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Analisis Risiko Pembangunan Mandalika Urban and Tourism Infrastructure Project Kawasan Ekonomi Khusus Mandalika Wawan Setiawan; Henny Pratiwi Adi; Rifqi Brilyant Arief
Journal of Mandalika Literature Vol. 6 No. 1 (2025)
Publisher : Institut Penelitian dan Pengembangan Mandalika (IP2MI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/jml.v6i1.3526

Abstract

This research aims to identify and assess the risks associated with the Mandalika Urban and Tourism Infrastructure Project (MUTIP) in the Mandalika Special Economic Zone (SEZ). The research methodology involves collecting secondary and primary data using risk identification techniques such as interviews and brainstorming. Data is then processed using likelihood and consequences scales to identify dominant risks and design effective mitigation strategies. The study's findings indicate that prominent risks include difficulties in land acquisition, unforeseen functional costs, and potential non-payment by guests. The results of the questionnaire-based research identify three main risks of concern to respondents: contractor credibility (40%), insufficient revenue from visitors (36.67%), and disturbances from the community (33.33%). These findings highlight the significant concern of respondents regarding critical factors that could impact the success of the project. This insight is crucial for project planning and risk mitigation.
Analisis Efektivitas Metode Deep Soil Mixing dalam Meningkatkan Stabilitas Tanah Lunak pada Konstruksi Jalan Tol Ababiel Ashabussidiq; Jerrico Naufal Hibban; Rifqi Brilyant Arief; Rinda Karlinasari
Journal of Engineering and Applied Technology Vol 2 No 1 (2026): : June: Scripta Technica: Journal of Engineering and Applied Technology
Publisher : CV SCRIPTA INTELEKTUAL MANDIRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.65310/663qz567

Abstract

The construction of toll roads on soft soil frequently encounters geotechnical problems in the form of excessive ground settlement and low embankment stability, which may lead to structural failure if appropriate ground improvement measures are not implemented. Deep Soil Mixing (DSM) is a ground improvement technique in which in-situ soil is mixed with a binding agent to increase shear strength and reduce soil compressibility. This study aims to analyze the effectiveness of the DSM method in improving the stability of soft soil for toll road construction and to evaluate the influence of variations in column spacing and depth on soil deformation and safety factors. The study was conducted as a case study of the Probolinggo–Banyuwangi Toll Road Development Project, Package 2, at STA 16+550–STA 16+600, using analytical approaches and numerical modeling based on the finite element method with PLAXIS 2D software. Analyses were performed for conditions without ground improvement and with DSM improvement using two configurations, namely a column spacing of 1.5 m with a depth of 8 m and a column spacing of 1 m with a depth of 6 m. The results indicate that the application of the DSM method significantly increases the safety factor and reduces soft soil deformation, with a closer column spacing configuration demonstrating more optimal performance in enhancing embankment stability.