Pileslab Design in Pabaungan Hilir, Candi Laras Selatan District, Tapin Regency, South Kalimantan

Abstract

The Pebaungan River is one of the river sections in Pabaungan Hilir, Candi Laras Selatan District, Tapin Regency, South Kalimantan. In this river, there is a retaining wall with a slope condition. This planning is carried out by collecting the necessary data, followed by an analysis of the characteristics of the study soil. The value of the safety factor for the current conditions is then calculated by simulating the stability of the slope using the geoslope. After that, the pileslab design is calculated by taking into account the loading, reinforcement, and foundation calculations. After the pileslab was fixed, the slope stability analysis modeling was again carried out to determine the safety factor.

According to the analysis's findings, the study soil's characteristics for hard soil were at a depth of 40 meters, and the safety factor for slope stability under the current circumstances was 0.947, which was not safe. The pileslab calculation takes into account standard loading and reinforcement, as well as the foundation design using a 30x30 square pile and accounting for bearing capacity, the lateral force of the pile, and settlement. After that, modeling was carried out to get the value of the overall slope safety factor after the pileslab was installed, which came out to be 1.515.

Keywords: Pileslab, slope stability, settlement, bearing capacity