期刊文献+

贵州省德江县香树坪滑坡特征及形成机制研究 被引量:4

CHARACTERISTIC AND FORMATION MECHANISMS OF XIANGSHUPING LANDSLIDE IN DEJIANG COUNTRY IN GUIZHOU PROVINCE
下载PDF
导出
摘要 香树坪滑坡位于贵州省铜仁地区德江县大坪村齐心组,为大型古滑坡。滑坡边界及前缘坡下发育多条拉陷槽,滑动方向为310°~335°。基于滑坡区工程地质条件和滑坡变形破坏特征,建立了滑坡形成机制概念模型:在河谷形成及演化过程中,香树坪斜坡以滑移一弯曲演化。滑坡前缘拉槽LC6^#和LC3^#依次形成,其卸荷和临空效应导致上部坡体进一步变形。滑坡坡脚区因上部坡体进一步滑移变形而应力集中,坡体稳定性整体降低。当坡脚区失稳时滑坡发生。数值分析很好地再现了滑坡演化过程及机理。研究成果可对西部山区类似类滑坡发育条件及识别研究提供参考。 Xiangshuping landslide is located at the Qixin couple of Daping county in Dejiang county,Tongren prefecture,Guizhou province.It is a large ancient landslide.There are several pull trap slots in the boundary of the landslide and the front of the lower slope.Sliding direction of the landslide is 31 0°~335°.On the basis of the Engineering geological conditions and deformation and failure characteristics of landslide area,this paper builds the conceptual model of the formation mechanism.In the valley formation and evolution,Xiangshuping landslide evolves in the forms of sliding and bending.The pull slot LC6#and pull slot LC3#in front of the slope are sequentially formed. Their unloading and overhead effects lead to further deformation in upper slope and causes stress concentration at the base of slope and drop of overall slope stability.Landslide occurs while the base of slope is unstable.Numerical analysis well reproduces the landslide evolution and mechanism.The result of the research can provide reference for analogous landslide developmental conditions and identifications of the western mountains.
出处 《工程地质学报》 CSCD 北大核心 2015年第2期194-202,共9页 Journal of Engineering Geology
基金 大型滑坡长期演变的地质力学行为及成灾模式研究(973计划)(2013CB733201)资助
关键词 香树坪滑坡 拉陷槽 滑移-弯曲-剪断 软硬互层型高边坡 Xiangshuping landslide,Pull trap slot,Sliding-bending-shear break,Interbedded hard and soft highslope
  • 相关文献

参考文献2

二级参考文献57

  • 1黄润秋,赵松江,宋肖冰,许强.四川省宣汉县天台乡滑坡形成过程和机理分析[J].水文地质工程地质,2005,32(1):13-15. 被引量:108
  • 2李豫川.叠溪地震纪实[J].文史天地,2002(6):39-42. 被引量:3
  • 3黄润秋,张倬元,王士天.论岩体结构的表生改造[J].水文地质工程地质,1994,21(4):1-6. 被引量:34
  • 4伍超,冉洪兴,郑永红,黄国富.雅砻江唐古栋垮山堵江溃决洪水过程研究[J].水动力学研究与进展(A辑),1996,11(6):646-652. 被引量:13
  • 5黄润秋 陈龙生.中国的人类活动诱发滑坡灾害,机制及对灾害控制的意义.岩石力学与工程学报,2004,23(16):2766-2777.
  • 6黄润秋 王士天 张倬元.中国西南地壳浅表层动力学过程与工程环境效应研究[M].成都:四川大学出版社,2002..
  • 7王士天 黄润秋 李渝生.雅砻江锦屏水电站重大工程地质问题研究[M].成都:成都科技大学出版社,1995..
  • 8王思敬.金川露天矿边坡变形机制及过程[J].岩土工程学报,1992,4(1):1-7.
  • 9李天斌 陈明东 王兰生.滑坡实时跟踪预报[M].成都:成都科技大学出版社,1999.23-27.
  • 10VOIGHT B,FAUST C.Frictional heat and strength loss in some rapid landslides:error correction and affirmation of mechanism for the Vaiont landslide[J].Geotechnique,1992,42(4):641-643.

共引文献1230

同被引文献24

引证文献4

二级引证文献5

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部