斜井穿越风积砂层水砂突涌注浆治理研究
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摘要
陕西榆林金鸡滩煤矿副斜井井筒表层广泛分布厚层风积砂,由于短时间内载重运输车的重复碾压,导致斜井底板破裂,发生水砂突涌灾害,严重威胁矿井安全。针对金鸡滩煤矿副斜井水砂突涌灾害治理难题,工程前期采用水泥注浆治理,起到了很好的固砂减水效果,但是并未完全封堵涌水通道;后期通过补注化学浆液,成功封堵了残存涌水通道。结合工程实践与模型试验,分析了斜井底板破裂原因、注浆治理效果及不同种类浆液的固砂堵水机理。现场治理效果与模型试验结果表明,水泥浆液主要以树根状劈裂脉固砂为主;化学浆液以劈裂和渗透堵水为主,在封堵残存涌水通道上更具优势,因此两种类型浆液配合使用效果更佳。
There are widely distributed thick aeolian sand layer covering the surface of the auxiliary inclined shaft of the Jinjitan Coal Mine,Yulin,Shaanxi province. The floor of the auxiliary inclined shaft ruptured due to the repeat roll er compaction of large tonnage vehicles on the floor during a short time,which resulted in water and sand inrush and seriously threatened the safety of the mine. Aiming at the problem of water and sand inrush of the Jinjitan Coal Mine,cement grouting treatment was implemented first and it played an important role in sealing water and sand inrush,but water inflow was not completely plugged. Then the remaining water inflow was successfully plugged by chemical grou ting. Based on the engineering practice and model test,the reasons for the rupture of the floor,effect of the grouting treatment and reinforcement mechanism of different grout were analyzed in this paper. The results of field treatment and model test show that the cement grouting reinforced sand by tree like propagated grout veins,the chemical grouting reinforced sand by splitting and infiltration,which is more advantageous to seal off the residual pathway of water in flow. Therefore the combining use of cement and chemical grouts has been proved a good efficiency.
There are widely distributed thick aeolian sand layer covering the surface of the auxiliary inclined shaft of the Jinjitan Coal Mine,Yulin,Shaanxi province. The floor of the auxiliary inclined shaft ruptured due to the repeat roll er compaction of large tonnage vehicles on the floor during a short time,which resulted in water and sand inrush and seriously threatened the safety of the mine. Aiming at the problem of water and sand inrush of the Jinjitan Coal Mine,cement grouting treatment was implemented first and it played an important role in sealing water and sand inrush,but water inflow was not completely plugged. Then the remaining water inflow was successfully plugged by chemical grou ting. Based on the engineering practice and model test,the reasons for the rupture of the floor,effect of the grouting treatment and reinforcement mechanism of different grout were analyzed in this paper. The results of field treatment and model test show that the cement grouting reinforced sand by tree like propagated grout veins,the chemical grouting reinforced sand by splitting and infiltration,which is more advantageous to seal off the residual pathway of water in flow. Therefore the combining use of cement and chemical grouts has been proved a good efficiency.
引文
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[13]王档良,鞠远江,胡文武.杨庄煤矿副井破裂井壁多次治理效果对比分析[J].煤炭科学技术,2009,37(1):65-68.WANG Dangliang,JU Yuanjiang,HU Wenwu.Comparison analysis on several treatment results of mine auxiliary shaft cracked liner in Yangzhuang Mine[J].Coal Science and Technology,2009,37(1):65-68.
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[15]钱自卫,马保明,姜振泉,等.斜井二次涌水原因分析及注浆治理措施[J].水文地质工程地质,2012,39(2):19-22.QIAN Ziwei,MA Baoming,JIANG Zhenquan,et al.Hydrogeological analysis and control of groundwater inrush for the second time in an inclined shaft[J].Hydrogeology&Engineering Geology,2012,39(2):19-22.
[16]倪兴华,隋旺华,关云章,等.煤矿立井井壁破裂防治技术研究[M].徐州:中国矿业大学出版社,2005.
[17]郭密文.高压封闭环境孔隙介质中化学浆液扩散机制试验研究[D].徐州:中国矿业大学,2010.GUO Miwen.Experimental investigation of propagation mechanism of chemical grout injection into porous media under a high pressure and closed environment[D].Xuzhou:China University of Mining and Technology,2010.
[18]李术才,张霄,张庆松,等.地下工程涌突水注浆止水浆液扩散机制和封堵方法研究[J].岩石力学与工程学报,2011,30(12):2377-2396.LI Shucai,ZHANG Xiao,ZHANG Qingsong,et al.Research on mechanism of grout diffusion of dynamic grouting and plug-ging method in water inrush of underground engineering[J].Chi-nese Journal of Mechanics and Engineering,2011,30(12):2377-2396.
[19]ZHANG Gailing.An experimental investigation on the permeability of chemically grouted sands and its application for mitigating under-ground sand and water inrushes[J].International Journal of Envi-ronment&Pollution,2016,59(2/3/4):187-202.
[20]GAO Yue,SUI Wanghua.Modelling of chemical grout column per-meated by water in transparent soil[J].International Journal of En-vironment&Pollution,2016,59(2/3/4):142-155.
[21]GAO Yue,SUI Wanghua,LIU Jinyuan.Visualization of chemi-cal grout permeation in transparent soil[J].Geotechnical Testing Journal,2015,38(5):774-786.
[2]张文泉,张永双,席京德,等.煤矿立井井壁破裂的机制及防治措施[J].中国地质灾害与防治学报,2001,12(4):13-17.ZHANG Wenquan,ZHANG Yongshuang,XI Jingde,et al.The mech-anism of sidewall cracking in vertical well of coal mine and its pre-vention countermeasures[J].The Chinese Journal of Geological Haz-ard and Control,2001,12(4):13-17.
[3]夏红春,汤美安.表土层注浆加固法防治井壁破裂的机理及应用[J].采矿与安全工程学报,2009,26(4):407-412.XIA Hongchun,TANG Meian.Mechanism and application of grou-ting into topsoil to prevent shaft lining from fracturing[J].Journal of Mining&Safety Engineering,2009,26(4):407-412.
[4]梁恒昌,周国庆,赵光思,等.井壁破裂过程的应变实测特征分析[J].煤炭学报,2010,35(2):198-202.LIANG Hengchang,ZHOU Guoqing,ZHAO Guangsi,et al.Strain characters of shaft lining crack[J].Journal of China Coal So-ciety,2010,35(2):198-202.
[5]李忠.在建铁路隧道水砂混合物突涌灾害的形成机制、预报及防治[D].徐州:中国矿业大学,2009.LI Zhong.Study on formation mechanism,prediction and prevention of the water and sand inrush in railway tunnel under construction[D].Xuzhou:China University of Mining and Technology,2009.
[6]范立民,马雄德,蒋辉,等.西部生态脆弱矿区矿井突水溃沙危险性分区[J].煤炭学报,2016,41(3):531-536.Fan Limin,Ma Xiongde,Jiang Hui,et al.Risk evaluation on water and sand inrush in ecologically fragile coal mine[J].Journal of Chi-na Coal Society,2016,41(3):531-536.
[7]王传团,张绍敏,周大鹏,等.金桥煤矿副井冻结管射孔注浆技术[J].建井技术,2004,25(1):1-3.WANG Chuantuan,ZHANG Shaomin,ZHOU Dapeng,et al.Perfora-tion grouting technology of freezing pipe in auxiliary shaft of Jinqiao Coal Mine[J].Mine Construction Technology,2004,25(1):1-3.
[8]栾元重,王宜振.金桥煤矿井筒变形实时测量与井筒破坏突变模型[J].焦作工学院学报(自然科学版),2001(2):90-93.LUAN Yuanzhong,WANG Yizhen.A real time observation and ca-tastrophe model of shaft damage for Jinqiao shaft deformation[J].Journal of Jiaozuo Institute of Technology(Natural Science),2001(2):90-93.
[9]栾元重,佟文亮,仲树强.金桥煤矿井筒变形监测技术的探讨[J].矿山测量,2000(4):13-15.LUAN Yuanzhong,TONG Wenliang,ZHONG Shuqiang.Discussion on deformation monitoring technology of mine shaft in Jinqiao Coal Mine[J].Mine Surveying,2000(4):13-15.
[10]苗鑫淼.李粮店井田巨厚松散层水文地质结构与涌水沉降研究[D].徐州:中国矿业大学,2015.MIAO Xinmiao.Research on the hydrogeological structure of thick loose formation and water gushing settlement in Liliangdian Mine[D].Xuzhou:China University of Mining and Technology,2015.
[11]葛颜慧.岩溶隧道突水风险评价与预警机制研究[D].济南:山东大学,2010.GE Yanhui.Study on water inrush risk and early warning mecha-nism of karst tunnel[D].Jinan:Shandong University,2010.
[12]张宝永.胡麻岭隧道斜井突水涌砂治理措施研究[J].兰州交通大学学报,2015,34(1):23-27.ZHANG Baoyong.Study on controlling measures of the sandy-silt seepage in Humaling tunnel[J].Journal of Lanzhou Jiaotong Uni-versity,2015,34(1):23-27.
[13]王档良,鞠远江,胡文武.杨庄煤矿副井破裂井壁多次治理效果对比分析[J].煤炭科学技术,2009,37(1):65-68.WANG Dangliang,JU Yuanjiang,HU Wenwu.Comparison analysis on several treatment results of mine auxiliary shaft cracked liner in Yangzhuang Mine[J].Coal Science and Technology,2009,37(1):65-68.
[14]夏红春,周国庆.地面注浆加固地层法在治理井壁破裂中的应用[J].矿业安全与环保,2008,35(4):25-27.XIA Hongchun,ZHOU Guoqing.Application of ground grouting re-inforcement method in controlling shaft wall rupture[J].Min-ing Safety and Environmental Protection,2008,35(4):25-27.
[15]钱自卫,马保明,姜振泉,等.斜井二次涌水原因分析及注浆治理措施[J].水文地质工程地质,2012,39(2):19-22.QIAN Ziwei,MA Baoming,JIANG Zhenquan,et al.Hydrogeological analysis and control of groundwater inrush for the second time in an inclined shaft[J].Hydrogeology&Engineering Geology,2012,39(2):19-22.
[16]倪兴华,隋旺华,关云章,等.煤矿立井井壁破裂防治技术研究[M].徐州:中国矿业大学出版社,2005.
[17]郭密文.高压封闭环境孔隙介质中化学浆液扩散机制试验研究[D].徐州:中国矿业大学,2010.GUO Miwen.Experimental investigation of propagation mechanism of chemical grout injection into porous media under a high pressure and closed environment[D].Xuzhou:China University of Mining and Technology,2010.
[18]李术才,张霄,张庆松,等.地下工程涌突水注浆止水浆液扩散机制和封堵方法研究[J].岩石力学与工程学报,2011,30(12):2377-2396.LI Shucai,ZHANG Xiao,ZHANG Qingsong,et al.Research on mechanism of grout diffusion of dynamic grouting and plug-ging method in water inrush of underground engineering[J].Chi-nese Journal of Mechanics and Engineering,2011,30(12):2377-2396.
[19]ZHANG Gailing.An experimental investigation on the permeability of chemically grouted sands and its application for mitigating under-ground sand and water inrushes[J].International Journal of Envi-ronment&Pollution,2016,59(2/3/4):187-202.
[20]GAO Yue,SUI Wanghua.Modelling of chemical grout column per-meated by water in transparent soil[J].International Journal of En-vironment&Pollution,2016,59(2/3/4):142-155.
[21]GAO Yue,SUI Wanghua,LIU Jinyuan.Visualization of chemi-cal grout permeation in transparent soil[J].Geotechnical Testing Journal,2015,38(5):774-786.