地震导致山体变形破裂机制地质力学模拟试验研究
|
摘要
地震导致山体变形破裂是一个复杂的演化过程,文中通过一些典型实例的地质分析,总结归纳了高地震烈度区山体变形破裂失稳有一定代表性的倾外层状体斜坡滑坡型、高陡块(层)状体斜坡崩塌型、软弱基座体斜坡滑坡型等3种典型性地质力学模式。自主创新研制、设计、探索了一套振动条件下地质力学模拟试验的设备模型和方法,并对3种典型性地质力学模型进行机制模拟试验。通过变形破裂演化过程模拟再现试验,从中揭示出一些振动条件下变形破裂的典型迹象和重要证据,充分再现了典型地震失稳机制的形成条件、相关性因素以及演化规律,为进一步研究分析提供科学可靠的试验数据和证据。
The deformation fracture of mountains caused by earthquake is a complicated evolved process.In this paper,three typical geomechanics modes are summarized and concluded,i.e.the outer-inclining bedded landslide model,the high-steep block(layer)bedded slope collapsing model and the weak base landslide model,which are representative for the deformation fracture and instability of mountains in areas with high earthquake intensity.We have also indigenously developed,designed and explored a set of geomechanics modeling test equipment,models and techniques under vibration to conduct the mechanism modeling test of the three typical geomechanics models,concepts and models.Through the modeling reproduction test of the evolved process of deformation fracture,typical phenomena and important evidence of deformation fracture under vibration are shown and formation conditions,relevant factors and evolvement principles of typical earthquake instability mechanism are presented to offer scientific and reliable test data and evidences for further research and analysis.
The deformation fracture of mountains caused by earthquake is a complicated evolved process.In this paper,three typical geomechanics modes are summarized and concluded,i.e.the outer-inclining bedded landslide model,the high-steep block(layer)bedded slope collapsing model and the weak base landslide model,which are representative for the deformation fracture and instability of mountains in areas with high earthquake intensity.We have also indigenously developed,designed and explored a set of geomechanics modeling test equipment,models and techniques under vibration to conduct the mechanism modeling test of the three typical geomechanics models,concepts and models.Through the modeling reproduction test of the evolved process of deformation fracture,typical phenomena and important evidence of deformation fracture under vibration are shown and formation conditions,relevant factors and evolvement principles of typical earthquake instability mechanism are presented to offer scientific and reliable test data and evidences for further research and analysis.
引文
[1]Zhang Z Y,Wang S T,Wang L S.Engineering Geology A-nalysis Principle[M].Beijing:Geological Publishing House,1994:300-360(in Chinese).
[2]Wang L S,Yang L Z,Li T B,et al.Earthquake and land-slide in Diexi Jiaochang Minjiang River,Sichuan andthe envi-ronmental protection[J].Geological Disaster and Environ-mental Protection,2000,11(3):195-199(in Chinese).
[3]Xu X N.High Earthquake Intensity Area Sloping Distortion Destruction Mechanismand Preventing and Controlling Coun-termeasure Research[D].Chengdu:Chengdu University of Technology,2002,6:40-43(in Chinese).
[4]Xu X N,Wang L S.Slope distortion destruction district characteristic of Diexi Earthquake Zone in upstream of Min-jiang River and the origin mechanismanalysis[J].Engineer-ing Geology Journal,2005,13(1):68-75(in Chinese).
[5]Men Y M,Peng J B,Li X C,et al.Research on vibration testing of models for dynamic stability of rock slope withlay-ered structures[J].World Earthquake Engineering,2004,20(4):131-136(in Chinese).
[6]Wang Y Z,Qi W,Men Y M,et al.Big Willow Tree Dam rock mass destruction mechanismanalysis[J].Coal Geology&Exploration,2004,32(6):48-51(in Chinese).
[7]Liang Q G,Han WF,Ma R Y,et al.Physical analogue re-search about bedded rock mass destruction under the strong seismic motion function[J].Soil and Rock Mechanics,2005,26(8):1307-1311(in Chinese).
[8]Lin J S,Whit man R.Earthquake induced displacements of sliding blocks[J].Journal of Geotechnical Engineering,1986,112(1):44-59.
[9]Ausilio E,Conte E,Dente G.Seismic stability analysis of re-inforced slopes[J].Soil Dynamics and Earthquake Engineer-ing,2000,19(3):159-172.
[10]Ling HI,Cheng A D.Rock sliding induced by seismic force[J].International Journal of Rock Mechanics and Mining Sci-ences,1997,34(6):1021-1029.
[11]Newmark N M.Effects of earthquakes on dams and embank-ments[J].Geotechnique,1965,15(2):139-160.
[1]张倬元,王士天,王兰生.工程地质分析原理[M].北京:地质出版社,1994:300-360.
[2]王兰生,杨立铮,李天斌,等.四川岷江叠溪较场地震滑坡及环境保护[J].地质灾害与环境保护,2000,11(3):195-199.
[3]许向宁.高地震烈度区斜坡变形破坏机制与防治对策研究[D].成都:成都理工大学,2002:40-43.
[4]许向宁,王兰生.岷江上游叠溪地震区斜坡变形破坏分区特征及其成因机制分析[J].工程地质学报,2005,13(1):68-75.
[5]门玉明,彭建兵,李寻昌,等.层状结构岩质边坡动力稳定性试验研究[J].世界地震工程,2004,20(4):131-136.
[6]王勇智,戚炜,门玉明,等.大柳树坝址岩体破坏机制分析[J].煤田地质与勘探,2004,32(6):48-51.
[7]梁庆国,韩文峰,马润勇,等.强地震动作用下层状岩体破坏的物理模拟研究[J].岩土力学,2005,26(8):1307-1311.
[2]Wang L S,Yang L Z,Li T B,et al.Earthquake and land-slide in Diexi Jiaochang Minjiang River,Sichuan andthe envi-ronmental protection[J].Geological Disaster and Environ-mental Protection,2000,11(3):195-199(in Chinese).
[3]Xu X N.High Earthquake Intensity Area Sloping Distortion Destruction Mechanismand Preventing and Controlling Coun-termeasure Research[D].Chengdu:Chengdu University of Technology,2002,6:40-43(in Chinese).
[4]Xu X N,Wang L S.Slope distortion destruction district characteristic of Diexi Earthquake Zone in upstream of Min-jiang River and the origin mechanismanalysis[J].Engineer-ing Geology Journal,2005,13(1):68-75(in Chinese).
[5]Men Y M,Peng J B,Li X C,et al.Research on vibration testing of models for dynamic stability of rock slope withlay-ered structures[J].World Earthquake Engineering,2004,20(4):131-136(in Chinese).
[6]Wang Y Z,Qi W,Men Y M,et al.Big Willow Tree Dam rock mass destruction mechanismanalysis[J].Coal Geology&Exploration,2004,32(6):48-51(in Chinese).
[7]Liang Q G,Han WF,Ma R Y,et al.Physical analogue re-search about bedded rock mass destruction under the strong seismic motion function[J].Soil and Rock Mechanics,2005,26(8):1307-1311(in Chinese).
[8]Lin J S,Whit man R.Earthquake induced displacements of sliding blocks[J].Journal of Geotechnical Engineering,1986,112(1):44-59.
[9]Ausilio E,Conte E,Dente G.Seismic stability analysis of re-inforced slopes[J].Soil Dynamics and Earthquake Engineer-ing,2000,19(3):159-172.
[10]Ling HI,Cheng A D.Rock sliding induced by seismic force[J].International Journal of Rock Mechanics and Mining Sci-ences,1997,34(6):1021-1029.
[11]Newmark N M.Effects of earthquakes on dams and embank-ments[J].Geotechnique,1965,15(2):139-160.
[1]张倬元,王士天,王兰生.工程地质分析原理[M].北京:地质出版社,1994:300-360.
[2]王兰生,杨立铮,李天斌,等.四川岷江叠溪较场地震滑坡及环境保护[J].地质灾害与环境保护,2000,11(3):195-199.
[3]许向宁.高地震烈度区斜坡变形破坏机制与防治对策研究[D].成都:成都理工大学,2002:40-43.
[4]许向宁,王兰生.岷江上游叠溪地震区斜坡变形破坏分区特征及其成因机制分析[J].工程地质学报,2005,13(1):68-75.
[5]门玉明,彭建兵,李寻昌,等.层状结构岩质边坡动力稳定性试验研究[J].世界地震工程,2004,20(4):131-136.
[6]王勇智,戚炜,门玉明,等.大柳树坝址岩体破坏机制分析[J].煤田地质与勘探,2004,32(6):48-51.
[7]梁庆国,韩文峰,马润勇,等.强地震动作用下层状岩体破坏的物理模拟研究[J].岩土力学,2005,26(8):1307-1311.
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心