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All Journal Jurnal Info Sains : Informatika dan Sains Jurnal Talenta Sipil
Widhitomo, Kurniawan
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Civil Engineering, Building, Construction & Architecture Computer Science & IT Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology

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Risk Analysis of the Influence of Work Methods, Equipment and K3, and Land Affected by the Community on the Implementation of the Coastal Safety Development Project on the Coastal Jakarta Bay Phase 6 Package 4 Widhitomo, Kurniawan; Azhar, Moh.; Raharjo, Sri Kustoyo
Jurnal Info Sains : Informatika dan Sains Vol. 14 No. 04 (2024): Informatika dan Sains , 2024
Publisher : SEAN Institute

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Abstract

DKI Jakarta Province and its surroundings often experience flood events. The causes of flooding include increased rainfall intensity, large-scale land conversion and insufficient river capacity to accommodate flood discharge. In addition, land subsiversion in several locations of Jakarta Beach caused a storm that inundated residential areas and other strategic areas. Related to that, the construction of embankments and the construction of coastal safety needs to be carried out. In the implementation of the work there are problems such as the working method of Equipment, K3, Social community and land, the four problems do affect the time of project implementation, the scope of this research is carried out in the project package 4 coastal safety of the capital and the project is still running. The purpose of this study is to determine the influence of occupational safety risks, equipment, and the social influence of the community around the project on the implementation time. Meanwhile, data is taken either secondary (work reports or other literature, both secondary and primary).
Studi Perbandingan Produktivitas Teori dan Realitas pada Pekerjaan Konstruksi Keselamatan Pesisir di Teluk Jakarta Tahap 6 Paket 4 Widhitomo, Kurniawan; Azhar, Moh; Mardiaman, Mardiaman
Jurnal Talenta Sipil Vol 8, No 2 (2025): Agustus
Publisher : Universitas Batanghari Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33087/talentasipil.v8i2.952

Abstract

Coastal protection infrastructure in Jakarta Bay is essential to mitigate flooding due to sea level rise and land subsidence. The use of spun piles with inner boring methods supported by Hydraulic Static Pile Driver (HSPD) technology is intended to ensure efficient and low-impact pile driving operations. However, in practice, productivity discrepancies between theoretical planning and field realization remain a significant issue. This study aims to analyze and compare theoretical productivity (based on contractual planning) with actual field productivity in the installation of spun piles for a coastal safety project in Jakarta Bay Phase 6 Package 4. A descriptive quantitative approach was used, combining direct field observations, time-lapse video analysis, and secondary data from contract documents. Productivity was measured in meters per hour (m/h) and piles per day (piles/day). Deviations between theoretical and actual productivity were identified, and causal factors were analyzed. Theoretical productivity was 3.59 m/h with 3.5 piles/day, while actual field productivity reached only 3.2 m/h with 3.33 piles/day. This discrepancy resulted in an estimated delay of 5 workdays (4.8% deviation). The primary contributing factors were inconsistent hydraulic pressure, environmental constraints, equipment limitations, and varying operator skill levels. The study confirms that real-time monitoring and productivity assessment tools are crucial for timely project delivery. It also highlights the need for adaptive planning and systematic operator training. The findings provide practical guidance for enhancing productivity in future coastal foundation projects using HSPD technology.
Co-Authors Azhar, Moh Mardiaman, Mardiaman Moh Azhar Raharjo, Sri Kustoyo