Loess landslide types and topographic features at South Jingyang Plateau, China

被引：16
|
作者：
Xu L. [1 ]
Dai F.-C. [1 ]
Min H. [2 ]
Kwong A.K.L. [3 ]
机构：
[1] Institute of Geology and Geophysics, Chinese Acad. of Sci.
[2] Institute of Rock and Soil Mechanics, Chinese Acad. of Sci.
[3] Department of Civil Engineering, University of Hong Kong, Hong Kong
来源：
Diqiu Kexue - Zhongguo Dizhi Daxue Xuebao/Earth Science - Journal of China University of Geosciences | 2010年 / 35卷 / 01期
关键词：
Landslide features; Landslide types; Loess landslide; South Jingyang plateau;
D O I：
10.3799/dqkx.2010.016
中图分类号：
学科分类号：
摘要：
The South Jingyang plateau, which has a total area of 70 km2, is located in Shaanxi Province, China. Groundwater table in this loess plateau has been significantly raised since 1976 when the loess cover began to be artificially irrigated. Up to now, more than 50 landslide events at 27 sites have occurred not only resulting in large economic loss and numerous deaths but also exacerbating water and soil erosion that reduced plateau area badly. After filed visits and landslide measurement at South Jingyang plateau, the following types of loess landslides there can be recognized on the basis of the initiative mechanisms: loess flowslide, loess slide and loess fall. We also analyzed the mechanisms of terrain-edge cracks and steep scarp and their relations with group-distribution and retrogressive occurrences of loess landslide. The mechanism of the long runout loess landslide has also been discussed.
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页码：155 / 160
页数：5
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