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

	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 1
	2011-03-01
发表期刊	Yanshilixue Yu Gongcheng Xuebao/Chinese Journal of Rock Mechanics and Engineering
ISSN	10006915
卷号	30 期号:3 页码:635-642
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.
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
收录类别	EI
语种	中文
出版者	Academia Sinica
EI入藏号	20111613926596
EI主题词	Retaining walls
EI分类号	483 Soil Mechanics and Foundations - 483.1 Soils and Soil Mechanics - 931.1 Mechanics
来源库	Compendex
分类代码	483 Soil Mechanics and Foundations - 483.1 Soils and Soil Mechanics - 931.1 Mechanics
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/111668
专题	兰州理工大学
作者单位	1.1.School of Civil Engineering, Lanzhou University of Technology, Lanzhou, Gansu 730050, China; 2.Department of Architectural Engineering, Logistical Engineering University of PLA, Chongqing 400041, China
第一作者单位	土木工程学院
第一作者的第一单位	土木工程学院
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.