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All Journal Bumi Lestari Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Journal of Degraded and Mining Lands Management Rekayasa Sipil Jurnal Teknik Journal of Geoscience, Engineering, Environment, and Technology RACIC : Rab Construction Research Jurnal Rekayasa Sipil Seminar Nasional Lahan Suboptimal JURNAL SAINTIS APTEK Journal of Infrastructure and Civil Engineering SAINSTEK Jurnal Teknologi & Rekayasa Sipil SLUMP TeS : Jurnal Teknik Sipil Journal of Infrastructure and Construction Technology
Muhamad Yusa
Jurusan Teknik Sipil, Fakultas Teknik, Universitas Riau, Pekanbaru, Provinsi Riau, Indonesia
Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Earth & Planetary Sciences Electrical & Electronics Engineering Energy Engineering Environmental Science Materials Science & Nanotechnology Mechanical Engineering Physics Transportation Other

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Karakteristik Uji Marshall Campuran Laston Asphalt Treated Base (ATB) Dengan Limbah Beton Sebagai Substitusi Bahan Agregat Kasar Jannika Suhelmi; Muhammad Shalahuddin; Muhamad Yusa
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 6 (2019): Edisi 1 Januari s/d Juni 2019
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Infrastructure boom requires a large amount of aggregate which is non renewable. On the other hand infrastructure construction create some amount of concrete waste which might be recycled. This study investigated marshall characteristic of Asphalt Treated Base using concrete waste as coarse aggregate substitution. Concrete waste was mixed with fresh aggregate at ratio of 100:0, 75:25, 50:50, 25:75 and 0:100 asphalt content varied are 5%, 5.5%, 6%, 6.5% and 7%. The optimum aggregate contents for each variation i.e. 6.05%, 6%, 6.5%, 6.5% and 6% respectively. The results show that all variation fulfilled the specification the 75:25 variation was recommended as mixture ratio with high stability value 2.320 kg and also asphalth content was affordable with 6% of optimum asphalt content.Keywords: Waste concrete, aggregate, asphalt treated base (ATB)
Karakteristik Sifat Mekanis Dan Fisik Tanah Lunak Di Kota Dumai Berdasarkan Pengujian Dokenbo Dan Vane Shear Muhammad Naufal; Muhamad Yusa; Ferry Fatnanta
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 8 (2021): Edisi 2 Juli s/d Desember 2021
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Soft soil has low shear strength and high compressibility. In this study, portable tools i.e. Dokenbo tool and field Vane Shear were used to determine mechanical characteristics of soft soil quickly and cheaply. Dokenbo is a relatively new field method, developed by the National Institute of Civil Engineering in Japan, to measure shear strength of soft soil. Obtained parameters from Dokenbo are penetration and torsion. This study aimed to determine range of shear strength values from both methods. Correlation of mechanical properties from Dokenbo and Vane Shear was also analyzed. Likewise, correlation between Dokenbo results and soil physical properties. The test was carried out at 3 points field test in Lubuk Gaung Village, Dumai City. From the research, it was obtained that the type of soil was soft soil based on the value of shear strength (Su) with a range of 12-25 kPa. Soil consistency based on the value of penetration resistance is moderately stiff with a value range of 500-1000 kN/m2. Statistical analysis show that penetration value is directly proportional to the Su value, if the penetration value is large, the Su value also increases. Penetration and internal shear angle has a very low correlation. While there is low correlation between penetration and physical properties, where there is no good data connection. Keywords: Soft soil, Shear Strength, Dokenbo, Vane Shear
Karakteristik Sifat Mekanis Dan Fisik Tanah Lunak Di Kabupaten Siak Berdasarkan Pengujian Dokenbo Dan Vane Shear Arifan Farhan; Muhamad Yusa; Ferry Fatnanta
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 8 (2021): Edisi 2 Juli s/d Desember 2021
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Soft to very soil is widely encountered in Siak Regency. Physical and mechanical properties of soft soil is very important in the construction. This research was an attempt to characterize the soil properties using portable tools namely, Dokenbo and vane shear. Dokenbo is a in-situ soil testing tool which was recently developed by the Public Works Research Institute in Japan. The Parameterswhich were obtained from the Dokenbo test includes the value of penetration, torque (T0), and the shear angle in the soil (Ø). Vane Shear test was conducted to obtain undrained shear strength in the field. The purpose of this study is to obtain a simple relationship (correlation) between the mechanical properties of using Dokenbo and Vane Shear, and the correlation between mechanicalproperties and soil physical properties. Vane Shear and Dokenbo was used to obtain mechanical properties while physical properties were obtained from laboratory testing. The results then were analyzed using linear regression. The results of the Dokenbo test in this study includes the penetrationvalue in the range from 418 to 1373 kN/m2, the torque value (T0) in the range from 0,3 to 0,65 N.m, and the internal shear angle (Ø) was in the 24o to 60o range. Soil shear strength value from vane shear test results range from 6 to 64 kPa. From the test results obtained, the correlation betweenpenetration and shear strength (Su) has a very strong interpretation, likewise is the correlation between the correlation (T0) and Su. The internal shear angle (Ø) correlation and Su shows no correlation. Meanwhile, the correlation between mechanical properties and soil physical properties has a moderate correlation.Keywords: Dokenbo, Shear Strength, Penetration, Torque, Inner Shear Angle
Analisis Deflectometry Dan Overlay Metode Bina Marga 2017 Pada Jalan SM Amin Kota Pekanbaru Bagus Muhammad Akbar; Elianora Elianora; Muhamad Yusa
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 6 (2019): Edisi 2 Juli s/d Desember 2019
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Road is one of transportation infrastructure which has very important role in economic growth in rural or urban areas. SM Amin Road is located in Payung Sekaki District and this road is an arterial road that has 2 track and 6 lanes. SM Amin road has length of 8.14 km and widthof 8 m. The road was previously overlayed in 2016 because the road was damaged such as swelling, potholes, and cracks. At present (2019) the road is damaged again so that it could be dangerous for road users. This study analyzed deflectometry result from benkelman beam. Theresults reveal that the subgrade is in poor condition. The condition was analyzed using 2017 Bina Marga Method, it shows that overlay is required along STA 03+900 until 05+200 with the thickness of 11 cm. The results of the deflectometry analysis shows that Jalan SM Amin hasa poor subgrade, so it is necessary to be improved. However, handling using structural overlays according to the 2017 Bina Marga Method can be used to reduce the stress which received bythe subgrade so that it can minimize the cost of pavement repair.Keywords: 2017 Bina Marga Method, Benkelman Beam, Deflection, Deflectometry, Overlay
Pengaruh Efek Smear Terhadap Pola Pemasangan dan Jarak Pemasangan Pada Perbaikan Tanah Dengan Prefabricated Vertical Drain: (Studi Kasus : Proyek Perpanjangan Runway Sultan Thaha Syaifuddin, Provinsi Jambi) Daniel Irfan; Muhamad Yusa; Ferry Fatnanta
JURNAL TEKNIK Vol. 15 No. 1 (2021): Edisi April 2021
Publisher : JURNAL TEKNIK UNILAK

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31849/teknik.v15i2.5581

Abstract

Peningkatan lalu lintas udara di Bandar Udara Sultan Thaha Syaifuddin yang berada di Provinsi Jambi mengalami peningkatan setiap tahunnya. Pemerintah Provinsi Jambi bersama PT. Angkasa Pura II melakukan peningkatkan fasilitas bandara dan peningkatan klasifikasi bandara menjadi bandara internasional yakni dengan melakukan perpanjangan runway dan pembangunan gedung terminal. Dari investigasi tanah yang dilakukan pada area perpanjangan runway, hasil N-SPT relatif rendah dan dengan jenis tanah lempung yang memiliki sifat daya dukung yang rendah, kembang susut yang tinggi, waktu konsolidasi yang lambat dan besarnya settlement sehingga perlu dilakukan perbaikan tanah dengan metode Prefabricated Vertical Drain (PVD). Analisis yang dilakukan adalah perbaikan tanah dengan PVD yang diberi Preloading dan memperhitungkan efek smear. Pada penelitian dilakukan variasi pola pemasangan yakni segitiga dan segiempat serta jarak pemasangan PVD (s) yakni = 1,0 m, 1,2 m dan 1,4 m. Dari hasil analisis yang dilakukan diperoleh peningkatan daya dukung tanah dasar permukaan, waktu konsolidasi yang semakin singkat, dan settlement terjadi untuk semua variasi sama yakni sebesar 1,42 m. Dari variasi penelitian yang dilakukan, pola pemasangan segitiga dengan jarak pemasangan PVD (s) = 1,0 m menjadi variasi yang efektif, karena waktu konsolidasi yang paling singkat yakni 1,03 tahun.
Model Hidrolika untuk Analisis Efektifitas Penyekatan Kanal di Lahan Gambut Sigit Sutikno; Eka Saputra; Muhamad Yusa
JURNAL TEKNIK Vol. 15 No. 1 (2021): Edisi April 2021
Publisher : JURNAL TEKNIK UNILAK

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31849/teknik.v15i1.5802

Abstract

Peatland fires are a recurring phenomenon and become the biggest problem in peatland protection in Indonesia. Generally, peatlands in the dry season have limited water availability that may cause drought and fire. On the other hand, in the rainy season, the water in the canals is excessive that may cause floods. To overcome this problem, canal blocking should be made. This research simulates the water profile along the canal by hydraulic modeling using HEC-RAS to understand the effectiveness of canal blocking. Canal blocking at Sungai Tohor village was picked up as research site for modelling. The calibration process, this study used discharge measurements data that was measured repeatedly at dry season and rainy season. The modeling was simulated on several scenarios in the dry and rainy season with the goal of ground water depth was not lower thans 40 cm. The results of this study indicate the application of the hydraulic model at the calibration stage obtained values of R = 0.9981 and RMSE = 0.02503, Manning's coefficient of roughness was taken as 0.04. The model can predict well the water profile along the canal if the conditions without canal blocking or canal blocking conditions are in the dry season and the rainy season.
Evaluasi Kinerja Perbaikan Tanah Menggunakan Metode Vacuum Consolidation Pada Perluasan Bandara Di Kota Jambi: Vacuum Consolidation Rafika Rani Zainuddin; Muhamad Yusa; Ferry Fatnanta
JURNAL TEKNIK Vol. 16 No. 1 (2022): Edisi April 2022
Publisher : JURNAL TEKNIK UNILAK

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31849/teknik.v16i1.8420

Abstract

ABSTRAK Bandara Sultan Thaha saat ini sedang diadakan Pekerjaan Perpanjangan Runway, pekerjaan perpanjangan runway ini dilakukan sepanjang 390 m ditambah panjang Stopway 60 m dan Panjang RESA 90 m. Kondisi tanah dasar disepanjang lokasi perpanjangan runway ini menurut data perencanaan adalah tergolong soft hingga very stiff clay disetiap kedalaman, muka air tanah dikedalaman -3 m maka perlu dilakukan perbaikan tanah. Seperti yang umumnya diketahui penggunaan PVD Surcharge harus disertai dengan pemberian beban (preloading) guna menimbulkan efek perbedaan tegangan di dalam tanah dan di permukaan tanah sehingga air dapat mengalir dengan mudah yang kemudian dipercepat melalui jalur-jalur Vertical Drain yang telah ditanam. Namun timbunan yang tinggi menyebabkan operasional bandara dapat terganggu karena tinggi tanah timbunan (preloading). Oleh sebab itu digunakan metode Vacuum Consolidation. Metode perbaikan tanah ini memasangkan pompa pada saluran yang akan disambungkan pada PVD yang menerapkan pengisapan vakum ke massa tanah yang terisolasi, mengurangi tekanan atmosfir di dalamnya, sehingga dengan mengurangi tekanan air pori di tanah sehingga tegangan efektif meningkat tanpa mengubah tegangan total. Hasil perhitungan menunjukkan besar penurunan konsolidasi yang terjadi dengan tekanan vakum sebesar 80 kPa dimana PVD dipasang segi empat dengan jarak 1.3 m memberikan hasil yang cukup signifikan yang dilihat dari segi penurunan dilapangan menggunakan instrumentasi geoteknik dan dilakukan analisis menggunakan Metode Observasi Asaoka dari settlement plate lapangan.
Analisis Likuefaksi Berdasarkan Data CPT Untuk Perancangan Pondasi Di Pesisir Pantai Kabupaten Kulon Progo DIY Vebrian Anggara; Ferry Fatnanta; Muhamad Yusa
Jurnal Rekayasa Sipil (JRS-Unand) Vol 16, No 2 (2020)
Publisher : Civil Engineering Departement, Andalas University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jrs.16.2.77-90.2020

Abstract

Yogyakarta Special Region (DIY) is an area that has a high level of seismic activity in Indonesia. This is due to various local faults near the land and its location adjacent to the subduction of the Indo-Australian and Eurasian plates. The proposed new airport is located on the coast in Kulon Progo Regency DIY. The location is dominated by the sands layer and it has high ground water levels which indicate the high potential of liquefaction. The site classes of the coast in Kulon Progo Regency is medium category (SD). Liquefaction analysis using the PGAM value of 0.4 g. Liquefaction has the potential to occur in soil layers 0 - 6 meters. The analysis shows for eartquake of ≥ 6.3 Mw has a very high category of liquefaction. The analysis results has LPI ≥ 29.30 for ground water conditions at the surface, and LPI ≥ 15.32 for ground water conditions in depths of 3 meters. Estimated soil settlements of 19.7 cm for magnitude of 8.1 Mw with ground water conditions at the surface. The use of shallow foundations at soil depths of 0-6 meters is not recommended, unless a soil improvement method is used to eliminate the potential for liquefaction.
PENGGUNAAN ERT (ELECTRICAL RESISTIVITY TOMOGRAPHY) UNTUK ANALISIS KARAKTERISTIK GAMBUT DAN CADANGAN KARBON DI PULAU BENGKALIS Wahyu Frisnel; Sigit Sutikno; Muhamad Yusa
Aptek Jurnal Apliksai Teknologi (APTEK): Volume 11, No. 02, Juli 2019
Publisher : Fakultas Teknik Universitas Pasir Pengaraian

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (295.383 KB) | DOI: 10.30606/aptek.v11i2.140

Abstract

Penelitian ini berkaitan dengan penggunaan ERT(Electrical Resistivity Tomography) untuk analisis karakteristik gambut dan cadangan karbon. Penggunaan ERT pada kegitan ini dibantu oleh GPS RTK untuk mengetahui koordinat dan elevasi titik yang disurvei, dan bor tangan untuk mengetahui kedalaman gambut. Penggunaan ERT dilapangan menerapkan metode transek, sehingga didapat data koordinat dan ketebalan gambut akan dapat digambarkan peta kontur ketebalan gambutnya. Hasil analisis pada 12 titik di teliti, memiliki rata-rata ketebalan gambutnya 6,19 meter. data elevasi IPP,ketebalan gambut menunjukkan bahwa ada korelasi yang relatif kuat antara elevasi tanah dan kedalaman gambut dengan R = 0,8964 dan koefisien determinasi R2 = 0,7205. Ada 72% dari elevasi tanah ditentukan oleh kedalaman gambut yang mendalam, dan 28% ditentukan oleh variabel lain. Ditemukan beberapa hasil survey geolistrik tidak sama dengan hasil bor tangan dilapangan. Cadangan karbon di pulau Bengkalis tersimpan 214,34371 Ton/ha di setiap ketebalan 50 cm. Ketebalan gambut berpengaruh terhadap muka air tanah sebesar 2,8%. Sedangkan sisanya 77,2% dipengaruhi oleh faktor lain. Nilai resistivity berpengaruh terhadap kematangan gambut sebesar 3,6%. Sedangkan sisanya 96,6% dipengaruhi oleh faktor lain.
Pengaruh Bentuk Partikel dan Waktu Pembebanan Terhadap Kuat Geser Tanah Pasir Azizah .; Muhamad Yusa; Ferry Fatnanta
Aptek Jurnal Apliksai Teknologi (APTEK): Volume 13, No. 01, Januari 2021
Publisher : Fakultas Teknik Universitas Pasir Pengaraian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30606/aptek.v13i1.483

Abstract

Time is a scale which is the duration of an event and the shape of the sand grains, is one of the factors that influence the technical properties of sand on its shear strength. The purpose of this study was to determine how to analyze the time required and the shape of the sand grains in analyzing the behavior of the shear angle (ϕ) due to the influence of grading and grain shape. The results showed, analysis of the form of sand grains using imageJ, obtained the level of the grains of the two sands, namely semi angular and semi-round. The ratio of the shear angles between the variations of the gradations, namely the gradient which is dominated by the coarse grain fraction of 60%, and the gradation which has a long grain distribution, has a high shear angle (ϕ). The ratio of the shear angle between the sand grains, namely sand with a semi-angled shape has a higher shear angle (ϕ) than sand with a semi-spherical shape.
Co-Authors Abdul Halim Muqorrobin Abdullah Ihsan Alkubuwi Agisman, Fandy Agus Ika Putra Agus Nugroho, Soewignjo Ahmad Muhammad Akbar, Bagus Muhammad Alex Kurniawandy Ananda, Rizki Fajri Andy Hendri, MT, Andy Anggara, Vebrian Annisa Soraya Hasibuan Ari Sandhyavitri Arifan Farhan Ary Iqbal Azizah . Bambang Sujatmoko Daly Riandi Daniel Irfan Dian Paramita Eka Saputra Eko Soebowo Elianora - Endala Siboro Esther RA Fadli Dirga Subardi Ferry Fatnanta Fitri Herawati Frans Rezal Frimadofi Frimadofi Genta Putra Adietama Gina Khusnul Khotimah Gunawan Wibisono Gunawan Wibisono Gustika, Rani Ardeylina Hanif, Ardian Hasibuan, Putra S Himmatul Azizah Indradi Wijatmiko Jannika Suhelmi Jufri, Afdirman Kusairi, Muhammad Leo Sentosa Lisa Trisnawati Lita Darmayanti Muhamad Azizi Muhammad Naufal Muhammad Riyan Sabri Muhammad Shalahuddin Muhammad Shalahuddin Muhammad Taufik MUHAMMAD TAUFIK Muhardi Muhardi Muhardi Muhardi Nova, Septi Devita Nurul Qomar Oki Chandra Ongko, Andarsin Panji Tegar Aji Pratama, Deni Rafika Rani Zainuddin Rahmatul Irfan Rakhmat Minanggi Purba, Rakhmat Minanggi Ridho Ilahi Rinaldi Rinaldi Ronny Tigor Sitanggang Ropiska Alfareza Satibi, Syawal Sihaloho, Dodi Seprades Simanjuntak, Lambok Jadiaman Soewignjo Agus Nugroho Sutikno, Sigit Vebrian Anggara Wahyu Frisnel Yoyon Kurniawan