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Civilla : Jurnal Teknik Sipil Universitas Islam Lamongan
Published by Universitas Islam Lamongan
ISSN : 25032399     EISSN : 26207222     DOI : https://doi.org/10.30736/cvl
Core Subject :
Jurnal Penelitian Teknik Sipil UNISLA (ISSN2503-2399) adalah jurnal ilmiah yang bertujuan untuk mengkomunikasikan hasil dan riset teknologi dalam rangka untuk pengembangan teknologi di bidang teknik sipil. Sasaran pembaca adalah para ilmuwan, akademis, serta praktisi dari bidang teknik sipil sebagai berikut: Rekayasa Struktural, Teknik Geotek, Rekayasa Sumberdaya Hidrolik dan Air, Rekayasa Transportasi, dan Manajemen Konstruksi.
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Articles 10 Documents
 1 
Search results for , issue "Vol 10 No 1 (2025): MARET" : 10 Documents clear
Management of Unsignalized Intersections (Case Study of Duren Intersection, Ciputat District) Muhammad Farid Renandes; A.R Indra Tjahjani; Pio Ranap Tua Naibaho
Civilla : Jurnal Teknik Sipil Universitas Islam Lamongan Vol 10 No 1 (2025): MARET
Publisher : Program Studi Teknik Sipil, Fakultas Teknik, Universitas Islam Lamongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30736/cvl.v10i1.1307

Abstract

Traffic congestion leads to significant losses in the form of extended travel times, fuel waste, and environmental degradation. This congestion primarily results from traffic volumes exceeding both highway and intersection capacities. To address these issues and ensure smooth traffic flow, it is crucial to evaluate intersection performance. This study focuses on the Duren Intersection in South Tangerang City, where Merpati Raya Street, Menjangan Raya Street, Cenderawasih Street, and KH. Dewantoro Street converge. The current situation at the Duren Intersection continues to cause congestion, as evidenced by traffic performance data. On weekdays during peak hours, the average vehicle queue length reaches 192.03 meters, with an average traffic delay of 42.153 seconds per vehicle, resulting in a Level of Service (LOS) E. On holidays, the peak hour average queue length is 128.71 meters, with an average delay of 25.126 seconds per vehicle, corresponding to a LOS D. Given these conditions, this study, titled "Arrangement of Unsignalized Intersections: A Case Study of Duren Intersection, Ciputat District," aims to analyze and propose improvements for the intersection's performance. The research will evaluate current traffic patterns, identify bottlenecks, and suggest potential solutions to enhance traffic flow and reduce congestion at this critical junction in South Tangerang City.
Optimization of Ready-Mix Concrete Quality at PT Kalla Beton Setiawan, Preza; Indri Rahmadhani Fitriana; Lukamnul Hakim; M Gilang Indra Mardika; Michael
Civilla : Jurnal Teknik Sipil Universitas Islam Lamongan Vol 10 No 1 (2025): MARET
Publisher : Program Studi Teknik Sipil, Fakultas Teknik, Universitas Islam Lamongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30736/cvl.v10i1.1316

Abstract

Quality control from raw material to finished ready-mix concrete is vital in the construction industry, where increasing demand aligns with industry growth projected at 4% annually. PT Bumi Sarana Beton (Kalla Beton) faces challenges in maintaining consistent quality due to variations in natural raw materials, which impact product quality and cost. This research investigates the company's quality control strategies, focusing on optimizing material selection and mix designs. Experimental research methods were used, including testing different mix proportions and assessing compressive strength and production costs. The study involved aggregate suitability testing, redesigning concrete mixes with fly ash, and evaluating cost-effectiveness. Findings show that using fly ash improves compressive strength and reduces costs. The research concludes that refined material selection and mix design strategies can enhance product quality and cost efficiency. Recommendations include further exploration of alternative materials, and rigorous quality control to sustain high production standards and maintain competitive advantage in the ready-mix concrete market
The Effect of Hot Sun on the Compressive Strength of Concrete on the Sukoharjo – Hargosari Road Section Putri Regina Wigatiningrum; Tantin Pristyawati; Marwahyudi; Dian Muhammad Rifai; Muhammad Yusuf Arifin
Civilla : Jurnal Teknik Sipil Universitas Islam Lamongan Vol 10 No 1 (2025): MARET
Publisher : Program Studi Teknik Sipil, Fakultas Teknik, Universitas Islam Lamongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30736/cvl.v10i1.1319

Abstract

This study discusses how much influence the hot sun has on the strength of concrete. Concrete is widely used in construction, because it is cheap and easy to implement. Still, it also requires extensive knowledge regarding the nature of the basic concrete material, how to make it, and when to lay it so that it can produce maximum quality and quality when the concrete is laidThe  research aims to find out how much influence the hot sun during casting has on the compressive strength of concrete. In this research, test specimens were made for the concrete mixture with a design compressive strength of f'c = 20 MPa, using a cylinder with a diameter of 15 cm and a height of 30 cm, and strength testing. press approach using hammer test. Casting was carried out in the morning, afternoon, and evening with different types of sunlight on one road section. The results of this research show that the hot sun during casting affects the compressive strength of the concrete produced. The heat of the sun is too hot, causing the concrete that is laid to crack easily and its compressive strength is low even though the concrete has been covered with geoteck and watered regularly.
Evaluation of Jongaya Drainage System in Makassar Due to Channel Network Changes Jasmine Rizkimukti; Yang Ratri Savitri; Anak Agung Ngurah Satria Damarnegara
Civilla : Jurnal Teknik Sipil Universitas Islam Lamongan Vol 10 No 1 (2025): MARET
Publisher : Program Studi Teknik Sipil, Fakultas Teknik, Universitas Islam Lamongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30736/cvl.v10i1.1331

Abstract

Makassar faces flooding challenges due to rapid urban development that lack of effective planning. Makassar faces heightened flood risks due to inadequate drainage infrastructure, particularly in areas with poor drainage systems and elevations between 0 and 4 meters above sea level. The city experiences substantial rainfall annually, as happened on February 13, 2023, which causes flooding at several points and is made worse by high tides. The study aims to investigate the existing conditions of the drainage channel in the Jongaya drainage system as well as evaluate the alternative condition proposed by the Public Works Agency of Makassar, assess planned flood discharge, determine channel dan Jeneberang Lama long storage capacity, and identify necessary drainage system support facilities.  Based on the simulation analysis results using Storm Water Management Model (SWMM) 5.2, flooding still occurs in the existing condition with a volume of 169,521 m³, as well as in the alternative condition with a volume of 148,477 m³. An evaluation was conducted for both conditions involving redesigning cross-sections, adjusting elevations, and planning 4 pumps and 2 sluice gates at the storage area outlet, which subsequently eliminated flooding in both conditions. The flood design observed in both conditions are 103.43 m³/s and 77.48 m³/s respectively.
Handling Of Unsignalized Intersections (Simpang Haji Rais) In South Tangerang City Heris Cahya Kusuma; Tjahjani, AR Indra; Naibaho, Pio Ranap Tua
Civilla : Jurnal Teknik Sipil Universitas Islam Lamongan Vol 10 No 1 (2025): MARET
Publisher : Program Studi Teknik Sipil, Fakultas Teknik, Universitas Islam Lamongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30736/cvl.v10i1.1336

Abstract

The H. Rais intersection in South Tangerang City is an intersection with three arms without traffic signals. Simpang H. Rais is a meeting of three roads, namely Jl. H. Jamat Gg. Rais, Jl. Puspitek Segment 1, and Jl. Puspitek Segment 2. This intersection often experiences long queues due to inadequate intersection capacity so that it is unable to accommodate the volume of vehicles during morning and evening rush hours. The research method used was a direct survey method at the research location to collect traffic data at Simpang H. Rais and the surrounding roads. From the research results, the average length of the queue before handling during peak hours on weekdays is 168.52 m and delays are 35,471 with a level of service (LOS) D, while the average length of the queue before handling during peak hours on holidays is 119 .82 m and a delay of 33.52 with a level of service (LOS) D. In the next 5 years, the performance of Simpang H. Rais before handling will become worse with the result that the average queue length during weekday peak hours is 219.64 m and a delay of 49,137 with an intersection service level (LOS) E, while the average queue length during holiday peak hours is 218.28 m and a delay of 43,635 with an intersection service level (LOS) E. Handling is being carried out at Simpang H. Rais in short-term scenario 1 is by fulfilling road equipment facilities and assigning traffic officers, and in short-term scenario 2 by widening the bend radius to a minimum of 7.8 m and widening the H. Jamat Gg road section. Rais becomes 6 m, while the treatment carried out at Simpang H. Rais in the long term is to change the Puspitek road type to 4/2-T with a width per direction of 6 m.
Analysis of Potential Hazards and Risks of Work Accidents by Using the HIRARC Method On Earthwork and Geosynthetics Kuncaravita, Sekar Ayu; Apriliani, Rizki Astri; Lawdy D.V, Muhammad; Indri Y, Dayat
Civilla : Jurnal Teknik Sipil Universitas Islam Lamongan Vol 10 No 1 (2025): MARET
Publisher : Program Studi Teknik Sipil, Fakultas Teknik, Universitas Islam Lamongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30736/cvl.v10i1.1350

Abstract

The world of construction always has potential hazards and risks that always endanger the safety and health of workers. The occurrence of work accidents is an event that is always unexpected and can cause losses, both for the construction company and the workers. This study aims to determine the potential hazards in an effort to reduce work accidents in the Banjarsari- Dukuh Tengah road improvement project in Sidoarjo Regency. The method used in this research is hazard identification risk assessment and risk control (HIRARC). The results showed that in the construction of the Banjarsari- Dukuh Tengah road improvement project in Sidoarjo Regency, especially in earthworks and geosynthetics, there were 10 jobs in the Banjarsari- Dukuh Tengah road improvement project in Sidoarjo Regency showing that the potential hazards were 2 activities classified as having a "low risk," 3 activities with a "medium risk," and 5 other activities with a "high" risk. To overcome these problems, suggestions for improvement are given so that workers carry out work activities in accordance with standard operating procedures (SOPs) and wear personal protective equipment (PPE).
Study of Groin Structure Planning On a River Bend In Padang Mancang Village Muhammad Arrie Rafshanjani amin; SAFRIANI, MEYLIS; Cut Suciatinas Silvia; Delfian Masrura; Safrizal
Civilla : Jurnal Teknik Sipil Universitas Islam Lamongan Vol 10 No 1 (2025): MARET
Publisher : Program Studi Teknik Sipil, Fakultas Teknik, Universitas Islam Lamongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30736/cvl.v10i1.1352

Abstract

The river flows naturally from its source (upstream) to its mouth (downstream). Due to its velocity, riverbank erosion often occurs, especially in curved sections. In meandering rivers, unstable soil can lead to landslides on the outer banks. One affected area is Padang Mancang Village, Kaway XVI Subdistrict, West Aceh Regency. This study aims to design a suitable groin structure to mitigate erosion. The design process considers a 50-year return period flood (Q50), soil properties, and river cross-section data. The proposed groin structure has a length of 30 meters, a foundation width of 10 meters, a top width of 3 meters, and a height of 12 meters. The flood discharge is 2885.307 m³/s. Stability analysis confirms the structure is safe, with safety factors of 3.06 for overturning and 1.89 for sliding, both exceeding the minimum 1.5. The foundation is stable, with a maximum stress of 2.076 kg/cm², below the allowable 7.71675 kg/cm². These results indicate the groin structure effectively prevents riverbank erosion while ensuring structural stability.
Analysis of Heavy Equipment Productivity in the Construction of the Surabaya State Polytechnic Integrated Lecture Building Project Zulfar, Mochamad Ilham; Fernanda Arya Pramudya; Aulia Dewi Fatikasari
Civilla : Jurnal Teknik Sipil Universitas Islam Lamongan Vol 10 No 1 (2025): MARET
Publisher : Program Studi Teknik Sipil, Fakultas Teknik, Universitas Islam Lamongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30736/cvl.v10i1.1356

Abstract

Building construction is intensively carried out in Indonesia. That is because Indonesia is a developing country that needs quite a lot of infrastructure, be it buildings, offices, roads, bridges, or ports, especially at the Surabaya State Shipbuilding Polytechnic which is building an Integrated Lecture Building. The development process certainly does not escape the need for heavy equipment, such as excavators. Heavy equipment is a crucial requirement in building construction projects, this is because heavy equipment is a means of supporting work in the project, for example excavation work. Because excavators are important tools in building construction projects, it is necessary to analyze the productivity of heavy equipment. This study aims to analyze the productivity of excavators so that they can improve operational efficiency, save costs, and determine the duration of work. 
Prioritization Of Enhancing Environmental Road Infrastructure In Slum Residential Zones M.Arma Muslimin; Heni Fitriani; Febrian Hadinata
Civilla : Jurnal Teknik Sipil Universitas Islam Lamongan Vol 10 No 1 (2025): MARET
Publisher : Program Studi Teknik Sipil, Fakultas Teknik, Universitas Islam Lamongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30736/cvl.v10i1.1398

Abstract

This research was conducted using the AHP method to determine how to prioritize the handling of environmental roads in Pemulutan District, Ogan Ilir Regency. This research aims to prioritize the villages for environmental road handling in Pemulutan District, Ogan Ilir Regency. We employ a quantitative research approach, collecting data based on the established criteria. The data used includes secondary data and primary data. The stages of the research conducted include problem identification, followed by location determination, literature study, criteria determination and questionnaire design, data collection, data analysis using the Expert Choice application, and conclusion making. The research results show that among the several criteria established, the criteria of environmental road condition have 26,6% in determining the priority for environmental road improvements in the slum areas of the Pemulutan sub-district. We have identified Ibul Besar II Village as the village with the highest priority.
Study on the Ductility Behavior of Reinforced Concrete Columns with 10 mm Shear Reinforcement Diameter under Variable Axial Loads Aldivonso Tambunan; Hasibuan, Samsul Abdul Rahman Sidik
Civilla : Jurnal Teknik Sipil Universitas Islam Lamongan Vol 10 No 1 (2025): MARET
Publisher : Program Studi Teknik Sipil, Fakultas Teknik, Universitas Islam Lamongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30736/cvl.v10i1.1410

Abstract

Understanding the ductility behavior of reinforced concrete columns is critical for ensuring structural safety in seismic regions, yet there remains limited research on the specific effects of shear reinforcement diameter under varying axial loads. This research investigates the ductility behavior of reinforced concrete columns with a 10 mm shear reinforcement diameter under varying axial loads of 1000 kN, 2500 kN, and 5000 kN. The study aims to understand the effect of shear reinforcement on the ductility of columns and how varying axial loads influence their performance. Numerical modeling was performed using Xtract software, with columns designed to have dimensions of 600 mm x 600 mm (unconfined) and 450 mm x 450 mm (confined). The study focuses on key parameters such as curvature at initial load, curvature at first yield, ultimate curvature, and moment-curvature relationships. The results show that as the axial load increases, the curvature ductility decreases, with the column under 1000 kN demonstrating the highest ductility and the column under 5000 kN showing the lowest. The findings highlight the significant role of shear reinforcement in enhancing the ductility of columns, suggesting that optimal reinforcement design is crucial for ensuring structural resilience under variable loading conditions.

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