节理岩体地下洞室随机块体稳定性分析研究
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摘要
客观存在的不确定性使得节理岩体工程不可避免地存在风险,概率分析是进行节理岩体工程风险分析评价的有效方法和手段。本文考虑节理岩体的随机特性,在关键块体理论中应用概率分析方法并结合具体工程对岩体地下洞室随机块体进行稳定性分析和预测,统计分析节理裂隙的产状特征,搜索并计算随机块体的安全性并反演得到所需的锚固力,采用随机方法分析评价系统锚杆和衬砌对关键块体的支护效果。研究方法及成果具有创新性,可为类似岩体工程的分析研究提供借鉴。
Objective existence of uncertain factors cause inevitably risks in jointed rock engineering. The probabilistic theory is the effective method and means to analysis and evaluation risks of jointed rock mass engineering. Considering the random characteristics of jointed rock mass,the probability method is applied in key block theory. Stability analysis and forecasting was done for random blocks with a specific underground cavern rock engineering. Characteristics of joint sets,such as trends,dips,etc. were statistics. Then using the method put forward in the paper,the safety of random blocks was gained. Also,the anchoring force can be got by inverse calculating.Finally,the effect of the systematic bolt,also the supporting effective,were evaluated. Research methods and achievements has innovation,and can be used as a reference for the similar engineering of rock mass engineering.
Objective existence of uncertain factors cause inevitably risks in jointed rock engineering. The probabilistic theory is the effective method and means to analysis and evaluation risks of jointed rock mass engineering. Considering the random characteristics of jointed rock mass,the probability method is applied in key block theory. Stability analysis and forecasting was done for random blocks with a specific underground cavern rock engineering. Characteristics of joint sets,such as trends,dips,etc. were statistics. Then using the method put forward in the paper,the safety of random blocks was gained. Also,the anchoring force can be got by inverse calculating.Finally,the effect of the systematic bolt,also the supporting effective,were evaluated. Research methods and achievements has innovation,and can be used as a reference for the similar engineering of rock mass engineering.
引文
[1]石根华.岩体稳定分析的赤平投影方法[J].中国科学,1977(3):260-271.(Shi Genhua. Stereographic projection methods on rock block stability analysis[J].Science in China,1977(3):260-271.(in Chinese))
[2]张奇华,邬爱清,石根华.关键块体理论在百色水利枢纽地下厂房岩体稳定性分析中的应用[J].岩石力学与工程学报,2004,23(15):2609–2614.(Zhang Qihua,Wu Aiaing,Shi Genhua. Application of key block theory to analysis rock stability for underground plant in Baise hydraulic project[J]. Chinese Journal of Rock Mechanics and Engineer,2004,23(15):2609-2614.(in Chinese))
[3]盛谦,黄正加,邬爱清.三峡工程地下厂房随机块体稳定性分析[J].岩土力学,2002,23(6):747-750.(Sheng Qian,Huang Zhengjia,Wu Aiqing. Stability analysis for random key block of underground power house of Three Gorges Project[J]. Rock and Soil Mechanics,2002,23(6):747-750.(in Chinese))
[4]张子新,孙钧.分形块体理论及其在三峡高边坡工程中的应用[J].同济大学学报(自然科学版),1996,24(5):552-557.(Zhang Zixin, Sun Jun.Fractal block theory and its application to the high slope of the Three Gorges Project of the Yangtze River[J].Journal of Tongji University,1996,24(5):552-557.(in Chinese))
[5]张瑞新,李泽荃,赵红泽,等.节理岩体关键块体稳定的概率分析[J].岩土力学,2014,35(5):1399-1405.(Zhang Ruixin,Li Zequan,Zhao Hongze,et al.A probabilistic analysis of key block stability in jointed rock masses[J]. Rock and Soil Mechanics,2014,35(5):1399-1405.(in Chinese))
[6]毛海和,夏才初,张子新,等.块体理论赤平解析法在龙滩水电站地下厂房洞室群稳定分中的应用[J].岩石力学与工程学报,2005,24(8):1308-1314.(Mao Haihe, Xia Caichu, Zhang Zixin, et al.Application of stereo-analytical method for block theory to the stability of Longtan hydropower station underground power-house[J]. Chinese Journal of Rock Mechanics and Engineering,2005,24(8):1308-1314.(in Chinese))
[7] Shi G H, Goodman R E. Block Throry and its application to rock eenineering[M]. New York:Prentice Hall,1985.
[8] Vladimír Greif,Ján Vˇlcko. Key block theory application for rock slope stability analysis in the foundations of medieval castles in Slovakia[J]. Journal of Cultural Heritage,2013,14(4):359-364.
[9]朱晟,张发明,庞正江,等.西龙池抽水蓄能电站地下厂房随机块体稳定性分析[J].岩石力学与工程学报,2005,24(14):2513-2517.(Zhu Sheng,Zhang Faming,Pang Zhengjiang,et al. Stability analysis of random block rock of underground power houses of Xi Long Chi. Pumped storage plant[J]. Chinese Journal of Rock Mechanics and Engineering, 2005, 24(14):2513-2517.(in Chinese))
[10]郝杰,侍克斌,陈功民,等.有限长迹线块体理论及其在围岩块体滑落概率分析中的应用[J].岩石力学与工程学报,2014,33(7):1471-1478.(Hao Jie,Shi Kebin,Chen Gongmin,et al. Block theory of limited trace lengths and its application to probability analysis of block sliding of surrounding rock[J]. Chinese Journal of Rock Mechanics and Engineering,2014,33(7):1471-1478.(in Chinese))
[11]张清,莫勖涛.利用关键块体理论估计岩石隧道的塌方部位[J].岩石力学与工程学,1989,8(2):163-168.(Zhang Qing, Mo Xuntao. An estimation of removable block positions in rock tunnel by key block theory[J]. Chinese Journal of Rock Mechanics and Engineering,1989,8(2):163-168.(in Chinese))
[12]黄正加,邬爱清,盛谦.块体理论在三峡工程中的应用[J].岩石力学与工程学报,2001,20(5):648-652.(Huang Zhengjia,Wu Aiqing,Sheng Qian. Usage of block theory in the gorges projects[J]. Chinese Journal of Rock Mechanics and Engineering,2001,20(5):648-652.(in Chinese))
[13]杨圣奇.岩石流变力学特性的研究及其工程应用[D].南京:河海大学,2006.(Yang Shengqi.Study on rheological mechanical properties of rockandits engineering applications[D]. Nanjing:Hohai University,2006.(in Chinese))
[14]ˇBartos documentation of hardly accessible historical monuments by using of photogrammetry and laser scanner techniques[J]. Geoinformatics,2011(6):40-47.
[15]张玉军,朱维申.三峡工程船闸高边坡锚固方案的平面有限元计算[J].岩土工程学报,1997,19(1):70-74.(Zhang Yujun, Zhu Weishen. 2D FEM calculation on anchoring scheme of navigation lock’s high bank in TGP[J]. Chinese Journal of Geotechnical Engineering,1997,19(1):70-74.(in Chinese)).
[16]陈孝湘,夏才初,卞跃威,等.特大跨度连拱隧道施工工序的关键块体理论优化分析[J].岩石力学与工程学报,2011,30(1):2979-2985.(Chen Xiaoxiang,Xia Caichu,Bian Yuewei,et al. Optimization analysis by key block theory for construction procedure of extra large-span double-arch tunnel[J]. Chinese Journal of Rock Mechanics and Engineering,2011,30(1):2979-2985.(in Chinese))
[17] Fu G Y,Ma G W. Extended key block analysis for support design of rock mass[J]. Tunnelling and Underground Space Technology,2014,14:1-13.
[18]中华人民共和国行业标准编写组.锚杆喷射混凝土支护技术规范(GB50086—2001)[S].北京:中国计划出版社, 2001.(The Professional Standards Compilation Group of People's Republic of China.Specifications for bolt-shotcrete support(GB50086—2001)[S]. Beijing:China Planning Press,2001.(in Chinese)).
[19] González-Palacio C,Menéndez-Díaz A,lvarez-Vigil E,et al. Identification of non-pyramidal key blocks in jointed rock masses for tunnel excavation[J]. Computers and Geotechnics,2005,32(3):179-200.
[20]朱维申,李术才,陈卫忠.节理岩体破坏机制和锚固效应及工程应用[M].北京:科学出版社,2002.(Zhu Weishen,Li Shucai,Chen Weizhong. Failure mechanism and anchorage effect of jointed rock mass and engineering application[M]. Beijing:Science Press,2002.(in Chinese))
[2]张奇华,邬爱清,石根华.关键块体理论在百色水利枢纽地下厂房岩体稳定性分析中的应用[J].岩石力学与工程学报,2004,23(15):2609–2614.(Zhang Qihua,Wu Aiaing,Shi Genhua. Application of key block theory to analysis rock stability for underground plant in Baise hydraulic project[J]. Chinese Journal of Rock Mechanics and Engineer,2004,23(15):2609-2614.(in Chinese))
[3]盛谦,黄正加,邬爱清.三峡工程地下厂房随机块体稳定性分析[J].岩土力学,2002,23(6):747-750.(Sheng Qian,Huang Zhengjia,Wu Aiqing. Stability analysis for random key block of underground power house of Three Gorges Project[J]. Rock and Soil Mechanics,2002,23(6):747-750.(in Chinese))
[4]张子新,孙钧.分形块体理论及其在三峡高边坡工程中的应用[J].同济大学学报(自然科学版),1996,24(5):552-557.(Zhang Zixin, Sun Jun.Fractal block theory and its application to the high slope of the Three Gorges Project of the Yangtze River[J].Journal of Tongji University,1996,24(5):552-557.(in Chinese))
[5]张瑞新,李泽荃,赵红泽,等.节理岩体关键块体稳定的概率分析[J].岩土力学,2014,35(5):1399-1405.(Zhang Ruixin,Li Zequan,Zhao Hongze,et al.A probabilistic analysis of key block stability in jointed rock masses[J]. Rock and Soil Mechanics,2014,35(5):1399-1405.(in Chinese))
[6]毛海和,夏才初,张子新,等.块体理论赤平解析法在龙滩水电站地下厂房洞室群稳定分中的应用[J].岩石力学与工程学报,2005,24(8):1308-1314.(Mao Haihe, Xia Caichu, Zhang Zixin, et al.Application of stereo-analytical method for block theory to the stability of Longtan hydropower station underground power-house[J]. Chinese Journal of Rock Mechanics and Engineering,2005,24(8):1308-1314.(in Chinese))
[7] Shi G H, Goodman R E. Block Throry and its application to rock eenineering[M]. New York:Prentice Hall,1985.
[8] Vladimír Greif,Ján Vˇlcko. Key block theory application for rock slope stability analysis in the foundations of medieval castles in Slovakia[J]. Journal of Cultural Heritage,2013,14(4):359-364.
[9]朱晟,张发明,庞正江,等.西龙池抽水蓄能电站地下厂房随机块体稳定性分析[J].岩石力学与工程学报,2005,24(14):2513-2517.(Zhu Sheng,Zhang Faming,Pang Zhengjiang,et al. Stability analysis of random block rock of underground power houses of Xi Long Chi. Pumped storage plant[J]. Chinese Journal of Rock Mechanics and Engineering, 2005, 24(14):2513-2517.(in Chinese))
[10]郝杰,侍克斌,陈功民,等.有限长迹线块体理论及其在围岩块体滑落概率分析中的应用[J].岩石力学与工程学报,2014,33(7):1471-1478.(Hao Jie,Shi Kebin,Chen Gongmin,et al. Block theory of limited trace lengths and its application to probability analysis of block sliding of surrounding rock[J]. Chinese Journal of Rock Mechanics and Engineering,2014,33(7):1471-1478.(in Chinese))
[11]张清,莫勖涛.利用关键块体理论估计岩石隧道的塌方部位[J].岩石力学与工程学,1989,8(2):163-168.(Zhang Qing, Mo Xuntao. An estimation of removable block positions in rock tunnel by key block theory[J]. Chinese Journal of Rock Mechanics and Engineering,1989,8(2):163-168.(in Chinese))
[12]黄正加,邬爱清,盛谦.块体理论在三峡工程中的应用[J].岩石力学与工程学报,2001,20(5):648-652.(Huang Zhengjia,Wu Aiqing,Sheng Qian. Usage of block theory in the gorges projects[J]. Chinese Journal of Rock Mechanics and Engineering,2001,20(5):648-652.(in Chinese))
[13]杨圣奇.岩石流变力学特性的研究及其工程应用[D].南京:河海大学,2006.(Yang Shengqi.Study on rheological mechanical properties of rockandits engineering applications[D]. Nanjing:Hohai University,2006.(in Chinese))
[14]ˇBartos documentation of hardly accessible historical monuments by using of photogrammetry and laser scanner techniques[J]. Geoinformatics,2011(6):40-47.
[15]张玉军,朱维申.三峡工程船闸高边坡锚固方案的平面有限元计算[J].岩土工程学报,1997,19(1):70-74.(Zhang Yujun, Zhu Weishen. 2D FEM calculation on anchoring scheme of navigation lock’s high bank in TGP[J]. Chinese Journal of Geotechnical Engineering,1997,19(1):70-74.(in Chinese)).
[16]陈孝湘,夏才初,卞跃威,等.特大跨度连拱隧道施工工序的关键块体理论优化分析[J].岩石力学与工程学报,2011,30(1):2979-2985.(Chen Xiaoxiang,Xia Caichu,Bian Yuewei,et al. Optimization analysis by key block theory for construction procedure of extra large-span double-arch tunnel[J]. Chinese Journal of Rock Mechanics and Engineering,2011,30(1):2979-2985.(in Chinese))
[17] Fu G Y,Ma G W. Extended key block analysis for support design of rock mass[J]. Tunnelling and Underground Space Technology,2014,14:1-13.
[18]中华人民共和国行业标准编写组.锚杆喷射混凝土支护技术规范(GB50086—2001)[S].北京:中国计划出版社, 2001.(The Professional Standards Compilation Group of People's Republic of China.Specifications for bolt-shotcrete support(GB50086—2001)[S]. Beijing:China Planning Press,2001.(in Chinese)).
[19] González-Palacio C,Menéndez-Díaz A,lvarez-Vigil E,et al. Identification of non-pyramidal key blocks in jointed rock masses for tunnel excavation[J]. Computers and Geotechnics,2005,32(3):179-200.
[20]朱维申,李术才,陈卫忠.节理岩体破坏机制和锚固效应及工程应用[M].北京:科学出版社,2002.(Zhu Weishen,Li Shucai,Chen Weizhong. Failure mechanism and anchorage effect of jointed rock mass and engineering application[M]. Beijing:Science Press,2002.(in Chinese))
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