Portland cement-based mortar possesses a relatively porous microstructure, which may adversely affect its strength and durability. This study aimed to investigate the effect of hydrothermally synthesized fly ash-derived nanosilica on the microstructure and compressive strength of mortar. Nanosilica was synthesized from fly ash using a hydrothermal method. Mortar mixtures were prepared with nano…
This research evaluates the effect of variations in bamboo pile configurations (4x4, 5x5, and 6x6) combined with geosynthetic reinforcements (geogrid and geotextile) on the bearing capacity of foundations on peat soil from Ogan Komering Ilir. The research method uses laboratory-scale static loading tests with data interpretation through the Tangent Intersection and Mazurkiewicz methods. The res…
This research is backgrounded by the delay in the Flyover Gelumbang construction project, which recorded a negative deviation of 5.160% in the 37th week. The primary factors hindering work progress include adverse weather conditions and delays in the supply of materials such as granular, mini piles, and selected embankment. This delay caused the remaining work duration to swell to 112 days from…
This study discusses the implementation of the Building Information Modelling (BIM) method using Autodesk Revit 2026 in the concrete structural works of the Gelumbang Flyover Construction Project. The study aims to determine the results of structural work volume calculations using the BIM method, compare the work volume results between the BIM and conventional methods, and identify the differen…
This study aims to analyze the erosion and sedimentation rates in the paddy fields of PT Buyung Poetra Sembada Tbk and evaluate the erosion level against its permissible tolerance limits. The Universal Soil Loss Equation (USLE) method was employed to estimate soil erosion based on rainfall erosivity, soil erodibility, slope length and steepness, as well as land cover and conservation factors. S…
The drainage system in the Soccer Field area of Sriwijaya University Palembang Campus frequently experiences inundation due to suboptimal drainage performance and the influence of tidal conditions at the outlet connected to the Anak Sekanak River. In addition, field surveys identified several drainage channels affected by sedimentation, covered by soil and leaves, and structural damage in certa…
The Faculty of Engineering, Sriwijaya University Palembang Campus, frequently experiences inundation during high-intensity rainfall due to the suboptimal performance of the drainage system. This study aims to analyze the capacity of the drainage channels in the Faculty of Engineering area by considering the influence of rainfall and tidal conditions. The main issue addressed in this research is…
This research was conducted on the retaining wall work (DPT) at the Air Kembang Sari Bridge Replacement Project in PALI Regency, which has a fairly high level of occupational accident risk. This study aims to identify potential hazards, assess the risk level, and determine risk control measures for Occupational Health and Safety (OHS) using the Hazard Identification, Risk Assessment, and Risk C…
The high number of workplace accidents in the construction sector, particularly in bridge construction projects with high structural complexity and large project scale, highlights the importance of conducting occupational health and safety (OHS) risk analysis. This study was conducted on the Musi V Bridge Construction Project involving segmental box girder work using the balance cantilever meth…
Travel demand in Indralaya District, as the administrative center of Ogan Ilir Regency and an educational hub, continues to increase due to the activities of local community and the academic community of Sriwijaya University. The existing transportation modes have not been able to optimally accommodate this travel demand. Therefore, the government plans to revitalize the Kertapati – Indralaya…
The decline in the water quality of the Penjemuran River is influenced by domestic and livestock activities around the river area, indicated by Biological Oxygen Demand (BOD) and pH parameters that do not meet the Class II water quality standards based on Government Regulation No. 22 of 2021. Therefore, an environmentally friendly and simple water treatment technology is required, one of which …
Flat slab systems in building structures are susceptible to punching shear failure around the column due to high stress concentration. One method to improve the shear capacity of slabs is by using transverse steel reinforcement and additional strengthening materials such as aluminum. This study aims to analyze the punching shear capacity of geopolymer concrete flat slabs strengthened with trans…
This study aims to analyze the reinforcement efficiency of pilecap beams and floor slabs subjected to variations in pump-induced vibration loads in the Karanganyar Pulokerto Pump Intake Structure. The analysis was carried out using ETABS software with the Walking Vibration Analysis method on two types of centrifugal pumps, namely EN 733 and DPV 18-60. The evaluation was based on vertical accele…
TPST (Integrated Waste Processing Facility) is a facility designed to manage waste from multiple sources in an integrated manner through sorting, recycling, composting, and other treatment processes prior to the disposal of residual waste at the Final Disposal Site (TPA). This study aims to quantify waste generation in the selected sub-districts, develop waste transportation route maps using a …
This study aims to evaluate the performance of household waste management in riverbank settlements of Seberang Ulu II District, Palembang City, using the Waste Management Performance Index (IKPS) and spatial analysis based on Geographic Information Systems (GIS). The method employed is a quantitative approach through surveys of waste generation and composition, field observations, and questionn…
Permasalahan sampah di Kabupaten Ogan Ilir, khususnya Kecamatan Indralaya Utara, menunjukkan peningkatan akibat aktivitas domestik dan keterbatasan pengelolaan di TPA Patra Raya yang masih menggunakan metode open dumping. Penelitian ini bertujuan memproyeksikan timbulan sampah tahun 2026–2036, menentukan kebutuhan lahan TPST sesuai Permen PU No. 03/PRT/M/2013, merancang siteplan, serta merenc…
Permasalahan sampah di Kabupaten Ogan Ilir, khususnya Kecamatan Indralaya Utara, menunjukkan peningkatan akibat aktivitas domestik dan keterbatasan pengelolaan di TPA Patra Raya yang masih menggunakan metode open dumping. Penelitian ini bertujuan memproyeksikan timbulan sampah tahun 2026–2036, menentukan kebutuhan lahan TPST sesuai Permen PU No. 03/PRT/M/2013, merancang siteplan, serta merenc…
Peat soil has low bearing capacity, high water content, and high compressibility, thus requiring reinforcement before being used as a foundation soil. This study aims to analyze the improvement of peat soil bearing capacity using a combination of geogrid and bamboo piles with variations in reinforcement layer spacing. The method employed is a laboratory-scale experimental test using a shallow f…
The increasing volume of waste due to population growth, along with the suboptimal waste collection system, constitutes a major issue in East Baturaja District. This study aims to evaluate the waste collection system and its service coverage in densely populated areas that are not yet adequately served. The methodology includes estimating waste generation based on population data, assessing the…
Tanjung Raja Market is one of the centers of trade activities in Ogan Ilir Regency which produces quite high traffic movements on the sections around the market, namely Jl. Col. H. Asmuni Has, Jl. Lintas Sumatra, Jl. Depati Jemahir, and Jl. SMB II. Irregular vehicle activity in and out of the market causes traffic conflicts that have an impact on increasing queue lengths and vehicle delay times…
Clay soil is a type of soil with very fine grains that have high plasticity and a high water absorption capacity. The shear strength of cohesive soil can be determined through laboratory tests, such as triaxial tests. However, laboratory testing also has drawbacks, such as high costs and lengthy testing times. Regression analysis can be used to establish the relationship between soil shear stre…
South Sumatra Province possesses significant agricultural land potential, both in swamp and non-swamp areas; however, its utilization has not yet been optimal due to issues related to water management systems and irrigation infrastructure. This study aims to analyze and compare the optimization of paddy fields under swamp and non-swamp conditions, as well as to determine effective irrigation de…
The waste transportation system in Baturaja Barat and Lubuk Batang Districts, Ogan Komering Ulu Regency South Sumatra Province, is still inefficient. This is indicated by non-optimal routes, limited fleet availability, and a mismatch between vehicle capacity and waste volume. Under existing conditions, 45 temporary disposal sites (TPS) are served by two vehicles operating two trips per day; how…
Riverside residential areas in Ilir Timur II District, Palembang City, are characterized by high population density and face challenges related to household solid waste generation, limited waste management infrastructure, and low community participation. This study analyzes the spatial distribution of household solid waste generation and evaluates waste management performance using Geographic I…
The waste transportation system in Baturaja Timur District, Ogan Komering Ulu Regency, still faces inefficiencies in route planning, resulting in increased travel distance, operational time, and imbalance in vehicle load distribution. This study aims to optimize the distribution of waste collection vehicles through route improvement using the Saving Matrix method (Clarke & Wright) within the fr…
Riverbank settlements in Seberang Ulu I District, Palembang City, are highly susceptible to inundation due to a combination of low topography, limited drainage capacity, and solid waste accumulation in river bodies. This study aims to map the distribution of river waste and develop a GIS-based inundation potential map. The approach employed is the weighted overlay method incorporating six analy…
The high consumption of cement in the construction industry has encouraged the utilization of nanosilica synthesized from fly ash through the precipitation method as a partial substitute for cement in mortar mixtures. This study used 5 cm × 5 cm × 5 cm cube mortar specimens with a water/cement ratio of 0.485 and nanosilica variations of 0%, 3%, 6%, 9%, and 12% by weight of cement. The tests i…
Indonesia is located in a region with high seismic activity; therefore, earthquake-resistant structures are strongly recommended. This study evaluates the behavior of prestressed hollow columns made of geopolymer concrete under combined cyclic and axial loading through finite element method simulations using ANSYS software. The study utilizes secondary data in the form of geopolymer concrete ma…
Nanosilica is a nano-sized material (1–100 nm) that can be used as a partial substitute for cement to improve the mechanical properties of mortar. This study aims to analyze the effect of nanosilica synthesized by fly ash using the hydrothermal method and variations in curing temperature on the compressive strength of mortar. Nanosilica was used at 12% with curing temperatures of 40°C, 60°C…
The Clean Water Pipeline Network construction project is a pipeline project that has potential OHS hazards in all stages of work and this study aims to analyze OHS risks using the HIRARC method quantitatively to assess the level of hazard and effectiveness of control. The data obtained shows that there are 19 OHS risks spread across 11 types of work with risk levels dominated by the medium cate…