Comparative Study on Mechanical Properties of Compacted Clay under Freeze-Thaw Cycles with Closed and Open Systems

doi:10.1155/2019/9206372

CORC > 武汉岩土力学研究所 > 中科院武汉岩土力学所 > 岩土力学所知识全产出 > 期刊论文

	Comparative Study on Mechanical Properties of Compacted Clay under Freeze-Thaw Cycles with Closed and Open Systems
	Xian, Shaohua ; Lu, Zheng ; Yao, Hailin ; Fang, Ran ; She, Jianbo
刊名	ADVANCES IN MATERIALS SCIENCE AND ENGINEERING
	2019
期号	-页码:-
ISSN号	1687-8434
DOI	10.1155/2019/9206372
英文摘要	The frost heave and thaw settlement caused by freeze-thaw cycles will seriously affect the engineering properties of soil. This paper attempts to comparatively investigate the deterioration effect of freeze-thaw cycles on the mechanical properties of compacted clay in closed and open systems. The specimens were frozen and thawed from the top to bottom in two systems. The moisture contents and deformations after freeze-thaw cycles were measured. Mechanical parameters of soil were examined through triaxial compression tests. Results show that the moisture content and deformation of soil change evidently with the increase of freeze-thaw cycles in the open system, while these parameters in the closed system change little. In the open system, the attenuation rate of failure strength, elastic modulus, and angle of internal friction of soil subjected to 7 freeze-thaw cycles are all about 2 times as large as that in the closed system and the attenuation rate of cohesion is even 4 times of that in the closed system. These differences reveal that the deterioration effect of freeze-thaw cycles on soil strength is aggravated after water supply. These findings indicate that soil structure damage and moisture content increase is the dominant factor affecting engineering properties of the soil in the open system.
WOS研究方向	Materials Science
语种	英语
WOS记录号	WOS:000466299400001
内容类型	期刊论文
源URL	[http://119.78.100.198/handle/2S6PX9GI/15081]
专题	岩土力学所知识全产出_期刊论文
作者单位	1.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China; 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Xian, Shaohua,Lu, Zheng,Yao, Hailin,et al. Comparative Study on Mechanical Properties of Compacted Clay under Freeze-Thaw Cycles with Closed and Open Systems[J]. ADVANCES IN MATERIALS SCIENCE AND ENGINEERING,2019(-):-.
APA	Xian, Shaohua,Lu, Zheng,Yao, Hailin,Fang, Ran,&She, Jianbo.(2019).Comparative Study on Mechanical Properties of Compacted Clay under Freeze-Thaw Cycles with Closed and Open Systems.ADVANCES IN MATERIALS SCIENCE AND ENGINEERING(-),-.
MLA	Xian, Shaohua,et al."Comparative Study on Mechanical Properties of Compacted Clay under Freeze-Thaw Cycles with Closed and Open Systems".ADVANCES IN MATERIALS SCIENCE AND ENGINEERING .-(2019):-.