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Cantilever: Jurnal Penelitian dan Kajian Bidang Teknik Sipil
Published by Universitas Sriwijaya
ISSN : 19074247     EISSN : 24774863     DOI : 10.35139
Core Subject : Engineering,
Civil Engineering, Building, Construction & Architecture Engineering Transportation
Cantilever: Jurnal Penelitian dan Kajian Bidang Teknik Sipil is a research journal and study in civil engineering that presents research results in the fields of building and structural engineering, transportation, water resources engineering and management, geotechnical engineering, construction engineering and management, environmental engineering, and architecture. The journal was first published in 2006 in the printed version. Since 2015, Cantilever has been published both in the printed and online versions (e-journal). For the online version, previously, the journal could be accessed at http://cantilever.unsri.ac.id, but since Vol. 8 No.2 (2019), the journal is published at http://cantilever.id. This journal is managed and published by the Department of Civil Engineering and Planning, Faculty of Engineering, Sriwijaya University. The journal is published twice a year, in April and October. The Cantilever: Jurnal Penelitian dan Kajian Bidang Teknik Sipil aims to: 1) promote a comprehensive approach to civil engineering incorporating viewpoints of different disciplines, 2) strengthen academic exchange with other institutions, and 3) encourage scientists, practicing engineers, and others to conduct research and other similar activities. The journal presents the results of research and studies in the fields of civil engineering, architecture, and environmental engineering. The scope of this journal covers the topics: water resources engineering, transportation, geotechnical engineering, building and structural engineering, construction engineering and management, environmental engineering, and architecture.
Arjuna Subject : Teknik (semua kategori) - Teknik Sipil dan Struktur
Articles 96 Documents
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Simulasi Pengendalian Limpasan Permukaan dengan Penerapan Low-Impact Development di Kawasan Perumahan: Simulation of Surface Runoff Control with Low-Impact Development Implementation in Residential Area Yuono, Agus Lestari; Iryani, Sakura Yulia; Alia, Febrinasti; Al Amin, Muhammad Baitullah
Cantilever: Jurnal Penelitian dan Kajian Bidang Teknik Sipil Vol. 13 No. 2 (2024): Cantilever
Publisher : Department of Civil Engineering and Planning, Faculty of Engineering, Sriwijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35139/cantilever.v13i2.400

Abstract

Applying the Low-Impact Development (LID) approach in urban drainage systems can help control surface runoff, therefore mitigating the potential of flooding risk. However, its effectiveness varies widely, and various technical factors influence its performance. This study aims to determine the effectiveness and performance of LID units, namely bioretention and infiltration wells, in controlling surface runoff. The Center Park Housing area, covering an area of ​​11.53 hectares located in Palembang City, was chosen as the study area. The ability of the LID unit to reduce the volume and discharge of runoff, as well as the runoff coefficient, was simulated using the Storm Water Management Model (SWMM) program based on input from various design rainfall cases. There were four simulated design rainfalls, i.e. 108.76 mm (2-year return period), 133.20 mm (5-year), 149.38 mm (10-year), and 169.82 mm (25-year). The LID unit implementation scenarios were varied with the number of infiltration well units of 1 - 4 units per house plot. The number and area of ​​bioretention units were considered constant for all scenarios. The simulation results show that the LID implementation can reduce runoff volume and peak discharge and help decrease the runoff coefficient in the study area effectively, especially in the case of lower design rainfall (2-year). The performance of the infiltration wells unit in producing runoff losses is better than the bioretention unit because its construction structure has a larger storage capacity for a similar unit area. Although the LID method is quite effective in reducing runoff, its combination with conventional methods may produce better performance, so further research that discusses this needs to be addressed.
The Environmental Evaluation of the Sp. Opi – Babatan Saudagar – Srijabo Road: Evaluasi Lingkungan Ruas Jalan Sp. Opi – Babatan Saudagar – Jalan Srijabo Armo, Achmad Abraham Setiawan; Wijaya, Hendry; Sutejo, Yulindasari; Saloma; Juniah, Restu; Fathunnisa
Cantilever: Jurnal Penelitian dan Kajian Bidang Teknik Sipil Vol. 13 No. 2 (2024): Cantilever
Publisher : Department of Civil Engineering and Planning, Faculty of Engineering, Sriwijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35139/cantilever.v13i2.345

Abstract

The Public Works Agency for Highways and Spatial Planning of South Sumatra Province has the task of deconcentration in the field of roads and has authority over 88 roads with a length of 1,779.27 km spread across 17 districts and cities in South Sumatra Province. Not all provincial roads have an environmental evaluation document. The objective of the current research was to evaluate the environmental impact resulting from road operational activities in South Sumatra Province by taking data on ongoing activities, geological and topographic conditions, flora and fauna, socio-economic and cultural activities in the area, as well as measuring quality standards, which include air quality standards, noise, vibration, and water quality standards on the Sp. OPI - Babatan Saudagar - Srijabo Road. The conclusion of the current research shows that the ambient air quality, noise intensity, and vibration are still good and meet quality standards. The potential hydrogen (pH) and dissolved oxygen (DO) parameters in the Ogan River branch at the time of sampling for surface water quality did not meet the quality standards due to the type of soil, which tends to be acidic. Furthermore, the results of groundwater quality analysis show that the pH of groundwater measured in all locations is less than 6.5 or does not meet quality standards, which can cause an unpleasant taste when consumed, so processing is needed to increase the pH of groundwater.
The Satisfaction of Grab Users in Parepare City Using The Structural Equation Model: Kepuasan Pengguna Grab di Kota Parepare Menggunakan Model Persamaan Struktural Nur Ayatillah; Hakzah; Andriyani; Andi Bustan Didi
Cantilever: Jurnal Penelitian dan Kajian Bidang Teknik Sipil Vol. 13 No. 2 (2024): Cantilever
Publisher : Department of Civil Engineering and Planning, Faculty of Engineering, Sriwijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35139/cantilever.v13i2.307

Abstract

The challenges faced by the city of Parepare, South Sulawesi, in providing adequate public transportation have led many residents to rely on online transportation services such as Grab. The purpose of this study was to analyze user satisfaction with Grab using Structural Equation Modeling (SEM) version 23. This quantitative research involved a sample of 247 Grab Bike users in Soreang District, with data collected through questionnaires. The analysis included validity and reliability tests as well as model fit assessment. The results indicated that the variables tangible, empathy, reliability, responsiveness, and price had a positive and significant effect on customer satisfaction, while assurance did not. The model fit test revealed that some indices met the criteria, but others did not, such as TLI, NFI, CFI, and RMSEA, which showed a poor fit.
Kajian Risiko Bencana Alam Pada Tower SUTT 150 kV Bandung Timur – Ujung Berung Setiawan, Deni; Sitompul, Steven Hotmartua
Cantilever: Jurnal Penelitian dan Kajian Bidang Teknik Sipil Vol. 14 No. 1 (2025): Cantilever
Publisher : Department of Civil Engineering and Planning, Faculty of Engineering, Sriwijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35139/cantilever.v14i1.398

Abstract

Infrastructure—such as transportation, telecommunications, sanitation, and energy—forms the backbone of a country’s economic development. Within infrastructure projects, risk management plays a critical role in mitigating potential losses. One such system is the High Voltage Air Duct (SUTT), which distributes electricity from power plants—typically located far from urban centers—to end users. The 150kV East Bandung–Ujung Berung SUTT project involves 26 transmission towers supplying electricity from East Bandung to Ujung Berung. This study aims to identify natural disaster risks that may impact the 150kV SUTT towers in this project. The research was conducted on-site along the East Bandung–Ujung Berung transmission corridor. Using a qualitative approach and the AS/NZS 4360 risk management framework, natural disaster risks were mapped and analyzed. Findings indicate that earthquakes pose the most significant natural disaster risk to the 26 SUTT towers. The highest-ranked risk factor identified is the potential for tower foundations to collapse or shift due to seismic activity, which could lead to severe structural damage. This risk scored 18.32, placing it in the “very high” category. Another major risk is delayed emergency maintenance following a natural disaster, which can result in further deterioration and significantly reduce the towers’ service life. This risk scored 15.05, classified as “high”.
Karakteristik Tanah pada Kawasan Sawah Lebar Baru Kota Bengkulu dan Aplikasinya dalam Perancangan Geoteknik Rifqi, Fianco Fakhri; Mase, Lindung Zalbuin; Supriani, Fepy; Misliniyati , Rena; Hardiansyah
Cantilever: Jurnal Penelitian dan Kajian Bidang Teknik Sipil Vol. 14 No. 1 (2025): Cantilever
Publisher : Department of Civil Engineering and Planning, Faculty of Engineering, Sriwijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35139/cantilever.v14i1.416

Abstract

Soil is an essential and indispensable material in civil engineering and building design, affecting various construction works. The primary function of soil is to support the construction load built on it, so the soil must be able to carry the load. Each type of soil has different characteristics, so it requires special handling, both physically and mechanically. This research aims to determine the soil's physical and mechanical properties and its application using the finite element method in the Sawah Lebar Baru area, Bengkulu City. The Sawah Lebar Baru area is currently developing a new residential area. Based on the tests conducted, the soil in the area is classified as silt with high plasticity (MH). The tests include physical tests such as moisture content, volume weight, specific gravity, grain size analysis, and Atterberg limits, as well as mechanical tests such as free compressive strength test, consolidation test, and direct shear test. The results of this study provide information on the type, characteristics, physical and mechanical properties of soil, as well as its application in geotechnical design. The foundation design test results showed that the maximum vertical load was 32,900 kN/m², and the safety factor value was 3.047 for the 0.5 m depth variation. The maximum vertical load value in the foundation with a depth variation of 0.75 m is 67,500 kN/m², and the most significant safety factor value is 5.909. For the depth variation of 1 m, the maximum vertical load value is 118,050 kN/m², and the safe factor value is 9.864.
Analisis Tingkat Resapan Tanah Berdasarkan Pengukuran Permeabilitas Tanah pada Sub DAS Bendung Palembang Putri, Amalia Dwi; Saleh, Edward; Siswanto, Ari
Cantilever: Jurnal Penelitian dan Kajian Bidang Teknik Sipil Vol. 14 No. 1 (2025): Cantilever
Publisher : Department of Civil Engineering and Planning, Faculty of Engineering, Sriwijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35139/cantilever.v14i1.420

Abstract

The varying characteristics of soil in the Bendung watershed influence water infiltration processes, and soil permeability is an important indicator for assessing the soil's effectiveness in absorbing water. The relationship between permeability and water absorption capacity can help determine the risk level of waterlogging and flooding in the Bendung watershed. The study aims to analyze soil permeability variations in the Bendung watershed and their impact on flooding events. The method used is the Falling Head Test to accurately measure soil permeability at 14 locations, by measuring water height in a pipe inserted into the soil. Permeability values vary, with the highest value of 12.129 cm/hour in locations with sandy soil, while locations with clay content have lower permeability values, at 0.756 cm/hour. There is a connection between soil permeability and waterlogging. Soils with low permeability tend to cause water accumulation, increasing flood risk due to saturated soil. Conversely, high permeability indicates good water absorption capacity, as sandy soils have pores that effectively allow water to pass through. Soils with high sand content have higher permeability values, aiding water absorption in waterlogged areas. Clay soils have lower permeability and tend to cause waterlogging, increasing flood risk due to their saturated properties.
Identifikasi Sebaran Akuifer di Desa Geneng, Kabupaten Ngawi, Provinsi Jawa Timur Novianti, Yuniar; Saleh, Edward; Siswanto, Ari
Cantilever: Jurnal Penelitian dan Kajian Bidang Teknik Sipil Vol. 14 No. 1 (2025): Cantilever
Publisher : Department of Civil Engineering and Planning, Faculty of Engineering, Sriwijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35139/cantilever.v14i1.421

Abstract

Ngawi Regency is one of the largest rice-producing regions in East Java. However, this area faces challenges related to water availability due to relatively low rainfall, making adequate groundwater sources essential to support agricultural irrigation systems. Therefore, analyzing subsurface geological characteristics is crucial for mapping the presence and distribution of aquifers as one of the primary sources of irrigation water. This research uses the Vertical Electrical Sounding (VES) method using the Schlumberger configuration to identify water-bearing rock layers. Data acquisition was conducted at six measurement points located in dry areas to minimize potential bias caused by soil moisture or surface water. These six points form a rectangular area, allowing the development of one-dimensional and three-dimensional subsurface models using IP2WIN and RockWorks software, with adjustments based on regional geological conditions. The interpretation results show that the research area consists of clay layers, silt layers, and sand layers which are included in alluvium deposits (Qa), where the sand layer is indicated as an aquifer. The aquifer depth ranges from 5.3 to 75 meters, with thicknesses varying between 7 to 33 meters at each measurement point. This aquifer layer is confined between low-porosity clay and silt layers, indicating that the aquifer is likely to be classified as a confined aquifer.
Performance of Slab-on-Pile and Embankment Foundations in Soft Clay under Subsidence Conditions: A Case Study from Northern Java Setiawan, Yoga; Fathani, Teuku Faisal
Cantilever: Jurnal Penelitian dan Kajian Bidang Teknik Sipil Vol. 14 No. 1 (2025): Cantilever
Publisher : Department of Civil Engineering and Planning, Faculty of Engineering, Sriwijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35139/cantilever.v14i1.463

Abstract

The northern coast of Java is a critical economic corridor in Indonesia but faces severe geotechnical and environmental challenges, including erosion, flooding, and land subsidence. In the Semarang–Demak Plain, land subsidence is a major concern due to thick, compressible clay deposits and shallow groundwater, which pose significant risks to infrastructure stability. The Semarang–Demak Toll Road, connecting Semarang City and Demak Regency, was constructed using two foundation systems: slab-on-pile and embankment with prefabricated vertical drains (PVD). At the interchange between Pantura Road and the toll road, a slab-on-pile foundation was selected to address high settlement risks. This study evaluates and compares the performance of both foundation types using one-dimensional analysis and two-dimensional finite element analysis (FEA). The results show that the slab-on-pile system experienced settlements of 0.519 m (one-dimensional analysis) and 0.775 m (FEA), while the embankment with PVD resulted in significantly higher settlements of 2.533 m (one-dimensional analysis) and 1.038 m (FEA). The slab-on-pile foundation also achieved a shorter consolidation period and a higher safety factor. These findings confirm the effectiveness of the slab-on-pile system in minimising settlement and improving long-term performance under challenging soil conditions. The study underscores the importance of selecting appropriate foundation strategies in subsidence-prone coastal areas and provides practical insights for infrastructure planning and geotechnical design in similar environments.
Pemanfaatan Tar Residu Bio-Oil Limbah Tempurung Kelapa dengan Aditif Biochar dan Gondorukem Menjadi Bio-Aspal Afrah, Bazlina Dawami; Delli Saputri, Jasmine Fadhilah; Ramona Putri, Tiara Maharani; Ihsan Riady, Muhammad; Muzzaki, Ahmad Nabil
Cantilever: Jurnal Penelitian dan Kajian Bidang Teknik Sipil Vol. 14 No. 1 (2025): Cantilever
Publisher : Department of Civil Engineering and Planning, Faculty of Engineering, Sriwijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35139/cantilever.v14i1.378

Abstract

Indonesia still faces critical infrastructure issues, especially in road maintenance, with 31.9% of roads damaged and 15.9% severely damaged in 2021. It caused by the high production costs to achieve the best asphalt quality and the dwindling availability of petroleum raw materials. Without action, this could worsen infrastructure and disrupt connectivity, requiring a timely and effective solution. Therefore, there is a need for alternative renewable materials and simple methods of production. This research aims to obtain a bio-asphalt product that can compete with oil asphalt, using the main ingredient of tar (bio-oil) from coconut shell pyrolysis as well as additives in the form of biochar and gondorukem. This research was conducted through three stages: pyrolysis, distillation, and mixing. The pyrolysis stage was carried out at a temperature range of 300-400oC to obtain bio-oil. The distillation stage is carried out at 250oC to obtain tar. The mixture consists of 30% tar and 70% petroleum asphalt. The variations used are the type of additive and the percentage composition of the additive so that the most optimal bio-asphalt formulation is obtained. The Bio-asphalt superior product almost meets the five existing parameters, with a penetration value of 60/70, ductility of 132.33 mm, soft point of 52.8oC and flash point of 254oC, the specific gravity that does not meet is 0.965 gr/cc. Therefore, this research is a solution in the production of economical asphalt so that the welfare of an evenly distributed society in the field of infrastructure can be achieved.
Pengaruh Bubuk Talk dan Limbah Karbit Sebagai Substitusi Filler pada Campuran AC-WC Biyanti, Alifia Cikha; Rezkiyanni, Annisa; Indrayani; Kosim
Cantilever: Jurnal Penelitian dan Kajian Bidang Teknik Sipil Vol. 14 No. 1 (2025): Cantilever
Publisher : Department of Civil Engineering and Planning, Faculty of Engineering, Sriwijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35139/cantilever.v14i1.411

Abstract

Asphalt Concrete - Wearing Course (AC-WC) is one of the surface layers in the construction of highway flexible pavement. The composition consists of: asphalt, split stone, sand and stone ash. Asphalt serves as a filler of empty space between coarse, fine, and folder aggregates. The purpose of this study was to determine the Optimum of Asphalt Content (KAO) value used as a filler, Stability, Flow, VIM, VMA, VFA, and MQ in AC-WC asphalt mixtures using cement, talc powder and carbide waste as fillers. The uniqueness of the research on talc powder and carbide waste on AC-WC asphalt mixtures is to reduce and utilize carbide waste that is no longer used and utilize talc powder as an additional filler binder or material. Marshall testing using 6% Optimum of Asphalt Content (KAO) with variations of cement, talc powder and carbide waste of 0% Cement; 100% BTLK, 25% Cement; 75% BTLK, 50% Cement: 50% BTLK, 75% Cement; 25% BTLK, and 100% Cement; 0% BTLK. From the results of this test, it was found that a mixture of cement, talc powder and carbide waste in the ratio of 75%; 25% will improve stability, flow, VFA and MQ.

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