IOSR Journal of Mechanical and Civil Engineering (IOSR-JMCE) e-ISSN: 2278-1684,p-ISSN: 2320-334X, Volume 16, Issue 2 Ser. I (Mar. - Apr. 2019), PP 48-53 www.iosrjournals.org DOI: 10.9790/1684-1602014853 www.iosrjournals.org 48 | Page A Time-Dependent Model For Predicting The Response Of A Horizontally Loaded Pile Embedded In A Layered Transversely Isotropic Saturated Soil Oliver C. Waka 1 , Jian-Fei Lu 2 , Aayush Neupane 3 , Shoaib Ahmed 4 , Jacob Arku Ziama 5 , 1 Department of Civil Engineering, Jiangsu University, Zhenjiang, Jiangsu, 212013, P.R. China 2 Department of Civil Engineering, Jiangsu University, Zhenjiang, Jiangsu, 212013, P.R. China Email: 3 Department of Civil and Transportation Engineering, Hohai University, Nanjing, Jiangsu, 211100, P.R. China 4 Department of Civil Engineering, Jiangsu University, Zhenjiang, Jiangsu, 212013, P.R. China 5 Department of Architecture and Transportation, Liaoning Technical University, Fuxin, 123000, P.R. China Correspondent Author: Oliver C. Waka Abstract: A time-dependent model designed for estimating the response of a horizontally loaded pile in a layered saturated soil is presented in the present paper. The results of the present model are compared with the results of existing solution; a better agreement is seen thereof, thus verifying this model. The present results show that the shear force of the pile decreases with increasing depth. The results also indicate that the displacement of the pile decreases as the depth increases. In addition, the pore pressure along the pile-length vanishes to zero as the time increases. This model shows the influence of the soil on a single horizontally loaded pile. When the depth of the soil increases, the shear force and displacement of the pile all decrease significantly. Keywords: Foundation, horizontally loaded pile, layered saturated soil, Muki’s pile method, Pile, Pile -soil --------------------------------------------------------------------------------------------------------------------------------------- Date of Submission: 26-02-2019 Date of acceptance: 12-03-2019 --------------------------------------------------------------------------------------------------------------------------------------- I. Introduction Pile foundations are designed to support high-rise buildings, brides and heavy laterally loaded structures constructed in soils not suitable for a shallow foundation system. The lateral and vertical forces acting on the pile are particularly due to the actions of wind, earthquake and deadweight. [1-4], [5]. Dead loads from tall buildings supported on pile foundations are transferred through the piles to a deeper stratified soil medium. The selection of the type and size of pile foundation to support a tall building involves the consideration of factors that may influence the foundation. Some factors considered in the selection process of a suitable foundation type include the bearing capacity of soils, type of structure, distribution of loadings, durability requirements and construction costs. Furthermore, since weak soils are reinforced with pile foundations to prevent excessive settlements of structures, it is necessary to investigate the behavior of soils on which structures are erected. Thus, the present study analyzes the interaction between a laterally loaded pile and the saturated layered half-space TISS. Apirathvoraku and Karasuhhi[5] used the fictitious pile method to study the response of a circular cylindrical elastic pile embedded in a saturated elastic half-space and subjected to a moment at the top end. Niumpradit & Karadushi[6] used the Biot’s theory combined with the fictitious pile method of [7] to account for the influence of the displacement on the pile-soil interactions. However, only final and initial solutions were obtained in the aforementioned studies. In spite of the available reports on pile-soil interaction, studies on a single pile embedded in a layered TISS can be seldom found in the literature. Previous studies have only considered the pile-soil interaction problems of a single layered transversely isotropic soil. The present study is an effort toward resolving the problem and closing the gap in the literature. This paper aims to apply Muki’s formulation to the problem of a laterally loaded pile embedded in a layered transversely isotropic saturated soil to predict the response of the pile. The pile-soil problem is decoupled into a half-space and a fictitious pile. The layered TISS is handled as a three-dimensional medium, and the pile is regarded as a one-dimensional pile. The relationship between the layered TISS and the fictitious pile is established with the approximation that the normal strain of the extended layered TISS along the axis of the pile is equal to the vertical strain of the fictitious pile. Then, by combining the fictitious pile method and the basic solution of the layered TISS, the second kind of Fredholm integral equation of the pile is established. Numerical results obtained by this study are compared with the existing results to verify the present study.