Experimental Investigation of Pile Group under Lateral Cyclic Load in Layered Soil

 

Sudip Basack

Dept. of Applied Mechanics, Bengal Engineering and Science University
Howrah-711103 India
e-mail: basackdrs@hotmail.com

ABSTRACT

The environment prevalent in ocean necessitates the piles supporting offshore structures to be designed against lateral cyclic loading initiated by wave action. Such quasi-static load reversal induces deterioration in the strength and stiffness of the soil-pile system introducing progressive reduction in the bearing capacity as well as settlement of the pile foundation. To understand the effect of lateral cyclic load on lateral capacity of pile group in a layered soil consisting of loose sand overlying a bed of soft clay, a series of laboratory experiments were performed. This paper presents the experimental observations made and the relevant conclusions drawn there from.

Keywords: Pile group, cyclic load, frequency, amplitude

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