Laboratory Model Tests on Stone Column and Pervious Concrete Columns: A Comparative Study

Jignesh  Patel; Chandresh  Solanki; Yogendra Tandel; Bhavin  Patel

doi:10.46604/ijeti.2021.7993

Authors

Jignesh Patel Civil Engineering Department, Sardar Vallabhbhai National Institute of Technology, Gujarat, India
Chandresh Solanki Civil Engineering Department, Sardar Vallabhbhai National Institute of Technology, Gujarat, India
Yogendra Tandel Applied Mechanics Department, Government Engineering College Dahod, Gujarat, India
Bhavin Patel Civil Engineering Department, GIDC Degree Engineering College Navsari, Gujarat, India

DOI:

https://doi.org/10.46604/ijeti.2021.7993

Keywords:

ground improvement, stone column, pervious concrete column, composite column, model test

Abstract

This study aims to perform laboratory model tests to investigate the load-deformation behavior of stone columns (SCs), pervious concrete columns (PCCs), and composite columns (CCs). Here, CC refers to the column which has the upper portion made of PCC and the lower portion made of SC. The parameters investigated in this study include column diameters, column lengths, and installation methods (pre-cast and cast-in-situ methods). The results of the model tests reveal that the axial load-carrying capacity of PCC is nearly 8 times more than that of SC with the same diameter. Moreover, it is also observed that at the top portion of SC, with the PCC length which is about 3.75 to 5 times the column diameter, the load-carrying capacity can significantly increase. It is concluded that the installation methods have marginal influence on the load-deformation behavior of PCC.

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