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All Journal Sultra Civil Engineering Journal (SCiEJ)

Catrin Sudardjat

Universitas Sulawesi Tenggara

Author-ID : 5373027

Civil Engineering, Building, Construction & Architecture Transportation

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Analisis Normalisasi Sungai Baubau Alianti Alianti; Ahmad Syarif Sukri; Catrin Sudardjat; Vickky Anggara Ilham
Sultra Civil Engineering Journal Vol 2 No 2 (2021): Sultra Civil Engineering Journal (SCiEJ)
Publisher : Universitas Sulawesi Tenggara

The durability of the road flexural pavement structure is largely determined by the performance of each layer. One of these factors is the strength and resilience of the subbase. Compaction in accordance with applicable standards will produce roads with good quality so that the road life is longer and there is less damage. The purpose of this study is to analyze the carrying capacity using CBR, the value of the field density with the sand cone test and the correlation of the CBR value and the Sand cone value of the B grade foundation layer on the Tugu Munajah network. The research method used is laboratory and field testing combined with a descriptive statistic approach. The results of the study indicate that the carrying capacity using the CBR amounted to 55.02% <60%, the density value field with sand cone test of 72.50% <90%. Correlation of CBR and Sand cone value at the base layer (sub base course) is very strong at 0.998.

Rekayasa Bahan Pada Pekerjaan Pengaman Pantai Sunandar Raksi; Irwan Lakawa; Sulaiman Sulaiman; Catrin Sudardjat; Sufrianto Sufrianto
Sultra Civil Engineering Journal Vol 3 No 1 (2022): Sultra Civil Engineering Journal (SCiEJ)
Publisher : Universitas Sulawesi Tenggara

Material Engineering is used to find alternatives or ideas that aim to produce better / lower costs than the previously planned price with functional limitations and quality of work. The purpose of this research is to analyze the cost efficiency and time effectiveness after analyzing the value engineering method. The analytical method used is material engineering on the type of activity in the coastal protection building which includes the casting and installation of buis concrete, mortar and cyclone concrete work with the substitution of mixed concrete materials in the work. The results showed that the cost efficiency after analyzing with the material engineering method was 14.15% or Rp. 274,670,356 of the Budget Plan as well as the time after analysis with the effectiveness of material engineering on the Polemo Beach Security Work, Poleang Timur District by 15% or 3 weeks ahead of the implementation schedule.

Analysis of Construction Workers' Perceptions of Company Services (Case Study: PT. Konawe Multi Usaha) Sitti Nurkhalisah Bachmid; Irwan Lakawa; Sufrianto Sufrianto; Catrin Sudardjat
Sultra Civil Engineering Journal Vol 3 No 2 (2022): Sultra Civil Engineering Journal (SCiEJ)
Publisher : Universitas Sulawesi Tenggara

In supporting the success of infrastructure development, it is necessary to have good cooperation between owners, contractors and workers which must be supported by the implementation of a project management system. A construction project is a series of activities which are generally short-term, dynamic, with varying intensity of activities and limited funds. If the project construction implementation is not managed properly, it will become a conflict or dispute between the elements involved in project implementation. In the current reform era, improving the quality of public services is a demand for workers where workers have begun to understand their rights as workers/employees. The purpose of the study was to determine the contractor's performance and to determine the perception of construction workers on the services of the company PT. Konawe Multi Usaha. The results showed that the perception of construction workers on the company's services at the company PT. Konawe Multi Usaha is rated by workers in the category of Fairly Good. There are factors that influence the perception of construction workers' satisfaction on company service satisfaction by using the Customer Satisfaction Index (CSI) analysis, the value of worker satisfaction is 73.43%, which means that the level of worker satisfaction is in the Satisfied category

Analysis of Langkolome River Flood, Wambona Village, Muna Regency (Case Study: Langkolome River, Wambona Village, Muna Regency) La Ode Hasrudin; Irwan Lakawa; Catrin Sudardjat; Sufrianto Sufrianto
Sultra Civil Engineering Journal Vol 4 No 1 (2023): Sultra Civil Engineering Journal (SCiEJ)
Publisher : Universitas Sulawesi Tenggara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54297/sciej.v4i1.460

Rivers are natural channels on the surface of the earth to drain water, apart from that, of course, interactions between discharges, other factors such as human activities along rivers give different characteristics of river formation. the largest portion comes from land clearing activities around the Langkolome river body located in Wambona Village, South Wakorumba District, Muna Regency. Based on the results of the calculation of the flood discharge of the Langkolome River in Wambona Village from 10 years of rainfall data, namely Q10 = 128,773 m3/sec, Q25 = 244,067 m3/sec. The capacity of the Langkolome river which has an impact on flooding Q = 158,063 m3/s. The maximum rainfall is greater than the capacity of the river, so this causes flooding in the Langkolome River, Wambona Village, Muna Regency

Pemetaan Tiga Dimensi Bukaan Lahan Penambangan Nikel Kabupaten Konawe Selatan Sufrianto Sufrianto; Andi Makawaru Isazarni Jassin; Wira Yudha; Catrin Sudardjat; Muh. Samtun; Fikri Aris Munandar; Muhammad Muhsar
Sultra Civil Engineering Journal Vol 4 No 2 (2023): Sultra Civil Engineering Journal (SCiEJ)
Publisher : Universitas Sulawesi Tenggara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54297/sciej.v4i2.522

Pemetaan bukaan lahan tambang akibat dari penambangan merupakan proses mengidentifikasi dan memetakan area yang telah digali oleh perusahaan pertambangan. Pemetaan ini penting dilakukan untuk berbagai alasan, termasuk melacak perubahan penggunaan lahan, merencanakan reklamasi lahan tambang. Tujuan dari penelitian ini adalah agar dapat mengetahui luasan bukaan lahan pasca tambang, sehingga nanti perlu adanya Tindakan untuk meminimalisir dampak yang akan terjadi salah satunya adalah merencanakan reklamasi. Dari hasil analisis overlay menggunakan data citra satelit resolusi tinggi Sebaran Bukaan Lahan Pertambangan nikel Kabupaten Konawe Selatan seluas 1.360,06 Ha, terdiri dari 4 Segment dan 38 titik sebaran, perubahan tutupan lahan didominasi oleh tutupan lahan tanah terbuka dan pertanian lahan kering, bukaan tutupan lahan secara kesuluran perlu adanya reklamasi.

Pemodelan 2D Daerah Rawan Banjir Sungai Lepo – Lepo Kota Kendari Vickky Anggara Ilham; Andi Makkawaru; Catrin Sudardjat; Annur Rahmadhani Asana
Sultra Civil Engineering Journal Vol 5 No 1 (2024): Sultra Civil Engineering Journal (SCiEJ)
Publisher : Universitas Sulawesi Tenggara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54297/sciej.v5i1.551

Research was carried out to see the potential for flooding through Computational Fluid Dynamic simulations, namely a set of methodologies that allow computers to provide numerical simulations of fluid flow. The entire system is transformed into virtual form, and can be visualized via computer. Components in fluid dynamic computing include selection of mathematical models, discretization, numerical analysis schemes, numerical solutions and representation of processes numerically and graphically. Flood mapping can provide information about which areas need special attention so that it can be used as a reference in making policies related to flood management and can be used to increase wider public awareness regarding floods. The HEC-RAS permanent flow module is able to take into account the influence of various flow obstacles, such as bridges, culverts, bends, or obstacles on riverbanks. The permanent flow module is designed for use in riverbank management environments and the determination of flood risk insurance regarding the determination of riverbanks and floodplains. The permanent flow module can also be used to estimate changes in water level due to channel improvements or embankment construction. HEC-RAS permanent flow special module features include double plan analysis, double profile calculation, double culvert or gate analysis, flow optimization, and stable channel design and analysis. From the simulation results and depth classification, information on the area of inundation and areas prone to flood inundation on the Lepo-Lepo River is 29.34 Ha.

Pemilihan Moda Transportasi Udara Terhadap Frekuensi Penggunaan Transportasi Udara Bandara Matahora Sufrianto Sufrianto; Catrin Sudardjat; Fikri Aris Munandar; Ade Akbar
Sultra Civil Engineering Journal Vol 5 No 1 (2024): Sultra Civil Engineering Journal (SCiEJ)
Publisher : Universitas Sulawesi Tenggara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54297/sciej.v5i1.599

This research aimed to determine the characteristics of users of transportation modes and to find out the frequency of using air transportation at Matahora Airport. The research method used was quantitative with a descriptive approach, which involved depicting and explaining in detail the issues studied based on the data collected in the field. The data collection technique in this research used a questionnaire, where respondents were asked to answer a number of questions about the characteristics and factors influencing the choice of air transportation. Data analysis was conducted using descriptive data analysis to explain the data obtained through a questionnaire. The research results indicated that the characteristics of mode selection for transportation were based on reasons influencing the selection of modes from a total of 60 respondents. The analysis of the characteristics of air passenger travelers showed the largest percentage in the male gender at 68%, age between 36-45 years at 41%, the highest education level being a bachelor's degree at 62%, self-employed occupation at 36%, the reason for using air transportation being faster travel time at 93%, and the influence of mode selection on the frequency of air transportation use simultaneously at 33.4%. Partially, the factors influencing the choice of air transportation mode on frequency were cost at 26.1%, security at 12.1%, and comfort at 9.1%.

Co-Authors Ade Akbar Ahmad Syarif Sukri Alianti Alianti Andi Makawaru Isazarni Jassin Andi Makkawaru Annur Rahmadhani Asana Fikri Aris Munandar Irwan Lakawa La Ode Hasrudin Muh. Samtun Muhammad Muhsar Sitti Nurkhalisah Bachmid Sufrianto, Sufrianto Sulaiman sulaiman Sunandar Raksi Vickky Anggara Ilham Wira Yudha

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