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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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Rainfall Duration’s Impact on Mining Earthmoving Equipment Performance – Case Study at PT. BUMA GEO-AJE, South Kalimantan Nandang Lukmanul Basar; Hartono; Siti Muawanah Robial
Jurnal Teknik Sipil dan Perencanaan Vol. 26 No. 2 (2024): Jurnal Teknik Sipil dan Perencanaan
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jtsp.v26i2.9013

Abstract

This study investigates the impact of rainfall duration on the performance of earthmoving equipment at PT BUMA, GEO-AJE, South Kalimantan. Data from April 2023 covering 29 days were analyzed using SPSS 22 and Origin 2024. The study revealed a 7.06637% decrease in excavator and dump truck efficiency per hour of rainfall. Cycle times were increased by 0.15122 minutes for excavators and 4.50034 minutes for dump trucks per hour of rain. Moreover, excavator productivity declined by 1138.82900 bcm/day and dump truck productivity by 176.21836 bcm/day. These results highlight the necessity of accounting for rainfall in mining operations, especially in productivity forecasts and equipment management.
Effect of Geogrid Layer on Sand and Clay Soil Deformation Under The Site Foundation Nawawi, Yudith Surya Ambhita; Nurly Gofar
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.v27i1/10267

Abstract

Two things must be evaluated when planning a shallow foundation: sufficient bearing capacity and non-excessive settlement. In theory, foundation-bearing capacity analysis is based on Terzaghi or Meyerhoff's theory. Terzaghi's theory assumes that the soil under the foundation is uniform to an infinite depth and has sufficient strength to withstand the applied load (Gofar & Kassim, 2007). In reality, the soil beneath the foundation does not always have adequate bearing capacity, which results in excessive settlement (Shahin et al., 2017). Soil replacement using good quality soil is commonly used to improve the bearing capacity of soft soils in a particular location. Many soil improvement methods have been used, including soil compaction, additives, hydraulic methods such as PVD installation, and inclusion methods. Another alternative is to install a layer of geotextile or geogrid under the foundation to increase bearing capacity and reduce deformation. Several studies on improving soil bearing capacity under footing foundations show a significant increase in bearing capacity due to installing geotextile or geogrid layers at a certain distance under the footing foundation. This research uses a numerical method where the analysis is carried out on a hypothetical model with a geometry comparison that matches the laboratory-scale model research conducted by Ambhita (2020).  Numerical analysis was performed using SIGMA/W (Geoslope International, 2018). The results showed that the foundation settlement on the medium clay layer without geogrid reinforcement was more significant than on the sand layer with geogrid reinforcement. Using geogrid layers increases the stiffness of the soil so that the deformation (settlement) is more minor, and the placement pattern of the geogrid layer affects the deformation that occurs. 
Stabilization of Soft Soil with Rice Husk Ash on CBR Bearing Capacity and Soil Shear Strength Parameters Hernandi, Safadzia; Desiana Vidayanti
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.v27i1/11397

Abstract

Bekasi Regency generally has an area with soft clay soil conditions, recognized as problematic soil known as expansive clay. As large-scale construction continues in the region, geotechnical issues associated with these expansive soils have become a concern. Stabilizing with additives increased the soil’s bearing capacity and shear strength. The addition of agricultural waste material, rice husk ash (RHA), is intended to improve the soil through a pozzolanic reaction. This study examines soft soil's bearing capacity and shear strength value with 5%, 10%, and 15% rice husk ash. Index properties tests comprising water content, specific gravity, grain size analysis, and Atterberg limits. Engineering properties tests comprising proctor compaction, California Bearing Ratio (CBR), and UU Triaxial. The samples cured for two days before compaction and seven days after compaction. The test results indicated that the soil was classified as CH according to USCS and A-7-6 according to AASHTO. The highest CBR and Triaxial UU test results were found with an RHA content of 15%. CBR increased by 86.44% from 4.919% to 9.172%. Cohesion value increased by 90.31% from 0.185 kg/cm2 to 0.352 kg/cm2. This study indicates that RHA could increase bearing capacity and shear strength in soil stabilization.
Structural Response of Irregular Buildings: Influence of Geometry and Shear Wall Configurations Teguh, Mochamad; Pratama, Aditia Ilham
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.v27i1/12467

Abstract

This paper delves into the structural response of irregular buildings, specifically focusing on the influence of geometry and shear wall configurations. Irregular buildings, with their intricate geometries and diverse structural elements, present unique design challenges, necessitating a thorough performance evaluation. Our study conducts a comparative analysis to gauge the impact of various geometric layouts and shear wall arrangements on structural behavior under seismic loading. A nine-story irregular building in Yogyakarta, Indonesia, is a compelling case study. We develop three models (M1, M2, and M3), each incorporating variations in geometry and shear wall configurations (T-shaped, L-shaped, and I-shaped). These models are rigorously analyzed using ETABS software to evaluate key structural responses, including lateral displacement, inter-story drift, and base shear forces. The results reveal that M3 exhibits the lowest base shear, at 24,961.46 kN, 7.582% lower than the existing model (M1). The lowest lateral displacements and inter-story drifts are observed in the x-direction for M2 (26.308 mm displacement, 10.061 mm drift) and in the y-direction for M3 (26.115 mm displacement, 9.339 mm drift). Additionally, the lowest drift ratio occurs on the first floor of M3, measuring 0.110% in the x-direction and 0.115% in the y-direction. These findings underscore the substantial impact of geometric variations and shear wall configurations on the structural response, providing valuable insights into optimizing irregular building designs to enhance seismic performance.
Analysis of Bed Load in Cibanjaran River, Tasikmalaya Regency, West Java Ahmad Fakhrur Rozi; Rakhmat Yusuf
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.v27i1/12515

Abstract

Cibanjaran River is one of the rivers located in the Galunggung Mountain area, with abundant sand sources, so there is sand mining. Cibanjaran River experiences the impact of mining, one of which is sedimentation. This study aims to determine the mass and mass distribution of bed load of Cibanjaran River from upstream to downstream. It also analyzes the gradation of basic sediments, sediment transport with the Schoklitsch method (1935), and simulations using HEC-RAS 6.5 software. Based on the results of the study, the upstream bottom sediment is poorly graded gravel with sand, the middle is well-graded sand with gravel, and the downstream is poorly graded gravel with sand. It has a specific gravity of 2.75 - 2.8. The mass transport of bottom sediment using the Schoklitsch calculation method is upstream 22,383.53 tons/day, middle 7,844.56 tons/day, and downstream 10,561.30 tons/day. While the results of the HEC-RAS 6.5 simulation produced a mass of sediment transport in the upstream Sta. 10833, which is 26,217.41 tons/day, in the middle of Sta. 6399 is 4,502.31 tons/day, and downstream Sta. 13 is 10,517.47 tons/day. The results of calculations and simulations can be a reference in strategic planning to mitigate the impact of sedimentation, so it is necessary to control mining activities and optimize sediment control infrastructure to maintain the sustainability of the river ecosystem and minimize negative impacts on surrounding communities.
Effectiveness Study of Twin Tunnel Nanjung in Flood Management of Citarum River Sindy Witari; Rakhmat Yusuf
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.v27i1/13295

Abstract

Indonesia has a high risk of natural disasters such as flooding, which particularly affects the West Java region. Floods often occur due to high flow rates that exceed the capacity of water bodies, triggered by rainfall and population growth. Based on the data collected, floods hit Dayeuhkolot, Bojongsoang and Baleendah Subdistricts with water levels between 40 - 200 cm which resulted in 919 households with 3,577 people displaced. Flood control can basically be done in various ways, but it needs to consider the whole system and find the most optimal one. To reduce flooding around the Upper Citarum, the Nanjung Twin Tunnels were built. Therefore, researchers are interested in further reviewing the performance and effectiveness of the Nanjung Twin Tunnel for the handling of the Upper Citarum. This research uses descriptive method with HEC-RAS v6.5 software modeling approach with 2D method. From the modeling results, it was found that after the installation of Twin Tunnel Nanjung, the flood inundation area was reduced by 64% from 13.44 km2 to 4.8 km2 and the depth was reduced by 2-3 m on average at 5 points in Dayeuhkolot area.
Analysis of Trip Generation Modeling in The Higher Education Area: A Case Study of UNISSULA, Semarang City Firdaus, Ilham; Putra Muttaqien, Abied Rizky
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.v27i1/14077

Abstract

Semarang City, the capital of Central Java Province, has various activities, one of which is higher education. The location of higher education activities on main roads can increase road service (LOS). This study aims to model the number of trips to UNISSULA and alternative routes in the event of a flood. This study uses quantitative methods with multiple linear regression analysis. One dependent variable and eight independent variables will be modeled using SPSS 26—the number of respondents representing the movement of 398 people. Based on the analysis results, the LOS level of UNISSULA Road on weekdays is 0.22 for attraction and 0.21 for generation. Then, on weekends, the LOS level of UNISSULA Road is 0.16 for attraction and 0.16 for generation. In the Jalan Raya Kaligawe section, the LOS value is 0.50 on weekdays and 0.55 on weekends. The resulting regression model is Y weekday pull = 752.624 + 3.138X1 + 7.418X2, Y weekday generation = 3728.412-4.635X1-8.075X2, Y weekend pull = 270.00 + 3.117X1 + 5.979X2, and Y weekend generation = 2493.733-2.841X1-4.938X2. The resulting model can be used by urban planners and policymakers to optimize traffic management and reduce congestion in the UNISSULA area. The traffic management strategies that can be applied to the resulting model include optimizing public transport use, encouraging shared vehicles, developing pedestrian and bicycle infrastructure, travel time management, and increasing the capacity of alternative roads.
Intercropping House of Wonosobo, A Form of Conservative Architectural Locality Wibowo, Ardiyan Adhi; Bambang Setyohadi KP; Fisa Savanti; Teguh Prihanto; Isna Pratiwi
Jurnal Teknik Sipil dan Perencanaan Vol. 26 No. 2 (2024): Jurnal Teknik Sipil dan Perencanaan
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jtsp.v26i2.14706

Abstract

Highland areas are usually identical to agricultural areas, with abundant produce in the form of vegetables. On the other hand, the community's view of the highland area is considered insufficient in meeting the need for fresh fish, considering its distance from the sea. One of the highlands in Central Java Province that is quite widely known is Wonosobo Regency, where one of the areas has the potential to be a tourist area, namely the Dieng Plateau. If seen from a distance, Wonosobo Regency is quite far from the Java Sea and the Indian Ocean; besides being a highland area, its location is in the middle of Central Java Province. As a highland area, Wonosobo Regency differs from other hilly environments, especially in managing water resources in its residential areas. The management of water resources ultimately fosters a conservative environmental architectural design. The research aims to reveal how the process of forming settlements with wise and regenerative architectural design harmonizes the environment. An exploratory qualitative research method is used to answer the research objectives. The research location is in several neighborhoods in Wonosobo Regency, around the bottom of the Dieng plateau. The results of the study show that the design of residential houses in several residential areas of Wonosobo Regency uses the method of intercropping in the "back area," which is distinguished between the water source and the remnants of Bathing, Washing, Toilet (MCK) activities. Architectural design is a form of normative local wisdom passed down from generation to generation by the next generation so that the preservation of the "intercropping house of Wonosobo" runs well. In addition to the design of the house, each water distribution channel (water source and toilet residue) that crosses the settlement is also neatly arranged so that it can be well maintained without damaging the environment. Based on the research results, it can be concluded that the design of houses and settlements in Wonosobo Regency is a form of conservative architectural locality.
The Coastal Abrasion Mitigation Using Permeable Structure at The Sipora Island Herdiana Mutmainah
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.v27i1/16318

Abstract

Abrasion is the beach erosion process due to destructive waves and currents, which are sometimes difficult to handle. The abrasion is caused by current, tidal, wind, and the earthquake and tsunami, 2010. Sipora Island is a world tourist destination for snorkeling, diving, and surfing. This research was conducted to mitigate abrasion at Sipora using a submerged permeable structure. The method is a quantitative analysis using permeable structure, WQC TOAA, current meter, and sediment trap. The field survey was conducted in August and October 2020 using purposive sampling at Kampung Dusun, Tua Pejat, The Sipora Island. The results show that the permeable structure can reduce the abrasion, current, and wave pressure and increase sedimentation at Kampung Dusun. The abrasion rate is 3.73 m/year or 268 m2/year, classified as very high (CVI). Sedimentation is created behind the permeable structure, whose rate is 9.389 cm3/day, sea current is 0.02-0.08 m/s (reduced till 50%), and wave pressure is 0.375 KN/m2 (decreased 62.5%). For seawater quality, the pH and turbidity are increased; TDS and salinity are relatively stable at some points, but the pH and temperature of the dissolved oxygen are decreased. The permeable structure can reduce abrasion and create sedimentation at Kampung Dusun, Sipora.
Analysis of Transportation Mode Choice for Commuting To Campus (Case Study: Undergraduate and Graduate Students of the Faculty of Engineering Muhammadiyah University of Yogyakarta) Debby Anggriawan Poetra; Bagus Hario Setiadj; Ismiyati
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.v27i1/16350

Abstract

The parking lot density at the Faculty of Engineering, Universitas Muhammadiyah Yogyakarta (UMY), reflects students' high use of motor vehicles. Various factors, including demographic characteristics, travel patterns, and the availability and limitations of public transportation infrastructure, influence this. However, no specific research has analyzed students' transportation mode choices at the Faculty of Engineering UMY and their impact on the campus parking capacity. This study aims to describe students' demographic and travel characteristics and analyze the parking capacity at the Faculty of Engineering UMY. The methods used were descriptive statistics and cross-tabulation analysis by distributing questionnaires to 98 respondents. The results show that most respondents are male, within the age range of 19-23 years. Most students have an income higher than the Provincial Minimum Wage (UMP), enabling them to own a private vehicle or pay for transportation costs. The primary transportation mode used by students is motorcycles. Private motorcycles dominate the transportation choice due to their efficiency for short trips (0-15 minutes or 1-7 km). Parking capacity analysis shows that the parking capacity for two-wheeled vehicles at the Faculty of Engineering UMY has exceeded its capacity with a saturation rate 1.21 during peak hours. Meanwhile, the parking facility or four-wheeled vehicles has reached 100%, with a saturation rate of 1, indicating that it is complete but has not exceeded capacity during peak hours. The conclusion of this study emphasizes that the choice of transportation mode for students at the Faculty of Engineering UMY is dominated by private vehicles, particularly motorcycles. This condition results in high parking saturation, which calls for transportation management strategies such as improving public transportation accessibility, regulating private vehicle usage policies, and optimizing parking spaces.

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