干旱区生态环境知识资源中心(Arid): Review of collapse triggering mechanism of collapsible soils due to wetting

Arid

DOI	10.1016/j.jrmge.2015.12.002
	Review of collapse triggering mechanism of collapsible soils due to wetting
	Li, Ping; Vanapalli, Sai; Li, Tonglu
通讯作者	Vanapalli, S
来源期刊	JOURNAL OF ROCK MECHANICS AND GEOTECHNICAL ENGINEERING
ISSN	1674-7755
EISSN	2589-0417
出版年	2016
卷号	8 期号:2 页码:256-274
英文摘要	Loess soil deposits are widely distributed in arid and semi-arid regions and constitute about 10% of land area of the world. These soils typically have a loose honeycomb-type meta-stable structure that is susceptible to a large reduction in total volume or collapse upon wetting. Collapse characteristics contribute to various problems to infrastructures that are constructed on loess soils. For this reason, collapse triggering mechanism for loess soils has been of significant interest for researchers and practitioners all over the world. This paper aims at providing a state-of-the-art review on collapse mechanism with special reference to loess soil deposits. The collapse mechanism studies are summarized under three different categories, i.e. traditional approaches, microstructure approach, and soil mechanics-based approaches. The traditional and microstructure approaches for interpreting the collapse behavior are comprehensively summarized and critically reviewed based on the experimental results from the literature. The soil mechanics-based approaches proposed based on the experimental results of both compacted soils and natural loess soils are reviewed highlighting their strengths and limitations for estimating the collapse behavior. Simpler soil mechanics-based approaches with less parameters or parameters that are easy-to-determine from conventional tests are suggested for future research to better understand the collapse behavior of natural loess soils. Such studies would be more valuable for use in conventional geotechnical engineering practice applications. (C) 2016 Institute of Rock and Soil Mechanics, Chinese Academy of Sciences. Production and hosting by Elsevier B.V. All rights reserved.
英文关键词	Collapse mechanism Microstructure Constitutive relationships Compacted soils Natural loess soils Elastoplastic models Yield surface Structural strength
类型	Article
语种	英语
开放获取类型	DOAJ Gold
收录类别	ESCI
WOS记录号	WOS:000386784800014
WOS关键词	WATER CHARACTERISTIC CURVE ; STRESS-STRAIN BEHAVIOR ; VOLUME CHANGE BEHAVIOR ; ELASTOPLASTIC MODEL ; GEOTECHNICAL PROPERTIES ; ENGINEERING PROPERTIES ; UNSATURATED SOIL ; SHEAR-STRENGTH ; COMPACTED SOIL ; IN-SITU
WOS类目	Engineering, Geological
WOS研究方向	Engineering
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/331651
作者单位	[Li, Ping; Vanapalli, Sai] Univ Ottawa, Dept Civil Engn, Ottawa, ON K1N 6N5, Canada; [Li, Ping; Li, Tonglu] Changan Univ, Sch Geol Engn & Geomat, Xian 710054, Shaanxi, Peoples R China
推荐引用方式 GB/T 7714	Li, Ping,Vanapalli, Sai,Li, Tonglu. Review of collapse triggering mechanism of collapsible soils due to wetting[J],2016,8(2):256-274.
APA	Li, Ping,Vanapalli, Sai,&Li, Tonglu.(2016).Review of collapse triggering mechanism of collapsible soils due to wetting.JOURNAL OF ROCK MECHANICS AND GEOTECHNICAL ENGINEERING,8(2),256-274.
MLA	Li, Ping,et al."Review of collapse triggering mechanism of collapsible soils due to wetting".JOURNAL OF ROCK MECHANICS AND GEOTECHNICAL ENGINEERING 8.2(2016):256-274.