引流渗透控制注浆技术及涌水治理应用研究
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摘要
为解决煤矿浅层松散破碎高压涌水围岩的注浆堵水技术难题,提出了引流渗透控制注浆技术,通过试验分别对C-GT浆液性能,注浆压力对围岩的破坏性,注浆管内浆液的流通性,涌水与治理区域的连通性和引流孔关闭后的影响等进行研究。结果表明:在深部引流条件下,采用下列参数封堵浅层松散破碎围岩内高压涌水是安全有效的,常温下选用P.O42.5R水泥,水泥浆液密度1.50 g/cm3(水灰比1∶1)左右,GT浆液密度为1.20~1.50 g/cm3,体积比控制在1∶1~3∶1,在井下高温环境中要适量添加缓凝剂;C-GT浆液初凝时间应比示踪剂连通时间长5 s左右,注浆压力控制在2.5MPa以下。当溢流孔总面积与注浆管内径面积相近时浆液流通性最好,应为注浆时控制的最高速率。
In order to solve the grouting and water sealing technical problem of the loose and broken surrounding rock with the high pressurized water inflow in the shallow strata in a coal mine,a water drainage,permeability controlled grouting technology was provided. With the tests,a study was conducted on the C- GT grout performances,the grouting pressure affected to the failure of the surrounding rock,the grout flowing within the grout pipeline,the connection between the water inflow and control area,the influence when the water drainage borehole closed and others. The study results showed that under the condition of the deep water drainage,the following parameters applied to seal the high pressurized water inflow within the loose and broken surrounding rock of the shallow strata were safe and effective.Under the condition of the ambient temperature,the P. O42. 5R cement would be applied,the density of the cement grout would be about1. 50 g / cm3( a water and cement ratio would be 1∶ 1),the density of the GT grout would be 1. 20 ~ 1. 50 g/cm3,the volume ratio could be controlled at 1∶ 1 ~ 3∶ 1,the retarder should be added properly under the high temperature environment in the underground mine. The initial setting time of the C- GT grout should be about 5 seconds longer than the connected time of the tracer and the grouting pressure should be controlled below 2. 5 MPa. When the total area of the drainage borehole was closed to the internal diameter area of the grouting pipeline,the grout flowing would be best and could be the highest controlled velocity during the grouting period.
In order to solve the grouting and water sealing technical problem of the loose and broken surrounding rock with the high pressurized water inflow in the shallow strata in a coal mine,a water drainage,permeability controlled grouting technology was provided. With the tests,a study was conducted on the C- GT grout performances,the grouting pressure affected to the failure of the surrounding rock,the grout flowing within the grout pipeline,the connection between the water inflow and control area,the influence when the water drainage borehole closed and others. The study results showed that under the condition of the deep water drainage,the following parameters applied to seal the high pressurized water inflow within the loose and broken surrounding rock of the shallow strata were safe and effective.Under the condition of the ambient temperature,the P. O42. 5R cement would be applied,the density of the cement grout would be about1. 50 g / cm3( a water and cement ratio would be 1∶ 1),the density of the GT grout would be 1. 20 ~ 1. 50 g/cm3,the volume ratio could be controlled at 1∶ 1 ~ 3∶ 1,the retarder should be added properly under the high temperature environment in the underground mine. The initial setting time of the C- GT grout should be about 5 seconds longer than the connected time of the tracer and the grouting pressure should be controlled below 2. 5 MPa. When the total area of the drainage borehole was closed to the internal diameter area of the grouting pipeline,the grout flowing would be best and could be the highest controlled velocity during the grouting period.
引文
[1]李刚,丛丽莉,梁冰.富水软岩巷道变形特征及其控制方法研究[J].水资源与水工程学报,2010,21(5):25-31.Li Gang,Cong Lili,Liang Bing.Study of the deformation features and control methods in water-rich soft rock roadway[J].Journal of Water Resources and Water Engineering,2010,21(5):25-31.
[2]齐治文,索超.围岩注浆加固技术在鹤煤十矿的应用[J].山东煤炭科技,2013(1):12-13.Qi Zhiwen,Suo Chao.Rock grouting reinforcement No.10 mine of Hebi Coal[J].Shandong Coal Science and Technology,2013(1):12-13.
[3]马永刚.中空锚固注浆封堵技术在色连二矿的应用[J].煤矿安全,2014,44(12):163-169.Ma Yonggang.Application of hollow anchoring grouting and sealing technology in Selian No.2 Coal Mine[J].Safety in Coal Mines,2014(12):163-169.
[4]张立功,继富胜.中空螺旋注浆锚杆在封堵高温高压砂岩含水层涌水中的应用[J].山东煤炭科技,2014(8):152-156.Zhang Ligong,Ji Fusheng.Application of hollow screw grouting bolt plugging in the high temperature and high pressure sandstone gushing water[J].Shandong Coal Science and Technology,2014(8):152-156.
[5]曹凯,张飞龙.预应力注浆锚索加固复合型顶板及堵水技术实践[J].神华科技,2011,9(4):34-37.Cao Kai,Zhang Feilong.Prestressed grouting anchor cable reinforced complex roof and water shut-off technology practice[J].Shenhua Science and Technology,2011,9(4):34-37.
[6]郭轲轶.破碎煤岩体钻锚注一体化加固技术研究[J].煤炭科技,2014,33(12):66-69.Guo Keyi.Research on grouting reinforcement technique and its application of fractured coal and rock[J].Coal Technology,2014,33(12):66-69.
[7]Kang Hongpu.Support technologies for deep and complex roadways in underground coal mines:a review[J].International Journal of Coal Science&Technology,2014,1(3):261-277.
[8]Fang Shulin,Zhang Jian.In-situ measure to internal stress of shotcrete layer in soft-rock roadway[J].International Journal of Coal Science&Technology,2014,1(3):321-328.
[9]Zheng Jiangtao,Ju Yang,Zhao Xi.Influence of pore structures on the mechanical behavior of low-permeability sandstones:numerical reconstruction and analysis[J].International Journal of Coal Science&Technology,2014,1(3):329-337.
[10]付学会,侯克鹏.壁后注浆技术在尾矿库溢流井隧道修护中的应用[J].有色金属,2011,63(6):43-46.Fu Xuehui,Hou Kepeng.Application of backwall grouting technology in spillway wells tunnel[J].Nonferrous Metals,2011,63(6):43-46.
[11]王剑峻.东欢坨矿大巷注浆堵水技术[J].中国矿山工程,2010,39(2):32-35.Wang Jianjun.Main roadway grouting for blocking up water technique in Donghuantuo Mine[J].China Mine Engineering,2010,39(2):32-35.
[12]张杰,潘越.“固水”注浆堵水技术在-195南大巷的研究应用[J].中小企业管理与科技,2014(5):220-221.Zhang Jie,Pan Yue.Research and application of the"water plugging"grouting technique in the south of-195[J].Management&Technology of SME,2014(5):220-221.
[13]沈冬生,郭锐,马宁.大范围冒顶突水巷道的快建处理方法[J].煤矿现代化,2013(5):20-24.Shen Dongsheng,Guo Rui,Ma Ning.A fast method for a wide range of roof water inrush roadway[J].Coal Mine Modernization,2013(5):20-24.
[14]石玉红.晋普山煤矿副平硐巷道涌水注浆治理技术[J].能源技术与管理,2013,38(2):128-137.Shi Yuhong.Jinpushan Coal Mine auxiliary adit laneway water inrush grouting technology[J].Energy Technology and Management,2013,38(2):128-137.
[15]许阳.淋水段砂岩顶板的注浆堵水实施与研究[J].山东煤炭科技,2012(1):186-187.Xu Yang.Practice and research of injecting glue to seal water in water-spray section sandstone roof[J].Shandong Coal Science and Technology,2012(1):186-187.
[16]张保芳.破碎煤岩体注浆加固技术及其应用[J].山西焦煤科技,2014(12):32-35.Zhang Baofang.Grouting reinforcement technique and application of fractured coal and rock[J].Shanxi Coking Coal Science&Technology,2014(12):32-35.
[17]郝勇,尚庆龙,张磊.高分子化学注浆加固在深井封堵渗漏水中的应用[J].山东煤炭科技,2014(4):144-148.Hao Yong,Shang Qinglong,Zhang Lei.Application of Polymer chemistry grouting reinforcement in deep well plugging seepage water[J].Shandong Coal Science and Technology,2014(4):144-148.
[18]任炳华.汝箕沟煤矿堵水加固新技术的应用[J].中小企业管理与科技,2012(6):148-149.Ren Binghua.Application of Rujigou Coal Mine water plugging reinforcement technology[J].Management&Technology of SME,2012(6):148-149.
[19]张霄,李术才,张庆松.关键孔注浆方法在高压裂隙水封堵中的应用研究[J].岩石力学与工程学报,2011,30(7):1414-1421.Zhang Xiao,Li Shucai,Zhang Qingsong.Study of key-hole grouting method to harness high pressure water gushing in fractured rock mass[J].Chinese Journal of Rock Mechanics and Engineering,2011,30(7):1414-1421.
[20]张辉.复杂地质条件区域断层注浆堵水技术的实践[J].现代矿业,2012(2):111-112.Zhang Hui.The practice of regional fault injection water shutoff technology in complex geological conditions[J].Modern Mining,2012(2):111-112.
[21]郭建亮.帷幕注浆在维护巷道断层中的应用[J].现代矿业,2010(9):120-121.Guo Jianliang.Application of curtain grouting in the maintenance of roadway fault[J].Modern Mining,2010(9):120-121.
[22]陈建国,张孟军.特大岩溶及连续含水裂隙破碎带治理技术[J].低碳世界,2014(13):173-175.Chen Jianguo,Zhang Mengjun.Treatment technology of large karst and continuous water cut fractured zone[J].Low Carbon World,2014(13):173-175.
[23]张霄,李术才,张庆松.矿山高压裂隙涌水综合治理方法的现场试验[J].煤炭学报,2010,35(8):1314-1318.Zhang Xiao,Li Shucai,Zhang Qingsong.Filed test of comprehensive treatment method for high pressure dynamic grouting[J].Journal of China Coal Society,2010,35(8):1314-1318.
[24]徐栓祥.龙固煤矿2#辅运大巷底板涌水段探测及注浆技术研究[J].陕西煤炭,2010(5):64-65.Xu Shuanxiang.Longgu Mine auxiliary transport of 2#roadway floor water gushing section detection and grouting technology[J].Shanxi Coal,2010(5):64-65.
[25]惠冰,张庆松,张立.高空隙率砂岩涌水渗流场特征与注浆治理[J].煤炭学报,2014,39(S1):184-190.Hui Bing,Zhang Qingsong,Zhang Li.Study on the seepage field characteristics and plugging of high porosity sandstone inflow under grouting[J].Journal of China Coal Society,2014,39(S1):184-190.
[26]张立,惠冰,张庆松.深井巷道断层涌水探查与封堵治理[J].金属矿山,2014,43(5):15-20.Zhang Li,Hui Bing,Zhang Qingsong.Fault water gushing exploration and plugging management in deep mine roadway[J].Metal Mine,2014,43(5):15-20.
[27]刘人太,李术才,张庆松.示踪试验分析方法在地下工程水害治理中的应用研究[J].岩石力学与工程学报,2012,31(4):814-822.Liu Rentai,Li Shucai,Zhang Qingsong.Research on application of tracer experiment analysis method to water hazards management in underground engineering[J].Chinese Journal of Rock Mechanics and Engineering,2012,31(4):814-822.
[28]马乐辉.常村煤矿东翼胶带运输巷突水段巷道的治理[J].中州煤炭,2010(12):814-822.Ma Lehui.Roadway Treatment of water inrush section in eastern belt headentry of Changcun Coal Mine[J].Zhongzhou Coal,2010(12):814-822.
[29]刘人太.水泥基速凝浆液地下工程动水注浆扩散封堵机理及应用研究[D].济南:山东大学,2012.
[2]齐治文,索超.围岩注浆加固技术在鹤煤十矿的应用[J].山东煤炭科技,2013(1):12-13.Qi Zhiwen,Suo Chao.Rock grouting reinforcement No.10 mine of Hebi Coal[J].Shandong Coal Science and Technology,2013(1):12-13.
[3]马永刚.中空锚固注浆封堵技术在色连二矿的应用[J].煤矿安全,2014,44(12):163-169.Ma Yonggang.Application of hollow anchoring grouting and sealing technology in Selian No.2 Coal Mine[J].Safety in Coal Mines,2014(12):163-169.
[4]张立功,继富胜.中空螺旋注浆锚杆在封堵高温高压砂岩含水层涌水中的应用[J].山东煤炭科技,2014(8):152-156.Zhang Ligong,Ji Fusheng.Application of hollow screw grouting bolt plugging in the high temperature and high pressure sandstone gushing water[J].Shandong Coal Science and Technology,2014(8):152-156.
[5]曹凯,张飞龙.预应力注浆锚索加固复合型顶板及堵水技术实践[J].神华科技,2011,9(4):34-37.Cao Kai,Zhang Feilong.Prestressed grouting anchor cable reinforced complex roof and water shut-off technology practice[J].Shenhua Science and Technology,2011,9(4):34-37.
[6]郭轲轶.破碎煤岩体钻锚注一体化加固技术研究[J].煤炭科技,2014,33(12):66-69.Guo Keyi.Research on grouting reinforcement technique and its application of fractured coal and rock[J].Coal Technology,2014,33(12):66-69.
[7]Kang Hongpu.Support technologies for deep and complex roadways in underground coal mines:a review[J].International Journal of Coal Science&Technology,2014,1(3):261-277.
[8]Fang Shulin,Zhang Jian.In-situ measure to internal stress of shotcrete layer in soft-rock roadway[J].International Journal of Coal Science&Technology,2014,1(3):321-328.
[9]Zheng Jiangtao,Ju Yang,Zhao Xi.Influence of pore structures on the mechanical behavior of low-permeability sandstones:numerical reconstruction and analysis[J].International Journal of Coal Science&Technology,2014,1(3):329-337.
[10]付学会,侯克鹏.壁后注浆技术在尾矿库溢流井隧道修护中的应用[J].有色金属,2011,63(6):43-46.Fu Xuehui,Hou Kepeng.Application of backwall grouting technology in spillway wells tunnel[J].Nonferrous Metals,2011,63(6):43-46.
[11]王剑峻.东欢坨矿大巷注浆堵水技术[J].中国矿山工程,2010,39(2):32-35.Wang Jianjun.Main roadway grouting for blocking up water technique in Donghuantuo Mine[J].China Mine Engineering,2010,39(2):32-35.
[12]张杰,潘越.“固水”注浆堵水技术在-195南大巷的研究应用[J].中小企业管理与科技,2014(5):220-221.Zhang Jie,Pan Yue.Research and application of the"water plugging"grouting technique in the south of-195[J].Management&Technology of SME,2014(5):220-221.
[13]沈冬生,郭锐,马宁.大范围冒顶突水巷道的快建处理方法[J].煤矿现代化,2013(5):20-24.Shen Dongsheng,Guo Rui,Ma Ning.A fast method for a wide range of roof water inrush roadway[J].Coal Mine Modernization,2013(5):20-24.
[14]石玉红.晋普山煤矿副平硐巷道涌水注浆治理技术[J].能源技术与管理,2013,38(2):128-137.Shi Yuhong.Jinpushan Coal Mine auxiliary adit laneway water inrush grouting technology[J].Energy Technology and Management,2013,38(2):128-137.
[15]许阳.淋水段砂岩顶板的注浆堵水实施与研究[J].山东煤炭科技,2012(1):186-187.Xu Yang.Practice and research of injecting glue to seal water in water-spray section sandstone roof[J].Shandong Coal Science and Technology,2012(1):186-187.
[16]张保芳.破碎煤岩体注浆加固技术及其应用[J].山西焦煤科技,2014(12):32-35.Zhang Baofang.Grouting reinforcement technique and application of fractured coal and rock[J].Shanxi Coking Coal Science&Technology,2014(12):32-35.
[17]郝勇,尚庆龙,张磊.高分子化学注浆加固在深井封堵渗漏水中的应用[J].山东煤炭科技,2014(4):144-148.Hao Yong,Shang Qinglong,Zhang Lei.Application of Polymer chemistry grouting reinforcement in deep well plugging seepage water[J].Shandong Coal Science and Technology,2014(4):144-148.
[18]任炳华.汝箕沟煤矿堵水加固新技术的应用[J].中小企业管理与科技,2012(6):148-149.Ren Binghua.Application of Rujigou Coal Mine water plugging reinforcement technology[J].Management&Technology of SME,2012(6):148-149.
[19]张霄,李术才,张庆松.关键孔注浆方法在高压裂隙水封堵中的应用研究[J].岩石力学与工程学报,2011,30(7):1414-1421.Zhang Xiao,Li Shucai,Zhang Qingsong.Study of key-hole grouting method to harness high pressure water gushing in fractured rock mass[J].Chinese Journal of Rock Mechanics and Engineering,2011,30(7):1414-1421.
[20]张辉.复杂地质条件区域断层注浆堵水技术的实践[J].现代矿业,2012(2):111-112.Zhang Hui.The practice of regional fault injection water shutoff technology in complex geological conditions[J].Modern Mining,2012(2):111-112.
[21]郭建亮.帷幕注浆在维护巷道断层中的应用[J].现代矿业,2010(9):120-121.Guo Jianliang.Application of curtain grouting in the maintenance of roadway fault[J].Modern Mining,2010(9):120-121.
[22]陈建国,张孟军.特大岩溶及连续含水裂隙破碎带治理技术[J].低碳世界,2014(13):173-175.Chen Jianguo,Zhang Mengjun.Treatment technology of large karst and continuous water cut fractured zone[J].Low Carbon World,2014(13):173-175.
[23]张霄,李术才,张庆松.矿山高压裂隙涌水综合治理方法的现场试验[J].煤炭学报,2010,35(8):1314-1318.Zhang Xiao,Li Shucai,Zhang Qingsong.Filed test of comprehensive treatment method for high pressure dynamic grouting[J].Journal of China Coal Society,2010,35(8):1314-1318.
[24]徐栓祥.龙固煤矿2#辅运大巷底板涌水段探测及注浆技术研究[J].陕西煤炭,2010(5):64-65.Xu Shuanxiang.Longgu Mine auxiliary transport of 2#roadway floor water gushing section detection and grouting technology[J].Shanxi Coal,2010(5):64-65.
[25]惠冰,张庆松,张立.高空隙率砂岩涌水渗流场特征与注浆治理[J].煤炭学报,2014,39(S1):184-190.Hui Bing,Zhang Qingsong,Zhang Li.Study on the seepage field characteristics and plugging of high porosity sandstone inflow under grouting[J].Journal of China Coal Society,2014,39(S1):184-190.
[26]张立,惠冰,张庆松.深井巷道断层涌水探查与封堵治理[J].金属矿山,2014,43(5):15-20.Zhang Li,Hui Bing,Zhang Qingsong.Fault water gushing exploration and plugging management in deep mine roadway[J].Metal Mine,2014,43(5):15-20.
[27]刘人太,李术才,张庆松.示踪试验分析方法在地下工程水害治理中的应用研究[J].岩石力学与工程学报,2012,31(4):814-822.Liu Rentai,Li Shucai,Zhang Qingsong.Research on application of tracer experiment analysis method to water hazards management in underground engineering[J].Chinese Journal of Rock Mechanics and Engineering,2012,31(4):814-822.
[28]马乐辉.常村煤矿东翼胶带运输巷突水段巷道的治理[J].中州煤炭,2010(12):814-822.Ma Lehui.Roadway Treatment of water inrush section in eastern belt headentry of Changcun Coal Mine[J].Zhongzhou Coal,2010(12):814-822.
[29]刘人太.水泥基速凝浆液地下工程动水注浆扩散封堵机理及应用研究[D].济南:山东大学,2012.
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