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All Journal MEDIA KOMUNIKASI TEKNIK SIPIL Jurnal Teknik ITS IPTEK Journal of Proceedings Series Journal of Engineering and Technological Sciences Syntax Literate: Jurnal Ilmiah Indonesia Civil Engineering Dimension Jurnal Aplikasi Teknik Sipil Jurnal Transportasi: Sistem, Material, dan Infrastruktur Jurnal Intake : Jurnal Penelitian Ilmu Teknik dan Terapan Jurnal Manajemen Teknologi dan Teknik Sipil (JURMATEKS) Journal of Infrastructure and Facility Asset Management Jurnal Impresi Indonesia Indonesian Geotechnical Journal Jurnal Konstruksi dan Infrastruktur : Teknik Sipil dan Perencanaan Riwayat: Educational Journal of History and Humanities
Lastiasih, Yudhi
Civil Engineering Department, Faculty Of Civil Engineering And Planning, Institut Teknologi Sepuluh Nopember
Religion Humanities Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Law, Crime, Criminology & Criminal Justice Library & Information Science Mathematics Mechanical Engineering Social Sciences Transportation Other

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Journal : Jurnal Manajemen Teknologi dan Teknik Sipil (JURMATEKS)

 1 
Alternatif Perencanaan Oprit Jembatan Batanghari (STA 15+750) di Jalan Tol Ruas Jambi – Rengat Irfanil Azami, Fikri; Lastiasih, Yudhi
Jurnal Manajemen Teknologi & Teknik Sipil Vol. 7 No. 2 (2024): DECEMBER
Publisher : Kadiri University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30737/jurmateks.v7i2.6288

Abstract

Batanghari Bridge is part of the Jambi-Rengat Toll Road, faces significant challenges due its clay as the topsoil and dominant stratigraphy of sand. These contdition lead to high settlement potential and stability issues under heavy loads, requiring innovative to enhance stability and control costs. This study aims to evaluate the effectiveness of a combination of mortar foam and ordinary soil on at the Batanghari Bridge (STA 15+750). Observations were made at 2 abutments. Embankment material variation include 100% ordinary soil, 100% mortar foam, and combinations of 25%, 50%, and 75%. Results reveal that land subsidence from embankment loads and mortar foam remains high, necessitating alternative treatments. The findings indicate that for Abutment 1 benefits from Prefabricated Vertical Drain (PVD) and geotextile reinforcement, combined with 75% ordinary soil and 25% mortar foam. This approach reduces load and enhances stability at a cost of Rp29,045,321,602. Conversely, Abutment 2, with a 3-meter soft soil depth, achieves optimal results using 100% ordinary fill soil with replacement and geotextile reinforcement, costing Rp22,403,576,498. It was found that the differences in effective methods at Abutment 1 and Abutment 2 were caused by variations in subgrade conditions and soft soil depth at both locations. The study highlights the importance of tailoring embankment material and soil improvement methods to specific subgrade conditions. By demonstrating the effectiveness of combining material variations with soil improvement techniques, the findings contribute significantly to geotechnical engineering, offering practical, cost-efficient strategies for similar infrastructure projects    
Studi Mekanisme Kelongsoran dan Alternatif Penanganan Tanah Lunak Pada Ruas Jalan Tol Indrapura – Kisaran (STA 112+850 – STA 112+900) Haririi, Adnan; Wahyudi, Herman; Lastiasih, Yudhi
Jurnal Manajemen Teknologi & Teknik Sipil Vol. 8 No. 1 (2025): JUNE
Publisher : Kadiri University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30737/jurmateks.v8i1.6652

Abstract

Embankment stability is a critical aspect of transportation infrastructure projects, especially in constructing on soft soil. Soft soil has low bearing capacity, high compressibility and low permeability. These characteristics increase the risk of structural failure, such as landslides and excessive settlement necessitating appropriate reinforcement methods. Beyond safety consedirations, soil strengthening must also factor in cost-effectiveness and construction time  to ensure an efficient and economical approach. This study aims to evaluate the effectiveness of Prefabricated Vertical Drain (PVD), geotextile, spun pile, as well as a combination of PVD and geotextile reinforcement methods. Field investigations and laboratory test provided soil and geometric data. This data is used as input in modeling using a finite element approach with Plaxis 2D software. The analysis results include safety factor (SF) values, ​​which are then calculated for strengthening costs and implementation time. A multi-criteria analysis is employed to determine the most optimal reinforcement method based on SF, cost, and implementation duration. The results indicate that the combination of PVD and geotextile provides the highest value, with a safety factor of 1.73, construction costs of IDR 1.57 billion, and implementation duration of 90 days. This strengthening is able to balance the three aspects considered. The combination of PVD which accelerates consolidation and geotextiles which strengthen the embankment structure has been proven to increase stability without significantly increasing costs. These findings contribute to the optimization of soft soil strengthening strategies in selecting efficient and economical strengthening methods.
Co-Authors Adrian Hartanto Ali Kurniawan Ngunaidi Anambi Mono Yudianto Apriana Hanggara Dewi FX Toha handoko, yohan Haririi, Adnan Herman Wahyudi Indra Djati Sidi Indra Djati Sidi Indra Giri Angga Kusuma Indrasurya B. Mochtar Indrasurya B. Mochtar Indrasurya B. Mochtar Indrasurya B. Mochtar Indrasurya B. Mochtar Indrasurya B. Mochtar Indrasurya Budisatria Mochtar Indrasurya Mochtar Irfanil Azami, Fikri Isti Qomariyah Izzuddin Ismawanto Kautsar Rizki Nashrullah Lalu Arpi Wartoyo Masiran, Hidayat Soegihardjo Masyhur Irsyam Moch. Alfian Putra Adi Mochtar , Indrasurya Budisatria MUHAMMAD ILHAM GUMILANG SYAFEI Muhammad Ivan Adi Perdana Muhammad Ivan Adi Perdana Nasya, Farah Noor Endah Mochtar, Noor Endah Nur 'Arfiati Shoffiana Nur ‘ Arfiati Shoffiana Peri Joni Permana, Muhammad Yuanto Pribadio, Nabila Cahayuni Putu Tantri K. Sari Putu Tantri KSari Putu Tantri Kumala Sari Rachmadan, Lutfianto Cahya Rakhman Taufik Rakhman Taufik Rewin Alif Bagus Wicaksono Riky Dwi Prasetyo Savira Amelia Ramadhan Septiandri, Rohmahillah Aviskanasya Setiawanda, Aditya Sugiarto Sugiarto Suwarno Suwarno Trihanyndio Rendy S, Trihanyndio Rendy Tsasca Dewi Arsyia Asyiffa Wahyudi, Herman Wahyudi, Herman Yudha Pratama Narra Putra Yudistira, I Gede Ngurah Arya Zefira Wisna Maulidha