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All Journal JURNAL TEKNIK SIPIL ITP ISSN 2354-8452 Jurnal Teknik Sipil International Conference on Engineering and Technology Development (ICETD) Jurnal Teknik Sipil Jurnal Momen : Teknik Sipil Suryakancana Jurnal Teknik Sipil Institut Teknologi Padang International Journal of Civil Engineering and Infrastructure (IJCEI) JIM: Jurnal Ilmiah Mahasiswa Pendidikan Sejarah
. Aprizal
Universitas Bandar Lampung
Humanities Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Education Engineering Environmental Science Social Sciences Transportation

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Perencanaan Embung Guna Menunjang Ketersediaan Air di Desa Branti Kecamatan Branti Kabupaten Lampung Selatan Aprizal APRIZAL
Jurnal Teknik Sipil Vol 4, No 2 (2013): Oktober
Publisher : Universitas Bandar Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1186.486 KB) | DOI: 10.36448/jts.v4i2.893

Abstract

Dari hasil perhitungan pada perencanaan embung guna menunjang ketersediaan air Desa Branti dapat disimpulkan sebagai berikut:1.Dari analisis hidrologi dengan data curah hujan dari stasiun R. 102 yang berlokasi di Branti , ditetapkan debit banjir rencana periode ulang 50 tahun adalah dengan debit 42,291 m3/detik,. Saluran peiimpah direncanakan dengan ketinggian muka air banjir maksimum 0,50 m dan lebar 20 m, kemudian aliran air dikembalikan lagi ke sungai asli pada hilir embung.Besarnya kapasitas tampungan yaitu berupa tampungan desain adalah 92.542.96 m34. Tubuh embung direncanakan berupa material urugan. homogen berupa tanah lempung yang kedap air dengan ketinggian pada batasan maksimum yaitu 10 meter dari galian pondasi. Besarnya kebutuhan air baku desa Branti untuk 20 tahun ke depan yaitu pada tahun 2026 sebesar 542,01 m3/hari. Dari perhitungan control berupa daya dukung tanah, dan kemantapan lereng maka tubuh embung dinyatakan aman. Dari analisis kapasitas tampungan kolam embung Branti sampai ketinggian maksimum masih belum mencukupi kebutuhan air di Desa Branti.
Analisa Perilaku Gelombang Air Setelah Melewati Breakwater Tenggelam Yang Berbentuk Tumpukan Pipa Wiby Febriando Edy; . Aprizal; Ilyas Sadad
Jurnal Teknik Sipil Vol 3, No 1 (2012): April
Publisher : Universitas Bandar Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (333.319 KB) | DOI: 10.36448/jts.v3i1.275

Abstract

Gelombang sangat mempengaruhi daerah pantai, baik terhadap garis pantai maupun terhadap struktur bangunan-bangunan yang berada di daerah pantai. Untuk melindungidaerah pantai dari serangan gelombang, pantai memerlukan perlindungan buatan berupa bangunan pemecah gelombang, yaitu suatu bangunan yang dimaksudkan untuk mereduksiatau menghancurkan energi gelombang. Penelitian ini bertujuan untuk mengetahui pengaruh peredaman gelombang oleh bangunan pemecah gelombang tipe tenggelam yangtersusun dari pipa setinggi 2,5m dan diletakan pada kedalaman 3m hingga 3,5m dengan gelombang rencana maksimum 1m. tinggi gelombang sebelum dan setelah teredam dihitung untuk melihat pengaruh penggunaan breakwater yang dipasang pada setiap variasi kedalaman breakwater terhadap muka air diam dan pada setiap beda panjang pipa yang digunakan. Penelitian ini difokuskan pada Kajian Model Fisik Difraksi Gelombang 1-D dan penelitian ini merupakan uji model pergerakan atau perjalanan gelombang melewati pemecah gelombang tenggelam di laboratorium dengan skala model 1 : 10. Hasil penelitian menunjukan bahwa tinggi gelombang yang diizinkan sampai ke pantai dapat diatur berdasarkan panjang pipa yang digunakan. Untuk kedalaman air 3m, di setiap perubahan panjang pipa sebesar 2m mampu menambah peredaman gelombang sebesar ± 6,12% dan untuk kedalaman air 3,5m, di setiap perubahan panjang pipa sebesar 2m mampu menambah peredaman gelombang sebesar ± 4,82%
Kajian Pola Tanam Daerah Irigasi Sekampung Sistem Provinsi Lampung Aprizal APRIZAL; MF. Nur Yuniar
Jurnal Teknik Sipil Vol 8, No 1 (2017): April
Publisher : Universitas Bandar Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1612.767 KB) | DOI: 10.36448/jts.v8i1.929

Abstract

Pola tanam adalah suatu urutan pola tanam pada sebidang lahan dalam satu tahun, termasuk didalamnya masa pengolahan tanah. Pelaksanaan pola tanam dari suatu daerah irigasi teknis dalam satu tahun, biasanya dilaksanakan berdasarkan Surat Keputusan Kepala Daerah setempat. Disamping pertimbangan untuk mendukung kebijakan pangan nasonal, penentuan pola tanam tersebut juga dibuat berdasarkan faktor ketersediaan air dan aspirasi petani. Dalam penulisan ini dibahas antara lain: Data Topografi, identifikasi pola tanam yang ada, analisa kebutuhan air, perhitungan debit andalan, perhitungan kebutuhan air yang ada, analisa pola tanam optimal, analisa besarnya potensi sumber daya air, mengetahui permasyalahan yang berkaitan dengan pola tanam serta ketepatan pemilihan model pola tanam sesuai dengan ketersediaan air yang ada pada daerah irigasi Sekampung Sistem. Daerah irigasi Sekampung Sistem yang mempunyai luas fungsional 66.573 Ha memiliki potensi air cukup memadai, memiliki petani mayoritas mempunyai karakter dengan melaksanakan pola tanam, sehingga produksifitas  pertanian di daerah irigasi Sekampung Sistem dirasakan berkurang. Berdasarkan kajian sebelumnya luas potensi ± 66.574 Ha, areal yang berfungsi seluas ± 55.373 Ha = 11.201 Ha (belum berfungsi). Setelah menganalisa berdasarkan kajian luas potensi ± 66.574 Ha, areal yang berfungsi seluas ± 57.320 Ha = 9.254 Ha (belum berfungsi), hal ini berarti areal yang belum berfungsi mengalami penurunan seluas ± 1.947 Ha,atau ada kenaikan sebesar 1,23 % sehingga pada daerah irigasi Sekampung Sistem areal yang ada belum dapat dimanfaatkan  seluas ± 9.254 Ha. Pada Daerah Irigasi Sekampung Sistem diperlukan suatu bentuk pola tanam yang dapat meningkatkan produksi tanaman padi dengan pertimbangan ketersediaan air yang ada. Dalam memilih alternatif pola tanam Padi – Padi – Palawija, dipilih tanaman palawija yang yang paling sedikit membutuhkan air, agar kebutuhan debit air dapat terpenuhi. Sistem pemberian air secara bergilir harus dilakukan sesuai jadwal agar tidak ada golongan yang berlebihan dan atau kekurangan dalam memenuhi kebutuhan debit air untuk setiap areal.
Perencanaan Embung Tejomartani Desa Branti Raya Natar, Lampung Selatan Aprizal APRIZAL
Jurnal Teknik Sipil Vol 6, No 1 (2015): April
Publisher : Universitas Bandar Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (888.369 KB) | DOI: 10.36448/jts.v6i1.906

Abstract

Pada musim penghujan sering terjadi banjir. Hal ini disebabkan meluapnya air sungai sebagai akibat kemampuan alur sungai lebih kecil dari debit yang harus dialirkan.    Kondisi hidrologis daerah pengaliran sungai mengalami perubahan (menjadi krisis).Perubahan terutama terjadi pada vegetasi yang tumbuh.Secara alami fungsi vegetasi yang tumbuh pada daerah aliran sungai adalah untuk menahan aliran limpasan permukaan yang kemudian secara perlahan meresapkan air tersebut ke dalam tanah.Perubahan vegetasi pada daerah aliran sungai ini mempengaruhi keseimbangan antara besarnya curah hujan dengan besarnya air yang meresap ke dalam tanah (menjadi lebih kecil) yang mengakibatkan aliran limpasan permukaan (surface run off) bertambah besar. Berdasarkan data-data pendukung dan analisa serta perhitungan yang dilakukan pada perencanaan Embung Tejomartani Desa Branti Raya - Natar Lampung Selatan dengan tujuan untuk mendapatkan dimensi bangunan embung yang memenuhi persyaratan teknis dan dapat digunakan untuk menunjang ketersedian air baku penduduk Desa Branti Raya pada musim kemarau, khususnya Dusun Tejomartani dan dusun lain disekitar embung, maka dapat disimpulkan tubuh embung dinyatakan aman.
Optimization Utilization of Water Resourcesdam Batutegi Usingmethod of Linear Program Aprizal Aprizal; Hery Fitriyansyah
International Conference on Engineering and Technology Development (ICETD) 2013: 2nd ICETD 2013
Publisher : Bandar Lampung University (UBL)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (296.393 KB)

Abstract

Water is the source of life and take on an important role in supporting human activities. Form of the problems faced in the utilization of water resources management in general is a problem right way so that at the optimum can result from existing resources. Efforts should be made to overcome these problems by taking into account the constraints faced, the negative impacts and completion is expected to be effective and efficient.Among the various alternatives, the research to optimize the utilization of the water dam Batutegi an option. Linear program is one form of optimization techniques. The objective function is to maximize the amount of water that can be supplied for irrigation. The problem is the availability of water in the dam Batutegi. Completion of this optimization problem using QM For Windows software.Efficiency optimization results are outflows of 2:05 m3/sec in the first growing season, 1:19 m3/sec in the second growing season and the addition of irrigated area of 1,100 ha in the first growing season, 512 ha in the second growing season.
Evaluation Calculation of Flood Design with Hydrograph Method Nakayasu, Limantara and Snyder in Catchhement River Way Tebu Yasril Yasril; Aprizal Aprizal; A Nurhasanah
International Conference on Engineering and Technology Development (ICETD) 2017: 4rd ICETD 2017
Publisher : Bandar Lampung University (UBL)

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Abstract

Synthetic unit hydrograph is a synthetic based hydrograph of watershed parameters. One way to find out the magnitude of the flood watershed of Way Tebu River Basin is to predict the amount of flow from existing rain data, Therefore rainfall data as the main input of rain diversion process becomes a very important thing and must have a high level of accuracy. The research presents a simple approach to determine peak discharge and unit hydrograph form in the Waytebu River Basin. Several methods of unit synthesis hydrograph such as Nakayasu, Limantara and Snyder are used to calculate peak discharge and hydrograph form. Flood discharge plans with various reworks in each method, providing mixed results. The greatest result is the Limantara HSS (Q25 = 1,413.13 m3 / sec) and the smallest HSS Snyder (Q25:814,57 m3 / s), while HSS Nakayasu (Q25 = 922.93 m3 / s). From the hydrograph comparative analysis of the three methods for Limantara method, the top time is happened at (Tp: 5.57) with top flow (Qp: 10,19 m3 / s), While Nakayasu method has the same top time at (Tp: 5,93 ) with top flow (Qp: 11.65 m3 / s) and Snyder method top time happened ad (Tc: 5.57) with top flow (Qp: 10.19 m3 / s)
Tsunami Evacuation Route Modeling (Study in Karang City and Karang Raya Village City) Sulaeman D; Nurhasanah A; Aprizal Aprizal
International Conference on Engineering and Technology Development (ICETD) 2017: 4rd ICETD 2017
Publisher : Bandar Lampung University (UBL)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (737.343 KB)

Abstract

Kota Karang Village and Kota Karang Raya Village are two urban villages located in the coastal city of Bandar Lampung and are vulnerable to tsunami threats. The tsunami threat comes from the possible subduction of the Indo Australia Plate and the Eurasian Plate as well as the volcanic activity of Mount Anak Krakatau. The two villages are inhabited by 16.726 people with a high density of 29.344 people per km2 and occupy an area of 0,57 km2 with an average height of 10 meters. The dense population and moderate contours left both villages potentially causing casualties in the event of a tsunami disaster. Therefore, a study on the optimization of the tsunami evacuation route in both urban villages is needed. The method used in this research is to conduct a review of the tsunami evacuation route through analysis of population data and topographic data which will then become evacuation simulation input using Evacuware software. The data included in the form of population data by sex and age and topographic data in the form of situation map and evacuation route map. The simulation is done with two scenarios, the first scenario uses two Temporary Evacuation Sites namely Mount Mastur and Dwipangga Park. The second scenario conducted by placing four additional vertical shelter using three reconstructed primary schools and one reconstructed community health center
Study of Hydrograf Synthetic Unit Method of Nakayasu, Limantara and Snyder on Way Semah B Kurnia; Aprizal Aprizal; A Nurhasanah
International Conference on Engineering and Technology Development (ICETD) 2017: 4rd ICETD 2017
Publisher : Bandar Lampung University (UBL)

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Abstract

Way Semah River is the longest river located in Pesawaran Regency. Way Semah Creek passes several villages such as Gedong Tataan, Kesugihan, Kagungan Ratu, Katon Country, Halangan Ratu, Negara Saka, and many other villages. The upstream area of the Way Way River is located on Mount Pesawaran, while the downstream of the Way Semah River goes to the river Way Sekampung. The purpose of this study is to find out the fluctuation picture of the rising and falling water flow in the Way Semah river, knowing the peak discharge and the length of flow time, in certain period. The purpose of this study is to analyze rainfall occurring in das way semah. know the fluctuation of the water flow with the hydrograph of nakayasu, Limantara, and Snyder methods, and comparH Limantara, strongly influenced by the slope of the river, the higher the elevation difference between the upstream and downstream of the river, the higher the Qp value, and the reverse is true, whereas for the Tp value is relatively the same
Synthetic Analysis of Hidrograf Units using the Method of HSS Nakayasu, Snyder And Limantara (Study in DAS Way Sulan) Haryadi Haryadi; Aprizal Aprizal; A Nurhasanah
International Conference on Engineering and Technology Development (ICETD) 2017: 4rd ICETD 2017
Publisher : Bandar Lampung University (UBL)

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Abstract

DAS Way Sulan located in East Lampung Regency of Lampung Province. DAS Way Sulan this was the area of review in the research of the preparation of this thesis. Flood-prone areas in the planning area includes the  rea of the estuary's Way Home, flood plains and alluvial plain especially along the Way Sulan. Factors cause flooding include the high rainfall, the closure of land upstream capacity and reduced flow of the rivers especially in areas of lower reduced due to sedimentation and topographic area. Flood hazards/safeguards for potential flooding in River Way Sulan can do planning safeguards against a flood with a building plan that aims to reduce the damage that occurs due to the flood levels most minimum. Building planning in the field of water resources can be done well if rainfall data at each station the rain can be known and calculated using the debitnya method of the HSS
Analysis of Flood Flow of Ketibung Catchment Area Using HSS Nakayasu, Limantara and Snyder Methods T A Saputra; Aprizal Aprizal; A Nurhasanah
International Conference on Engineering and Technology Development (ICETD) 2017: 4rd ICETD 2017
Publisher : Bandar Lampung University (UBL)

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Abstract

Ketibung catchement area administratively located at Southern Lampung and Eastern Lampung districts. Ketibung river upstream is Ketibung dam that administratively located at Talang Baru village Sidomulyo districts Eastern Lampung district. Ketibung river has a variatif wide from upstream to downstream, river’s wides at the upstream approximately ± 8,5 m, wides at the middle stream approximately ± 6,8 m and at the downstream approximately ± 7,2 m, with the catchement area extensive approximately 315 km2. At these areas hidrology data are not avaliable, to decrease unit hidrograf, synthetic hidrograf unit is made according to physical characteristic of Ketibung catchement area. Using HSS Nakayasu, Limantara and Snyder methods that will be used as flow at river infrastructures planning for the flood management. From these three methods, for the biggest design flood is using Snyder method (Q25 : 653,72 m³/second), for Limantara Method (Q25:416,45 m³/second) and Nakayasu ( Q25 : 519,40 m³/second). For HSS Limantara, the top time is happened at (TP:4,91) with top flow (Qp:7,813 m³/second), while HSS Nakayasu has the same top time at (TP:4,91) with top flow (Qp:11,5 m³/second) and HSS Snyder top time happened at (Tp;5,39) with top flow (Qp:10,80 m³/second)
Co-Authors A Nurhasanah A Nurhasanah Any Nurhasanah Arju Meris Arju Meris B Kurnia Fatwa Milania Pramadani Haryadi Haryadi Hery Fitriyansyah I Yuliansyah Ican Wahyu Januar Ilyas Sadad MF. Nur Yuniar Muhammad Imam Riady Mujiyanto Mujiyanto Nurhasana, Any Nurhasanah A Rahmat Rahmat Sulaeman D T A Saputra Wiby Febriando Edy yasril yasril