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Journal : JSE Journal of Science and Engineering

Analysis of Mini Pile Foundation in Istiqlal Mosque Loa Bakung Samarinda Construction Project Based on CPT and SPT Data Ulwiyah Wahdah Mufassirin Liana; Santi Yatnikasari; Adde Currie Siregar; Muhammad Syahrul
JSE Journal of Science and Engineering Vol. 2 No. 2 (2024): Journal of Science and Engineering
Publisher : LPPI Universitas Muhammadiyah Kalimantan Timur (UMKT)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30650/jse.v1i2.3798

Abstract

Transportation as an activity of moving something from one place to another. The existence of various community activities causes the emergence of traffic movements. The more activities that take place, the more traffic generated. So that adequate infrastructure is needed to create a smooth movement. As the number of vehicles increases, the strength of the pavement decreases which results in road damage. Pavement in good condition in Samarinda City in 2020 decreased by around 6.3%, while roads in severely damaged conditions increased by almost 100% from 2015. Damage to pavement reduces the capacity of the previously planned roads. This affects the level of service on these roads, so it is necessary to compare the analysis of service levels with and without any damage. The research was conducted by surveying Ir. Sutami road, City of Samarinda with a length of 150 m. Primary data include the number of vehicles, road geometric data and documentation of road damage. The analytical method uses MKJI 1997. The volume of vehicles passing through Ir. Sutami as much as 1228.4 smp/hour on holidays and 3510.35 smp/hour on weekdays which are dominated by motorbikes. Road capacity Ir. Sutami in a condition without any damage, namely 6079.92 smp/hour which produces a V/C ratio of 0.58 with a service level of A, while currently the Ir. Sutami road with some damage such as holes and peeling so that the capacity decreased to 5251.067 smp/hour with a V/C ratio of 0.67.
Overview Implementation of Precast U-Ditch Drainage Construction on Jalan Otto Iskandardinata Brian Ricki Tama; Santi Yatnikasari; Elvira Handayani; Zulfikar Umi; Fitriyati Agustina
JSE Journal of Science and Engineering Vol. 2 No. 2 (2024): Journal of Science and Engineering
Publisher : LPPI Universitas Muhammadiyah Kalimantan Timur (UMKT)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30650/jse.v1i2.3833

Abstract

The increasing use of transportation infrastructure in Indonesia demands the development of facilities and infrastructure to enhance the quality of public services. Kalimantan Timur is a rapidly growing province. The rising population of Kalimantan Timur necessitates the construction of supportive facilities and infrastructure. Drainage refers to the action or process of draining/disposing of water, resulting from human activities like household wastewater, industrial wastewater, as well as natural processes such as rain, water accumulation, floods, and groundwater level reduction. The Drainage Project aims to improve the drainage system to reduce flood and waterlogging risks while preserving water quality, accommodating the growth of the population and the need for supporting infrastructure like housing, schools, and healthcare facilities. In the Drainage Development Project on Jalan Otto Iskandardinata, the precast concrete method with dimensions of 100x70x20 is used. The implementation of the U-Ditch Precast Drainage Project on Jalan Otto Iskandardinata is expected to alleviate flood issues. Before commencing the work, various tests such as the Slump Test, Compressive Strength Test, Hammer Test, and Tensile Strength Test are conducted to ensure compliance with the required specifications. Occupational Health and Safety (OHS) measures have been applied to the Drainage Project. Each stage of the project's implementation must be supervised by field inspectors to ensure the project runs smoothly and meets the required quality standards.
Implementation of Mini Piles and Retaining Wall in the Construction of the North Kalimantan Provincial DPRD Building in Bulungan Regency Madrotin Noer Hendi; Ulwiyah Wahdah Mufassirin Liana; Gariel Onaya; Santi Yatnikasari; Pitoyo Pitoyo; Ilpandari Ilpandari
JSE Journal of Science and Engineering Vol. 2 No. 2 (2024): Journal of Science and Engineering
Publisher : LPPI Universitas Muhammadiyah Kalimantan Timur (UMKT)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30650/jse.v1i2.3836

Abstract

Piles are used as the foundation for a building's construction when the underlying soil beneath the structure lacks sufficient bearing capacity to support the weight of the construction and its load, or when hard soil with enough bearing capacity lies at a significant depth. Retaining walls are a type of civil construction built to withstand the lateral active pressure of soil or water. Therefore, the construction of a retaining wall must be planned and designed to safely counter potential forces that could cause structural failure. The purpose of this writing is to understand the implementation of mini pile foundations and retaining walls concerning the stability control of the retaining wall against sliding, overturning, and soil-bearing capacity. The observational method used involves collecting secondary and primary data. The mini pile foundations are driven to a specified depth, with each pile segment being 4.0 meters long, and this piling activity aligns with the plan. The retaining wall used is a cantilever retaining wall with concrete quality K-300 f’c 25 MPa, where the successive heights, upper width, and bottom width of the retaining wall are 4.5 m, 0.3 m, and 2.7 m, respectively.