A Parametric Study on the Interaction factors of Pile-Raft System.

Autor: Jamil, Irfan, Ahmad, Irshad, Khan, Muhammad Shoaib, Khan, Shahid Ali, Khan, Hamza Alam
Předmět:
Zdroj: Journal of Himalayan Earth Science; 6/30/2022, Vol. 55 Issue 1, p14-24, 11p
Abstrakt: Traditionally, the interaction factors including pile-soil-raft and pile-soil-pile in pile-raft system are often ignored to simplify the analysis that leads to unsafe and inadequate designs. In addition, the pile-raft system involves interaction with soil which makes it complex to analyze. The interaction depends on many geometrical and strength factors: including, modulus of elasticity of soil (E), Poisson's ratio (?), spacing/diameter (s/d) ratio, length of piles, geometry of raft etc. To investigate the effect of these parameters in the design of pile raft system, we proposed interaction charts for pile-raft system. A series of 3D finite element analysis were performed and effect of parameters was studied. It has been found that there is a possible interaction between pile, soil, and raft that has effect on the design of pile-raft system. From the developed charts, the results clearly highlighted that the pile-soil-pile interaction decreases with increasing s/d ratio, and soils with high modulus of elasticity are more sensitive to variation of interaction factors between the piles of a pile-raft system. Furthermore, increasing the length of pile enhances the interaction between pile and soil while increase s/d decreases the interaction factor. It is concluded from the parametric study that the designers should consider the effect of interaction factors in the design of the pile-raft system. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index