摘要
在阐述条块划分的原则及条分方法的基础上,以三峡库区新滩滑坡为例,选用20,40,80m三种不同的条分宽度,以相同的条块编号顺序对滑坡的速度进行了计算,结果表明,计算滑坡滑动的速度随着条分宽度的增大而变大,但其变幅不大,在5.4%～8.2%间;条分宽度的变化没有改变滑坡岩土体滑动速度先增大后减小的规律,也没有改变滑动速度出现最大值的条块在滑体中的位置;另外,与四边形条块相比,三角形条块宽度的大小对滑坡速度计算影响较大。
On the basis of the principle of slice partition and slice method, this paper takes Xintan landslide in the Three-Gorges reservoir as an example, and selects three kinds of slice width, respectively, 20-meter,40-meter and 80-meter, and carries out the calculation of slice speed in the same order of slice number. It comes to the conclusion that the calculation speeds of slices increase with increasing slice width, but this kind of scope is small and varies between 5.4% and 8.2%. Then the division of slice can not change the location where the slice speed comes to the maximum when this slice slips on the front part of landslide. Additionally, compared with the quadrangular slice, the width of triangular slice has a greater influence on the calculation speed of landslides.
出处
《地质科技情报》
CAS
CSCD
北大核心
2004年第3期105-108,共4页
Geological Science and Technology Information
基金
国家自然科学基金资助项目(40072084)
教育部博士点基金资助项目(20030491004)
关键词
条分法
滑坡速度
新滩滑坡
slice method
landslide speed
Xintan landslide
