Influence of U-Shape Row Pile Configuration to Mitigate Steep Slope Failure: A Numerical Study

Muhammad Chofi Irnawan; Muhammad Shofwan Donny Cahyono

doi:10.56741/jnest.v5i03.2480

Influence of U-Shape Row Pile Configuration to Mitigate Steep Slope Failure: A Numerical Study

Authors

Muhammad Chofi Irnawan Universitas Widya Kartika https://orcid.org/0009-0005-0104-3680
Muhammad Shofwan Donny Cahyono Universitas Widya Kartika https://orcid.org/0009-0003-6305-8322

DOI:

https://doi.org/10.56741/jnest.v5i03.2480

Keywords:

Finite Element Analysis, Plaxis, Reinforcement, Safety Factor, Slope Stability, Strength Reduction Method

Abstract

Landslide is a major problem in the field of geotechnical engineering, particularly in steep areas such as mountainous regions. In areas with steep topography, soil masses or rocks are unable to withstand the force of gravity and external forces acting on the slope, resulting in the movement of rock and soil. These materials move down the slope in the form of fragments, flows, and cascades over a wide area. Therefore, reinforcement is required to prevent collapse. One commonly used reinforcement method is pile. The pile installation patterns frequently employed are parallel arrangements in single and double rows. However, there has been no installation using a U-shaped configuration. Thus, this study aims to numerically analyze the stability of a slope reinforced with piles in a U-shaped configuration and compare it with the existing slope conditions without reinforcement. The method used is finite element analysis with the strength reduction method (SRM). The software used in the numerical analysis is Plaxis 2D. The results of SRM numerical analysis show that reinforcement with a double contiguous U-shaped pile system is capable of improving slope stability. This is indicated by an increase in the safety factor (FoS) value of up to 57% compared to the unreinforced slope.

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Author Biographies

Muhammad Chofi Irnawan, Universitas Widya Kartika

is a lecturer in the Study Program of Civil Engineering, Universitas Widya Kartika. He is a lecturer in the Geotechnical Engineering expertise group. His research focuses on Geotechnical Engineering, Soil Mechanics, soil improvement, soil Stability, and Slope Stability. (email: chofiirnawan@gmail.com).

Muhammad Shofwan Donny Cahyono, Universitas Widya Kartika

is a lecturer and head of the study program in the Study Program of Civil Engineering, Universitas Widya Kartika. He is a lecturer in the Transportation Engineering expertise group. His research focuses on Transportation, Pavement Engineering, Geotechnics, and Slope Stability. (email: shofwandonny@widyakartika.ac.id).

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