摘要
通过统计法、数值模拟法和应力分析方法等手段,对野外调查的数据进行剖析,结果表明第四系粉质粘土和二叠系片岩、角闪岩是区内的易滑地层;对坡型及外部特征而言,在直线型、凸起型、凹陷型和阶梯型中,凸起型坡和直线型坡为易滑坡型,20°~50°坡度及高10~30 m的斜坡为滑坡发生的主要对象;滑坡在各方向均有发育,但坡向45°~135°和180°~270°属滑坡发育的优势坡向,阳坡发生滑坡的概率高于阴坡;崩塌则主要发生在坡度大于45°,坡高小于30 m的斜坡。
In this paper, based on field investigation data, using statistical analysis, stress analysis and numerical simulation method, results show that the quaternary clay, permian schist and amphibolite are easy to slide. And the linear model and convex slope are more prone to landslide and collapse in the linear model, convex slope, depressed tubulovillous adenoma and ladder types. And the height and gradient has obvious effect on the landslide, the landslide slope mainly occurs in 20°-50°with 10 to 30m height. Landslides are widely distributed in all directions, but the landslide in directions 45°-135°and 180°-270°slope are dominant. The probability of sunny slope landslide is higher than in south faced slope. Slope collapse mainly occurred in the slopes with more than 45° gradient and the height with less than 30 m.
出处
《建筑技术》
北大核心
2017年第12期1302-1305,共4页
Architecture Technology
基金
河南省高校科技创新团队支持计划(14IRTSTHN029)
河南省高等学校重点科研项目(16A560034)
关键词
西峡县
滑坡
崩塌地质灾害
地层地貌
Xixia county
landslide collapse
geological disaster
geomorphologic and strata
