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Azanna, Dwitya Okky
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Civil Engineering, Building, Construction & Architecture Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology

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Analisis Faktor-Faktor Penyebab Terjadinya Perubahan Desain dan Pengaruhnya terhadap Cost overrun Proyek Konstruksi di Jambi Azanna, Dwitya Okky; Handayani, Elvira; Andreawan, Muhammad Fiqh
Jurnal Talenta Sipil Vol 7, No 2 (2024): Agustus
Publisher : Universitas Batanghari Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33087/talentasipil.v7i2.666

Abstract

This research aims to prove empirically the factors that cause design changes and the impact of cost overruns on construction projects. The data collection technique used was primary data collection with a sample of 10 respondents taken from contractor project staff of construction projects in Jambi City. The sampling technique in this research used probability sampling and stratified random sampling methods. Data analysis processing in this study used IBM SPSS 28. The final results of this analysis found that the causative factor of design changes because of owner or contractor. The most dominant design change factors caused by the owner were delays in providing goods that should have been provided by the owner at 48.48%, temporary suspension at 42.85%, and termination of construction contracts at 56.81%. Apart from that, other dominant factors in design changes caused by contractors are delays in providing design drawings for construction that have been approved, amounting to 62.5%, design/specification defects equal in value to the number of addendums issued at the implementation stage, namely 60.60%, final failure of contractor/subcontractor performance was 64.51%.
Monitoring Dan Evaluasi Jaringan Drainase Yang Ramah Lingkungan Di Perumahan Villa Delima Mayang Kota Jambi Mariansyah, Mariansyah; Das, Amsori M; Dony, Wari; Fadlan, Fadlan; Azanna, Dwitya Okky
Jurnal Talenta Sipil Vol 7, No 1 (2024): Februari
Publisher : Universitas Batanghari Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33087/talentasipil.v7i1.462

Abstract

The rainy season, which has a fairly high frequency over a long period of time, results in the need for drainage so that the amount of rainwater can be channeled into water bodies and some of it can be used for purposes in daily life. This is so as not to cause inundation and flooding problems. This research aims to analyze the condition of the existing drainage network, calculate runoff discharge, plan infiltration wells for utilizing rainwater in the Villa Delima Mayang housing complex, Jambi City. The method used in this planning uses hydrological analysis calculations including mononobe, pearson III and rational log methods. In planning infiltration wells, it refers to the Indonesian National Standard (SNI) No. 03-2453-2002. The result of the 10 year return period design rainfall is 112.17 mm. the results of the analysis of the carrying capacity show that 9 out of 14 channels are unable to accommodate the 10 year return period design discharge. Next, an absorption well with a diameter of 0.8 meters and a depth of 1.5 meters is planned and placed in a drainage channel that cannot accommodate runoff. The absorption capacity of 1 well is 0.7536 m3.
Studi Perkuatan Lereng Menggunakan Bronjong pada Sungai Batang Tabir Kabupaten Tebo Pebriadi, M; Azanna, Dwitya Okky; Suhendra, Suhendra; Fadlan, Fadlan
Jurnal Talenta Sipil Vol 8, No 1 (2025): Februari
Publisher : Universitas Batanghari Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33087/talentasipil.v8i1.862

Abstract

The gabion embankment project is needed to reduce erosion from river flows on roads and settlements in Embacang Gedang village. This embankment has a height of up to 8.5 m. The main material for the embankment uses 2 x 1 x 0.5 m galvanized wire gabions. Based on this data, a slope reinforcement design analysis was planned to obtain a Safety Factor value using manual calculations and Plaxis software. Soil data shows that the soil at the base of the embankment and embankment is soft clay. Modeling was carried out using plaxis 2D V8.6 software (slope stability manual before and after strengthening). The results of the analysis show that based on the results of calculating the existing safety factor with a loading of 22kN/m2, a value of 1.0734 was obtained and the manual calculation using the Fellenius method was 1.05. This value indicates that the slope condition is unsafe because it is <1.5. Calculation of the safety factor value analysis for slope conditions that have been reinforced with gabions, obtained a safety factor value of 1.6336 and a manual calculation using the Fellenius method of 2.25. This value indicates that the condition of the slope is safe and stable because the safety factor value is > 1.5. It can be concluded that the use of gabion reinforcement is quite effective in supporting the soil's bearing capacity against the load of the structure above it.
Analisis Kapasitas dan Dimensi Reservoir PDAM Aurduri S, Wahyu Marselino; Das, Amsori M; Azanna, Dwitya Okky
Jurnal Talenta Sipil Vol 8, No 2 (2025): Agustus
Publisher : Universitas Batanghari Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33087/talentasipil.v8i2.869

Abstract

The increasing population in Jambi city every year has an impact on the increasing need for clean water. As a regional drinking water company, PERUMDA Tirta Mayang needs to plan clean water needs and calculate reservoir capacity to meet customer water needs. The purpose of this study is to determine the effective reservoir volume at IPA Aurduri as one of the IPAs with the largest processing capacity, project clean water needs, and calculate the effective reservoir volume for the next 10 years. The projection formula is used to project the needs for the next 10 years. The projection formula used is geometric, arithmetic which will then be selected the best for the projection calculation. IPA Aurduri has a processing capacity of 270 l/s and a total reservoir capacity of 2,500 m3. The projection results for the next 10 years, customer clean water demand is 189,095 lt/sec, and the average daily water requirement is 249,605 lt/sec. The required reservoir volume is 5,400 m3. So PERUMDA needs to increase its capacity by 2,900 m3.
Co-Authors Amsori M Das Andreawan, Muhammad Fiqh Elvira Handayani, Elvira Ida Ayu Putu Sri Widnyani Mariansyah, Mariansyah Pebriadi, M S, Wahyu Marselino Suhendra Suhendra Wari Dony