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INDONESIA
Jurnal Jalan Jembatan
Published by Pusat Penelitian dan Pengembangan Jalan dan Jembatan
ISSN : 19070284     EISSN : 25278681     DOI : -
Core Subject : Engineering,
Civil Engineering, Building, Construction & Architecture Engineering Transportation
Jurnal Jalan-Jembatan adalah wadah informasi bidang Jalan dan Jembatan berupa hasil penelitian, studi kepustakaan maupun tulisan ilmiah terkait yang meliputi Bidang Bahan dan Perkerasan Jalan, Geoteknik Jalan, Transportasi dan Teknik Lalu-Lintas serta Lingkungan Jalan, Jembatan dan Bangunan Pelengkap Jalan. Terbit pertama kali tahun 1984, dengan frekuensi terbit tiga kali setahun pada bulan April, Agustus, dan Desember. Mulai tahun 2016 terbit dengan frekuensi dua kali setahun, edisi Januari - Juni dan edisi Juli - Desember, dalam versi cetak dan versi elektronik.
Arjuna Subject : -
Articles 5 Documents
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Search results for , issue "Vol 37 No 1 (2020)" : 5 Documents clear
ANALISIS POTENSI LIKUIFAKSI PADA PESISIR PULAU OBA, MALUKU UTARA Dzakirah, Farras Puti; Wulandari, Sri
Jurnal Jalan-Jembatan Vol 37 No 1 (2020)
Publisher : Direktorat Bina Teknik Jalan dan Jembatan

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Abstract

Liquefaction is a process or event that changes its nature from a solid to a liquid state, which is caused by cyclic loads during an earthquake. Various methods have been developed by experts to analyze the potential of liquefaction, both through investigations in the laboratory (sieve analysis test and unit weightl) and in the field, SPT and CPT. This study uses the results of SPT field tests and laboratory tests on the coast of Oba island, in the North Maluku Packing Plant building to evaluate the potential liquefaction that occurrs at that location because based on the 2017 Earthquake Map Book the study area is an earthquake-prone with a bedrock earthquake 0,4 – 0,5 g. Calculation of liquefaction potential using the deterministic method of Idriss-Boulanger and Koester & Tsuchida, the maximum acceleration of the land surface is calculated based on the 2010 Indonesian Earthquake Hazard Map. Calculation results show that liquefaction potential in location studies occurs at depths that have low soil density and in water saturation conditions. Soil that has a liquefaction potential occurs when the soil strength is less than the earthquake load (CRR <CSR), indicated by the safety factor value, FK < 1 and based on laboratory tests this soil is classified as poorly graded soil. Analysis of liquefaction potential related to the thickness of the layer approved by the liquefaction varies between 6 and 14 meters when an earthquake occurs with varying minimum magnitude values.Keywords: liquefaction, SPT, deterministic, idriss-boulanger, tsuchida.
STABILISASI TANAH LEMPUNG MENGGUNAKAN CAMPURAN ABU SEKAM PADI DAN KAPUR DIEVALUASI DARI NILAI CBR UNSOAKED Sajati, Anis Fajar; Wulandari, Sri
Jurnal Jalan-Jembatan Vol 37 No 1 (2020)
Publisher : Direktorat Bina Teknik Jalan dan Jembatan

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Abstract

The quality of original soil in the Hambalang area of Citeureup - Bogor, virtualy shows low density mainly the unsoaked CBR value therefore unusable for subgrade stucture, and can cause road construction to be easily damaged. Soil stabilization conducted in this research is chemical stabilization using the selected mixture was rice husk ash (ASP) and lime. This test carried out with clayey by adding a mixture of rice husk ash and lime in a variation of clayey weight percentage of 0%, 4%, 8% and 12% of the dry weight of the soil, where the ratio between lime and rice husk ash is 50%: 50% and each mixture made as many as 3 samples. Water content in the original soil was 75.2 % decreased to 49.5% at 12% variation. The mixture of rice husk ash and lime ash makes the value of the liquid limit (LL), plastic limit (PL), and shrinkage limit (SL) decrease. This shows that the effect of rice husk ash and lime as added material in soil improvement has changed the technical properties of expansive clay for the better. CBR soil test increases significantly. CBR in the original soil of 1.9% increased to 8.0% in the rice ash husk plus lime mixture 4%, then experienced a significant increase in the 8% rice ash husk plus lime mixture that is 30.1%, and in the rice ash husk plus lime mixture 12% decreased to 10.7%. it can be concluded that the optimum undistrube CBR obtained at mixing with a percentage of 8% is 30.1%.Keywords: Stabilization, road, clay soil, mixture, optimum, CBR
PENGARUH KANDUNGAN MINERAL PADA TANAH PASIR TERHADAP NILAI CBR TANAH Rahmanto, Adam Dwi; Wulandari, Sri
Jurnal Jalan-Jembatan Vol 37 No 1 (2020)
Publisher : Direktorat Bina Teknik Jalan dan Jembatan

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Abstract

Value of CBR is important in the planning of road pavement. Meanwhile, the CBR value of a material is very diverse and not necessarily the landfill material with a CBR value that meets specifications available easily and quickly. Therefore results of this study are expected to be a reference in determining which sand should be used for a road foundation if mineral content is known. This study was conducted by taking 3 sand samples from 3 different locations (Depok, Indramayu, and Tangerang). These samples were tested to determine physical properties, mechanical properties and mineral content. Based on the results of the particle size distribution analysis, we can see the effect between the percentage of clay and silt with the CBR value of each sand sample. The less the clay and the silt content in the sand sample, the smaller the CBR value obtained. While based on the results of x-ray diffraction testing, it can be concluded that the dominant SiO2 and Fe2O3 minerals can be approved to increase the CBR value. This is consistent with the level of Mohs hardness of these minerals, because the level of hardness of two minerals is the highest among other minerals contained in all samples. So, it can also be concluded that if a sand contains minerals with a high level of Mohs hardness, the greater CBR value of sand can be obtained.Keywords: soil investigation, sand, CBR, mineral content, x-ray diffraction.
ANALISIS PENURUNAN TANAH GAMBUT DENGAN TIMBUNAN YANG DIPERKUAT GRID BAMBU DAN TIANG BETON Nst, Taufik Hidayah; Waruwu, Aazokhi
Jurnal Jalan-Jembatan Vol 37 No 1 (2020)
Publisher : Direktorat Bina Teknik Jalan dan Jembatan

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Abstract

Tanah gambut memiliki daya dukung yang rendah ketika menerima beban timbunan dan beban lainnya pada konstruksi jalan. Kombinasi grid bambu dengan tiang beton berpotensi meningkatkan daya dukung dan memperkecil penurunan, untuk itu perlu penelitian seberapa besar pengaruh panjang dan jarak tiang dalam mengurangi penurunan akibat beban timbunan. Perkiraan penurunan dalam waktu yang lama perlu dilakukan dengan metode hiperbolik dan simulasi numeris dengan Plaxis 2D sebagai dasar perancangan. Penelitian ini dilakukan dengan pengamatan melalui model skala kecil di laboratorium pada tanah gambut dengan perkuatan grid bambu dan tiang beton yang dibebani dengan model beban timbunan. Analisis penurunan dilakukan dengan menggunakan metode hiperbolik dan simulasi numeris dengan Plaxis 2D untuk mengetahui perilaku deformasi tanah dan distribusi tegangan akibat beban timbunan. Hasil penelitian menunjukkan bahwa perkuatan grid bambu dengan tiang beton dapat mengurangi penurunan akibat beban timbunan. Analisis penurunan metode hiperbolik mendekati sama dengan data pengamatan, sedangkan simulasi numeris dengan Plaxis 2D lebih besar daripada metode lainnya. Perilaku deformasi tanah dan distribusi tegangan akibat beban timbunan dapat diketahui dari simulasi numeris dengan Plaxis 2D.Kata Kunci: tanah gambut, penurunan, deformasi, pemampatan, distribusi tegangan, grid bambu dan tiang beton.
RADIUS PUTAR KENDARAAN DESAIN UNTUK PERANCANGAN GEOMETRIK JALAN DI INDONESIA Lawalata, Greece Maria; Rahman, Faisal
Jurnal Jalan-Jembatan Vol 37 No 1 (2020)
Publisher : Direktorat Bina Teknik Jalan dan Jembatan

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Abstract

ABSTRACT Designing the width of the vehicle lane must consider the type of vehicle that passes through it. This is obtained by knowing the dimensions of the vehicle and the vehicle's wheelbase. From these two data we can find out the wheel tracks and the outer size of the vehicle body (sweeping path). This paper is intended to determine the turning radius of a design vehicle for the geometric design of the road. The design vehicles in question are the vehicles whose dimensions are mentioned in various regulations and vehicles which are the dominant results of research on the Road and Bridge Research and Development Center. The method used is a literature study of the rules and research results of the Road and Bridge Research and Development Center. Determination of the turning radius of the vehicle is done using the Autoturn software application with the assumption: flat pavement surface, the tire does not slip, the vehicle steering lock is 40o, the steering angle is 31.6o, the U-turn maneuver is 180o. The results showed that there were 17 vehicles that became design vehicles equipped with a turning radius. There are 2 vehicles that have 2 vehicles that have a turning radius of more than 12 meters. Keywords: vehicle turning radius, vehicle trail, vehicle design, vehicle dimensions, road geometric procedures.

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