Claim Missing Document
Check
Articles

Found 2 Documents
Search
Journal : Journal of Advanced Civil and Environmental Engineering

Modeling Studi Of Flexural Pavement on Soft Soil Using Plaxis 2d Software Rumbyarso, Yonas Prima Arga; Pratikso, P; Arief, Rifqi Brilyant
JACEE (Journal of Advanced Civil and Environmental Engineering) Vol 8, No 1 (2025): April
Publisher : Universitas Islam Sultan Agung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30659/jacee.8.1.47-54

Abstract

Road construction on soft soils presents significant technical challenges due to the natural properties of the soil such as low bearing capacity, high compressibility and limited shear strength. This study aims to analyze the response of soft clay soil to vertical loads under varying water infiltration conditions using numerical modeling with PLAXIS 2D software. Modeling was performed at a laboratory scale of 1:20 with a soft soil thickness of 57 cm and a 3 cm thick flexible pavement layer. Simulations were conducted under three water addition scenarios: 19%, 36%, and 53%, each with a waiting period of 3 days before a load of 20.4 kg was applied. The simulation results showed that increasing the water content significantly affected the soil deformation (displacement), with vertical settlement values of 0.06128 mm, 0.1342 mm, and 1.039 mm for the 19%, 36%, and 53% scenarios, respectively. Meanwhile, the effective stress values also experienced a limited increase, namely 10.17 kN/m², 11.39 kN/m², and 11.41 kN/m². This finding indicates that although the effective stress increases numerically, saturated conditions due to high infiltration can actually decrease the overall stability of the soil.
Numerical Analysis Of Flexible Pavement On Soft Soil Using Finite Element Method Rumbyarso, Yonas Prima Arga
JACEE (Journal of Advanced Civil and Environmental Engineering) Vol 8, No 2 (2025): October
Publisher : Universitas Islam Sultan Agung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30659/jacee.8.2.1-7

Abstract

Road he construction of flexible pavement on soft clay subgrades faces challenges due to low bearing capacity, high compressibility, and sensitivity to moisture. This study analyzes the stress–strain response of soft clay using Finite Element Method with three water content scenarios: 19%, 36%, and 53%. The 2D model consisted of a 57 cm clay layer and a 3 cm pavement layer, with soil parameters obtained from laboratory tests and represented by the Mohr-Coulomb model. The results show that effective stress increased slightly with higher water content, from 10.57 kN/m² at 19% to 11.54 kN/m² at 53%. In contrast, displacement remained nearly constant at around 0.2046 mm. This indicates that while moisture variation affects stress distribution, it has minimal impact on soil deformation under the modeled conditions. These findings suggest that flexible pavement on soft clay may maintain stable deformation despite increased moisture, providing useful insights for pavement design on problematic soils.