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All Journal Jurnal Rekayasa Jurnal Rekayasa Sipil dan Desain Khasanah Ilmu - Jurnal Pariwisata Dan Budaya Spatial : Wahana Komunikasi dan Informasi Geografi Journal of Innovation and Technology Warta AKAB Cendekia: Jurnal Ilmu Sosial, Bahasa dan Pendidikan E-JRM Al-Khidmah: Jurnal Pengabdian Kepada Masyarakat Kegiatan Positif : Jurnal Hasil Karya Pengabdian Masyarakat Jurnal Ilmiah Research Student Indonesian Journal of Environment and Sustainability Issues Menulis: Jurnal Penelitian Nusantara
Ahmad Zakaria
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Religion Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Social Sciences Other

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Daftar Isi Jurnal Rekayasa Edisi April 2015 Ahmad Zakaria
Rekayasa : Jurnal Ilmiah Fakultas Teknik Universitas Lampung Vol 19, No 1 (2015): Edisi April 2015
Publisher : UNIVERSITAS LAMPUNG

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Daftar Isi Jurnal Rekayasa Edisi April 2015
Petunjuk Penulisan Makalah di Jurnal Rekayasa Ahmad Zakaria
Rekayasa : Jurnal Ilmiah Fakultas Teknik Universitas Lampung Vol 13, No 2 (2009): Edisi Agustus Tahun 2009
Publisher : UNIVERSITAS LAMPUNG

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Petunjuk Penulisan Makalah di Jurnal Rekayasa
Daftar Isi Jurnal Rekayasa Edisi Desember 2013 Ahmad Zakaria
Rekayasa : Jurnal Ilmiah Fakultas Teknik Universitas Lampung Vol 17, No 3 (2013): Edisi Desember 2013
Publisher : UNIVERSITAS LAMPUNG

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Daftar Isi Jurnal Rekayasa Edisi Desember 2013
Sampul Muka Jurnal Rekayasa Edisi Agustus 2012 Ahmad Zakaria
Rekayasa : Jurnal Ilmiah Fakultas Teknik Universitas Lampung Vol 16, No 2 (2012): Edisi Agustus 2012
Publisher : UNIVERSITAS LAMPUNG

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Sampul Muka Jurnal Rekayasa Edisi Agustus 2012
Sampul Muka Jurnal Rekayasa Edisi Desember 2012 Ahmad Zakaria
Rekayasa : Jurnal Ilmiah Fakultas Teknik Universitas Lampung Vol 16, No 3 (2012): Edisi Desember 2012
Publisher : UNIVERSITAS LAMPUNG

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Sampul Muka Jurnal Rekayasa Edisi Desember 2012
Analisis Data Curah Hujan yang Hilang dengan Menggunakan Metode Normal Ratio, Inversed Square Distance, Rata - Rata Aljabar dan Metode Modifikasi Rizki Lazuardi Prasetio; Ahmad Zakaria; Ashruri Ashruri; Sumiharni Sumiharni
Jurnal Rekayasa Sipil dan Desain Vol 9, No 3 (2021): Edisi September 2021
Publisher : Jurnal Rekayasa Sipil dan Desain

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Penelitian ini dilakukan dengan tujuan untuk menghitung korelasi data curah hujan terukur dengan data curah hujan hasil perhitungan dengan masing-masing metode menggunakan lima stasiun.Dari hasil penilitian menggunakan metode Rata-Rata Aljabar, metode Normal Ratio, metode Inversed Square Distance dan metode Modifikasi dengan data hujan harian satu tahun, data hujan kumulatif bulanan, maupun data hujan rata-rata bulanan, dapat diambil kesimpulan semakin banyak jumlah stasiun maka semakin baik nilai korelasinya. Nilai korelasi dengan data hujan kumulatif bulanan sertadata hujan rata-rata bulanan menggunakan beberapa jumlah stasiun yang berbeda setiap masing - masing metode tidak ada perbedaan yang signifikan dengan nilai rata-rata korelasi persentase perbedaannya 0,049% sampai dengan 0,059%.
Analysis Factor Safety of Slopes With Sandy Loam Soil Types on Conditions Not Saturated, Saturated Conditions and Partially Saturated Conditions Using Computing Program Datra Peta Saputra; Lusmeilia Afriani; Ahmad Zakaria
Jurnal Rekayasa Sipil dan Desain Vol 8, No 1 (2020): Edisi Maret 2020
Publisher : Jurnal Rekayasa Sipil dan Desain

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Natural disasters often occur in hilly areas in Lampung Province, namely landslides. Landslides that occur due to increased pore water pressure. The 2012 GeoStudio SLOPE / W program can analyze slope stability that can be modeled according to the original conditions in the field and can know the value of the safe slope factor. In this study, there were three cross section slopes with three groundwater conditions, namely the condition of the groundwater level at the base of the slope, half the height of the slope and following the maximum height of the cross section of the slope. Land property data needed include : cohesion, shear angle in soil and weight of soil contents. Slope stability is achieved when the retention force is greater than the driving force. The results of the analysis of slope stability show that the condition of the groundwater is very influential on slope stability, can be seen from the results of GeoStudio SLOPE / W 2012 analysis in simulation 1 and simulation 2 safe factor values obtained >1.25 that is  slopes are in safe status, while in simulation 3 the saturated condition has a safe factor <1,25 that is unsafe slopes or landslides, it is recommended to take care to prevent landslides. Key words : soil, slope stability, safety factor, geostudio slope/w 2012
Comparative Analysis of Tidal Data from Forecasting Results with Measured Tide Data (Meneng Tidal Station Case Study) Bagus Mustofa Purna; Ahmad Zakaria; Mariyanto Mariyanto
Jurnal Rekayasa Sipil dan Desain Vol 9, No 2 (2021): Edisi Juni 2021
Publisher : Jurnal Rekayasa Sipil dan Desain

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AbstractThis research to find the similarity of the tidal characteristics of sea water, especially in the sea waters in the Meneng station area, where the data used is both hourly tide data from tide data from the website http: //tides.big.go.id and field measured tidal data for a period of 5 years, from 1988 to 1992 at the Meneng tidal station, East Java, Indonesia. The data used in this research have a minimum data length of 720 hours or 30 days, using 9 tidal harmonic components using the least squares method and then converted into the ANFOR program (Zakaria, 2005), this program can produce a periodic tidal data model. including the amplitude value that can be used to see a tidal characteristic of sea water. After the tidal data is modeled and analyzed, the correlation coefficient is generated. From the results of this study, it can be concluded that the component results obtained from the hourly tide data from the website http://tides.big.go.id and field measured data have something in common with the generated tidal components. The average correlation coefficient of the two data is 0.8010 and is included in the very good category. Keywords: tides, ANFOR, correlation coefficient
Studi Hubungan Pengembangan (Swelling) dengan Tebal Perkerasan pada Subgrade Jalan Yang Dicampur dengan Material Pasir M. Fahmi Rinaldi; Iswan Iswan; Ahmad Zakaria
Jurnal Rekayasa Sipil dan Desain Vol 8, No 2 (2020): Edisi Juni 2020
Publisher : Jurnal Rekayasa Sipil dan Desain

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Tanah lempung dengan plastisitas tinggi, kohesifitas yang besar berakibat fluktuasi kembang susut yang relatif besar. Hal ini yang menyebabkan kondisi jalan yang dibangun diatas tanah lempung sering kali mengalami kerusakan. Untuk mengatasi masalah tanah tersebut, dalam merencanakan bangunan teknik sipil di Indonesia memerlukan beberapa perlakuan untuk membuat tanah menjadi lebih stabil. Oleh karena itu dalam penelitian ini dilakukan perbaikan tanah dengan cara memperbaiki gradasinya yaitu mencampur lempung (tanah asli) dengan pasir (gradasi lebih besar). Sampel tanah yang digunakan pada penelitian ini berasal dari Ruas Jalan R.A.Basyid, Kecamatan Jati Agung, Lampung Selatan pada STA 3+100 dan variasi pasir yang digunakan yaitu 0, 5, 10 dan 15 % dari berat tanah. Adapun pengujian yang dilakukan pada penelitian ini adalah pengujian CBR dari efek pegembangan tanah, lalu dilakukan perhitungan tebal perkerasan dengan metode analisa komponen SKBI 2.3.26.1987. Pada penelitian inisampel tanah yang digunakan termasuk kelompok A-7-6atau jenis tanah yang buruk. Setelah penambahan variasi pasir, batas plastis tanah tersebut meningkat sedangkan batas cair dan indeks plastisitas menurun, hal ini mengakibatkan pengembangan tanah terjadi penurunan pada 15% kapur yaitu dari 0,65% menjadi 0,15%, sedangkan nilai CBR mengalami peningkatan yang signifikan pada pasir 15% yaitu dari 2,0% menjadi 25,4%. Dengan hal ini tebal lapis menjadi lebih tipis, pada 0% kapur yaitu tebal D1=7,5 cm, D2=25 cm dan D3=44 cm, sedangkan pada 15% kapur tebal D1=5 cm, D2=18 cm dan D3 tidak digunakan.Kata kunci : CBR, Pengembangan Tanah, Tebal Perkerasan, Stabilisasi, Pa
Comparative Analysis of Measured Tidal Data with Tidal Data from Forecasting (Case Study of Tanjung Priok Tidal Station) Arif Dinaryoko; Ahmad Zakaria; Subuh Tugiono
Jurnal Rekayasa Sipil dan Desain Vol 9, No 1 (2021): Edisi Maret 2021
Publisher : Jurnal Rekayasa Sipil dan Desain

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AbstractThis research was conducted to study the tidal characteristics. The data used in this study are the hourly tide data measured in the field and the tidal data from the BIG with data length from 1985 to 1989 at the Tanjung Priok tidal station, Jakarta Province, Indonesia. This modeling is carried out using a data length of 30 days for a data term of 720. By using the observational data and applying it in the Anfor program which uses the least squares method, produces a tidal periodic model that is obtained using 9 tidal harmonic components. From the results of modeling and measured data it can be seen the correlation coefficient. Based on these results, it can be concluded that the measured tide data components with the BIG tide data components are similar. The average correlation coefficient between the two data sets was 0.9644. From this research it can be seen that the value of the tidal data is said to be very good. Keywords: daily tides, correlation coefficient
Co-Authors . Sumiharni Adira Salsabila Agus Ari Prasetyo Ahmad Herison AHMAD MUZAKKI Al Arif Febrian Amelia Nurul Damayanti Anggun Dwi Cahyani Fitri Annika Lukitawati Annisa Delia Putri Annisa Putri Dwi Septiansari Ardelia Zahirah Rahman Arif Dinaryoko Arya Jaya Sumbahan Ashfiya Salsabila Ashruri Ashruri Ashruri Aynuddin Aynuddin Ayu Ning Trias Pratiwi Badruzzaman Aji Bagus Mustofa Purna Bramesvara Arizona Brigitha Cindy Sitanaya Ciek Julyati Hisyam Damar Adi Perdana Datra Peta Saputra Dian Mira Fadela didit kuswadi kuswadi Dwi Joko Winarno Dwi Winda Sari Dwijoko Winarno Dyah Indriana Kusumastuti Dyah Kusumastuti Eko Adi Saputra Endro P Wahyono Endro Prasetyo Wahono Erizal Tanjung Esty Handayani Fachrurrazie Fachrurrazie Fadli Imran Faishal Muhammad Hanun Fajar Destri Atmoko Fajar Hartantio Fanny Prawaka Fitri Trisdiana Fuad Zikri Gatot Eko Susilo Geleng Perangin Angin Gita Putri Sadelina Giwa Wibawa Permana Haifa Muthi I Iswan I Komang Tri Herdiana Ibnu Tuhu Pangestu Idharmahadi Adha Ikhfan Kurniyawan Irvan Tegar Cesar Irwani Ninik Wijaya Iswan Iswan Ivana Aprili Andika Khansa Fay’i Safira Lintang Kurnia Aridini Lodewick Manurung Lovina Hasianna Tampubolon Lusmeilia Afriami Lusmeilia Afriani M Lucky Apriansyah Nawawi M Rizky Ismail M. Fahmi Rinaldi M. Haviz Mardiana Mardiana Mardiyansyah Mardiyansyah Margareta Welly Mariyanto Mariyanto Mesya Ashilah Muhammad Hendro Prawaka Muhammad Ijlal Ghaly Muhammad Naufal Agatha Muhammad Nur Kholiq Muhammad Sohib Muhammad Zaenal Arifin N. Rachma Nabilah Destin Amelia Nency Dwi Kusanti Nur Arifaini Ofik Taufik Purwadi Ofik Toupik Purwadi Panca Kurniawan Pusaka, Semerdanta Putri Mardiyanti Rahayu Sulistyorini Rama Dian Gani Rifki Ananda Saputro Riki Chandra Wijaya Riko Berli Ardian Rinaldi Pelawi Rini Puji Astuti Rio Dwi Septian Risdha Sagita Razak Rizki Lazuardi Prasetio Rizki Prinanda Umar Rizqi Kurniawan Sandy Kusuma Setyanto Setyanto Shelly Isya Ramadhani Sindu Abadi Sampurna Siti Nurul Khotimah Subuh Tugiono Sumiharni Sumiharni Suyadi Suyadi Syah, Aminudin Teguh Priadi Titik Ayuningsih Tri Budi Wibowo Tri Subakti Trisno Imany wahyu hadi kuncoro Wittri Djasmasari Yohanes Martono Hadi Yohannes Martono Hadi Yuda Romdania Yuda Romdania