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Nita Anggraini
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Bearing : Jurnal Penelitian dan Kajian Teknik Sipil
Published by Universitas Muhammadiyah Palembang
ISSN : 20856261     EISSN : 26231409     DOI : https://doi.org/10.32502/jbearing.v5i4
Core Subject : Engineering,
Civil Engineering, Building, Construction & Architecture Engineering Transportation
BEARING is a research journal and study in civil engineering that presents research results in the fields of building and structural engineering, transportation, water resources engineering and management, geotechnical engineering, infrastructure management, and environmental engineering.
Arjuna Subject : Teknik (semua kategori) - Teknik Sipil dan Struktur
Articles 184 Documents
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Pengaruh Asam Fosfat Terhadap Nilai Uji Kuat Tekan Bebas Pada Stabilitas Tanah Lempung R.A. Sri Martini; Erny Agusri; M. Faris Fisabilillah; Tri Dianita
Bearing : Jurnal Penelitian dan Kajian Teknik Sipil Vol 11, No 1 (2026): Bearing : Jurnal Penelitian dan Kajian Teknik Sipil
Publisher : Universitas Muhammadiyah Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32502/jbearing.v11i1.11130

Abstract

This study was motivated by the low bearing capacity of clay soils, which often causes structural failures in road construction in Tanjung Lalang Village, Payaraman District, Ogan Ilir Regency, South Sumatra. Clay soils tend to expand and shrink easily due to changes in moisture content, resulting in unstable ground conditions. Therefore, stabilization efforts are required to improve their strength. One alternative stabilizing agent is phosphoric acid, which chemically reacts with clay minerals to form stronger bonds, enhancing soil density and stability. This research aimed to analyze the effect of various phosphoric acid contents on the unconfined compressive strength of clay soils. The study used an experimental laboratory method with phosphoric acid variations of 0%, 6%, 7%, 8%, and 9% by dry soil weight, and curing periods of 0, 6, and 9 days. The test results showed that the addition of phosphoric acid significantly increased the unconfined compressive strength, reaching its optimum value at 7% concentration with a curing time of six days. However, excessive concentrations led to decreased strength due to reaction saturation. It can be concluded that phosphoric acid is effective as a chemical stabilizing agent to improve the strength and stability of clay soils and has potential applications for subgrade improvement in road construction projects with similar soil.
Analisis dan Simulasi Rekayasa Lalu Lintas Untuk Mengurangi Kemacetan Pada Simpang Tak Bersinyal Noto Royan; Muhammad Hijrah Agung Sarwandy; Marice Agustini; RAS Delima Amanda Putri; Ahmad Dinar Alamsyah
Bearing : Jurnal Penelitian dan Kajian Teknik Sipil Vol 11, No 1 (2026): Bearing : Jurnal Penelitian dan Kajian Teknik Sipil
Publisher : Universitas Muhammadiyah Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32502/jbearing.v11i1.11125

Abstract

Traffic conflicts frequently occur at intersections. Unsignalized intersections are more prone to traffic conflicts than signalized intersections. Intersection performance is a key factor in determining the most appropriate measures to optimize intersection functionality. One unsignalized intersection in Palembang that frequently experiences traffic congestion is the section of Dr. M. Isa Street and Letda Abdul Rozak Street. This study aims to analyze intersection performance using the 2023 PKJI and VISSIM software to help simulate the most effective traffic engineering measures to reduce congestion. Analysis of data using the 2023 PKJI method yielded a queue probability of 39.36% –77.84%, a degree of saturation of 0.99, and an intersection delay of 18.58 seconds per vehicle. Based on the intersection performance analysis, a poor service level was identified. A highly effective traffic engineering alternative to address the poor intersection performance involves implementing a right-turn ban for vehicles on Dr. M. Isa Road (Toward Veteran) and Letda Abdul Rozak Road. The intersection performance analysis yielded a queue probability of 11.36%–25.40%, a degree of saturation of 0.51, and an intersection delay of 10.09 seconds/vehicle. The VISSIM simulation yielded a queue length of 0 meters and a maximum vehicle delay of 11.14 seconds/vehicle. With the implementation of the traffic engineering alternative prohibiting right turns, the intersection experienced an improvement in service level due to a reduction in queue length and vehicle delay.
Potensi Pemanfaatan Rel Bekas Sebagai Pengganti Dinding Penahan Tanah (DPT) Untuk Mendukung Mitigasi Bencana Kelongsoran Tanah M. Arva Kurniawan Tasri; M. Putra Gunawan; Nita Anggraini; Luthfiyyah Ulfah; Dimitri Yulianti
Bearing : Jurnal Penelitian dan Kajian Teknik Sipil Vol 11, No 1 (2026): Bearing : Jurnal Penelitian dan Kajian Teknik Sipil
Publisher : Universitas Muhammadiyah Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32502/jbearing.v11i1.11081

Abstract

Used railway rails are one of the non-hazardous waste materials generated from the operational activities of PT Bukit Asam (PTBA). These materials tend to accumulate in storage areas because they are difficult to reuse through conventional recycling processes. Therefore, an alternative utilization method is required to reduce waste accumulation while providing additional functional value. One potential application is the use of used rails as retaining walls. This concept is based on the mechanical properties of steel rails, which possess high structural capacity, good stiffness, and a cross-sectional shape similar to steel piles used in sheet pile retaining wall systems. PTBA has implemented this method by installing used rails vertically at the toe of slopes in mining areas susceptible to instability. The installation is intended to increase the lateral resistance of the soil, thereby restraining soil mass movement and improving slope stability. To evaluate its effectiveness, a numerical analysis was conducted using a finite element method-based program. The analysis compared slope conditions before and after the installation of used rails under two soil types, namely sandy soil and clayey soil. The results indicate that, prior to rail installation, the slopes did not satisfy the required safety criteria, with factors of safety of 0.918 for sandy soil and 1.147 for clayey soil. Following the installation of the used rails, the factors of safety increased significantly to 1.565 and 1.545, respectively. These findings demonstrate that used rails can effectively function as retaining walls to enhance slope stability and offer a promising innovative solution for waste material management in the mining industry.
Analisa Penerapan (SMK3) Studi Kasus Proyek Pembangunan Bendungan Tiga Dihaji Paket VI Revisdah Revisdah; Muhammad Arfan; Nurnilam Oemiati
Bearing : Jurnal Penelitian dan Kajian Teknik Sipil Vol 11, No 1 (2026): Bearing : Jurnal Penelitian dan Kajian Teknik Sipil
Publisher : Universitas Muhammadiyah Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32502/jbearing.v11i1.11129

Abstract

The construction of dams is categorized as a high-risk activity in the infrastructure sector due to the involvement of heavy equipment, complex structures, and intensive manpower. This study aims to analyze the implementation of the Occupational Safety and Health Management System (SMK3) in the Tiga Dihaji Dam Construction Project Package VI, South Sumatera, Indonesia. A quantitative research approach was employed by distributing questionnaires based on ISO 45001:2018 indicators, conducting direct field observations, and interviews with project workers. The sample size was determined using the Taro Yamane formula with a 15% precision level, resulting in 36 respondents out of 192 workers. Data were analyzed using validity tests, reliability tests with Cronbach’s Alpha, and Pearson correlation with the assistance of SPSS 27. The results show that the implementation of SMK3 in this project falls into the very good category, supported by high compliance with helmet and safety shoes usage. However, compliance with certain personal protective equipment, such as masks, safety harnesses, and safety glasses, remains low. These findings indicate that while the contractor has effectively implemented SMK3 according to Government Regulation No. 50 of 2012, further improvement is needed in developing a strong safety culture, particularly in personal protective equipment awareness. In conclusion, SMK3 implementation in the Tiga Dihaji Dam Project has been effective, but continuous training and supervision are recommended to enhance occupational safety performance in future construction projects.

Page 19 of 19 | Total Record : 184

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