钻孔导致突水溃沙事故机理及防治对策研究
详细信息 本馆镜像全文    |  推荐本文 | | 获取馆网全文
摘要
以隆德煤矿为例,基于颗粒流和液体流2种流体力学理论,提出了预测突水溃沙流量的溃沙漏斗和突水口2种模型,探讨了地质钻孔导致隆德煤矿突水溃沙事故的形成机理和防治对策。主要研究结果包括:1)相比于溃沙漏斗模型,突水口模型预测的突水溃沙流量与现场推测数据更为接近,可以较好地揭示隆德煤矿地质钻孔导致的突水溃沙现象;其中,决定突水溃沙事故流量大小的2个关键因素为含水沙层的厚度和钻孔直径;2)建立了地表动态沉陷模型,地表溃沙漏斗中心点沉降值及影响半径均随时间的增长而增加,但加速度逐渐减小;3)提出了"采掘工程设计前,排查钻孔并封堵"的预防对策,以及"管道流变裂隙流,裂隙流变空隙流,最后注浆封堵"的治理对策。
Taking Longde coal mine as example, based on particle flow and liquid flow theories, sand bursting funnel model and water bursting nozzle model were introduced to study the flow calculation model, the mechanism of water and sands bursting and control measures in Longde coal mine were proposed. The results show that compared with the sand bursting funnel model, the flow predicted by water bursting nozzle model is more consistent with the speculate result in Longde coal mine, which means that the model can better reveal the formation mechanism of water and sands bursting. According to the water bursting nozzle model, the aquifer thickness and borehole diameter are the two dominant factors which influence the bursting flow. Based on the constructed dynamic surface subsidence model, the central sedimentation value of surface sand inrush funnel, and the influence radius increase with time, but the acceleration decreases gradually. Prevention method that geological borehole should be investigated and plugged for prevention before the mining design has been developed, while a control measure that gradually changing the pipeline flow into fracture flow and pore flow, and finally implementing grouting and plugging has also been proposed.
引文
[1]缪协兴,王安,孙亚军,等.干旱半干旱矿区水资源保护性采煤基础与应用研究[J].岩石力学与工程学报,2009,28(2):217-227.MIAO Xiexing,WANG An,SUN Yajun,et al.Research on basic theory of mining with water resources protection and its application to arid and semi-arid mining areas[J].Chinese Journal of Rock Mechanics and Engineering,2009,28(2):217-227.
    [2]缪协兴,王长申,白海波.神东矿区煤矿水害类型及水文地质特征分析[J].采矿与安全工程学报,2010,27(3):285-290,298.MIAO Xiexing,WANG Changshen,BAI Haibo.Hydrogeologic characteristics of mine water hazards in Shendong mining area[J].Journal of Mining&Safety Engineering,2010,27(3):285-290.
    [3]白海波,缪协兴.水资源保护性采煤的研究进展与面临的问题[J].采矿安全与工程学报,2009,26(3):253-262.BAI Haibo,MIAO Xiexing.Research progress and major problems of water preserved coal mining[J].Journal of Mining&Safety Engineering,2009,26(3):253-262.
    [4]梁燕,谭周地,李广杰.弱胶结砂层突水、涌砂模拟试验研究[J].西安公路交通大学学报,1996,16(1):19-22.LIANG Yan,TAN Zhoudi,LI Guangjie.Simulation test research on water and soil outbursts of weak binding soil[J].Journal of Xi’an Highway University,1996,16(1):19-22.
    [5]汤爱平,董莹,谭周地,等.振动作用下矿井突水涌砂机理的研究[J].地震工程与工程振动,1999,19(2):132-135.TANG Aiping,DONG Ying,TAN Zhoudi,et al.Mechanism of sandy-silt seepage deformation in mine under vibration[J].Earthquake Engineering and Engineering Vibration,1999,19(2):132-135.
    [6]张敏江,张丽萍,姜秀萍,等.弱胶结砂层突涌机理及预测研究[J].金属矿山,2002(10):48-50.ZHANG Minjiang,ZHANG Liping,JIANG Xiuping,et al.Study on the inrushing mechanism of weak cemented quicksand layer and its forecasting[J].Metal Mine,2002(10):48-50.
    [7]张杰,侯忠杰,马砺.浅埋煤层老顶岩块回转过程中的溃沙分析[J].西安科技大学学报,2006,26(2):158-160.ZHANG Jie,HOU Zhongjie,MA Li.Sand inrush in roof rock’s rotating in shallow seam mining[J].Journal of Xi’an University of Science and Technology,2006,26(2):158-160.
    [8]隋旺华,董青红.近松散层开采孔隙水压力变化及其对水砂突涌的前兆意义[J].岩石力学与工程学报,2008,27(9):1908-1916.SUI Wanghua,DONG Qinghong.Variation of pore water pressure and its precursor significance for quicksand disasters due to mining near unconsolidated formations[J].Chinese Journal of Rock Mechanics and Engineering,2008,27(9):1908-1916.
    [9]隋旺华,蔡光桃,董青红.近松散层采煤覆岩采动裂缝水砂突涌临界水力坡度试验[J].岩石力学与工程学报,2007,26(10):2084-2091.SUI Wanghua,CAI Guangtao,DONG Qinghong.Experimental research on critical percolation gradient of quicksand across overburden fissures due to coal mining near unconsolidated soil layers[J].Chinese Journal of Rock Mechanics and Engineering,2007,26(10):2084-2091.
    [10]杨伟峰.薄基岩采动破断及其诱发水砂混合流运移特征[D].徐州:中国矿业大学,2009.
    [11]许延春.含黏砂土流动性试验[J].煤炭学报,2008,33(5):496-499.XU Yanchun.Fluidity test on sand blended with clay[J].Journal of China Coal Society,2008,33(5):496-499.
    [12]张玉军,康永华,刘秀娥.松散砂岩含水层下煤矿开采溃砂预测[J].煤炭学报,2006,31(4):429-432.ZHANG Yujun,KANG Yonghua,LIU Xiue.Prediction on inrush of sand of mining under loosening sandstone aquifer[J].Journal of China Coal Society,2006,31(4):429-432.
    [13]隋旺华,董青红,蔡光桃,等.采掘溃砂机理与预防[M].北京:地质出版社,2008:13-17.
    [14]伍永平,卢明师.浅埋采场溃沙发生条件分析[J].矿山压力与顶板管理,2004,20(3):57-58.WU Yongping,LU Mingshi.Analysis of sand inrush generation condition in coal mining of shallow coal seam[J].Ground Pressure and Strata Control,2004,20(3):57-58.
    [15]潘树仁,丁致中.封闭不良钻孔突水量计算与处理方案[J].江苏煤炭,1999(3):9-12.PAN Shuren,DING Zhizhong.Treatment scheme and water-inrush quantity calculation of unfavorable closed borehole[J].Jiangsu Coal,1999(3):9-12.
    [16]葛江林.封闭不良钻孔的井下封堵技术与实践[J].中州煤炭,2007(1):54-55.GE Jianglin.Technology and practice of underground well block with unfavorably closed borehole[J].Zhongzhou Coal,2007(1):54-55.
    [17]徐雷.地面封闭不良钻孔突水的井下高效封堵技术研究[J].知识经济,2012(20):116-117.XU Lei.The efficient underground plugging technology for the water inrush through poor sealing boreholes[J].Knowledge Economy,2012(20):116-117.
    [18]段世文.厚风积沙层条件下冻结法施工立井筒之探讨和实现[J].科技创业家,2012(14):42-46.DUAN Shiwen.Study and implementation of vertical shaft construction by freezing method under the condition of the thick aeolian sand layer[J].Technological Pioneers,2012(14):42-46.
    [19]陆坤权,刘寄星.颗粒物质(上)[J].物理,2004,33(9):625-635.LU Kunquan,LIU Jixing.Static and dynamic properties of granular matter(Ⅰ)[J].Physics,2004,33(9):625-635.
    [20]鲍德松,张训生.颗粒物质与颗粒流[J].浙江大学学报,2003,30(5):514-517.BAO Desong,ZHANG Xunsheng.Granular matter and granular flow[J].Journal of Zhejiang University,2003,30(5):514-517.
    [21]BEVERLOO W A,LENIGER H A,VAN DE VELDE J.The flow of granular solids through orifices[J].Chem Eng Sci,1961,15(3/4):260-269.
    [22]LE PENNEC T,AMMI M,MESSAGER J C,et al.Effect of gravity on mass flow rate in an hour glass[J].Powder Technology,1995,85(3):279-281.
    [23]MANKOC C,JANDA A,AREVALO R,et al.The flow rate of granular materials through an orifice[J].Granular Matter,2007,9(6):407-414.
    [24]程亮.颗粒材料流经漏斗的动力学特征研究[D].长沙:中南大学,2012.
    [25]TSUBANOV A G,ANTONISHIN N V.Gravitational flow of granular materials[J].Journal of Engineering Physics and Thermophysics,1968,15(5):1083-1086.
    [26]卢明师.浅埋采场涌水溃沙控制机理研究[D].西安:西安科技大学,2004.
    [27]吴望一.流体力学[M].北京:北京大学出版社,2008:45-48.
    [28]刘颖,朱莉,仝筠.论抗震规范的砂土液化判别方法[J].岩土力学,1979(2):1-12.LIU Ying,ZHU Li,TONG Jun.On the prediction method of sand liquefaction in the Chinese aseimic building code[J].Rock and Soil Mechanics,1979(2):1-12.
    [29]李志勇,曹源文,梁乃兴,等.风积沙的压实机理[J].中国公路学报,2006,19(5):6-11.LI Zhiyong,CAO Yuanwen,LIANG Naixing,et al.Compaction mechanism of aeolian sand[J].China Journal of Highway and Transport,2006,19(5):6-11.
    [30]李铁,张建伟,吕毓国,等.采掘活动与矿震关系[J].煤炭学报,2011,36(12):2127-2132.LI Tie,ZHANG Jianwei,LU Yuguo,et al.Relationship between mining and mining-induced seismicity[J].Journal of China Coal Society,2011,36(12):2127-2132.
    [31]王晓华.辽西风积砂土振动液化的试验研究[D].阜新:辽宁工程技术大学,2009.

版权所有:© 2023 中国地质图书馆 中国地质调查局地学文献中心