DING Kuo, MA Fengshan, ZHAO Haijun, GUO Jie, ZHU Jianjun, JIANG Hongjun. 2016: ANALYSIS ON THE SURFACE DEFORMATION IN JINGERQUAN MINE. JOURNAL OF ENGINEERING GEOLOGY, 24(s1): 392-399. DOI: 10.13544/j.cnki.jeg.2016.s1.058

    镜儿泉矿区地下开采引起地表变形规律的研究

    ANALYSIS ON THE SURFACE DEFORMATION IN JINGERQUAN MINE

    • 摘要: 研究并控制金属矿山开采所引起的地表沉降意义重大,但由于受到矿区地质条件、地应力场、开采方式等多重因素的影响,使得研究具有很大的难度。新疆哈密市镜儿泉矿区前期采用浅孔留矿法进行开采,对上覆岩体造成了巨大扰动,后期采用充填法进行开采。针对该矿区较差的地质环境选用随机介质理论进行分析,根据矿体结构建立数学模型,以地表GPS监测数据为基础,通过反分析的方式确定地表移动参数,最终得到地下开采引起的地表沉降曲线。在此基础上,根据开采所引起的地表沉降趋势,分析了开采过程中不同阶段地表变形机制以及移动规律。

       

      Abstract: Accurate predictionon surface deformation in mining area provides reliable guidance for safe and effective mining. Due to the complexity of geological conditions, in-situ stress and mining methods, surface deformation prediction generally turned out to be difficult. Taking Jingerquan mine in Hami City, Xinjiang Province as an instance, it adopted the shallow-hole shrinkage mining method at the previous stage and severely disturbed the overlying rock mass. Therefore, in the later stage, it employs the filling method instead. Considering the unfavorable geological conditions of the mine, we applied the random medium theory in analyzing the surface deformation. And based on the particular orebody structure, we established a reasonable mathematical model. According to the monitoring results, the surface deformation parameters were determined using back analysis method, and thereby, the surface settlement curve at the final mining stage was obtained. Besides, combining the surface deformation tendency, the mechanism and feature of deformation in different stages were investigated. It is suggested that the research findings in Jingerquan mine could provide some reference for similar metal mines.

       

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