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All Journal Jurnal Ilmu Multidisplin
Heriyanto Wibowo
Faculty of Management and Business, Institut Transportasi dan Logistik Trisakti, Jakarta, Indonesia
Agriculture, Biological Sciences & Forestry Computer Science & IT Economics, Econometrics & Finance Education Law, Crime, Criminology & Criminal Justice Public Health Social Sciences

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Analysis of Thermite Rail Joint Damage in Curve Section 3 of Lrt Jakarta Heriyanto Wibowo; Insan Kamal; Dhea Ananda Safitri
Jurnal Ilmu Multidisiplin Vol. 3 No. 4 (2025): Jurnal Ilmu Multidisplin (Januari-Maret 2025)
Publisher : Green Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38035/jim.v3i4.2133

Abstract

This study analyzes the damage to the Alumino Thermit Welding (ATW) rail joints in the curved Section 3 between Pulomas Station and Boulevard Selatan Station of the Jakarta LRT. Using a qualitative method with a cause-and-effect approach through a fishbone diagram, the study identifies the factors causing the damage. The results show that the damage is classified as Surface Defect. The primary contributing factors are the small curve radius, imbalance of train wheels, and the driving technique of the train operator, with the highest frequency at 46.15%. This is followed by inspections conducted only visually at night with limited lighting, contributing 38.46%. Material factors have the smallest contribution, at 15.38%. For repairs, it is recommended to use methods such as patching with electric welding, grinding, and re-welding, along with routine inspections using Ultrasonic Testing. Coordination with the OCC and Crew Unit Leaders (train operators) regarding the recommended speed limits on curves is crucial, and the implementation of sensor technology for real-time monitoring of rail conditions should also be considered.
Analysis of the use of Adjustment Pads in Fine Adjustment of Geometry Settlement in Ballastless Track of Jakarta-Bandung High Speed Train (Case Study: K63+016~K63+035 Tegalega Area, Karawang, West Java) Sinung Tri Nugroho; Heriyanto Wibowo; Salwa Ratu Haifa Hermawan
Jurnal Ilmu Multidisiplin Vol. 3 No. 4 (2025): Jurnal Ilmu Multidisplin (Januari-Maret 2025)
Publisher : Green Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38035/jim.v3i4.2146

Abstract

On the ballastless track K63+016~K63+035 of the Jakarta-Bandung High Speed Railway (JBHSR) there is a decrease in geometry with the category of damage level reaching the limit set according to Regulation No. 11 PT KCIC Year 2023. The event was mostly caused by the irregularity of the lower structure due to dynamic loads. The procedure used is to perform fine adjustment using an adjustment pad according to the regulations listed in SOP No. 17 PT KCIC Year 2021 so that the decline can be overcome. Testing the effectiveness of using adjustment pads on geometry decline through hypothesis testing with the F test and t-test methods can determine how much influence between the two. The results of the analysis obtained a correlation value (ݑ) of 0.965 and a p-value of 0.000 <0.05 indicating that the use of adjustment pads has a very significant effect and a very strong correlation on geometry reduction.
Co-Authors Dhea Ananda Safitri Insan Kamal Salwa Ratu Haifa Hermawan Sinung Tri Nugroho