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All Journal Journal of Advanced Civil and Environmental Engineering Jurnal Impresi Indonesia
Rifqi Brilyant Arief, Rifqi Brilyant
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Religion Civil Engineering, Building, Construction & Architecture Economics, Econometrics & Finance Education Environmental Science Law, Crime, Criminology & Criminal Justice Social Sciences

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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.
Comparative Analysis of Cost, Quality, and Time on the Productivity of Deep Cement Mixing Work Between Subcontractors in the Probolinggo-Banyuwangi Toll Road Construction Project Section 2 Sholihin, Muhammad Yusuf; Wibowo, Kartono; Arief, Rifqi Brilyant
Jurnal Impresi Indonesia Vol. 4 No. 5 (2025): Indonesian Impression Journal (JII)
Publisher : Riviera Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58344/jii.v4i5.6484

Abstract

The Trans Java toll road project at the eastern end connects Probolinggo-Banyuwangi (Probowangi), along 171,516 km. Phase 1 of the Gending-Besuki section is being carried out. This study analyzed the difference in time, cost, and quality of deep cement mixing (DCM) work by 4 subcontractors in section 2 (STA 09+000 - STA 20+200) who carried out soil improvements before landfilling. Quantitative methods are used to compare time, cost, and quality. The results show the completion time of DCM: PT Keller Ground Indonesia (85 days), PT Leekang Jaya Konstruksi (116 days), and PT Geotekindo (31 days). Highest daily productivity: PT Geotekindo (428.63 m³/day), followed by PT Keller Ground Indonesia (280.32 m³/day) and PT Leekang Jaya Konstruksi (277.53 m³/day). The lowest DCM price is PT Geotekindo (IDR 681,296/m³), PT Leekang Jaya Konstruksi (IDR 706,980/m³), and the highest PT Keller Ground Indonesia (IDR 788,437/m³). Quality (UCS) of all subcontractors ? 1 MPa. Efficiency shows that subcontractors with high productivity have faster turnaround times, lower costs, and quality to standards.
Co-Authors Kartono Wibowo, Kartono Pratikso, P Sholihin, Muhammad Yusuf Yonas Prima Arga Rumbyarso