摘要
云南水麻高速公路沿线赋存大量的岩堆体,在施工过程中常常发生岩堆体滑坡,造成了巨大的损失。通过现场调研,提出了采用坡面角度、坡面形状和坡体厚度等研究岩堆的外部结构,采用土石混合比和块石尺度分布研究岩堆的内部结构,从而实现岩堆体结构特征的几何特征描述指标方法,为建立岩堆体力学参数与结构特征的定量关系奠定了基础。
On the site of Shui-ma motorway,there is a large number of talus.The talus was composed of soil, debris and rock fragments.In general,the talus is in limited balance.It will slide and destroy the work when dis- turbed by outside factors.The loss from the talus slide is always quite large.Based on the in-situ investigation,a systematic research frame for talus structure characteristics was put forward.The structure of talus was divided into outside structure and inside structure.The outside features can be described with slope angle,slope profile and its thickness,etc.the inside features can be indexed with soil rock ratio and the distribution of rock dimension.These indexes represent the geometry characteristics of talus and can be got easily.The results supply a new method to study the quantitative relationship between the behavior and structure of talus.
出处
《地下空间与工程学报》
CSCD
2007年第z1期1295-1299,共5页
Chinese Journal of Underground Space and Engineering
基金
博士后科学基金(20060390655)
关键词
岩堆体
边坡
结构特征
几何特征
talus
slope
structure characteristic
geometry character
作者简介
薛亚东(1971-),男,山西芮城人,副教授,主要从事岩石力学、边坡风险评估与地下工程方面的教学与科研工作.E-mail:yadongxue@126.com
