JIA Chuanwei, LIU Zengping, TIAN Maohu. Research and practice of mining technology for sealed pressure hydrologic borehole without unsealing[J]. COAL GEOLOGY & EXPLORATION, 2019, 47(S1): 86-91. DOI: 10.3969/j.issn.1001-1986.2019.S1.017
Citation: JIA Chuanwei, LIU Zengping, TIAN Maohu. Research and practice of mining technology for sealed pressure hydrologic borehole without unsealing[J]. COAL GEOLOGY & EXPLORATION, 2019, 47(S1): 86-91. DOI: 10.3969/j.issn.1001-1986.2019.S1.017

Research and practice of mining technology for sealed pressure hydrologic borehole without unsealing

More Information
  • Received Date: August 01, 2019
  • Published Date: September 19, 2019
  • The long-term hydrological observation hole of the Ordovician limestone aquifer in Shandong Xinhe Mining Co., Ltd has a wide range of coal pillars, affecting the exploitation of adjacent coal resources. For this reason, referring to the movement law of overlying strata on the surface of this mine and its adjacent Tangkou coal mine, the damage degree of borehole was analyzed from the three mechanical angles, that is axial tension and compression, radial extrusion and radial shear. Combined with the changes of hydrogeological conditions such as water enrichment of main aquifers around the boreholes, the safety and feasibility of the mining without opening the borehole were analyzed and evaluated. The research results show that the boreholes without opening will not lead to borehole water accident, nor change the hydrogeological conditions of coal mining, and finally the safe mining is achieved.
  • [1]
    张滕滕. 煤炭开采对地质结构及地质安全的影响分析[J]. 工程技术研究,2019,4(4):217-218.

    ZHANG Tengteng. Analysis of the influence of coal mining on geological structure and geological safety[J]. Engineering and Technological Research,2019,4(4):217-218.
    [2]
    刘德民,尹尚先,连会青. 封闭不良钻孔导水危险性定量评价研究[J]. 煤炭工程,2014,46(4):119-121.

    LIU Demin,YIN Shangxian,LIAN Huiqing. Quantitative evaluation on risk of water inrush from poor sealing borehole[J]. Coal Engineering,2014,46(4):119-121.
    [3]
    任金武. 煤矿封闭不良钻孔评价与综合处理技术[J]. 能源与节能,2014(7):140-142.

    REN Jinwu. Evaluation and comprehensive treatment technology of poor sealing borehole in coal mines[J]. Energy and Energy Conservation,2014(7):140-142.
    [4]
    钱云云. 采空区上覆岩层移动特征与地表变形预测研究[J]. 内蒙古煤炭经济,2019(1):56. QIAN Yunyun. Study on Overburden strata movement characteristics and surface deformation prediction in goaf[J]. Inner Mongolia Coal Economy,2019(1):56+110.
    [5]
    崔希民,邓喀中. 煤矿开采沉陷预计理论与方法研究评述[J]. 煤炭科学技术,2017,45(1):160-169.

    CUI Ximin,DENG Kazhong. Research review of predicting theory and method for coal mining subsidence[J]. Coal Science and Technology,2017,45(1):160-169.
    [6]
    左建平,孙运江,文金浩,等. 岩层移动理论与力学模型及其展望[J]. 煤炭科学技术,2018,46(1):1-11.

    ZUO Jianping,SUN Yunjiang,WEN Jinhao,et al. Theoretical and mechanical models of rock strata movement and their prospects[J]. Coal Science and Technology,2018,46(1):1-11.
    [7]
    孙海涛,胡千庭,郑颖人,等. 采场上覆岩层离层位移确定方法及其应用[J]. 煤炭科学技术,2011,39(1):16-19.

    SUN Haitao,HU Qianting,ZHENG Yingren,et al. Determination method of separated layer displacement in overburden strata above coal mining face and application[J]. Coal Science and Technology,2011,39(1):16-19.
    [8]
    孙海涛,郑颖人,郭盛强,等. 地面井层面拉剪破坏模型及极限分析判识方法[J]. 中国矿业大学学报,2013,42(1):31-38.

    SUN Haitao,ZHENG Yingren,GUO Shengqiang,et al. A surface borehole interface model and the limit analysis estimation method[J]. Journal of China University of Mining & Technology,2013,42(1):31-38.
    [9]
    孙海涛. 采动影响下地面钻井的变形破坏机理研究[D]. 重庆:重庆大学,2008.
    [10]
    孙海涛,林府进,张军. 地面钻井剪切变形破坏模型及其空间规律分析[J]. 采矿与安全工程学报,2011,28(1):72-76.

    SUN Haitao,LIN Fujin,ZHANG Jun. Model surface borehole shear deformation fracture and its space rule analysis[J]. Journal of Mining & Safety Engineering,2011,28(1):72-76.
    [11]
    孙海涛,郑颖人,胡千庭,等. 地面钻井套管耦合变形作用机理[J]. 煤炭学报,2011,36(5):823-829.

    SUN Haitao,ZHENG Yingren,HU Qianting,et al. Surface borehole casing coupling deformation mechanism[J]. Journal of China Coal Society,2011,36(5):823-829.
    [12]
    李永军,孙浩. 基于FLAC3D的封闭不良钻孔数值模拟研究[J]. 煤炭技术,2016,35(8):143-145.

    LI Yongjun,SUN Hao. Numerical simulation of poor sealing borehole based on FLAC3D[J]. Coal Technology,2016,35(8):143-145.
    [13]
    石占山,梁冰,王岩,等. 加载与卸载过程瓦斯抽采钻孔变形特征[J]. 煤炭学报,2017,42(6):1458-1465.

    SHI Zhanshan,LIANG Bing,WANG Yan,et al. Deformation characteristics of gas drainage borehole in loading and unloading[J]. Journal of China Coal Society,2017,42(6):1458-1465.
    [14]
    国家煤矿安全监察局. 煤矿防治水细则[M]. 北京:煤炭工业出版社,2018.

Catalog

    Article Metrics

    Article views (119) PDF downloads (9) Cited by()
    Related

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return