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Jurnal Manajemen Teknologi dan Teknik Sipil (JURMATEKS)
Published by Universitas Kadiri
ISSN : -     EISSN : 26217686     DOI : http://dx.doi.org/10.30737/jurmateks
Core Subject : Engineering,
Civil Engineering, Building, Construction & Architecture Electrical & Electronics Engineering Engineering Transportation
JURMATEKS (Jurnal Mahasiswa Teknik Sipil) diterbitkan oleh Program Studi Teknik Sipil, Fakultas Teknik, Universitas KADIRI untuk menampung hasil penelitian, tugas akhir maupun tugas proyek mahasiswa teknik sipil di lingkungan Universitas KADIRI.
Arjuna Subject : Teknik (semua kategori) - Bangunan dan Konstruksi
Articles 6 Documents
 1 
Search results for , issue "Vol. 6 No. 2 (2023): DECEMBER" : 6 Documents clear
Optimasi Geometri Lereng dengan Evaluasi Nilai Faktor Keamanan Menggunakan Software Geostudio Gilang Wahyu Kottama; Agata Iwan Candra; Arif Rivianto; Muhammad Rifqi Fatkhur Rohman; M Rizal Agus Joko Budiawan; M Sousa Taufani; M Wildan Prasetyo
Jurnal Manajemen Teknologi & Teknik Sipil Vol. 6 No. 2 (2023): DECEMBER
Publisher : Kadiri University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30737/jurmateks.v6i2.4864

Abstract

The slopes of the Widas watershed in Kutorejo Village, Bagor District, Nganjuk Regency were hit by a landslide, damaging a 50-meter-long road. This damage has an impact on the activities and mobility of residents. The impact of landslides caused enormous losses, both infrastructure damage and loss of life. Several studies have been carried out, in determining slope stability it is necessary to observe at the research location and determine the type of soil, soil consistency, and soil shear strength parameters. This research aims to determine the value of the safety factor (FK) on the slopes of the Widas River. This research began by conducting a case study, including interviews, collecting field survey data, taking soil samples, and laboratory testing. Slope stability analysis was carried out using Geostudio software. The research results show that the soil type is classified as Poorly Graded Sand (SP), and the soil consistency is classified as Non-Plastic soil with a liquid limit of 26.093 and a shear angle of 20° - 30°. Slope improvements were carried out by changing the slope geometry until a slope ratio of 1V:2H was obtained by creating two slope core models. The FK value increased from 1.007 to 1.107 and 1.437 to 1.585 under pore water pressure conditions. Thus, the slope modeling obtained can be used to overcome landslide problems.
Efektivitas Metode Pekerjaan Pelat Lantai Bondek, Half Precast dan Konvensional Gedung Asrama Putra Al-Azhar Muhammad Romadhoni; Muh. Nur Sahid
Jurnal Manajemen Teknologi & Teknik Sipil Vol. 6 No. 2 (2023): DECEMBER
Publisher : Kadiri University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30737/jurmateks.v6i2.4949

Abstract

The floor plate is one of the important components in a multi-story building. Conventional methods are still widely used for building floor slabs. This method requires a lot of labor and time, which can reduce productivity. Other methods, such as bondek and half precast in floor slab work, are expected to increase work effectiveness and efficiency. This study aims to determine which method is most effective in floor slab work by reviewing cost, time, and work productivity. Floor plate planning consists of calculating each method's structural strength and volume of work, including formwork, reinforcement, concrete, and formwork dismantling. Cost analysis is carried out by collecting data on material prices and labor wages for the building's Draft Budget (RAB). Estimated work time involves formwork preparation, installation of reinforcement, and concrete casting for the three work methods. Based on the results of the calculation analysis on the floor slab work of the Al-Azhar Boys Dormitory Building  with an area of the floor plate of 375,318 m2. Conventional floor slab work is more economical than bondek slab work by around 31.23%, but requires the longest work time. Meanwhile bondek floor slabs offer the fastest processing time, even though the cost is higher than conventional slabs, around 31.19% and 5.18% lower than half precast slabs. This can be a recommendation in choosing a floor slab work method.
Kuat Lentur Beton Menggunakan Agregat Batu Petangis dan Pasir Semboja dengan Penambahan Botol Plastik Topik Wahyu Widianto; Andi Marini Indriani; Gunaedy Utomo
Jurnal Manajemen Teknologi & Teknik Sipil Vol. 6 No. 2 (2023): DECEMBER
Publisher : Kadiri University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30737/jurmateks.v6i2.4989

Abstract

Utilizing local materials is a strategic step in optimizing concrete production in East Kalimantan. There's an example supply of petangis stone and semboja sand aggregates. Apart from that, using various wastes, including plastic waste, in concrete production is also a current issue. This study aims to investigate the potential substitution of fine aggregates with PET and combine them with local materials, to understand their impact on the bending strength of concrete.  The study tested concrete bending strength using 15x15x60 cm blocks with PET plastic substitutions at 0.30%, 0.45%, and 0.60% of sand weight, comparing them with PET-free concrete. The research results show that adding 0.30 and 0.45% PET plastic bottles causes a decrease in the flexural strength of concrete. This is related to the influence of changes in the composition of the concrete mix, including factors such as uneven aggregate distribution and less-than-optimal material binding. Flexural strength increases at a percentage of 0.60% by 3.7% or 3.3 MPa and shows better results than normal concrete. So the PET percentage can be used as a recommendation in making concrete using local materials such as petangis stone aggregate and semboja sand.
Permeabilitas Tanah Lanau Sebagai Temporary Landfill Cover yang Distabilisasi dengan Bakteri dan Larutan Sementasi Alfian Rahmadi; Andi Marini Indriani; Gunaedy Utomo
Jurnal Manajemen Teknologi & Teknik Sipil Vol. 6 No. 2 (2023): DECEMBER
Publisher : Kadiri University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30737/jurmateks.v6i2.4998

Abstract

In the development of waste management, piles of rubbish can produce liquid waste called leachate. Leachate from landfills can affect human health and pollute the environment and aquatic biota because leachate contains various chemical compounds and many pathogenic bacteria. To minimize the impact of landfill waste on the surrounding environment, the waste is covered with material that can isolate it from the surrounding environment. This research aims to determine the optimal level of cementation solution addition to waste sludge as temporary landfill cover using the MICP method. The research results reveal that the sample permeability meets the criteria for a temporary cover landfill, where the permeability specification limits are between 10-4 to 10-5 cm/s. The research revealed that 0.25M cementation solution and Bacillus Subtilis bacteria had the lowest permeability. Soil without cementation solution has a permeability coefficient value of 5.04×10-4 cm/s, and decreases to 6.67×10-5 cm/s with a cementation solution concentration of 0.25M over a 28-day peram period. Variations in the 0.25M cementation solution showed its ability to reduce soil permeability by up to 86.7%. Permeability has decreased, which means the soil pores are getting smaller. Thus, this addition can reduce soil permeability and minimize the possibility of environmental damage by leachate.
Efektivitas Dinding Sandwich Panel dan Precast ACC Panel Terhadap Biaya dan Waktu Kholis Hapsari; Ardia Tiara Rahmi; Delista Putri Deni
Jurnal Manajemen Teknologi & Teknik Sipil Vol. 6 No. 2 (2023): DECEMBER
Publisher : Kadiri University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30737/jurmateks.v6i2.5126

Abstract

Project delays in construction development have a major impact, especially on costs. Projects that experience delays in implementation will require large costs. One of the delay factors is caused by material selection, especially for wall materials. Precast AAC Panel wall and sandwich panel walls are current wall material innovations, but both differ in material composition, implementation method, and price. This research aims to analyze the effectiveness of the two types of walls in terms of cost and time. The research will use objects from the 24-story Sudimaran Forestwalk apartment development in South Tangerang. The research method uses quantitative methods by making a cost budget plan obtained from data on work volume, productivity, and unit price of work. Next, analyze the duration of work from productivity data and work volume. The analysis results for the budget for work costs using precast AAC panel materials cost IDR 11,640,163,103, while sandwich panel walls are IDR 16,223,117,608. For comparison of implementation time, precast AAC panel walls are faster, with a work duration of 623 days, and sandwich panel walls 784 days. From these price results, AAC panel walls are 23% cheaper than sandwich panel walls. Due to the low strength, the sandwich panel walls are sometimes damaged during construction, resulting in longer construction times. The analysis results show that precast AAC panel walls are more recommended as the choice of wall type in terms of cost and implementation time.
Evaluasi Ketahanan Gempa pada Fondasi Tangki Minyak 3000 bbl Berdasarkan Metode Analitik dan Elemen Hingga Rosi Nursani; Fitriana Sarifah; Hidayanto
Jurnal Manajemen Teknologi & Teknik Sipil Vol. 6 No. 2 (2023): DECEMBER
Publisher : Kadiri University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30737/jurmateks.v6i2.5136

Abstract

Oil tank buildings are designed to be earthquake-resistant throughout their lifetime. The foundation of the 3000 bbl petroleum storage tank in Penukal Abab Lematang Ilir (PALI) Regency has been designed using previous seismic standards. This encourages the importance of evaluating foundation resilience against the latest standards because the latest standards show an increase in the Peak Ground Acceleration value. This research aims to determine the Safety Factor (FK) and settlement of the existing foundation of a 3000 bbl petroleum storage tank at the Collecting Station in PALI Regency using earthquake parameters in 2022. A quantitative approach was carried out using finite element and analytical analysis. Steel tank structure design, soil investigation, loads, earthquake parameters, and existing foundation design are used. FK and settlement results will be evaluated based on API 650 and SNI 8604:2017 requirements. The analytical and finite element research results show that the FK value meets the requirements. However, the FK value obtained tends to be too large compared to the requirements. Therefore, it is recommended to design a foundation size smaller than the existing foundation as an efficiency measure. Apart from that, the settlement results at the end of the service life (50th year) show that it is still within the settlement limit permitted by API 650. The research results have confirmed that the existing foundation can withstand earthquakes based on earthquake parameters in 2022. So, these results can be used to develop tank foundation designs for earthquake-safe oil storage in similar locations.

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