Empirical equation for evaluating the dispersivity of cohesive soil

doi:10.1139/cgj-2012-0332

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

	Empirical equation for evaluating the dispersivity of cohesive soil
	Fan, Henghui 1; Kong, Lingwei 2
刊名	CANADIAN GEOTECHNICAL JOURNAL
	2013
卷号	50 期号:9 页码:989-994
关键词	dispersive soil dispersive mechanism experimental evaluation empirical equation
ISSN号	0008-3674
DOI	10.1139/cgj-2012-0332
英文摘要	As indicated by the theory of a clay-water-electrolyte system, the dispersive mechanism of cohesive soil involves three aspects: low clay content, high sodium ion percentage, and strongly alkaline pH. Accordingly, an empirical equation was established with an associated procedure and criteria proposed for evaluating the dispersivity of cohesive soil. The equation consists of four soil physical and chemical indicators: liquid limit (W-L), clay content (P-C), sodium percentage in the pore water (P-S), and pH. The equation is F = 4 - 0.01(2W(L) + P-C - P-S) + 0.1 pH, where F is the soil dispersivity value. Compared with the evaluation based on laboratory tests, the empirical equation had higher accuracy for the evaluation of the dispersivity of cohesive soil, and was thus conducive to greater engineering safety. This indicates that the proposed empirical equation is applicable for evaluating the dispersivity of cohesive soil in general engineering.
WOS研究方向	Engineering ; Geology
语种	英语
出版者	CANADIAN SCIENCE PUBLISHING, NRC RESEARCH PRESS
WOS记录号	WOS:000324173100007
内容类型	期刊论文
源URL	[http://119.78.100.198/handle/2S6PX9GI/3492]
专题	岩土力学所知识全产出_期刊论文国家重点实验室知识产出_期刊论文
作者单位	1.Northwest A&F Univ, Coll Water Resources & Architectural Engn; 2.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn
推荐引用方式 GB/T 7714	Fan, Henghui,Kong, Lingwei. Empirical equation for evaluating the dispersivity of cohesive soil[J]. CANADIAN GEOTECHNICAL JOURNAL,2013,50(9):989-994.
APA	Fan, Henghui,&Kong, Lingwei.(2013).Empirical equation for evaluating the dispersivity of cohesive soil.CANADIAN GEOTECHNICAL JOURNAL,50(9),989-994.
MLA	Fan, Henghui,et al."Empirical equation for evaluating the dispersivity of cohesive soil".CANADIAN GEOTECHNICAL JOURNAL 50.9(2013):989-994.