Influence of salt in site soils on permeability and pore diameter

doi:10.11817/j.issn.1672-7207.2016.08.028

	Influence of salt in site soils on permeability and pore diameter
	Chen, Wenwu; Lü, Haimin; Wu, Guopeng; Zhang, Jiaxuan; Chen, Wenwu (sungp@lzu.edu.cn)
刊名	中南大学学报(自然科学版)
	2016-08-26
卷号	47 期号:8 页码:2747-2751
关键词	遗址土体特定盐分渗透性压汞试验孔隙结构
ISSN号	1672-7207
DOI	10.11817/j.issn.1672-7207.2016.08.028
其他题名	盐分对遗址土体渗透性及孔径的影响
文献子类	Article
英文摘要	In order to explore the influence of salt content on permeability in site soils, based on the laboratory water saturated permeability test, with the addition of two soluble salts with the gradient of 0.2%(mass fraction) of NaCl and Na2SO4in the desalination soil, the change of permeability coefficient in the soils with particular content and category saline was tested. At the same time, the internal pore structure of salt samples by mercury injection test was tested in order to conform the results of permeability test from the microscopic. The results show that the permeability coefficient of salt samples decreases with the increase of salt content and the both accord with good negative exponential correlation. The pore size distribution curve of salt samples gradually shifted to the left with the increase of salt content. The peaks of the pore size distribution curve present the form of index decreasing with the increase of salt content, corresponding to penetration test results. The internal pore structure of salt samples is directly related to its permeability, and the existence of salt has the effect of a certain degree of congestion and filling to the internal pore structure, affecting the permeability of soils. © 2016, Central South University Press. All right reserved.
学科主题	Water Resources ; Water Treatment Techniques ; Soils And Soil Mechanics ; Mathematical Statistics ; Physical Properties Of Gases, Liquids And Solids
出版地	Changsha
资助项目	国家科技支撑计划
项目编号	“十二五”国家科技支撑计划项目
语种	中文
CSCD记录号	CSCD:5824888
资助机构	MOST
内容类型	期刊论文
源URL	[http://ir.lzu.edu.cn/handle/262010/182552]
专题	土木工程与力学学院_期刊论文
通讯作者	Chen, Wenwu (sungp@lzu.edu.cn)
推荐引用方式 GB/T 7714	Chen, Wenwu,Lü, Haimin,Wu, Guopeng,et al. Influence of salt in site soils on permeability and pore diameter[J]. 中南大学学报(自然科学版),2016,47(8):2747-2751.
APA	Chen, Wenwu,Lü, Haimin,Wu, Guopeng,Zhang, Jiaxuan,&Chen, Wenwu .(2016).Influence of salt in site soils on permeability and pore diameter.中南大学学报(自然科学版),47(8),2747-2751.
MLA	Chen, Wenwu,et al."Influence of salt in site soils on permeability and pore diameter".中南大学学报(自然科学版) 47.8(2016):2747-2751.