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All Journal Asian Journal Science and Engineering Journal of Evrimata: Engineering and Physics
Fifi Damayanti, Fifi
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Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Electrical & Electronics Engineering Mechanical Engineering

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Analysis of The Stability Plan for Kambaniru Weir, East Sumba District suhudi, suhudi; Frida S, Kiki; Damayanti, Fifi
Journal of Evrímata: Engineering and Physics Vol. 02 No. 02, 2024
Publisher : PT. ELSHAD TECHNOLOGY INDONESIA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70822/journalofevrmata.v2i02.65

Abstract

This research aims to analyze the stability of the Kambaniru Dam which is located in the Luku Kambaniru River, East Sumba Regency, East Nusa Tenggara Province. In this research, a preparatory stage was carried out which included literature study and field observations to collect weir design data and soil mechanics data. The data is then analyzed using an appropriate formula to evaluate the stability of the weir. The results of the data analysis were used to prepare a final report examining the performance of Kambaniru Dam stability planning. The calculation results show that the weir with the planned dimensions, namely 7.00 m high and 69.40 m wide, equipped with a 30 m long energy absorber, meets high safety standards. Stability analysis shows that the safety value (Sf) in terms of overturning force, shear force and soil bearing capacity under normal and flood conditions (with and without an earthquake) exceeds 1.5, indicating that this weir is in a safe condition. Therefore, the construction of the Kambaniru Dam according to the planned dimensions is considered reliable and safe.
Occupational Safety And Health (K3) Through The Risk Evaluating Process For Pt Cozy Boarding House Project Workers Prima Land In Malang Damayanti, Fifi; Setya Wijaya, Handika; Nahak, Yohanes
Asian Journal Science and Engineering Vol. 3 No. 2 (2024): Asian Journal Science and Engineering
Publisher : CV. Creative Tugu Pena

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51278/ajse.v3i2.1688

Abstract

Construction companies must focus on occupational health and safety (K3) and must cover the safety and welfare of workers. JKK (Work Safety Committee) has carried out various safety assessments and risk assessments to improve worker safety and health. Comfortable Housing Boarding House PT. has carried out a risk assessment using the Prima Land method to assess the risk and safety of construction projects. The study found 13.3% of risks were classified as extreme, 30% high risk, 13.3% moderate risk, and 43.34% low risk. Risk assessment methods will be used in this research to further improve K3 working conditions and ensure worker safety. This study identified three main factors that influence OHS health and safety: organizational culture, environment, and risk assessment methods. By implementing these measures, construction companies can improve their OSH safety and health management section and reduce the risk of accidents and injuries.
Stability Analysis of Retaining Soil Walls Protecting Banu Canal, Ngantru Village, Ngantang District, Malang-Indonesia Suhudi, Suhudi; Damayanti, Fifi
Journal of Evrímata: Engineering and Physics Vol. 02 No. 01, 2024
Publisher : PT. ELSHAD TECHNOLOGY INDONESIA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70822/journalofevrmata.vi.37

Abstract

The frequent occurrence of landslides in the Ngantang District, Malang Regency, especially in Ngantru Village, is caused by topographic conditions, where the area is hilly because it is located at the foot of Mount Kelud. Likewise, along the Banu Irrigation Area Channel there are points prone to landslides, especially in the upstream part. These landslides result in the channel breaking so that the irrigation water supply is disrupted. DPT (Soil Retaining Wall) is a building structure whose role is to maintain the stability of the soil on sloping land. The existence of this wall is expected to be able to prevent the soil from moving or landslides. Therefore, to protect the Banu Irrigation Area Channel, a DPT construction was built where the DPT details used were stone masonry construction or the Gravity Wall type. With a total height of 3.9 m, the bottom sole width is 1.00 m and the upper sole width is 0.50 m. The purpose of this paper is to analyze whether the existing DPT is safe  against the forces that work, especially analyzing its stability, then comparing it with other DPT designs with the Cantilever Wall type. Based on the analysis of calculations for the Existing Gravity Type Earth Retaining Wall, the stability figures for soil bearing capacity σ max= 23.76 > 15.012 (safe ), stability against sliding hazards Fgs=3.321 ≥ 1.5 (safe ), and stability against sliding hazards Fgs=3.321 ≥ 1.5 (safe ) are obtained. = 6.26 > 1.5 (safe ) while for cost calculations the value obtained is IDR 180,390,000.00 (One Hundred and Eighty Million Three Hundred and Ninety Thousand Rupiah). Meanwhile, for the analysis of the comparative soil retaining wall for the cantilever type, the stability figures for soil bearing capacity σ max= 25.92 > 15.012 (safe), stability against sliding hazards Fgs=3.55 ≥ 1.5 (safe ), and stability against overturning hazards were obtained. SF= 6.64 > 1.5 (safe ).
Co-Authors Frida S, Kiki Nahak, Yohanes Suhudi, Suhudi Wijaya, Handika Setya