干旱区生态环境知识资源中心(Arid): FACTORS AFFECTING THE SWELLING PRESSURE MEASURED BY THE OEDEMETER METHOD

Arid

	FACTORS AFFECTING THE SWELLING PRESSURE MEASURED BY THE OEDEMETER METHOD
	Jayalath, C. P. G.; Gallage, C.; Miguntanna, N. S.
通讯作者	Jayalath, CPG
来源期刊	INTERNATIONAL JOURNAL OF GEOMATE
ISSN	2186-2982
EISSN	2186-2990
出版年	2016
卷号	11 期号:24 页码:2397-2402
英文摘要	Expansive soils are common in arid and semi-arid climate regions of the world and cause severe problems on civil engineering structures. The Swelling potential of the expansive soil mainly depends upon the properties of soil and environmental factors, and stress conditions. Swelling pressure is a key parameter used in designing structures in and on expansive soil. The swelling pressure of soil is measured in the laboratory using a representative soil samples. The size and the surface friction of the sample ring used in the swelling pressure test have effects on the measured swelling pressure and they have not properly been investigated. In this study, a series of constant volume swelling tests were conducted using an automated consolidation-swell apparatus to evaluate the effect of sample ring size, ring friction, initial dry density, and initial moisture content (IMC). Test results indicate an exponential growing trend of swelling pressure when the dry density is increased. Similarly, high swell pressures are achieved when the IMC is increased for the same dry density. A higher swelling pressure was measured when the friction of the specimen ring was reduced. The measured swelling pressure increases with increasing the height of the sampling ring and it decreases when the ring diameter is increased. Therefore, it is recommended to use a standard sample ring reducing inside wall friction using lubricants when measuring the swelling pressure in the laboratory. Further, the sample ring size, initial density and initial moisture content of soil should be given when reporting swelling pressure of soil.
英文关键词	Expansive Soil Swelling Pressure Unsaturated Soil Consolidation/Swell Apparatus
类型	Article
语种	英语
收录类别	ESCI
WOS记录号	WOS:000378635000024
WOS类目	Engineering, Civil
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/2XILL650/331556
作者单位	[Jayalath, C. P. G.; Miguntanna, N. S.] Univ Ruhuna, Fac Engn, Matara, Sri Lanka; [Gallage, C.] Queensland Univ Technol, Fac Sci & Engn, Brisbane, Qld 4001, Australia
推荐引用方式 GB/T 7714	Jayalath, C. P. G.,Gallage, C.,Miguntanna, N. S.. FACTORS AFFECTING THE SWELLING PRESSURE MEASURED BY THE OEDEMETER METHOD[J],2016,11(24):2397-2402.
APA	Jayalath, C. P. G.,Gallage, C.,&Miguntanna, N. S..(2016).FACTORS AFFECTING THE SWELLING PRESSURE MEASURED BY THE OEDEMETER METHOD.INTERNATIONAL JOURNAL OF GEOMATE,11(24),2397-2402.
MLA	Jayalath, C. P. G.,et al."FACTORS AFFECTING THE SWELLING PRESSURE MEASURED BY THE OEDEMETER METHOD".INTERNATIONAL JOURNAL OF GEOMATE 11.24(2016):2397-2402.