干旱区生态环境知识资源中心(Arid): Load-Settlement Behavior of Geogrid Encased Granular Pile in Soft Expansive Soil

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	Load-Settlement Behavior of Geogrid Encased Granular Pile in Soft Expansive Soil
	Kumar, Dr Rakesh; Jain, Dr P. K.
通讯作者	Kumar, DR
来源期刊	ELECTRONIC JOURNAL OF GEOTECHNICAL ENGINEERING
ISSN	1089-3032
出版年	2016
卷号	21 期号:9 页码:3561-3581
英文摘要	The construction of structures on expansive soil is a problem worldwide. This type of soil is found in many places all over the world especially in the arid and semi-arid regions. The soil swells on wetting consequently strength reduces and shrinks on drying resulting in large volume changes. In saturated state the expansive soil behaves like soft soil. The granular pile technique is usually applied in case of soft soil, may be applied in soft expansive soil too. This paper presents outcome of an experimental study conducted on a single granular pile constructed in prepared soft expansive clay. Granular piles of sand without and with geogrid encasement were made in the soil. The consistency of soil, s/d ratio (where s= spacing between the granular piles and d= diameter of granular pile as per unit cell concept) and diameter of pile were the variables of the study. The load tests were performed for different combination of soil consistencies and other variables. It is noted that the load carrying capacity of soft expansive clay reinforced with granular pile got significant enhanced with respect to unreinforced clay bed. The load carrying capacity increases as the consistency of the soft expansive clay increases. Piles arrangement that gives s/d ratio more than 3 does not give any significant improvement in the load carrying capacity of the granular pile. The load carrying capacity of a pile is also found increasing with the diameter of the granular pile. Geogrid encased granular pile performs better than the ordinary granular pile. Finite-element analyses have also been performed using 15-noded triangular elements with the software package PLAXIS. A drained analysis was carried out using Mohr-Coulomb's criterion for soft clay and sand. The numerical results from the FEM are compared with the experimental results which showed good agreement between the results.
英文关键词	Granular pile Soft expansive clay Geogrid encasement Finite element method
类型	Article
语种	英语
收录类别	ESCI
WOS记录号	WOS:000489063500027
WOS关键词	STONE COLUMNS
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/2XILL650/332058
作者单位	[Kumar, Dr Rakesh; Jain, Dr P. K.] MANIT, Civil Engn, Bhopal 462003, India
推荐引用方式 GB/T 7714	Kumar, Dr Rakesh,Jain, Dr P. K.. Load-Settlement Behavior of Geogrid Encased Granular Pile in Soft Expansive Soil[J],2016,21(9):3561-3581.
APA	Kumar, Dr Rakesh,&Jain, Dr P. K..(2016).Load-Settlement Behavior of Geogrid Encased Granular Pile in Soft Expansive Soil.ELECTRONIC JOURNAL OF GEOTECHNICAL ENGINEERING,21(9),3561-3581.
MLA	Kumar, Dr Rakesh,et al."Load-Settlement Behavior of Geogrid Encased Granular Pile in Soft Expansive Soil".ELECTRONIC JOURNAL OF GEOTECHNICAL ENGINEERING 21.9(2016):3561-3581.