陕西山阳特大型滑坡视向滑移-溃屈破坏力学分析
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摘要
陕西山阳滑坡为典型的陡倾层状斜向岩质斜坡,其破坏模式不同于常见的顺倾层状岩质斜坡溃屈破坏模式,也不同于斜倾层状山体的视向滑移-剪切破坏模式,更不同于陡倾顺层岩质斜坡的倾倒、倾倒-滑移破坏模式,属于视向滑移-溃屈破坏模式。在实地调查的基础上,从斜坡结构特征、结构面组合特征以及剪出口特征分析了滑坡的破坏模式,进而分析了山阳滑坡的视向滑移-溃屈破坏机制;以梁板理论、层状板裂结构岩体弯曲-溃屈破坏的力学模型为基础,结合斜倾层状岩质滑坡的视向滑动机制研究,建立了基于斜坡自重、地下水静水压力、侧向摩阻力以及斜坡岩体厚度变化作用下的陡倾层状斜向岩质斜坡视向滑移-溃屈破坏力学模型,进行力学分析,推导了溃屈段长度条件方程,并以山阳滑坡为例验证了长度条件方程的正确性。
As a typical steep stratified oblique rock slope, Shanyang rockslide in Shaanxi Province is different from buckling failure of inclination-paralleled rockslide, apparent dip slide of inclined bedding rockslide and, what is more, toppling and sliding of steeply inclined rockslide,and belongs to the apparent dip creep-buckling. On the basis of field investigation and analysis of characteristics of structure planes, structure of sliding rockmass and shear outlet, the authors analyzed the failure mode in combination with the buckling mechanism. The authors established and analyzed the buckling mechanical model of steep stratified oblique rock slope under gravity, hydrostatic pressure of groundwater, lateral friction and rockmass depth of the rockslide according to the beam plate theory and mechanical model of bending-buckling failure of slab rent structure rockmass, as well as the condition equation of buckling length. The validity of the condition equation was verified.
As a typical steep stratified oblique rock slope, Shanyang rockslide in Shaanxi Province is different from buckling failure of inclination-paralleled rockslide, apparent dip slide of inclined bedding rockslide and, what is more, toppling and sliding of steeply inclined rockslide,and belongs to the apparent dip creep-buckling. On the basis of field investigation and analysis of characteristics of structure planes, structure of sliding rockmass and shear outlet, the authors analyzed the failure mode in combination with the buckling mechanism. The authors established and analyzed the buckling mechanical model of steep stratified oblique rock slope under gravity, hydrostatic pressure of groundwater, lateral friction and rockmass depth of the rockslide according to the beam plate theory and mechanical model of bending-buckling failure of slab rent structure rockmass, as well as the condition equation of buckling length. The validity of the condition equation was verified.
引文
Cavers D S.1981.Simple methods to analyze buckling of rock slopes[J].Rock Mechanics,14(2):87-104.
Du Yingqiong,Ren Guangming,Du Fei.2014.Physical simulation of consequent slope buckling deformation and its influencing factor sensitivity analysis[J].Journal of Sichuan University of Science&Engineering(Natural Science Edition),27(6):68-71(in Chinese with English abstract).
Feng Zhen,Yin Yueping,Li Bin.2012.Mechanism analysis of apparent dip landslide of Jiweishan in Wulong,Chongqing[J].Rock and Soil Mechanics:33(9):2704-2712(in Chinese with English abstract).
Goodman R E,Bray J W.1976.Toppling of rock slopes[C]//Proceedings of ASCE Specialty Conference,Rock Engineering for Foundations and Slopes.Boulder:201-234.
и.А.Турчанинов.1981.Rock Mechanics Foundation of Mine[M].Liu Tingcheng et al.(translator).Beijing:China Coal Industry Publishing House(in Chinese).
Kutte H K.Müller L.1981.Rock mechanics[M].Li Shiping,et al.(translator).Beijing:China Coal Industry Publishing House(in Chinese).
Li Bin,Wang Guozhang,Feng Zhen,Wang Wenpei.2015.Limit quilibrium and stability analysis of steep stratified rock slope[J].Chinese Journal of Geotechnical Engineering,37(5):839-846(in Chinese with English abstract).
Li Shusen,Ren Guangming,Zuo Sansheng.1995.Mechanical analysis of instability mechanism of consequent slope in bedded rockmass[J].Journal of Geological Hazards and Environment Preservation,6(2):24-29((in Chinese with English abstract).
Li Shusen,Zhu Donglin,Fu Wenxi.2000.Association analysis of sliding plane feature of outburst landslide and strength parameters of sliding zone soil[J].Journal of Mountain Science,18(supp.):34-38(in Chinese with English abstract).
Liu Chuanzheng,Shi Tao,Zhang Mingxia.1995.On the mechanism of deforming-cracking on the segment of cracks T8-T12 of Lianzi cliff dangerous rock body[J].Journal of Engineering Geology,3(2):29-41(in Chinese with English abstract).
Liu Chunxiang,Zhu Yuanwu.2014.Buckling failure mode of inclination-paralleled rock slopes[J].Journal of Geological Hazards and Environment Preservation,25(1):82-86(in Chinese with English abstract).
Liu Yunpeng.2017.Slip-bending model instability mechanism and calculation methods comparison of slab-rent structure slope[J].Chinese Journal of Underground Space and Engineering,13(Suppl.):943-954(in Chinese with English abstract).
Ni Guorong,Ye Meixin.1987.Mechanical analysis of rock mass with the“plate fracture”structure[J].Chinese Journal of Geotechnical Engineering,9(1):99-108(in Chinese with English abstract).
Pan Ruilin,Li Bingsheng,Jiang Jueguang.1990.Research on the buckling failure of the slab-rent structure rock bedding slopes[J].Journal of Southwest Jiaotong University,(3):82-88((in Chinese with English abstract).
Ren Guangming,Li Shusen,Nie Dexin.1998.The physical simulation and mechanical analysis on landslide's formation mechanism on consequent slope[J].Mountain Research,16(3):182-187(in Chinese with English abstract).
Ren Guangming,Xia Min,Li Guo.2009.Study on toppling deformation and failure characteristics of steep bedding rock slope[J].Chinese Journal of Rock Mechanics and Engineering,28(Supp.1):3193-3200(in Chinese with English abstract).
Sun Guangzhong.1988.Structure mechanics of rock mass[M].Beijing:Science Press((in Chinese).
Sun Guangzhong,Zhang Wenbin.1985.A commonly-sighted rock mass structure-slab-rent structure and its mechanical model[J].Chinese Journal of Geology,(3):275-282(in Chinese with English abstract).
Tang Minggao,Ma Xu,Zhang Tingting.2016.Early recognition and mechanism of creep-buckling of bedding slope[J].Journal of Engineering Geology,24(3):442-450(in Chinese with English abstract).
Yin Yueping.2010.Mechanism of apparent dip slide of inclined bedding rockslide--a case study of Jiweishan rockslide in Wulong,hongqing[J].Chinese Journal of Rock Mechanics and Engineering,19(2):217-226(in Chinese with English abstract).
Zhu Hanya,Ma Meiling,Shang Yuequan.2004.Analysis of buckling failure of consequent rock slope[J].Journal of Zhejiang University(Engineering Science),38(9):1144-1149(in Chinese with English abstract).
杜应琼,任光明,杜飞.2014.顺层斜坡溃屈变形物理模拟及影响因素敏感性分析[J].四川理工学院学报(自然科学版),27(6):68-71.
冯振,殷跃平,李滨.2012.重庆武隆鸡尾山滑坡视向滑动机制分析[J].岩土力学,33(9):2704-2712.
и.А.屠尔昌宁诺夫.1981.矿山岩石力学基础[M].刘听成等译.北京:煤炭工业出版社.
Kutte H K,米勒L(主编).1981.岩石力学[M].李世平等译.北京:煤炭工业出版社.
李滨,王国章,冯振,王文沛.2015.陡倾层状岩质斜坡极限平衡稳定分析[J].岩土工程学报,37(5):839-846.
李树森,任光明,左三胜.1995.层状结构岩体顺层斜坡失稳机理的力学分析[J].地质灾害与环境保护,6(2):24-29.
李树森,朱冬林,符文熹.1999.溃屈型滑坡滑动面特征及滑带土强度参数的关联性分析[J].山地学报,10(1):39-41.
刘春香,朱元武.2014.顺倾向层状岩质边坡溃屈破坏分析[J].地质灾害与环境保护,25(1):82-86.
刘传正,施韬,张明霞.1995.链子崖危岩体T8-T12缝段开裂变形机制的研究[J].工程地质学报,3(2):29-41.
刘云鹏.2017.板裂结构边坡滑移-弯曲失稳机制与计算方法对比[J].地下空间与工程学报,13(增刊2):943-954.
倪国荣,叶梅新.1987.“板裂”结构岩体的力学分析法[J].岩土工程学报,9(1):99-108.
潘瑞林,李秉生,蒋爵光.1990.板裂结构岩体顺层边坡溃屈破坏的研究[J].西南交通大学学报,(3):82-88.
汤明高,马旭,张婷婷.2016.顺层斜坡溃屈机制与早期识别研究[J].工程地质学报,24(3):442-450.
孙广忠.1988.岩体结构力学[M].北京:科学出版社.
孙广忠,张文彬.1985.一种常见的岩体结构--板裂结构及其力学模型[J].地质科学,(3):275-282.
任光明,李树森,聂德新.1998.顺层坡滑坡形成机制的物理模拟及力学分析[J].山地研究,16(3):182-187.
任光明,夏敏,李果.2009.陡倾顺层岩质斜坡倾倒变形破坏特征研究[J].岩石力学与工程学报,28(增1):3193-3200.
殷跃平.2010.斜倾厚层山体滑坡视向滑动机制研究--以重庆武隆鸡尾山滑坡为例[J].岩石力学与工程学报,19(2):217-226.
朱晗迓,马美玲,尚岳全.2004.顺倾向层状岩质边坡溃屈破坏分析[J].浙江大学学报(工学版),38(9):1144-1149.
Du Yingqiong,Ren Guangming,Du Fei.2014.Physical simulation of consequent slope buckling deformation and its influencing factor sensitivity analysis[J].Journal of Sichuan University of Science&Engineering(Natural Science Edition),27(6):68-71(in Chinese with English abstract).
Feng Zhen,Yin Yueping,Li Bin.2012.Mechanism analysis of apparent dip landslide of Jiweishan in Wulong,Chongqing[J].Rock and Soil Mechanics:33(9):2704-2712(in Chinese with English abstract).
Goodman R E,Bray J W.1976.Toppling of rock slopes[C]//Proceedings of ASCE Specialty Conference,Rock Engineering for Foundations and Slopes.Boulder:201-234.
и.А.Турчанинов.1981.Rock Mechanics Foundation of Mine[M].Liu Tingcheng et al.(translator).Beijing:China Coal Industry Publishing House(in Chinese).
Kutte H K.Müller L.1981.Rock mechanics[M].Li Shiping,et al.(translator).Beijing:China Coal Industry Publishing House(in Chinese).
Li Bin,Wang Guozhang,Feng Zhen,Wang Wenpei.2015.Limit quilibrium and stability analysis of steep stratified rock slope[J].Chinese Journal of Geotechnical Engineering,37(5):839-846(in Chinese with English abstract).
Li Shusen,Ren Guangming,Zuo Sansheng.1995.Mechanical analysis of instability mechanism of consequent slope in bedded rockmass[J].Journal of Geological Hazards and Environment Preservation,6(2):24-29((in Chinese with English abstract).
Li Shusen,Zhu Donglin,Fu Wenxi.2000.Association analysis of sliding plane feature of outburst landslide and strength parameters of sliding zone soil[J].Journal of Mountain Science,18(supp.):34-38(in Chinese with English abstract).
Liu Chuanzheng,Shi Tao,Zhang Mingxia.1995.On the mechanism of deforming-cracking on the segment of cracks T8-T12 of Lianzi cliff dangerous rock body[J].Journal of Engineering Geology,3(2):29-41(in Chinese with English abstract).
Liu Chunxiang,Zhu Yuanwu.2014.Buckling failure mode of inclination-paralleled rock slopes[J].Journal of Geological Hazards and Environment Preservation,25(1):82-86(in Chinese with English abstract).
Liu Yunpeng.2017.Slip-bending model instability mechanism and calculation methods comparison of slab-rent structure slope[J].Chinese Journal of Underground Space and Engineering,13(Suppl.):943-954(in Chinese with English abstract).
Ni Guorong,Ye Meixin.1987.Mechanical analysis of rock mass with the“plate fracture”structure[J].Chinese Journal of Geotechnical Engineering,9(1):99-108(in Chinese with English abstract).
Pan Ruilin,Li Bingsheng,Jiang Jueguang.1990.Research on the buckling failure of the slab-rent structure rock bedding slopes[J].Journal of Southwest Jiaotong University,(3):82-88((in Chinese with English abstract).
Ren Guangming,Li Shusen,Nie Dexin.1998.The physical simulation and mechanical analysis on landslide's formation mechanism on consequent slope[J].Mountain Research,16(3):182-187(in Chinese with English abstract).
Ren Guangming,Xia Min,Li Guo.2009.Study on toppling deformation and failure characteristics of steep bedding rock slope[J].Chinese Journal of Rock Mechanics and Engineering,28(Supp.1):3193-3200(in Chinese with English abstract).
Sun Guangzhong.1988.Structure mechanics of rock mass[M].Beijing:Science Press((in Chinese).
Sun Guangzhong,Zhang Wenbin.1985.A commonly-sighted rock mass structure-slab-rent structure and its mechanical model[J].Chinese Journal of Geology,(3):275-282(in Chinese with English abstract).
Tang Minggao,Ma Xu,Zhang Tingting.2016.Early recognition and mechanism of creep-buckling of bedding slope[J].Journal of Engineering Geology,24(3):442-450(in Chinese with English abstract).
Yin Yueping.2010.Mechanism of apparent dip slide of inclined bedding rockslide--a case study of Jiweishan rockslide in Wulong,hongqing[J].Chinese Journal of Rock Mechanics and Engineering,19(2):217-226(in Chinese with English abstract).
Zhu Hanya,Ma Meiling,Shang Yuequan.2004.Analysis of buckling failure of consequent rock slope[J].Journal of Zhejiang University(Engineering Science),38(9):1144-1149(in Chinese with English abstract).
杜应琼,任光明,杜飞.2014.顺层斜坡溃屈变形物理模拟及影响因素敏感性分析[J].四川理工学院学报(自然科学版),27(6):68-71.
冯振,殷跃平,李滨.2012.重庆武隆鸡尾山滑坡视向滑动机制分析[J].岩土力学,33(9):2704-2712.
и.А.屠尔昌宁诺夫.1981.矿山岩石力学基础[M].刘听成等译.北京:煤炭工业出版社.
Kutte H K,米勒L(主编).1981.岩石力学[M].李世平等译.北京:煤炭工业出版社.
李滨,王国章,冯振,王文沛.2015.陡倾层状岩质斜坡极限平衡稳定分析[J].岩土工程学报,37(5):839-846.
李树森,任光明,左三胜.1995.层状结构岩体顺层斜坡失稳机理的力学分析[J].地质灾害与环境保护,6(2):24-29.
李树森,朱冬林,符文熹.1999.溃屈型滑坡滑动面特征及滑带土强度参数的关联性分析[J].山地学报,10(1):39-41.
刘春香,朱元武.2014.顺倾向层状岩质边坡溃屈破坏分析[J].地质灾害与环境保护,25(1):82-86.
刘传正,施韬,张明霞.1995.链子崖危岩体T8-T12缝段开裂变形机制的研究[J].工程地质学报,3(2):29-41.
刘云鹏.2017.板裂结构边坡滑移-弯曲失稳机制与计算方法对比[J].地下空间与工程学报,13(增刊2):943-954.
倪国荣,叶梅新.1987.“板裂”结构岩体的力学分析法[J].岩土工程学报,9(1):99-108.
潘瑞林,李秉生,蒋爵光.1990.板裂结构岩体顺层边坡溃屈破坏的研究[J].西南交通大学学报,(3):82-88.
汤明高,马旭,张婷婷.2016.顺层斜坡溃屈机制与早期识别研究[J].工程地质学报,24(3):442-450.
孙广忠.1988.岩体结构力学[M].北京:科学出版社.
孙广忠,张文彬.1985.一种常见的岩体结构--板裂结构及其力学模型[J].地质科学,(3):275-282.
任光明,李树森,聂德新.1998.顺层坡滑坡形成机制的物理模拟及力学分析[J].山地研究,16(3):182-187.
任光明,夏敏,李果.2009.陡倾顺层岩质斜坡倾倒变形破坏特征研究[J].岩石力学与工程学报,28(增1):3193-3200.
殷跃平.2010.斜倾厚层山体滑坡视向滑动机制研究--以重庆武隆鸡尾山滑坡为例[J].岩石力学与工程学报,19(2):217-226.
朱晗迓,马美玲,尚岳全.2004.顺倾向层状岩质边坡溃屈破坏分析[J].浙江大学学报(工学版),38(9):1144-1149.