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Jurnal Manajemen Teknologi dan Teknik Sipil (JURMATEKS)
Published by Universitas Kadiri
ISSN : -     EISSN : 26217686     DOI : http://dx.doi.org/10.30737/jurmateks
Core Subject : Engineering,
Civil Engineering, Building, Construction & Architecture Electrical & Electronics Engineering Engineering Transportation
JURMATEKS (Jurnal Mahasiswa Teknik Sipil) diterbitkan oleh Program Studi Teknik Sipil, Fakultas Teknik, Universitas KADIRI untuk menampung hasil penelitian, tugas akhir maupun tugas proyek mahasiswa teknik sipil di lingkungan Universitas KADIRI.
Arjuna Subject : Teknik (semua kategori) - Bangunan dan Konstruksi
Articles 313 Documents
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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 Eksperimental High Volume Fly ash Self-Compacting Concrete (HVFA SCC) dengan Penambahan 5% Silica Fume terhadap Sifat Reologi dan Mekanik Tiorivaldi, Tiorivaldi; Putra Abriantoro, Adji
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.v7i2.6319

Abstract

The development of concrete technology is an important part of supporting sustainable development. This development not only focuses on easy and efficient working methods, but also encourages the use of environmentally friendly materials such as fly ash and silica fume. This research aims to investigate the effect of varying fly ash content with the addition of silica fume on the mechanical and rheological properties of High Volume Fly ash Self-Compacting Concrete (HVFA SCC). Variations in fly ash content (0%, 50%, 55%, 60%, and 65%) with the addition of 5% silica fume. The parameters evaluated include flowability, compressive strength, and permeability.  Optimal flowability (750 mm) was achieved at 50–55% fly ash, making it suitable for complex structural applications. Compressive strength peaked at 48.7 MPa with 50% fly ash due to a balance of cement hydration and pozzolanic reactions, while higher fly ash content led to slight reductions. Permeability significantly decreased as fly ash content increased, from 84.1 mm at 0% fly ash to 6.08 mm at 65%, indicating enhanced matrix densification and water resistance due to fly ash's filler effect and pozzolanic activity. The study concludes that 50% fly ash offers the optimal balance, achieving a flowability of 720 mm, compressive strength of 48.7 MPa, and permeability of 58.7 mm. This research shows the potential of fly ash and silica fume as complementary materials to improve the performance of SCC, while recommending a balanced mix design between workability, strength and durability, supporting the development of environmentally friendly and sustainable concrete
Analisis Pengaruh Infiltrasi Hujan Terhadap Stabilitas Lereng STA 62+450 S/D 62+825 Jalan Tol Seksi Sp. Indralaya – Prabumulih Dengan Software Geo Studio Oktaliyani, Tiara; Soemitro, Ria Asih Aryani; Satrya, Trihanyndio Rendy
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.v7i2.6330

Abstract

The construction of the Indralaya-Muara Enim Interchange Toll Road, especially the Indralaya-Prabumulih Interchange Section, was hampered by landslides after excavation was carried out between STA 62+450 to 62+825. The combination of steep slopes and rain infiltration weakened the soil structure, increasing the risk of landslidesThis research aims to analyze the effect of rainwater infiltration on slope stability on the Sp Section Toll Road Project. Indralaya–Prabumulih. The research methodology used was to analyze landslide slope areas using the Slope/W and Seep/W programs from Geo Studio. This study evaluated different excavation heights and an initial excavation slope of 1:3. The focus is on calculating the safety factor (SF) at varying rain durations (1 hour, 3 hours, and 5 hours), with SF values below 1.5 indicating instability. The Safety Factor (SF) value of the existing soil before excavation was 1.58, but after 1 hour of rain, the SF decreased to 1.33 (15.66% decrease). After 3 hours, SF dropped to 1.13 (28.34% decrease), and reached 1.10 (30.24% decrease) after 5 hours. Strengthening slopes using the Hydroseeding method increases SF to 1.83, while the use of Retaining Wall increases SF more significantly to 2.54. This research reveals the impact of rain infiltration on soil stability and proves the effectiveness of slope strengthening methods. These results are an important basis for planning effective landslide mitigation on toll road excavations.
Analisis Alternatif Kelongsoran Bendungan Ameroro Pada Batuan Sekis Dengan Metode Elemen Hingga Setiawan, Herdy; Rendy Satrya, Trihanyndio
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.v7i2.6324

Abstract

The geological characteristics of Ameroro Dam,  dominated by schist metamorphic rocks, make this highly vulnerable to weathering, leading to reduced material strength and slope stability. This is exacerbated by rain infiltration which increases pore water pressure and earthquake loads which can trigger soil mass movement, causing a decrease in the slope safety factor.This study aims to evaluate the effect of a combination of environmental factors on slope stability using the finite element method. The research utilizes Plaxis 2D software to simulate various slope conditions under different scenarios, including static conditions, rain infiltration, and seismic loads. The results indicate that Under static conditions, the SF was 2.204, which decreased to 1.867 after rain infiltration, highlighting the adverse impact of water infiltration. To address these challenges, different reinforcement strategies were evaluated. The most effective solution was found to be the combination of 20 cm thick shotcrete, retaining wall, and 5-meter anchor, which increased the SF to 1.81, even under rain infiltration conditions. This combination enhances slope stability by providing surface protection, lateral support, and deep anchorage, effectively distributing loads and minimizing deformation risks. The findings can be the basis for developing optimized slope reinforcement strategies for dams with complex geological conditions.The geological characteristics of Ameroro Dam,  dominated by schist metamorphic rocks, make this highly vulnerable to weathering, leading to reduced material strength and slope stability. This is exacerbated by rain infiltration which increases pore water pressure and earthquake loads which can trigger soil mass movement, causing a decrease in the slope safety factor.This study aims to evaluate the effect of a combination of environmental factors on slope stability using the finite element method. The research utilizes Plaxis 2D software to simulate various slope conditions under different scenarios, including static conditions, rain infiltration, and seismic loads. The results indicate that Under static conditions, the SF was 2.204, which decreased to 1.867 after rain infiltration, highlighting the adverse impact of water infiltration. To address these challenges, different reinforcement strategies were evaluated. The most effective solution was found to be the combination of 20 cm thick shotcrete, retaining wall, and 5-meter anchor, which increased the SF to 1.81, even under rain infiltration conditions. This combination enhances slope stability by providing surface protection, lateral support, and deep anchorage, effectively distributing loads and minimizing deformation risks. The findings can be the basis for developing optimized slope reinforcement strategies for dams with complex geological conditions.
Studi Eksperimental High Volume Fly ash Self-Compacting Concrete (HVFA SCC) dengan Penambahan 5% Silica Fume terhadap Sifat Reologi dan Mekanik Tiorivaldi; Putra Abriantoro, Adji
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.v7i2.6560

Abstract

The development of concrete technology is an important part of supporting sustainable development. This development not only focuses on easy and efficient working methods, but also encourages the use of environmentally friendly materials such as fly ash and silica fume. This research aims to investigate the effect of varying fly ash content with the addition of silica fume on the mechanical and rheological properties of High Volume Fly ash Self-Compacting Concrete (HVFA SCC). Variations in fly ash content (0%, 50%, 55%, 60%, and 65%) with the addition of 5% silica fume. The parameters evaluated include flowability, compressive strength, and permeability.  Optimal flowability (750 mm) was achieved at 50–55% fly ash, making it suitable for complex structural applications. Compressive strength peaked at 48.7 MPa with 50% fly ash due to a balance of cement hydration and pozzolanic reactions, while higher fly ash content led to slight reductions. Permeability significantly decreased as fly ash content increased, from 84.1 mm at 0% fly ash to 6.08 mm at 65%, indicating enhanced matrix densification and water resistance due to fly ash's filler effect and pozzolanic activity. The study concludes that 50% fly ash offers the optimal balance, achieving a flowability of 720 mm, compressive strength of 48.7 MPa, and permeability of 58.7 mm. This research shows the potential of fly ash and silica fume as complementary materials to improve the performance of SCC, while recommending a balanced mix design between workability, strength and durability, supporting the development of environmentally friendly and sustainable concrete.
Analisis Pengaruh Infiltrasi Hujan Terhadap Stabilitas Lereng STA 62+450 S/D  62+825 Pada Proyek Jalan Tol Seksi Sp. Indralaya – Prabumulih Dengan Software Geo Studio Oktaliyani, Tiara; Asih Aryani Soemitro, Ria; Rendy Satrya, Trihanyndio
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.v7i2.6561

Abstract

The construction of the Indralaya-Muara Enim Interchange Toll Road, especially the Indralaya-Prabumulih Interchange Section, was hampered by landslides after excavation was carried out between STA 62+450 to 62+825. The combination of steep slopes and rain infiltration weakened the soil structure, increasing the risk of landslidesThis research aims to analyze the effect of rainwater infiltration on slope stability on the Sp Section Toll Road Project. Indralaya–Prabumulih. The research methodology used was to analyze landslide slope areas using the Slope/W and Seep/W programs from Geo Studio. This study evaluated different excavation heights and an initial excavation slope of 1:3. The focus is on calculating the safety factor (SF) at varying rain durations (1 hour, 3 hours, and 5 hours), with SF values ​​below 1.5 indicating instability. The Safety Factor (SF) value of the existing soil before excavation was 1.58, but after 1 hour of rain, the SF decreased to 1.33 (15.66% decrease). After 3 hours, SF dropped to 1.13 (28.34% decrease), and reached 1.10 (30.24% decrease) after 5 hours. Strengthening slopes using the Hydroseeding method increases SF to 1.83, while the use of Retaining Wall increases SF more significantly to 2.54. This research reveals the impact of rain infiltration on soil stability and proves the effectiveness of slope strengthening methods. These results are an important basis for planning effective landslide mitigation on toll road excavations.
Strategi Pengembangan Sertifikasi Kompetensi Tenaga Kerja Konstruksi Di Provinsi Sumatera Selatan Berbasis Kebutuhan dan Analisis SWOT Oktarina Mangindaan, Vanny; Fitriani, Heni; Zainal Arifin, Doedoeng
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.v8i1.6585

Abstract

Construction workforce certification is a critical issue in Indonesia's infrastructure development sector, as mandated by the Construction Services Law requiring all construction workers to obtain Work Competency Certificates (SKK). This study aims to formulate strategies for developing construction workforce construction workers in South Sumatra Province through the integration of demand analysis and SWOT analysis. A quantitative approach was applied, where secondary data were used to project certification needs for 105 construction projects planned under the 2025-2029 State Budget. In addition, primary data were collected through questionnaires and interviews identify key factors influencing SKK acquisition, which were then incorporated into the SWOT framework for strategic. Results revealed that while expert-level certification (Levels 7-9) needs are met with 1,792 certified professionals available, significant shortages exist at the technician/analyst level (Levels 4-6) with a gap of 2,139 positions and at the operator level (Levels 1-3) with a substantial deficit of 48,882 certified workers. Factor analysis identified self-motivation, wage increase prospects, time constraints, regulatory sanctions, and enhanced employment opportunities as key determinants in SKK acquisition decisions. The SWOT analysis concluded that a Strength-Opportunity (SO) strategy would be most effective, leveraging regulatory frameworks, digital certification processes, educational institution collaborations, and on-site certification to address the certification gaps. This research provides evidence-based recommendations for policymakers to develop targeted interventions that can strengthen construction workforce capacity and ensure compliance with national standards.
Analisis Alternatif Kelongsoran Bendungan Ameroro Pada Batuan Sekis Dengan Metode Elemen Hingga Setiawan, Herdy; Rendy Satrya, Trihanyndio
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.v7i2.6651

Abstract

The geological characteristics of Ameroro Dam,  dominated by schist metamorphic rocks, make this highly vulnerable to weathering, leading to reduced material strength and slope stability. This is exacerbated by rain infiltration which increases pore water pressure and earthquake loads which can trigger soil mass movement, causing a decrease in the slope safety factor.This study aims to evaluate the effect of a combination of environmental factors on slope stability using the finite element method. The research utilizes Plaxis 2D software to simulate various slope conditions under different scenarios, including static conditions, rain infiltration, and seismic loads. The results indicate that Under static conditions, the SF was 2.204, which decreased to 1.867 after rain infiltration, highlighting the adverse impact of water infiltration. To address these challenges, different reinforcement strategies were evaluated. The most effective solution was found to be the combination of 20 cm thick shotcrete, retaining wall, and 5-meter anchor, which increased the SF to 1.81, even under rain infiltration conditions. This combination enhances slope stability by providing surface protection, lateral support, and deep anchorage, effectively distributing loads and minimizing deformation risks. The findings can be the basis for developing optimized slope reinforcement strategies for dams with complex geological conditions.
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.
Kajian Kinerja Kombinasi Filler Tanah Putih dan Abu Sekam Padi pada Campuran Aspal AC-WC Anastasia Ipah Wuwur, Dewi; Budiman Pantas, Vinsensius; Rikardus Sodanango, Mateus; Bernadus Mbau, Reza
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.v8i1.6304

Abstract

The high cost and limited availability of conventional fillers in several regions necessitate the exploration of local alternative materials. This study investigates the potential use of white soil (limestone) and rice husk ash (RHA) as alternative fillers in Asphalt Concrete–Wearing Course (AC-WC) mixtures. The experimental research was conducted at the Kupang State Polytechnic Laboratory. White soil was sourced from East Penfui, while rice husk ash was collected from Oesao. Filler variations of 0%, 0.5%, 1%, 1.5%, and 2% were tested on 63 specimens in accordance with Bina Marga 2018 specifications. Marshall tests were performed to evaluate stability, VIM, VMA, VFA, flow, and MQ parameters. The results show that white soil filler optimally increased density and achieved desirable VIMand VMA values up to 1.5%, while rice husk ash enhanced flexibility but tended to increase voids at higher percentages. The optimum combination of both fillers was found at 0.75% total filler content, fulfilling all Marshall parameter standards specified by Bina Marga 2018. This study concludes that a carefully optimized combination of white soil and RHA is a viable, economical, and sustainable alternative filler for AC-WC pavement layers.

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