基于改进BEAM法的煤矿斜井盾构超前探测方法
|
摘要
针对盾构法建设煤矿斜井时的地质勘探难题,在钻孔掘进电法超前监测(bore-tunneling electrical ahead monitoring,BEAM)系统的基础上引入了电阻率层析成像技术,改进了激励和测量模式,为掘进工作面前方地质状况的反演成像提供了解算条件。为提高反演成像的速度,提出了虚拟接地电极等价模型来代替原来的保护电极模型。最后,通过物理模型试验研究了不同虚拟接地电极位置对反演结果的影响。结果表明:当异常体的几何中心与刀盘之间的距离分别为0.15m和0.20m,而虚拟接地电极与刀盘之间的距离分别为0.26m和0.35m时,反演出来的异常体位置与物理模型试验中的异常体位置最为接近,验证了这种方法的可行性。
To solve the geological exploration problems when the shield method is used to construct inclined shafts in coal mines,the electrical resistivity tomography technology was introduced based on the bore-tunneling electrical ahead monitoring(BEAM)system and the excitation and measurement mode was improved to provide a solution condition for the inversion imaging of geological conditions in front of the tunneling face.In order to improve the speed of inversion imaging,a virtual grounding electrode equivalent model was proposed to replace the original guard electrode model.Finally,the influence of different virtual grounding electrode positions on the inversion results was studied through a physical model test.The results show that when the distance between the geometric center of the abnormal body and the cutterhead is respectively 0.15 mand 0.20 m,and the distance between the virtual grounding electrode and the cutterhead is respectively 0.26 mand 0.35 m,the inverted abnormal body position is the closest to the abnormal body position in the physical model test,which verifies the feasibility of this method.
To solve the geological exploration problems when the shield method is used to construct inclined shafts in coal mines,the electrical resistivity tomography technology was introduced based on the bore-tunneling electrical ahead monitoring(BEAM)system and the excitation and measurement mode was improved to provide a solution condition for the inversion imaging of geological conditions in front of the tunneling face.In order to improve the speed of inversion imaging,a virtual grounding electrode equivalent model was proposed to replace the original guard electrode model.Finally,the influence of different virtual grounding electrode positions on the inversion results was studied through a physical model test.The results show that when the distance between the geometric center of the abnormal body and the cutterhead is respectively 0.15 mand 0.20 m,and the distance between the virtual grounding electrode and the cutterhead is respectively 0.26 mand 0.35 m,the inverted abnormal body position is the closest to the abnormal body position in the physical model test,which verifies the feasibility of this method.
引文
[1]王家臣，仲淑姮．我国厚煤层开采技术现状及需要解决的关键问题[J]．中国科技论文在线，2008,3(11):829-834.WANG Jiachen,ZHONG Shuheng.The present status and the key issues to be resolved of thick seam mining technique in China[J].Sciencepaper Online,2008,3(11):829-834.(in Chinese)
[2]孙国慧．大断面斜井快速掘进工艺方案研究[J]．山东煤炭科技，2018(5):30-31.SUN Guohui.Research on rapid excavation technology scheme of large section inclined shaft[J].Shandong Coal Science and Technology,2018(5):30-31.(in Chinese)
[3]张云飞．煤矿斜井综掘机快速掘进施工技术管理探究[J]．山东煤炭科技，2018(7):58-59,64.ZHANG Yunfei.Study on construction technology management of comprehensive mechanized driving in coal mine slope[J].Shandong Coal Science and Technology,2018(7):58-59,64.(in Chinese)
[4]刘有为．煤矿开拓方式和特点研究[J]．内蒙古煤炭经济，2018(18):14,16.LIU Youwei.Research on development mode and characteristics of coal mines[J].Inner Mongolia Coal Economy,2018(18):14,16.(in Chinese)
[5]雷升祥．浅析煤矿长斜井TBM法综合施工技术[J]．铁道建筑技术，2012(4):1-6.LEI Shengxiang.Analysis of comprehensive coal mine construction technology of long inclined shaft with TBM method[J].Railway Construction Technology,2012(4):1-6.(in Chinese)
[6]周文波．盾构法隧道施工技术及应用[M]．北京：中国建筑工业出版社，2004:108-112.ZHOU Wenbo.Shield tunnel construction technology and its application[M].Beijing:China Architecture&Building Press,2004:108-112.(in Chinese)
[7]王梦恕．中国铁路、隧道与地下空间发展概况[J]．隧道建设，2010,30(4):351-364.WANG Mengshu.An overview of development of railway,tunnel and underground words in China[J].Tunnel Construction,2010,30(4):351-364.(in Chinese)
[8]刘绍宝，张应恩，周如成．超前地质预报在TBM施工中的应用[J]．现代隧道技术，2007,44(3):35-41,49.LIU Shaobao,ZHANG Ying’en,ZHOU Rucheng.Application of advanced geology forecast in TBM construction[J].Modern Tunnelling Technology,2007,44(3):35-41,49.(in Chinese)
[9]程合奎，侯守杰．TBM施工隧洞中超前地质预报研究[J]．内蒙古水利，2015(2):20-21.CHENG Hekui,HOU Shoujie.Research on advance geological prediction in TBM construction tunnel[J].Inner Mongolia Water Conservancy,2015(2):20-21.(in Chinese)
[10]秦鹏翔，杨晓迎，翟建华．综合超前地质预报在深埋超长大隧洞TBM施工中的应用及对比分析[J]．工程勘察，2008(S1):262-275.QIN Pengxiang,YANG Xiaoying,ZHAI Jianhua.Application and comparative analysis of comprehensive advanced geological prediction in TBM construction of deep and super long tunnel[J].Geotechnical Investigation&Surveying,2008(S1):262-275.(in Chinese)
[11]KAUS A,BOENING W.BEAM-geoelectrical ahead monitoring for TBM-drives[J]. Geomechanics and Tunnelling,2010,1(5):442-449.
[12]李健军．瞬变电磁仪法与超前水平钻孔法在隧道施工中的综合运用[J]．价值工程，2017,36(32):118-120.LI Jianjun.Comprehensive application of transient electromagnetism method and advanced horizontal drilling method in tunnel construction[J].Value Engineering,2017,36(32):118-120.(in Chinese)
[13]廖建明．水电站引水隧洞BEAM系统地质超前预报研究[J]．设备管理与维修，2016(2):84-86.LIAO Jianming.Study on geological advance forecast of beam systems in diversion tunnel of hydropower station[J].Plant Maintenance Engineering,2016(2):84-86.(in Chinese)
[2]孙国慧．大断面斜井快速掘进工艺方案研究[J]．山东煤炭科技，2018(5):30-31.SUN Guohui.Research on rapid excavation technology scheme of large section inclined shaft[J].Shandong Coal Science and Technology,2018(5):30-31.(in Chinese)
[3]张云飞．煤矿斜井综掘机快速掘进施工技术管理探究[J]．山东煤炭科技，2018(7):58-59,64.ZHANG Yunfei.Study on construction technology management of comprehensive mechanized driving in coal mine slope[J].Shandong Coal Science and Technology,2018(7):58-59,64.(in Chinese)
[4]刘有为．煤矿开拓方式和特点研究[J]．内蒙古煤炭经济，2018(18):14,16.LIU Youwei.Research on development mode and characteristics of coal mines[J].Inner Mongolia Coal Economy,2018(18):14,16.(in Chinese)
[5]雷升祥．浅析煤矿长斜井TBM法综合施工技术[J]．铁道建筑技术，2012(4):1-6.LEI Shengxiang.Analysis of comprehensive coal mine construction technology of long inclined shaft with TBM method[J].Railway Construction Technology,2012(4):1-6.(in Chinese)
[6]周文波．盾构法隧道施工技术及应用[M]．北京：中国建筑工业出版社，2004:108-112.ZHOU Wenbo.Shield tunnel construction technology and its application[M].Beijing:China Architecture&Building Press,2004:108-112.(in Chinese)
[7]王梦恕．中国铁路、隧道与地下空间发展概况[J]．隧道建设，2010,30(4):351-364.WANG Mengshu.An overview of development of railway,tunnel and underground words in China[J].Tunnel Construction,2010,30(4):351-364.(in Chinese)
[8]刘绍宝，张应恩，周如成．超前地质预报在TBM施工中的应用[J]．现代隧道技术，2007,44(3):35-41,49.LIU Shaobao,ZHANG Ying’en,ZHOU Rucheng.Application of advanced geology forecast in TBM construction[J].Modern Tunnelling Technology,2007,44(3):35-41,49.(in Chinese)
[9]程合奎，侯守杰．TBM施工隧洞中超前地质预报研究[J]．内蒙古水利，2015(2):20-21.CHENG Hekui,HOU Shoujie.Research on advance geological prediction in TBM construction tunnel[J].Inner Mongolia Water Conservancy,2015(2):20-21.(in Chinese)
[10]秦鹏翔，杨晓迎，翟建华．综合超前地质预报在深埋超长大隧洞TBM施工中的应用及对比分析[J]．工程勘察，2008(S1):262-275.QIN Pengxiang,YANG Xiaoying,ZHAI Jianhua.Application and comparative analysis of comprehensive advanced geological prediction in TBM construction of deep and super long tunnel[J].Geotechnical Investigation&Surveying,2008(S1):262-275.(in Chinese)
[11]KAUS A,BOENING W.BEAM-geoelectrical ahead monitoring for TBM-drives[J]. Geomechanics and Tunnelling,2010,1(5):442-449.
[12]李健军．瞬变电磁仪法与超前水平钻孔法在隧道施工中的综合运用[J]．价值工程，2017,36(32):118-120.LI Jianjun.Comprehensive application of transient electromagnetism method and advanced horizontal drilling method in tunnel construction[J].Value Engineering,2017,36(32):118-120.(in Chinese)
[13]廖建明．水电站引水隧洞BEAM系统地质超前预报研究[J]．设备管理与维修，2016(2):84-86.LIAO Jianming.Study on geological advance forecast of beam systems in diversion tunnel of hydropower station[J].Plant Maintenance Engineering,2016(2):84-86.(in Chinese)
© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号 地址：北京市海淀区学院路29号 邮编：100083 电话：办公室：(+86 10)66554848；文献借阅、咨询服务、科技查新：66554700 |