Effect of wetting-drying-freezing-thawing cycles on the swelling behaviour of the Yanji mudstone

doi:10.1007/s12665-019-8447-1

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

	Effect of wetting-drying-freezing-thawing cycles on the swelling behaviour of the Yanji mudstone
	Zeng, Zhixiong ; Kong, Lingwei
刊名	ENVIRONMENTAL EARTH SCIENCES
	2019
卷号	78 期号:15 页码:-
关键词	Swelling mudstone Wetting-drying-freezing-thawing cycles Swelling pressure Swelling strain
ISSN号	1866-6280
DOI	10.1007/s12665-019-8447-1
英文摘要	One of the most important characteristics of mudstones is their susceptibility to swelling upon absorption of water, which is influenced by climatic processes. This study investigated the swelling pressure and strain of the Yanji mudstone subjected to wetting-drying (W-D), freezing-thawing (F-T) and wetting-drying-freezing-thawing (W-D-F-T) cycles. The swelling curves were analysed using a simulation of the logistic function, and the coefficient of initial swelling (C-is), coefficient of primary swelling (C-ps), coefficient of secondary swelling (C-ss), and ultimate swell were derived from the mathematical simulation. The results show that the cyclic treatments can significantly influence the swelling kinetics and ultimate swell. As the number of treatment cycles increases, C-is increases and then decreases due to the competition between the increasing permeability and the decreasing swelling potential induced by the propagation of cracks and large voids, while C-ps and C-ss decrease because of the compaction and contraction of the aggregates after cyclic treatments. The ultimate swelling pressure and ultimate swelling strain decrease with increasing treatment cycles and the relationships among these parameters were also established, allowing the ultimate swelling pressure and strain of the Yanji mudstone under the full range of seasonal variation to be predicted.
WOS研究方向	Environmental Sciences & Ecology ; Geology ; Water Resources
语种	英语
WOS记录号	WOS:000476489300004
内容类型	期刊论文
源URL	[http://119.78.100.198/handle/2S6PX9GI/14929]
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, Hubei, Peoples R China; 2.Ecole Ponts ParisTech, UR Navier CERMES, 6 & 8 Av Blaise Pascal, F-77455 Champs Sur Marne 2, Marne La Vallee, France
推荐引用方式 GB/T 7714	Zeng, Zhixiong,Kong, Lingwei. Effect of wetting-drying-freezing-thawing cycles on the swelling behaviour of the Yanji mudstone[J]. ENVIRONMENTAL EARTH SCIENCES,2019,78(15):-.
APA	Zeng, Zhixiong,&Kong, Lingwei.(2019).Effect of wetting-drying-freezing-thawing cycles on the swelling behaviour of the Yanji mudstone.ENVIRONMENTAL EARTH SCIENCES,78(15),-.
MLA	Zeng, Zhixiong,et al."Effect of wetting-drying-freezing-thawing cycles on the swelling behaviour of the Yanji mudstone".ENVIRONMENTAL EARTH SCIENCES 78.15(2019):-.