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Jurnal Teknik Sipil dan Perencanaan
Published by Universitas Negeri Semarang
ISSN : -     EISSN : 25031899     DOI : https://doi.org/10.15294/jtsp
Core Subject : Engineering,
Civil Engineering, Building, Construction & Architecture
Jurnal Teknik Sipil dan Perencanaan starting in 2024 migrates to better secure from various unwanted things, including journal hacking and so on. To submit, the author please visit the new website page of our journal at the link https://journal.unnes.ac.id/journals/jtsp
Arjuna Subject : Teknik (semua kategori) - Teknik Sipil dan Struktur
Articles 39 Documents
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Optimization of Vehicle Queue Length Using PTV Vissim at Talang Buluh Intersection, Banyuasin Regency Muhammad Azhar Baskoro; Melawaty Agustien; Rhaptyalyani
Jurnal Teknik Sipil dan Perencanaan Vol. 27 No. 1 (2025): Jurnal Teknik Sipil dan Perencanaan
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jtsp.v27i1/19750

Abstract

Traffic congestion is a common issue in developing metropolitan areas, impacting both economically and socially. Long vehicle queues result in delays for many vehicles, which increases travel time and contributes to deteriorating air quality due to emissions from motor vehicles at intersections. One of the influencing factors is the non-optimization of intersections due to delays. Previous studies commonly use the Highway Capacity Manual Indonesia, 2023, to analyze intersection optimization. However, this study will utilize PTV Vissim software. In planning the intersection, some factors must be considered, such as capacity, density, speed, and type. An average daily traffic survey and a road geometric survey will be conducted in the field survey. The analysis will be performed using PTV Vissim software to optimize the 3 (Three) Talang Buluh intersection in Banyuasin Regency by examining the impact of vehicle queue length and evaluating policies for improving traffic management. According to the analysis results, the data from the First Scenario shows that the maximum vehicle queue length reaches 124.02 meters, with an average delay of 18.75 seconds from the Palembang direction. In the second scenario, installing traffic signal control devices increased the queue length to 287.95 meters from the Betung direction, with the most extended delay reaching 129.52 seconds. The third scenario, which involved geometric changes at the intersection, successfully reduced the vehicle queue length to just 47.70 meters from the Palembang City direction. Additionally, the most extended delay recorded was only 11.59 seconds, demonstrating the effectiveness of this approach, though it is costly and unsuitable for short-term use. Overall, Scenario 1 can serve as a short-term solution for intersection optimization. However, if road widening improvements are feasible, Scenario 3 is the optimal solution for enhancing traffic efficiency and effectiveness, significantly reducing vehicle queues and delays. This is crucial for implementing long-term traffic management strategies at the Talang Buluh Intersection in Banyuasin Regency.
Application of The Building Infill Concept in New Buildingswithin the Historic Semarang Old Town Area PRAMESTI, CIPTETY TRISYA; SARDJONO, AGUNG BUDI
Jurnal Teknik Sipil dan Perencanaan Vol. 27 No. 1 (2025): Jurnal Teknik Sipil dan Perencanaan
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jtsp.v27i1/21133

Abstract

The Old City of Semarang, as a national-level cultural heritage site, has inherited its function as a cultural center with unique architecture and urban layout that has remained. Over time, the development of the economy and high tourism demands exert significant pressure on the city's heritage. New functions with their commercialism often lead to inappropriate new buildings that potentially threaten the historic area's authenticity. Applying the infill building concept becomes a conservation solution that emphasizes optimizing vacant spaces in well-developed urban areas, including historic areas. Research has been conducted on several new buildings in the Semarang Old City that have changed in function and physical appearance. This research aims to analyze the existing conditions of new buildings and examine how infill development can be applied to structures in historical areas without damaging the architectural characteristics. The method employed includes descriptive analysis of observed objects by observing buildings, analyzed based on elements within the building infill approach. The results indicate that applying infill building in new constructions in the Old Town area requires a sensitive design approach, considering several elements, including mass, height, material color, ornamentation, and harmonious integration with the surrounding historical buildings. Additionally, it is suggested to the government that this research can initiate more detailed policies and active supervision regarding the construction of new buildings to maintain their authenticity. In conclusion, building infill can be an effective solution to support the economic development of historical areas without compromising cultural heritage, provided it is carried out with proper planning and regulations.
Feasibility Study on the Use of Fly Ash and Bottom Ash as Aggregate Substitutes in  the Subbase  Layer of Road Pavement M Arief Firdaus; Rini Kusumawardani; Nirima Ramadhani; Zahra Aulia Putri
Jurnal Teknik Sipil dan Perencanaan Vol. 26 No. 1 (2024): Jurnal Teknik Sipil dan Perencanaan
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jtsp.v26i1.27690

Abstract

This study used fly ash and bottom ash (FABA) waste as a substitute for aggregate in the road subbase layer. The initial mixture included FABA with a depth of 1 meter and 7 meters without mixing other materials. This mixture is differentiated into two variations with a ratio of variation I (70:30) and variation II (70:30), each fermented for 14 days. The test results showed that the FABA material did not meet the specification of SNI 6388:2015 for class B foundation layers, with a maximum immersion CBR value of 25.32% in variation I and 18.99% in variation II. This study evaluates the feasibility of using FABA as an aggregate substitute material in the subbase layer of road pavement. From the results obtained, FABA material has the potential to be used in subbase construction. Still, adding other materials such as cement or lime is necessary to increase the carrying capacity and meet the set specifications
Analysis and Monitoring of Land Subsidence Phenomena in Tambak Lorok, Semarang City Using the In-sar Method Fadhila Tiara A; Rini Kusumawardani
Jurnal Teknik Sipil dan Perencanaan Vol. 26 No. 1 (2024): Jurnal Teknik Sipil dan Perencanaan
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jtsp.v26i1.27692

Abstract

Rapid urbanization and infrastructure expansion in Semarang, particularly in the northern coastal areas, have led to significant land subsidence. Tambak Lorok, located in Tanjung Mas Sub-district, is among the affected areas, with key contributing factors including soft young alluvial soils, excessive groundwater extraction, infrastructure loads, coastal sediment dynamics, and tidal fluctuations. To understand the patterns and rates of land subsidence, this study employs the Interferometric Synthetic Aperture Radar (InSAR) method using the  Sentinel Application Platform (SNAP). The methodology involves the analysis of Sentinel-1A satellite imagery (2020–2024), Digital Elevation Model (DEM) mapping, and examination of changes in watershed (DAS) areas. Additional data were gathered through local community interviews and analysis of Google Maps and DEM data from 2018–2024. Long-term InSAR monitoring reveals that certain areas in North Semarang's coastal zone are subsidining at rates between -0.16 to -0.23 meters per year. Data validation was conducted through triangulation to ensure result accuracy. These findings highlight the need for more effective mitigation strategies, such as stricter groundwater management, adaptive infrastructure upgrades, and spatial planning that considers subsidence risks. Furthermore, remote sensing technology should be complemented with ground-based monitoring to ensure more accurate and data-driven mitigation strategies. The outcomes of this research are expected to serve as a basis for disaster mitigation and sustainable coastal spatial planning
Interpretation of Subgrade Conditions Beneath Flexible and Rigid Pavement Layers Using Ground Penetrating Radar (GPR) Detria Ardhila Kumala Sari; Rini Kusumawardani
Jurnal Teknik Sipil dan Perencanaan Vol. 26 No. 1 (2024): Jurnal Teknik Sipil dan Perencanaan
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jtsp.v26i1.27694

Abstract

Ground Penetrating Radar (GPR) is a device commonly utilized in non-destructive testing (NDT) applications. Its principal advantage lies in its non-invasive nature, allowing for subsurface exploration without causing damage to existing structures or the surrounding environment. Due to this characteristic, GPR has become a leading technology in subsurface investigation. GPR is regarded as an optimal solution for rapidly and efficiently assessing subsurface conditions without inflicting damage on the pavement surface. In this research, GPR technology is employed to analyze the subgrade layers beneath flexible (asphalt) and rigid (concrete) pavements, with the objective of enhancing the effectiveness and sustainability of road maintenance strategies. The data acquisition process is supported by the GAS XPC software for field data recording, while data processing is conducted using GPRSoft and GSSI RADAN 7. A comparison between raw and processed data reveals distinctions that facilitate a more in-depth analysis. Furthermore, discrepancies in data interpretation were observed between the outputs of GPRSoft and GSSI RADAN 7. These differences serve as valuable references for refining data analysis methods and improving the accuracy and reliability of future GPR-based investigations
Analysis of the Finite Element Method in Reinforcing Soft Soil using Geotextiles Pranadya Krida Palgunadi; Togani Cahyadi U
Jurnal Teknik Sipil dan Perencanaan Vol. 26 No. 1 (2024): Jurnal Teknik Sipil dan Perencanaan
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jtsp.v26i1.27695

Abstract

This study focuses on the analysis of the finite element method for soft soil reinforcement using geotextiles in the Tambak Lorok area, Tanjung Emas Village, Semarang Utara District, Central Java. The research location was selected because this area is experiencing rapid economic and infrastructure development, but faces significant soil subsidence issues due to the high swelling-shrinking potential of clay soil. This subsidence negatively impacts building stability as well as the social and economic lives of the community. This study aims to evaluate the stability of fill soil with and without geotextile reinforcement using Plaxis 2D software. The research method used is quantitative, with analysis using Plaxis 2D to evaluate the stability of the original fill soil with and without geotextile reinforcement. The data used includes secondary data from government agencies and primary data from standard penetration tests (SPT) as well as interviews with local residents. This study is limited to the location on Tambak Mulyo Road, with aspects reviewed including the extent of soil subsidence and the safety factor of the fill. The software used is PLAXIS 2D, and Google Maps historical data and interview results are used for data validation. The analysis results show that the stability level of the original fill soil without geotextile tends to be lower, with significant soil settlement at the measurement point. Before the application of geotextile, the safety factor value of the fill soil was 1.407. After the application of geotextile with a tensile strength of 200 kN/m², the safety factor increased to 1.507. These results indicate that the use of geotextile is effective in enhancing the stability of fill soil in the Tambak Lorok area, North Semarang.
Correction of SPT (Standard Penetration Test) between Comparison of Energy Measurement in the Field and Seed Method (1985) Muhammad Farhan Syahputra; Togani Cahyadi U
Jurnal Teknik Sipil dan Perencanaan Vol. 26 No. 1 (2024): Jurnal Teknik Sipil dan Perencanaan
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jtsp.v26i1.27696

Abstract

The use  of the Standard Penetration Test (SPT) method has a very important role in the field of geotechnical engineering, especially in obtaining information related to soil characteristics under the surface. The data obtained from the SPT test is widely used in various applications, one of which is slope stability analysis, especially in areas with high potential for landslide disasters. This research was conducted as a form of the author's scientific contribution in highlighting the difference in energy produced by the SPT tool in the field compared to the results of the theoretical calculation approach. The research methodology includes the collection of data from the results of tax return testing in the field, which is then analyzed using the calculation method of the Seed method (1985). In the energy measurement in the field, the energy ratio (ER) was obtained of 56.3-77.7%. The average energy measurement at the BH-1, BH-2, and BH-3 test points was obtained at 70.9% each; 70.4%; and 64.8%. The results of the correction comparison showed the difference between the energy return from the energy measurement test in the field and the theoretical calculation. At depths of 0-10m it is 7-32% and at depths of 10-20m it is 7-15%. Corrections using the Seed method (1985) showed a relatively higher error rate compared to the results of direct energy measurements in the field. Taking this into account, the use of energy data obtained directly is considered more representative of actual conditions in the field and more reliable in the correction value of tax returns.
Interpretation  of Ground Penetrating Radar (Gpr) to Determine the Depth of Pipe Objects in the Sandbox Dwi Sri Wahyudi; Rini Kusumawardani
Jurnal Teknik Sipil dan Perencanaan Vol. 26 No. 1 (2024): Jurnal Teknik Sipil dan Perencanaan
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jtsp.v26i1.27698

Abstract

Ground Penetrating Radar (GPR) is a non-destructive inspection technology that utilizes electromagnetic (EM) waves to map subsurface structures. This study focuses on estimating the diameter and depth of buried cylindrical objects, especially pipes, using GPR. This research was carried out through laboratory experiments using a box filled with dry sand. GPR data is processed using matGPR software to analyze hyperbolic reflections generated by buried objects. matGPR is software used for mathematical calculations of all three software. The speed of the EM wave is calculated based on the dielectric properties of the sand, and the depth and diameter of the pipe are estimated using a mathematical model derived from hyperbolic reflection. The results showed that the pipe depth estimate had a low error percentage, generally below 5%, which indicated high accuracy in GPR measurements, pipe A showed an estimated depth of 16.2 cm with the result obtained an error percentage of 1.8%, pipe B showed an estimated depth of 15.3 cm with the result obtained an error percentage of 1% and pipe C showed an estimated depth of 13.7 cm with the result obtained The error percentage is 2.2 %.The study concludes that GPR is an effective tool for estimating the depth of buried objects, especially in a controlled environment such as a sandbox. However, factors such as burial depth, pipe material, and dielectric properties of the medium can affect the accuracy of the measurement. Future research should consider using varied pipe materials and deeper burial depths to further validate the reliability of this method under field conditions.
COMPARISON ANALYSIS OF LINEAR SCHEDULING METHOD (LSM) WITH PRECEDENCE DIAGRAMMING METHOD (PDM) ON DP MALL EXPANSION CONSTRUCTION PROJECT M. Faizal A A; Anthonius Baraa; Galang Satrio; Agung Budiwirawan
Jurnal Teknik Sipil dan Perencanaan Vol. 26 No. 1 (2024): Jurnal Teknik Sipil dan Perencanaan
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jtsp.v26i1.27702

Abstract

The objective of this study is to analyze the comparison between the Linear Scheduling Method (LSM) and the Precedence Diagramming Method (PDM) in the DP Mall Expansion Project. The main focus of the research is to compare time efficiency, labor cost, and productivity in supporting construction with repetitive tasks. Project scheduling plays a crucial role in construction project development. In the construction industry, more focused scheduling is required for specific types of projects. This study uses a quantitative approach, specifically descriptive-comparative, to compare and analyze project scheduling using the Linear Scheduling Method (LSM) and the Precedence Diagramming Method (PDM). Scheduling analysis and preparation were carried out using Microsoft Excel and Microsoft Project. The scheduling was conducted under two scenarios: normal and accelerated. The analysis focused on architectural works, particularly regarding differences in project duration, labor wage costs, and the effectiveness of scheduling methods for repetitive work. The results show a significant difference between the two scenarios (normal and accelerated) in the Linear Scheduling Method (LSM). However, the accelerated scenario using both LSM and PDM produced the same total duration, number of workers, and labor wages due to the logical dependency relationships in PDM being applicable to LSM. LSM scheduling is more effective for repetitive work, while PDM is less effective for such projects.  This research provides practical contributions for project managers in selecting the appropriate scheduling method according to the specific characteristics of a project. The results indicate that the Linear Scheduling Method (LSM) can be integrated into projects with repetitive tasks to achieve operational sustainability. This study presents a comprehensive analysis of the efficiency of scheduling methods in repetitive construction projects, contributing to project success in terms of time and cost.
Repetitive Construction Scheduling Using Line of Balance (Case Study: One of the 6-Storey Polyclinic Building Construction Project in Batang Regency) Winata, Dwiki Pandu; Agung Budiwirawan; Muhammad Faizal Ardhiansyah Arifin; Irfandi Saputra Tua Saragi
Jurnal Teknik Sipil dan Perencanaan Vol. 27 No. 2 (2025): Jurnal Teknik Sipil dan Perencanaan
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jtsp.v27i2.5088

Abstract

Repetitive work is often encountered by contractors, so effective planning is needed so that the project can achieve its goals within the set time limit. One aspect of planning is project scheduling, which is a method that is used in construction work. One of the scheduling methods suitable for repetitive construction is a line of balance. Therefore, this research was conducted using the line of balance method on a repetitive multi-story building project to find out whether the line of balance can properly organize project implementation. The results of the analysis and calculations that have been carried out obtained the duration required to complete the construction project of the 6-story polyclinic building for 274 days. The schedule in the project plan takes 308 days to complete the project. By comparing the effectiveness of the time whose duration is at odds with 34 days, the schedule plan using the line of balance method is more effective and efficient in completing the construction project of the 6-story polyclinic building in Batang Regency. 

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