基于模糊聚类和Hoek-Brown准则的裂隙岩体力学参数计算
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摘要
节理裂隙边坡岩体稳定性研究首先需要确定可靠的岩体力学参数。通过提依尔金矿露天边坡节理裂隙测量数据的统计分析,运用模糊等价聚类和模糊软划分聚类分别求得节理裂隙的最佳分组和中心产状。依据模糊聚类的结果,利用Hoek-Brown法确定出裂隙边坡岩体的力学参数。提依尔金矿露天边坡岩体参数的计算过程表明采用模糊聚类分析结合Hoek-Brown准则来确定岩体参数的方法在工程实践中简便易行、实用性强,对相似矿山的边坡稳定性分析工作具有借鉴意义。
In the stability analysis of the slope consisted of fissured rock mass,it is necessary to determine the mechanical parameters of fissured rock mass firstly.After statistical analysis of measurements of cleavage and cranny in Tiyier open-pit golden mine,the optimal groups and their center occurrence of the measurements can be calculated from hard clustering analysis and soft clustering analysis.According to the results of fuzzy clustering,the mechanical parameters of fissured rock mass can be determined by HoekBrown failure criterion.The process of determining the parameters of slope fissured rock mass of Tiyier golden mine reveals that the combination of fuzzy clustering and Hoek-Brown failure criterion is simple and practical in the engineering practice,which is instructive for slope stability analysis of similar mines.
In the stability analysis of the slope consisted of fissured rock mass,it is necessary to determine the mechanical parameters of fissured rock mass firstly.After statistical analysis of measurements of cleavage and cranny in Tiyier open-pit golden mine,the optimal groups and their center occurrence of the measurements can be calculated from hard clustering analysis and soft clustering analysis.According to the results of fuzzy clustering,the mechanical parameters of fissured rock mass can be determined by HoekBrown failure criterion.The process of determining the parameters of slope fissured rock mass of Tiyier golden mine reveals that the combination of fuzzy clustering and Hoek-Brown failure criterion is simple and practical in the engineering practice,which is instructive for slope stability analysis of similar mines.
引文
[1]杨帆,侯克鹏,谢永利.岩质高边坡岩体力学参数确定及稳定性研究[J].西安建筑科技大学学报:自然科学版,2011,43(6):845-853.YANG Fan,HOU Kepeng,XIE Yongli.Research on methods to determine mechanical parameters and stability of rock mass from high rock slope[J].Journal of Xi'an University of Architecture&Technology:Natural Science Edition,2011,43(6):845-853.
[2]田景元,刘汉龙,高玉峰,等.节理面按产状的模糊聚类及其优势方位的确定[J].华东地质学院学报,2002,25(2):97-99.TIAN Jingyuan,LIU Hanlong,GAO Yufeng,et al.Fuzzy classification of joints by occurrence and calculation of joints'dominant orientation[J].Journal of East China Geological Institute,2002,25(2):97-99.
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[5]胡盛明,胡修文.基于量化的GSI系统和Hoek-Brown准则的岩体力学参数的估计[J].岩土力学,2011,32(3):862-866.HU Shengming,HU Xiuwen.Estimation of rock mass parameters based on quantitative GSI system and Hoek-Brown criterion[J].Rock and Soil Mechanics,2011,32(3):862-866.
[6]卢书强,许模.基于GSI系统的岩体变形模量取值及应用[J].岩石力学与工程学报,2009,28(S1):2737-2742.LU Shuqiang,XU Mo.Determination and application of modulus of deformation of rock masses based on GSI system[J].Chinese Journal of Rock Mechanics and Engineering,2009,28(S1):2737-2742.
[7] SONMEZ Harun,ULUSAY Resat.A discussion on the Hoek-Brown failure criterion and suggested modifications to the criterion verified by slope stability case studies[J].Yerbilimleri,2002,26:77-99.
[8] HOEK E,BROWN E T.Empirical strength criterion for rock masses[J].Journal of the Geotechnical Engineering Division,1980,106(9):1013-1035.
[9]申艳军,徐光黎,张璐,等.基于Hoek-Brown准则的开挖扰动引起围岩变形特性研究[J].岩石力学与工程学报,2010,29(7):1355-1362.SHEN Yanjun,XU Guangli,ZHANG Lu,et al.Research on characteristics of rock deformation caused by excavation disdurbance based on Hoek-Brown criterion[J].Chinese Journal of Rock Mechanics and Engineering,2010,29(7):1355-1362.
[10]王永龙,孙玉宁,翟新献,等.基于GSI原理瓦斯抽采钻孔收缩比评估方法及其应用[J].中国安全生产科学技术,2015,11(2):105-111.WANG Yonglong,SUN Yuning,ZHAI Xinxian,et al.The evaluation method and application of gas drainage borehole shrinkage ratio based on GSI principle[J].Journal of Safety Science and Technology,2015,11(2):105-111.
[11] HOEK E,DIEDERICHS M S.Empirical estimation of rock mass modulus[J].International Journal of Rock Mechanics&Mining Sciences,2006,43(2):203-215.
[2]田景元,刘汉龙,高玉峰,等.节理面按产状的模糊聚类及其优势方位的确定[J].华东地质学院学报,2002,25(2):97-99.TIAN Jingyuan,LIU Hanlong,GAO Yufeng,et al.Fuzzy classification of joints by occurrence and calculation of joints'dominant orientation[J].Journal of East China Geological Institute,2002,25(2):97-99.
[3] SHANLEY R J,MAHTAB M A.Delineation and analysis of clusters in orientation data[J].Mathematical Geology,1976,8(3):9-23.
[4]周玉新,周志芳,孙其国.岩体结构面产状的综合模糊聚类分析[J].岩石力学与工程学报,2005,24(13):2283-2287.ZHOU Yuxin,ZHOU Zhifang,SUN Qiguo.Synthetical fuzzy clustering analysis for joints occurrence of rock mass[J].Chinese Journal of Rock Mechanics and Engineering,2005,24(13):2283-2287.
[5]胡盛明,胡修文.基于量化的GSI系统和Hoek-Brown准则的岩体力学参数的估计[J].岩土力学,2011,32(3):862-866.HU Shengming,HU Xiuwen.Estimation of rock mass parameters based on quantitative GSI system and Hoek-Brown criterion[J].Rock and Soil Mechanics,2011,32(3):862-866.
[6]卢书强,许模.基于GSI系统的岩体变形模量取值及应用[J].岩石力学与工程学报,2009,28(S1):2737-2742.LU Shuqiang,XU Mo.Determination and application of modulus of deformation of rock masses based on GSI system[J].Chinese Journal of Rock Mechanics and Engineering,2009,28(S1):2737-2742.
[7] SONMEZ Harun,ULUSAY Resat.A discussion on the Hoek-Brown failure criterion and suggested modifications to the criterion verified by slope stability case studies[J].Yerbilimleri,2002,26:77-99.
[8] HOEK E,BROWN E T.Empirical strength criterion for rock masses[J].Journal of the Geotechnical Engineering Division,1980,106(9):1013-1035.
[9]申艳军,徐光黎,张璐,等.基于Hoek-Brown准则的开挖扰动引起围岩变形特性研究[J].岩石力学与工程学报,2010,29(7):1355-1362.SHEN Yanjun,XU Guangli,ZHANG Lu,et al.Research on characteristics of rock deformation caused by excavation disdurbance based on Hoek-Brown criterion[J].Chinese Journal of Rock Mechanics and Engineering,2010,29(7):1355-1362.
[10]王永龙,孙玉宁,翟新献,等.基于GSI原理瓦斯抽采钻孔收缩比评估方法及其应用[J].中国安全生产科学技术,2015,11(2):105-111.WANG Yonglong,SUN Yuning,ZHAI Xinxian,et al.The evaluation method and application of gas drainage borehole shrinkage ratio based on GSI principle[J].Journal of Safety Science and Technology,2015,11(2):105-111.
[11] HOEK E,DIEDERICHS M S.Empirical estimation of rock mass modulus[J].International Journal of Rock Mechanics&Mining Sciences,2006,43(2):203-215.