An Experimental Study of the Initiation Mechanism of Landslide Debris Flow under a Strong Earthquake
详细信息
- 责任者：Liu Lingxia (Institute of Hydrogeology and Environment Geology ; CAGS ; Zhengding 050803 ; China) ; Li Xiangquan
- 刊名：Hydrogeology and Engineering Geology
- 出版年：2011
- 卷期：38(3)
- 关键词：强震 ; strong earthquakes ; 滑坡 ; landslides ; 碎屑流 ; debris flows ; 四川 ; Sichuan Province
- 页码：p.104-109
- 图表：8 illus., 1 table, 14 refs.
- 分类号：1800
- 出版序号：1429
- issnNo：ISSN1000-3665
- isbnNo：CN11-2202/P
摘要
The Xiejiadian landslide, a typical landslide located in Longmen County, was triggered by Wenchuan earthquake 2008. The results show that the red syenogranite is a long gap and the degree of development of fractures in the rock is higher than that in the black-brown sandstone. With the increase in strain rate, the shear strength of two kinds of rocks has a corresponding increase, and the strength of black-brown sandstone is higher than that of the red syenogranite. With the increase of loading rate, the shearing strength of two sample regression line slope is identical. Thus, the strength of growth rate is equal. Two rocks have reached their shear strength under the earthquake. Therefore, the shear failure of rock is the main cause of the landslide.