安家岭煤矿岩体结构数字识别及关键块体确定
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摘要
安家岭煤矿存在大量不稳定块体,安全隐患非常高,必须进行关键块体的预防治理工作。以北帮1300边坡平台为工程背景,采用先进的三维岩体不接触测量技术,进行岩体结构面的现场测量,获取岩体节理几何形态空间分布信息,建立三维岩体结构面空间分布模型。在此基础上,利用获得的边坡岩体结构面基本参数信息,基于不稳定块体快速识别和分析系统(Geo SMA-3D),进行边坡关键块体的搜索,并对所得结果进行理论分析,确定边坡较易掉落的块体及影响块体不稳定的因素。
The rock masses are separated by structural surfaces and there are many instability blocks with different geometric shapes which can be easily seen from the field in Anjialing open pit. It is a high risk for the slope safety due to the bad geological condition,so a study on the blocks stability is urgently needed. In this study,the step at + 1300 level of the slope was investigated. Firstly,the spatial geometric parameters of the structural planes was gained by photogrammetry using a three-dimensional contact-free measuring system. Then a 3D numerical model of the structural planes was built based on the measured parameters. Finally,a self-developed software instability block fast recognition and analysis system( Geo SMA-3D) was used to search and analyze the key block of the slope rock mass. The simulation results reflect the actual situation very well,which means that the method of the key block search and analysis is reasonable and feasible.
The rock masses are separated by structural surfaces and there are many instability blocks with different geometric shapes which can be easily seen from the field in Anjialing open pit. It is a high risk for the slope safety due to the bad geological condition,so a study on the blocks stability is urgently needed. In this study,the step at + 1300 level of the slope was investigated. Firstly,the spatial geometric parameters of the structural planes was gained by photogrammetry using a three-dimensional contact-free measuring system. Then a 3D numerical model of the structural planes was built based on the measured parameters. Finally,a self-developed software instability block fast recognition and analysis system( Geo SMA-3D) was used to search and analyze the key block of the slope rock mass. The simulation results reflect the actual situation very well,which means that the method of the key block search and analysis is reasonable and feasible.
引文
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[7]杨天鸿,于庆磊,陈世阔,等.范各庄煤矿砂岩岩体结构数字识别及参数表征[J].岩石力学与工程学报,2009,28(12):2482-2489.Yang Tianhong,Yu Qinglei,Chen Shikuo,et al.Rock mass structure digital recognition and hytromechanical parameters characterization of sandstone in fangezhuang coal mine[J].Chinese Journal of Rock Mechanics and Engineering,2009,28(12):2482-2489.
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[9]石根华.岩体稳定分析的几何方法[J].中国科学,1981,9(4):487-495.Shi Genhua.Geometrical approach of rock mass stability analysis[J].Science in China,1981,9(4):487-495.
[10]Shi G H,Goodman R E.The key blocks of unrolled joint traces in developed maps of tunnel walls[J].International Journal for Numerical Analytical Methods in Geomechanics,1989,13(2):131-158.
[11]奥地利Startup公司.Shape Metri X3D系统使用手册[R].沈阳:欧美大地仪器设备中国有限公司,2008.Startup Company from Austrian.Shape Metri X3D service manual[R].Shenyang:Earth Products China Limited,2008.
[12]王述红,杨勇,王洋,等.基于数字摄影测量的开挖空间模型及不稳定块体的快速识别[J].岩石力学与工程学报,2010,29(S1):3432-3438.Wang Shuhong,Yang Yong,Wang Yang,et al.Spatial modeling and quick identification of unstable rock blocks based on a digital photogrammetry[J].Chinese Journal of Rock Mechanics and Engineering,2010,29(S1):3432-3438.
[13]王述红,杨勇,郭牡丹,等.岩体隧道施工诱发的关键块体三维模型及其验证[J].东北大学学报:自然科学版,2009,30(6):877-880,912.Wang Shuhong,Yang Yong,Guo Mudan,et al.Three-dimensional model for key block due to rock tunnel construction and its computerized verification[J].Journal of Northeastern University(Natural Science),2009,30(6):877-880,912.
[14]Wang Shuhong,Ni Pengpeng,Guo Mudan.Spatial characterization of joint planes and stability analysis of tunnel blocks[J].Tunnelling and Underground Space Technology,2013,38:357-367.
[15]王述红,杨勇,王洋,等.裂隙岩体隧道施工关键块体识别数值方法[J].地下空间与工程学报,2009,5(5):976-979.Wang Shuhong,Yang Yong,Wang Yang,et al.Numerical method of key block identification for jointed rock tunnel construction[J].Chinese Journal of Underground Space and Engineering,2009,5(5):976-979.
[2]孙广忠.岩体结构力学[M].北京:科学出版社,1998.
[3]谢和平,陈忠辉.岩石力学[M].北京:科学出版社,2004.
[4]王凤艳,陈剑平,付学慧,等.基于Virtuo Zo的岩体结构面几何信息获取研究[J].岩石力学与工程学报,2008,27(1):169-175.Wang Fengyan,Chen Jianping,Fu Xuehui,et al.Study on geometrical information of obtaining rock mass discontinuities based on Virtuo Zo[J].Chinese Journal of Rock Mechanics and Engineering,2008,27(1):169-175.
[5]Robertson A M.The interpretation of geological factors for use in slope theory[A].Planning Open Pit Mines[C].Cape Town:A.A.Balkema,1970:55-71.
[6]Neuman S P.Trends,prospects and challenges in quantifying flow and transport through fractured rocks[J].Hydrogeology Journal,2005,13(3):124-147.
[7]杨天鸿,于庆磊,陈世阔,等.范各庄煤矿砂岩岩体结构数字识别及参数表征[J].岩石力学与工程学报,2009,28(12):2482-2489.Yang Tianhong,Yu Qinglei,Chen Shikuo,et al.Rock mass structure digital recognition and hytromechanical parameters characterization of sandstone in fangezhuang coal mine[J].Chinese Journal of Rock Mechanics and Engineering,2009,28(12):2482-2489.
[8]范留明,李宁.基于数码摄影技术的岩体裂隙测量方法初探[J].岩石力学与工程学报,2005,24(5):792-797.Fan Liuming,Li Ning.Study of rock mass joint measurement based on digital photo-grammetry[J].Chinese Journal of Rock Mechanics and Engineering,2005,24(5):792-797.
[9]石根华.岩体稳定分析的几何方法[J].中国科学,1981,9(4):487-495.Shi Genhua.Geometrical approach of rock mass stability analysis[J].Science in China,1981,9(4):487-495.
[10]Shi G H,Goodman R E.The key blocks of unrolled joint traces in developed maps of tunnel walls[J].International Journal for Numerical Analytical Methods in Geomechanics,1989,13(2):131-158.
[11]奥地利Startup公司.Shape Metri X3D系统使用手册[R].沈阳:欧美大地仪器设备中国有限公司,2008.Startup Company from Austrian.Shape Metri X3D service manual[R].Shenyang:Earth Products China Limited,2008.
[12]王述红,杨勇,王洋,等.基于数字摄影测量的开挖空间模型及不稳定块体的快速识别[J].岩石力学与工程学报,2010,29(S1):3432-3438.Wang Shuhong,Yang Yong,Wang Yang,et al.Spatial modeling and quick identification of unstable rock blocks based on a digital photogrammetry[J].Chinese Journal of Rock Mechanics and Engineering,2010,29(S1):3432-3438.
[13]王述红,杨勇,郭牡丹,等.岩体隧道施工诱发的关键块体三维模型及其验证[J].东北大学学报:自然科学版,2009,30(6):877-880,912.Wang Shuhong,Yang Yong,Guo Mudan,et al.Three-dimensional model for key block due to rock tunnel construction and its computerized verification[J].Journal of Northeastern University(Natural Science),2009,30(6):877-880,912.
[14]Wang Shuhong,Ni Pengpeng,Guo Mudan.Spatial characterization of joint planes and stability analysis of tunnel blocks[J].Tunnelling and Underground Space Technology,2013,38:357-367.
[15]王述红,杨勇,王洋,等.裂隙岩体隧道施工关键块体识别数值方法[J].地下空间与工程学报,2009,5(5):976-979.Wang Shuhong,Yang Yong,Wang Yang,et al.Numerical method of key block identification for jointed rock tunnel construction[J].Chinese Journal of Underground Space and Engineering,2009,5(5):976-979.
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