康县城关镇刘家坎十字坡滑坡形成机制与稳定性分析
|
摘要
基于滑坡区地质环境,通过区域地质调查,大比例尺平面图测绘,滑坡微地貌和变形破坏特征测量籍调查,室内岩土体试验等手段,对康县十字坡滑坡的特征和形成机制进行了系统研究。研究成果表明,该滑坡为小型碎石堆积土滑坡,降雨、不合理的人工活动及滑坡区高陡的地形是诱发滑坡变形的主要因素。在认识滑坡形成机制的基础上,采用多种极限平衡计算方法,并结合滑坡所处的地质环境,评价该滑坡在天然、降雨、地震及降雨和地震耦合作用下的稳定性,为该滑坡的治理提供理论指导。
The paper studied the features and formation mechanism of Shizipo landslide by means of such methods as plan large-scale mapping,landslide damage and deformation characteristics of micro-topography measurement of cadastral surveys,indoor rock and soil testing according to the results of regional survey in Kangxian County.Research results show that the accumulation of gravel soil for small landslide,rainfall,human activities and unreasonable high and steep terrain landslide area are the major factors leading the deformation-induced landslides.In the understanding of landslide mechanisms,based on calculations using a variety of limit equilibrium methods,combined with the landslide geological environment in which to evaluate the decline in natural rainfall,earthquakes and seismic coupling effect of rainfall and the stability of the landslide governance to provide theoretical guidance.
The paper studied the features and formation mechanism of Shizipo landslide by means of such methods as plan large-scale mapping,landslide damage and deformation characteristics of micro-topography measurement of cadastral surveys,indoor rock and soil testing according to the results of regional survey in Kangxian County.Research results show that the accumulation of gravel soil for small landslide,rainfall,human activities and unreasonable high and steep terrain landslide area are the major factors leading the deformation-induced landslides.In the understanding of landslide mechanisms,based on calculations using a variety of limit equilibrium methods,combined with the landslide geological environment in which to evaluate the decline in natural rainfall,earthquakes and seismic coupling effect of rainfall and the stability of the landslide governance to provide theoretical guidance.
引文
[1]王恭先,徐峻龄,刘光代.滑坡学与滑坡防治技术[M].北京:中国铁道出版社,2004.
[2]吴伟江,王念秦.甘肃滑坡灾害[M].兰州:兰州大学出版社,2006.
[3]唐永仪.新构造运动在陇南滑坡泥石流形成中的作用[J].兰州大学学报(自然科学出版社),1992,23(4):153-156.
[4]肖学沛,李天斌,张志龙.三峡水库区严家坡滑坡成因分析及稳定性评价[J].中国地质灾害与防治学报,2005,16(1):39-43.
[5]郑明新.论滑带土强度特征及强度参数的反算法[J].岩土力学,2003,24(4):528-532.
[6]Sonmez H,Ulusay R,Gokceoglu C,A practical procedure for theback analysis of slope failures in closely jointed rock masses[J].International Journal of Rock Mechanics and Mining Sciences,1998,35(2):219-233.
[7]Deng J H,Lee C F.Displacement back analysis for a steep slopeat the Three Gorges Project site[J].International Journal of RockMechanics and Mining Sciences,2001,38(2):259-268.
[2]吴伟江,王念秦.甘肃滑坡灾害[M].兰州:兰州大学出版社,2006.
[3]唐永仪.新构造运动在陇南滑坡泥石流形成中的作用[J].兰州大学学报(自然科学出版社),1992,23(4):153-156.
[4]肖学沛,李天斌,张志龙.三峡水库区严家坡滑坡成因分析及稳定性评价[J].中国地质灾害与防治学报,2005,16(1):39-43.
[5]郑明新.论滑带土强度特征及强度参数的反算法[J].岩土力学,2003,24(4):528-532.
[6]Sonmez H,Ulusay R,Gokceoglu C,A practical procedure for theback analysis of slope failures in closely jointed rock masses[J].International Journal of Rock Mechanics and Mining Sciences,1998,35(2):219-233.
[7]Deng J H,Lee C F.Displacement back analysis for a steep slopeat the Three Gorges Project site[J].International Journal of RockMechanics and Mining Sciences,2001,38(2):259-268.
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