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All Journal JUTIS VIDHEAS: Jurnal Nasional Abdimas Multidisiplin
Herol
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Metode Reverse Circulation Drilling Pada “Approach Bridge” Jembatan Suramadu Roejanto, Juse; Herol
JURNAL TEKNIK SIPIL Vol 5 No 1 (2024): Jurnal Teknik Sipil - Juni 2024
Publisher : Universitas Pelita Bangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37366/jts.v5i1.5156

Abstract

The selection of the appropriate drilling method is crucial, especially for offshore projects (conducted on rivers or seas), which generally involve deep drilling lengths and large diameters. One drilling method, aside from the commonly used “Kelly bar system” for land drilling, is the circulation system. For the “Approach Bridge” and “Main Bridge” sections of the Suramadu Bridge, the drilling method employed was the “Circulation” method. The focus of this discussion is on the “Approach Bridge” section, as the drilling depth reaches around 80-90 meters, and the soil conditions are quite varied according to available data. However, in general, clay shale layers were found, a type of soil highly sensitive to disturbances during the drilling process and to weather effects. Therefore, during the drilling process, a slurry stabilizer is required to prevent the collapse of the bore pile walls. The slurry stabilizer used involves mud and bentonite. After the bore pile construction is completed, the piles will be tested to determine their bearing capacity. The bore pile tests are conducted using the Osterberg Cell method, and a Sonic Logging test is also carried out to assess the integrity of the bore piles.
Kajian Kondisi Drainase Jalan Perkotaan (Studi Kasus: Kecamatan Pekalongan Utara, Kota Pekalongan) sutrisno, prasetyo aji; Sakinah; Herol; Juse Roejanto
JURNAL TEKNIK SIPIL Vol 6 No 1 (2025): Jurnal Teknik Sipil - Juni 2025
Publisher : Universitas Pelita Bangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37366/jts.v6i1.6331

Abstract

In Pekalongan City, particularly on Perintis Kemerdekaan Street and Patriot Street, waterlogging frequently occurs during the rainy season due to ineffective drainage systems. The main causes are narrowed drainage channels, sediment buildup, waste accumulation, and wastewater discharge from nearby residential areas. These streets are vital access points to offices, schools, and trade centers, making the waterlogging a significant disruption to economic activities and the community. According to the analysis, the peak discharge on Perintis Kemerdekaan Street for a 5-year period is 24.305 m³/s, while the channel's capacity is only 18.869 m³/s. On Patriot Street, the peak discharge is 3.575 m³/s, with a channel capacity of 46.427 m³/s. Although the drainage capacity in both locations is adequate to accommodate the peak discharge, waterlogging still occurs due to external factors such as sediment and waste clogging the drains, along with heavy rainfall.
Co-Authors Aji Prasetyo, Sutrisno Aprila Hardi, Resty Fitri Astuti, Retno Fitriani Juse Roejanto Roejanto, Juse Sakhrial Pradini, Purnama Sakinah Sumardi, Fitriani sutrisno, prasetyo aji