Unsaturated expansive soil fissure characteristics combined with engineering behaviors

doi:10.1007/s11771-012-1444-0

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	Unsaturated expansive soil fissure characteristics combined with engineering behaviors
	Li Xiong-wei 1; Wang Yong 2; Yu Jing-wei 1; Wang Yan-li 3
刊名	JOURNAL OF CENTRAL SOUTH UNIVERSITY
	2012
卷号	19 期号:12 页码:3564-3571
关键词	expansive soil surface fissure ratio fractal dimension permeability deformation modulus
ISSN号	2095-2899
DOI	10.1007/s11771-012-1444-0
英文摘要	The relationship among the surface fissure ratio, moisture content, seepage coefficient and deformation modulus of field unsaturated expansive soil in Nanning, Guangxi Province, China, was obtained by a direct or indirect method. Digital images of expansive soil of the surface fissure with different moisture contents were analyzed with the binarization statistic method. In addition, the fissure fractal dimension was computed with a self-compiled program. Combined with in situ seepage and loading plate tests, the relationship among the surface fissure ratio, moisture content, seepage coefficient and deformation modulus was initially established. The surface fissure ratio and moisture content show a linear relation, "y=-0.019 1x+1.028 5" for rufous expansive soil and "y=-0.071x+2.610 5" for grey expansive soil. Soil initial seepage coefficient and surface fissure ratio show a power function relation, "y=1x10(-9)exp(15.472x)" for rufous expansive soil and "y=5x10(-7)exp(4.209 6x)" for grey expansive soil. Grey expansive soil deformation modulus and surface fissure ratio show a power function relation of "y=3.935 7exp(0.993 6x)". Based on the binarization and fractal dimension methods, the results show that the surface fissure statistics can depict the fissure distribution in the view of two dimensions. And the evolvement behaviors of permeability and the deformation modulus can indirectly describe the developing state of the fissure. The analysis reflects that the engineering behaviors of unsaturated expansive soil are objectively influenced by fissure.
WOS研究方向	Metallurgy & Metallurgical Engineering
语种	英语
出版者	JOURNAL OF CENTRAL SOUTH UNIV TECHNOLOGY
WOS记录号	WOS:000312880400030
内容类型	期刊论文
源URL	[http://119.78.100.198/handle/2S6PX9GI/3404]
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.Changzhou Inst Technol, Changzhou Key Lab Struct Engn & Mat Properties, Sch Civil Engn & Architecture; 2.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn ; 3.Yangtze River Sci Res Inst, Minist Water Resources, Key Lab Geotech Mech & Engn
推荐引用方式 GB/T 7714	Li Xiong-wei,Wang Yong,Yu Jing-wei,et al. Unsaturated expansive soil fissure characteristics combined with engineering behaviors[J]. JOURNAL OF CENTRAL SOUTH UNIVERSITY,2012,19(12):3564-3571.
APA	Li Xiong-wei,Wang Yong,Yu Jing-wei,&Wang Yan-li.(2012).Unsaturated expansive soil fissure characteristics combined with engineering behaviors.JOURNAL OF CENTRAL SOUTH UNIVERSITY,19(12),3564-3571.
MLA	Li Xiong-wei,et al."Unsaturated expansive soil fissure characteristics combined with engineering behaviors".JOURNAL OF CENTRAL SOUTH UNIVERSITY 19.12(2012):3564-3571.