Test study on influence of immersion on earth pressure and horizontal displacement of high slope of unsaturated intact loess

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	Test study on influence of immersion on earth pressure and horizontal displacement of high slope of unsaturated intact loess
	Huang, Xuefeng 1,2; Li, Jia 2
刊名	Yanshilixue Yu Gongcheng Xuebao/Chinese Journal of Rock Mechanics and Engineering
	2011-03-01
卷号	30 期号:3 页码:635-642
关键词	Landslides Pressure distribution Sediments Soil mechanics Soil testing Cut slope Deformation stages Earth pressure Horizontal displacements Intact loess Non-linear relationships Slope immersion Water immersion
ISSN号	10006915
英文摘要	By the field test, influences of immersion on the top of slope about earth pressure of unsaturated intact loess and displacement of free face of slope are studied. The results show that: (1) When the top of slope is soaked, the earth pressure strength increases rapidly; the maximum earth pressure strength of the soaked slope is 4 times of intact slope before the slope landslide. (2) After the slope landslide, shear outlet of landslide is at the one third of the slope height rather than the toe of slope. (3) Earth pressure strength of unsaturated intact loess is mainly produced by residual downslide thrust. (4) The displacement of free face of slope which is nonlinear relationship with earth pressure and the displacement of free face of slope is not caused by earth pressure. (5) In the process of water immersion, changing process of earth pressure can be divided into three stages: the first stage is changing stage of mechanical properties of slide earth body; the second stage is integral slippage stage of slide earth body; the third stage is integral deformation stage of slide earth body. (6) For the vertical cut slope of unsaturated intact loess, ultimate alarming value of the horizontal displacement is 10 mm; if the horizontal displacement of vertical cut slope is more than 10 mm, the slope would probably evolve into a landslide.
语种	中文
出版者	Academia Sinica
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/111668]
专题	兰州理工大学
作者单位	1.Department of Architectural Engineering, Logistical Engineering University of PLA, Chongqing 400041, China 2.1.School of Civil Engineering, Lanzhou University of Technology, Lanzhou, Gansu 730050, China;
推荐引用方式 GB/T 7714	Huang, Xuefeng,Li, Jia. Test study on influence of immersion on earth pressure and horizontal displacement of high slope of unsaturated intact loess[J]. Yanshilixue Yu Gongcheng Xuebao/Chinese Journal of Rock Mechanics and Engineering,2011,30(3):635-642.
APA	Huang, Xuefeng,&Li, Jia.(2011).Test study on influence of immersion on earth pressure and horizontal displacement of high slope of unsaturated intact loess.Yanshilixue Yu Gongcheng Xuebao/Chinese Journal of Rock Mechanics and Engineering,30(3),635-642.
MLA	Huang, Xuefeng,et al."Test study on influence of immersion on earth pressure and horizontal displacement of high slope of unsaturated intact loess".Yanshilixue Yu Gongcheng Xuebao/Chinese Journal of Rock Mechanics and Engineering 30.3(2011):635-642.