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INDONESIA
Journal of Civil Engineering
Published by Institut Teknologi Sepuluh Nopember Surabaya
ISSN : 20861206     EISSN : 25799029     DOI : -
Core Subject :
Journal of Civil Engineering merupakan jurnal bidang teknik sipil yang mengacu pada sistem standar internasional dalam pengelolaannya dengan tujuan utama memajukan bidang teknik sipil melalui publikasi ilmiah demi terwujudnya kemudahan mendapatkan ilmu dan informasi serta mendukung kemajuan teknologi.
Arjuna Subject : -
Articles 14 Documents
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Search results for , issue "Vol 40, No 1 (2025)" : 14 Documents clear
Optimizing Freight Train Operations A Case Study of Junction Planning at JIIPE Widyastuti, Hera; Ikhwan, Maylana
Journal of Civil Engineering Vol 40, No 1 (2025)
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j20861206.v40i1.20230

Abstract

Train scheduling is a fundamental aspect of efficientcy railway operations, in general Ttrain scheduling explain iat train timetable. In the pursuit of enhancing railway utilization for freight transport, the Indonesian government has implemented policies, including the integration of the railroad with JIIPE (Java Integrated Industrial and Ports Estate) along the main line of the North Java Railroad (PP 71 2021). However, the growing number of trains originating from the junction poses challenges to existing schedules, particularly impacting the Surabaya Pasarturi-Bojonegoro railroad segment. This study aims to calculate train scheduling based on headway and capacity, proposing adjustments to the departure frequency at Duduk Station in line with the train timetable (Gapeka) 2021 for the Surabaya Pasarturi-Bojonegoro Segment 12 of 17 alternative trains per day west direction  and 18 of 21 alternative trains per day east direction. It is essential to note that this proposed frequency exceeds theoretical capacity, emphasizing the need for careful planning of additional trains within the constraints of capacity theory to maintain operational efficiency.
Experimental Study on The Infiltration and Compressive Strength of Porous Paving Blocks Composed of Fly Ash and Zeolite Mixture Mayasari, Devita; Yuhanah, Tri; Iduwin, Tommy
Journal of Civil Engineering Vol 40, No 1 (2025)
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j20861206.v40i1.22001

Abstract

Maximizing the absorption of water into the soil to reduce puddles in developing areas can be done by using porous paving blocks as cover for soil reports with water escape capabilities. Paving block porous materials need to be considered qualified quality according to their use. Fly ash as one of the coal-burning wastes can be used as a substitution material for cement. Zeolite instead of gravel is a source of considerable mining material, structured hydrate aluminum silicate with a high specific surface area and has a great potential for use as an absorbent material that can pass through water. This study investigates the use of fly ash as substitute of cement and zeolite as aggregates in porous paving block. The research aims to identify optimal composition of fly ash and zeolite for achieving desirable compressive strength and infiltration. Porous paving block were manufacture using ratio 1 (segment): 4 (grains) of binder to aggregate. Fly ash waste used in a mixture of porous paving block materials varies by 10%, 20%, 30% and 40% using rough aggregates of zeolite. Compressive strength tests are performed at 7 days, 14 days and 28 days and for infiltration tests at 28 days. Research showed compressive strength values of 31.40 MPa, 36.75 MPa, 37.50 MPa, 32.42 MPa, and 32.67 MPa, respectively, can be used as a parakeet cover layer. The infiltration coefficients are 0.0611 cm/s, 0.4376 cm/s, 0.1218 cm/s, 0.0621 cm/s and 0.1012 cm/s, respectively, which are capable of passing water from the surface to the ground. This study highlights the potential of utilizing waste material fly ash and zeolite in quality of porous paving blocks, contributing to sustainable construction and stormwater management in urban areas.
Analytical Investigation of The Performance of Fluid Viscous Damper and Lead Rubber Bearing Isolator on A Multi-Storey Building Singha, Badhon; Chowdhury, Nafis Niaz; Sakib, Mohammad Atiqur Rahman
Journal of Civil Engineering Vol 40, No 1 (2025)
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j20861206.v40i1.22386

Abstract

Earthquakes are devastating natural events that can cause substantial structural damage, often resulting in collapses due to inadequate seismic design. This study investigates the effectiveness of two seismic protection systems: fluid viscous damper (FVD) and lead rubber bearing (LRB) isolation, in improving the seismic performance of a structure. The initial research did not include any base isolator or link damper for earthquake protection. The results were then compared to a similar investigation of the same structure using FVD and LRB isolation. Significant differences in structural behavior were observed, with both systems demonstrating improved performance in mitigating seismic forces. The findings highlight the importance of incorporating advanced damping mechanisms, such as FVD and LRB, in building design to enhance earthquake resilience in prone regions. This study underscores the critical need for integrating such seismic protection systems to reduce structural damage and improve safety during earthquakes.
Analysis of Passenger Ability and Willingness to Pay for the Surabaya-Yogyakarta Train Route Ardiansyah, Dhaifan; Widyastuti, Hera
Journal of Civil Engineering Vol 40, No 1 (2025)
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j20861206.v40i1.21452

Abstract

The Directorate General of Railways of the Ministry of Transportation has been constructing double-track railway lines along the southern route of Java since 2015, covering a distance of 694 km This project aims to connect three major agglomeration cities, namely Jabodetabek, Joglosemar (Jogja - Solo - Semarang), and Gerbangkertosusila (Gresik - Bangkalan - Mojokerto - Surabaya - Sidoarjo - Lamongan). PT Kereta Api Indonesia accelerated travel times for several trains using the south of Java double-track railway starting September 24, 2021, as part of service improvements. In line with the construction of the double-track railway and service improvements by the Directorate General of Railways of the Ministry of Transportation and PT Kereta Api Indonesia, ticket/fare rates need to be reviewed, especially if there is an increase in ticket prices for the economy and executive classes, which include the Wijayakusuma, Sancaka, and Mutiara Selatan trains. This research aims to determine passenger characteristics, Ability to Pay (ATP), and Willingness to Pay (WTP) for the services used and to provide alternative scenarios in the event of fare increases to improve service quality. The methods used to address these issues include collecting primary data through interviews and questionnaires, analyzing respondent characteristics, and analyzing willingness and availability to pay using the Stated Preference approach. Subsequently, the Household Budget method and service user perceptions will be employed to obtain ATP and WTP values. The results of this study for the economy class show an Ability to Pay (ATP) value of IDR 307.249 and a Willingness to Pay (WTP) value of IDR 250.593. For the executive class, the ATP value is IDR 396.943, and the WTP value is IDR 277.462.

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