Experimental Study on Main Physical Parameters Controlling Shear Strength of Unsaturated Loess

doi:10.1155/2021/6652210

CORC > 兰州理工大学 > 兰州理工大学 > 土木工程学院

	Experimental Study on Main Physical Parameters Controlling Shear Strength of Unsaturated Loess
	Tian, Wen-tong 1,2; Dong, Jian-hua 1; Sun, Jun-jie 3; Yang, Bo 2
刊名	ADVANCES IN CIVIL ENGINEERING
	2021-01-08
卷号	2021 页码:-
关键词	MATRIC SUCTION BEHAVIOR SOIL
ISSN号	1687-8086
DOI	10.1155/2021/6652210
英文摘要	It is particularly important to study the strength of unsaturated loess, and its accurate determination is crucial to the stability analysis of soil slope and foundation and calculation of earth pressure. In order to reveal the control mechanism of physical parameters on the shear strength of unsaturated loess, the intact and remolded loess were used as the research object; sandy silt, quartz flour, and quartz sand were used as contrast; the systematic direct shear tests of unsaturated loess, sandy silt, and quartz sand under different conditions of water content, dry density, and clay content were carried out. The results show that the cohesion, internal friction angle, and shear strength of unsaturated loess piecewise functionally decrease with the increase of water content, its shear strength increases linearly with the increase of dry density, and its internal friction angle shows an upward quadratic function relation with the increase of clay content. The law results of comparing sandy silt, quartz flour, and quartz sand with loess considering water content and dry density are the same; therefore, the equation of shear strength of unsaturated loess is proposed for practical engineering reference, and by the first derivative analysis of the equation, it is feasible to determine the control proportion of the three parameters on the shear strength of unsaturated loess. A stage-like difference between the three control proportions is observed, depending on the combination variations of water content and clay content.
WOS研究方向	Construction & Building Technology ; Engineering
语种	英语
出版者	HINDAWI LTD
WOS记录号	WOS:000611577900005
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/147353]
专题	土木工程学院
通讯作者	Dong, Jian-hua
作者单位	1.Lanzhou Univ Technol, Sch Civil Engn, Lanzhou 730050, Gansu, Peoples R China; 2.CEA, Lanzhou Inst Seismol, Key Lab Loess Earthquake Engn, Lanzhou 730000, Gansu, Peoples R China; 3.Wenzhou Univ, Coll Civil Engn & Architecture, Wenzhou 325035, Zhejiang, Peoples R China
推荐引用方式 GB/T 7714	Tian, Wen-tong,Dong, Jian-hua,Sun, Jun-jie,et al. Experimental Study on Main Physical Parameters Controlling Shear Strength of Unsaturated Loess[J]. ADVANCES IN CIVIL ENGINEERING,2021,2021:-.
APA	Tian, Wen-tong,Dong, Jian-hua,Sun, Jun-jie,&Yang, Bo.(2021).Experimental Study on Main Physical Parameters Controlling Shear Strength of Unsaturated Loess.ADVANCES IN CIVIL ENGINEERING,2021,-.
MLA	Tian, Wen-tong,et al."Experimental Study on Main Physical Parameters Controlling Shear Strength of Unsaturated Loess".ADVANCES IN CIVIL ENGINEERING 2021(2021):-.