Numerical Analysis of Senggarang Embankment Constructed Cement-CSP Stabilised Sandy Gravel

Abstract

A problematic embankment in Senggarang, Johor is being observed due to its excessive seepage happens from the wave impact by the sea that might lead to the instability of the embankment. Therefore, this paper aims to analyze the seepage characteristic of the embankment constructed with cement and cockle shell powder stabilized sandy gravel and to evaluate the load-bearing capacity of the cement-CSP-stabilised sandy gravel embankment with the ‘prescribed displacement approach’. PLAXIS 8 software was used to simulate the embankment that is made from sandy gravel with homogenous clay footing. The parameters needed for PLAXIS 8 simulation are gained from the literature review made from past works. As a result, the seepage loss for sandy gravel mixed with cement-CSP is lower than untreated sandy gravel. Therefore, the objective of the simulation is as expected, because the parameters for treated sandy gravel are better than the untreated sandy gravel. Somehow, the parameters data for the cement-CSP sandy gravel need to be done in the laboratory for more precise value in the future.