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Analisis Debit Puncak Rencana Serta Keseimbangan Air Irigasi Pada Daerah Aliran Sungai Ciwulan Hulu Kabupaten Tasikmalaya Saputra, M. Sandi Kurniawan; Permana, Sulwan
Jurnal Konstruksi Vol 16 No 2 (2019): Jurnal Konstruksi
Publisher : Sekolah Tinggi Teknologi Garut

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Abstract

Indonesia merupakan daerah yang beriklim tropis dimana pada musim penghujan mempunyai curah hujan yang relatif cukup tinggi, dan seringkali mengakibatkan terjadinya banjir. Perkembangan wilayah dan meningkatnya populasi penduduk memicu adanya aktivitas-aktivitas baru yang berpengaruh pada pola penggunaan air yang tersedia. Sungai Ciwulan merupakan salah satu sungai di Provinsi Jawa Barat yang berhulu di Gunung Cikuray dan Gunung Karacak di Kabupaten Garut yang memiliki panjang 114 km dan bermuara ke Samudera Indonesia di Kabupaten Tasikmalaya. Lokasi yang dijadikan objek penelitian ini yaitu bendung Biuk yang ada pada DAS Ciwulan hulu yang teletak di perbatasan Kabupaten Garut dan Kabupaten Tasikmalaya tepatnya di Kecamatan Salawu Kabupaten Tasikmalaya dengan luas DAS 31,69 km2 serta areal potesial sebesar 1140 ha. Dalam penelitian ini menggunakan satu data curah hujan dari stasiun curah hujan terdekat dengan periode 10 tahun dari tahun 2007 sampai dengan 2017. Hidrograf Satuan Sintesis yang digunakan yaitu HSS Nakayasu dan HSS Snyder. Dalam mencari besaran debit andalan menggunakan metode Fj Mock serta metode Thornthwaite untuk menganalisa evapotranspirasi (ET0). Dari hasil perhitungan debit puncak rencana pada aliran sungai Ciwulan hulu dengan metode HSS Nakayasu menghasilkan debit puncak rencana sebesar 104,7588 m3/det, sedangkan pada metode HSS Snyder debit puncak rencana yang dihasilkan sebesar 101,23 m3/det. Pada analisis ketersediaan dan kebutuhan air, persentase terpenuhi terbesar terjadi pada bulan Februari setengah bulanan pertama dengan persentase 419,82%. Namun pada bulan Agustus setengah bulanan kedua mengalami kekurangan air dengan persentasi terpenuhi hanya 20,45%.
Analisis Pengaruh Adanya Pembangkit Listrik Tenaga Mikro Hidro Terhadap Kebutuhan Irigasi Jatiwangi Kabupaten Garut Suhendi; Permana, Sulwan; Susetyaningsih, Adi
Jurnal Konstruksi Vol 17 No 2 (2019): Jurnal Konstruksi
Publisher : Sekolah Tinggi Teknologi Garut

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Abstract

Abstrak - Air merupakan sumber daya alam yang sangat berpengaruh bagi berlangsungnya kehidupan mahluk hidup. Salah-satu pemanfaatan air adalah sebagai sumber energi Pembangkit Listrik Tenaga Mikro Hidro (PLTMH). Dengan adanya bangunan PLTMH, akan mempengaruhi ketersediaan debit air di sungai Cikandang bagi kebutuhan lahan pertanian. wilayah lahan pertanian yang terpengaruhi PLTMH berada diantara pintu pengambilan air sampai Power house. Hal ini perlu adanya imbangan neraca air antara ketersediaan debit air sungai Cikandang, kebutuhan debit air PLTMH dan kebutuhan debit air lahan pertanian. Dalam penelitian menganalisis imbangan neraca air antara ketersediaan dan kebutuhan, digunakan data curah hujan dari 2 stasion yaitu stasion Cirompang dan Pamegatan serta data klimatologi Garut dari stasion Legok Pulus. Dengan metode Mock untuk pengolahan data yang menghasilkan data debit andalan ketersediaan dan perhitungan kebutuhan debit irigasi dengan mengambil skema pola tanam sebagai acuan kebutuhan debit air. Dari hasil analisis didapat debit andalan setengah bulanan sungai Cikandang dengan rata-rata sebesar 25,86 m³/det, Kebutuhan debit air terkecil untuk lahan pertanian adalah 0,051 m³/det dan terbesar adalah 1,616 m³/det, dengan kebutuhan PLTMH sebesar 16 m³/det. Disimpulkan bahwa dengan adanya PLTMH, kebutuhan air bagi lahan pertanian tidak terpenuhi. Perlu adanya peninjauan kembali dalam pengelolaan air bagi kebutuhan PLTMH Cikandang 1.
Analisis Kebutuhan Air di Daerah Irigasi Leuwigoong Kabupaten Garut Pratama, Aditya Ramdhani; Permana, Sulwan
Jurnal Konstruksi Vol 17 No 1 (2019): Jurnal Konstruksi
Publisher : Sekolah Tinggi Teknologi Garut

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Abstract

Sungai merupakan tempat berkumpulnya air yang mengalir menuju tempat yang lebih rendah, keberadaan aliran sungai tentunya berguna untuk pemanfaatan kepentingan manusia karena air merupakan kebutuhan utama dalam kehidupan manusia contohnya untuk pertanian. Maka perlu adanya usaha pengendalian pemanfaatan air untuk memaksimalkan secara optimal ketersediaan air dan kebutuhan air dengan cara irigasi dan pembangunan bendung yang berguna untuk menaikan tinggi muka air sungai sehingga debit air bisa masuk ke saluran irigasi. Penelitian ini untuk mengetahui kondisi surplus dan defisit air dari hasil neraca air. Lokasi penelitian di Bendung Copong Garut untuk irigasi Daerah Irigasi Leuwigoong dengan areal seluas 5.313 ha debit andalan sungai sebesar 33.34 m3/det dengan menggunakan metode FJ Mock, evapotranspirasi terbesar pada bulan September 5,09 mm/hari dengan menggunakan metode Penman Modifikasi. Pola tanam menggunakan Padi-Padi-Palawija dengan kebutuhan air bersih disawah sebesar 0,451 l/det/ha, debit di pintu pemngambilan air sebesar 9,30 m3/det dan kebutuhan air selama penyiapan lahan menggunakan metode Van de Goor dan Zijlstra (1968). Hasil penelitian ini menunjukan kondisi neraca air ketersediaan air di Bendung Copong dan kebutuhan air di Daerah Irigasi Leuwigoong pada bulan September mengalami defisit air dengan kebutuhan air sebesar 6,59 m3/det dan ketersediaan air sebesar 5,59 m3/det.
Analisis Potensi Air Tanah di Desa Karang Layung Kecamatan Karangjaya Kabupaten Tasikmalaya Untuk Kebutuhan Air Baku Ramdani, Junaedi; Permana, Sulwan; Susetyaningsih, Adi
Jurnal Konstruksi Vol 17 No 1 (2019): Jurnal Konstruksi
Publisher : Sekolah Tinggi Teknologi Garut

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Abstract

Air tanah adalah air yang berada di bawah permukaan tanah yang mempunyai rongga kejenuhan tanah. Akuifer ialah batuan yang mempunyai muka air tanah dalam tanah. Air merupakan bagian dari sumber daya alam yang digunakan oleh manusia. Kualitas yang baik menjadi salah satu faktor tingginya minat manusia menjadikan air tanah sebagai salah satu sumber air bersih. Penelitian potensi air tanah di Desa Karang Layung haruslah dilakukan supaya aktifitas dan kebutuhan hidup masyarakat di daerah tersebut bisa terpenuhi. Penelitian ini bertujuan untuk mengetahui keadaan air tanah dengan metode yang digunakan ialah metode geolistrik konfigurasi schlumberger. Pengukuran dilakukan dengan alat resistivity meter merk NANIURA. pengukuran untuk masing-masing konfigurasi bergantung pada variasi resistivitas terhadap kedalaman yaitu pada arah vertikal (sounding) atau arah lateral (mapping), sehingga dalam analisa hidrogeologi dalam kegiatan ini untuk mendapatkan eksploitasi debit air tanah/ akuifer maksimal untuk pemanfaatan air tanah untuk kebutuhan air baku. Adapun batuan yang berpostensi sebagai pembawa air tanah adalah batu pasir dan breksi yang berada di pengukuran titik 14 terdapat batuan pembawa air dengan ketebalan 19.1 meter di kedalaman 14.5-33.6 meter. Debit yang dihasilkan dari pengeboran sebesar 1 liter/detik. Kebutuhan air bersih dengan proyeksi jumlah penduduk 10 tahun yang akan datang sebesar 4411 jiwa di tahun 2028 sebesar 3.036 ltr/detik. Dilihat dari ketersediaan air yang ada dengan kebutuhan hanya mencukupi kebutuhan sebesar 30.2 %.
INOVASI LITERASI DIGITAL PENDEKATAN BARU DALAM KEGIATAN PENGABDIAN UNTUK MERESPONS TANTANGAN DIGITAL Permana, Sulwan; Muhammad Ali Faishal; Muhammad Ridho; Moch. Galdiaz Nugraha Prawira; Nurcinta Asih; Muthia Mutmainah Aprinelia; Fahril Sidik Alfarizi; M.Miskun Arrihussalam; Ryan Ardiansyah; Rizki Anugrah Munawar; Sifa Nur Maisah; Dadang Permana; Sandi Dzulfikar; Rahma Rohimah Hinaffisah; Nazwa Tiara Herdiani; Ahmad Tavip Baiturahman; Rohimat; Anzilal Fauji; Muhammad Suryadindin; Lindawati
Jurnal PkM MIFTEK Vol 4 No 2 (2023): Jurnal PkM MIFTEK
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/miftek/v.4-2.1476

Abstract

In an increasingly digitally connected era, digital literacy is an essential key skill for participating in an increasingly connected global society. Limitations in digital literacy can result in inequalities in access to information and opportunities, isolating some communities from the benefits offered by the digital world. Salakuray Village, like many other villages, faces challenges in keeping up with rapid changes in digital technology. The aim of this activity is to introduce an innovative approach to digital literacy implemented in Salakuray Village. This activity uses the door to door method and digital literacy seminars to provide the public with an understanding of digital literacy. The results show increased participation, especially of women, in the digital world. In addition, digitally literate people are starting to become active online, with some even starting their own online businesses. This service activity highlights the importance of continuing to encourage digital literacy efforts at the local level and provides valuable insight into how innovations in digital literacy can be implemented in various communities around the world.
Analisis Pengaruh Tata Guna Lahan terhadap Efektivitas Daerah Irigasi Cipalebuh Gunawar, Agun; Permana, Sulwan
Jurnal Konstruksi Vol 21 No 2 (2023): Jurnal Konstruksi
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/konstruksi/v.21-2.1329

Abstract

Cipaleubuh Irrigation gets water from the Cipaleubuh River for the needs of rice fields and plantations in Pameungpeuk. To determine water availability and effectiveness of irrigation channels. This research was conducted to determine the Cipaleubuh Bend River Discharge and Irrigation Discharge by taking into account current conditions. The research location is Cipaleubuh Dam to Cipaleubuh Irrigation with an area of ​​1016 ha. The largest river discharge is 5.66 m3/second using the FJ Mock Method, evapotranspiration calculations using 10 years of climatology data and 10 years of rainfall data using the Penman Monteith Method. The Cipalebuh irrigation area with an area of ​​1,016 hectares requires water withdrawals, water availability is still sufficient from January to June, and scarce from July to October, but water availability is low at the end of the year. reduced capacity. Enough for November and December. Based on the analysis results, the maximum river discharge was 5.66 m3/s in March. A water intake of 1.65 l/sec/ha at the key requires a required water volume of 1016x1.65 = 1676.4 l/sec. Cipaleubuh land use is divided into river areas, plantation areas, gardens, irrigated rice fields, bushes and agricultural land. Fertile land contributes 30.880% compared to 2.017% for river water. However, water needs can be met with DI. Effective Cipaleubuh.
Analisis Kolam Olak Bendungan Leuwikeris Kabupaten Ciamis-Tasikmalaya Komalasari, Amelia Citra Mulya; Permana, Sulwan
Jurnal Konstruksi Vol 22 No 1 (2024): Jurnal Konstruksi
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/konstruksi/v.22-1.1346

Abstract

The Leuwikeris Dam is a dam built in two districts, namely Ciamis Regency and Tasikmalaya Regency. One of the structures of the dam is a stilling pond. Stilling ponds are built to reduce the energy contained in the flow by utilizing hydraulic jumps from a high-speed flow. The type of stilling pond at the Leuwikeris Dam is type USBR II which has a Froude number value of more than 4.5 and a discharge of more than 60m³/second. The research carried out this time calculated the amount of energy loss in the stilling pond of the Leuwikeris Dam with the USBR II stilling pond type. In finding the value of energy loss, the discharge of the Leuwikeris Dam is needed using modeling. Discharge modeling uses the NRECA method by calibrating with existing discharge, namely the discharge in Cirahong. Discharge modeling is also used with normal distribution method calculations, log normal, gumbel and log pearson type III. The results of these calculations are an NSE value of 0.756 in modeling discharge using the NRECA method and calibrated with the Cirahong discharge for 5 years and the amount of energy lost in the stilling pond of 4.78 meters.
Perencanaan Sistem Penyediaan Air Bersih Mukti Desa Tenjowaringin Kabupaten Tasikmalaya Kusumah, Desty Rahmawati; Permana, Sulwan; Hantari, Anjas Ninda
Jurnal Konstruksi Vol 21 No 2 (2023): Jurnal Konstruksi
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/konstruksi/v.21-2.1400

Abstract

Clean water is the main source for society. However, not all areas have sufficient availability of clean water, for example Pangkalan Village and Pasir Mukti Village which are located in Tenjowaringin Village. In this research, planning for the availability of clean water was carried out for the people of Pangkalan village and Pasir Mukti village. The spring used in the planning was the Cipeuti spring, the water source of which had not been utilized at all. The method used to determine the amount of discharge is the volumethic method by collecting spring water, then the water is raised to the distribution reservoir using a pump, then the water is distributed using a gravity system. However, the method that will later be used for distribution of clean water is planned using the help of Epanet 2.2 software. The results of the analysis of water needs until the 2033 plan year showed that the population was 474 people using the geometric method, for a water discharge of 13,140 lt/day (0.16 lt/sec) with Cipeuti water availability until 2033, namely 0.17 lt/sec. The results of the calculations show that the availability of clean water in Cipeuti can meet the water needs of the people of Pangkalan village and Pasir Mukti village. For the dimensions of the reservoir used, namely 2.5 m x 2.5 m x 3 m and the dimensions of the planned reservoir are 2.5 m x 2.5 m x 3.5 m, the type of pipe used is HDPE pipe, where the value of the pipe coefficient uses Hazen Williams values ​​which will later be applied in the Epanet 2.2 application for pipe distribution.
Evaluasi Ketersediaan Air Baku pada Bendung Gunungcupu Yulianti, Jihan; Permana, Sulwan; Nugraha, Mochammad Suva
Jurnal Konstruksi Vol 21 No 2 (2023): Jurnal Konstruksi
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/konstruksi/v.21-2.1403

Abstract

The availability of water at Gunungcupu Dam is very much needed to support various community activities in the service area. One of the causes of the reduced supply of clean water is damage to pipes due to natural disasters, such as what happened in 2022, there was a flash flood that overflowed the Citanduy River located in the Gunungcupu Bend area and caused the main raw water transmission pipe belonging to PDAM Tirta Galuh Ciamis to reach the Gunungcupu Intake. cut off for 100 meters, as a result the water supply in the Gunugcupu Dam service area was disrupted. So this research was carried out to determine the availability of raw water, find out the projected need for clean water in 2042, and find out the planned flood discharge at Gunungcupu Dam. The method used is a quantitative approach. To determine the availability of raw water, you need to process actual discharge data using the Weibull equation, calculate population projections using arithmetic and geometric methods, calculate clean water requirements for domestic needs in 2042, and process rainfall data to analyze the planned maximum discharge using the Unit Hydrograph method. Nakayasu Synthetic and Gama I Synthetic Unit Hydrograph. The calculation results show that water availability at the Gunungcupu Dam is 730 liters/second. The need for clean water in 2042 for the three sub-districts is 302.66 liters/second. Based on these results, the water supply from Gunungcupu Dam can meet the clean water needs for Ciamis, Baregbeg, and Cijeungjing Districts in 2042. Then the flood discharge planned by the Nakayasu HSS method for Gumbel probability at Q100 is 930,484 m3/second and for Log Normal probability at Q100 amounting to 786,302 m3/second, while the planned flood discharge for the HSS Gama I method for Gumbel probability in Q100 is 833,381 m3/second and for Log Normal probability in Q100 is 707,002 m3/second. Based on these results, it can be concluded that the largest maximum discharge is the HSS Nakayasu method for Gumbel probability, so the HSS Nakayasu method is good for planning the safety of water structures against flooding.
Perencanaan Distribusi Air Sumur Bor Desa Cibunar Kecamatan Cibatu Rosidin, Ahmad; Permana, Sulwan
Jurnal Konstruksi Vol 22 No 1 (2024): Jurnal Konstruksi
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/konstruksi/v.22-1.1404

Abstract

Clean water plays a very important role in everyday life. However, the dry season causes a water crisis in several areas of Garut Regency, one of which is Cibunar Village, Cibatu District. The aim of this research is to plan drinking water discharge needs, storage tank capacity and water distribution planning by maximizing the potential of drilled well water as a source of raw water. There is a need for distribution engineering with PVC pipe networks and combined drainage systems. In planning this network, population projections use the geometric method for the 2023-2042 plan year with a population at the end of the plan year of 11,191 people, the total water requirement per person is 60 liters/person/day. The total domestic water requirement for one village is 671,460 liters/person/day or 7.77 liters/second at the end of the 2042 projected plan year. The complete data was then analyzed using the EPANET 2.2 application, the results of the analysis obtained the average pressure 25.23 m, average head loss 0.56 km/m and average flow speed 0.18 m/s and from the results of this analysis the ideal diameter of the distribution pipe is 100-200 mm. Meanwhile, the results of running with the peak hour scenario obtained a flow of 879 liters/hour. In planning the pump specifications required a total head of 159.34 m and a power of 45.41 Kw with pump type CR 120-5-1. Cibunar Village distribution network planning at the end of the planning year can meet community needs during the planning period.
Co-Authors AA Sudharmawan, AA Adi Susetyaningsih Ahmad Tavip Baiturahman Al-Husein, Fajar Aminah, Siti Nur ANANTA, ASTI Andriani, Ai Dini Anzilal Fauji Aprilianti, Mega Arif, Zaenal Dadang Permana Eko Walujodjati Fahril Sidik Alfarizi Fardiansyah, Bagas Farhani, Siti Aulia Fatah, Muhamad Abdu Fathir, Mirza Firdausa, Muhamad Arga Firzatullah, Belva Prana Giandhani, Mochammad Rizky Gunawar, Agun Hadi, Muhamad Rizal Nurul Hantari, Anjas Ninda Hilmayanti, Hilmayanti Ibrahim, Galih Imamudin Imamudin Jamami, Yadziz Siddik Al Khaerunisa, Nisrina Komalasari, Amelia Citra Mulya Kristiawan, Diky Kusumah, Desty Rahmawati LINDAWATI M.Miskun Arrihussalam Maelani, Rega Maulana, Mochamad Dilla Maulina, Wina Senja Moch. Galdiaz Nugraha Prawira Mubarok, Abil Miftahul Muhammad Ali Faishal Muhammad Ridho Muhammad Suryadindin Muhammad, Faiz Mahatir Muharam, Muhammad Faisal Munawar, Arby Muhyi Muthia Mutmainah Aprinelia Nazwa Tiara Herdiani Nugraha, Mochammad Suva Nurahman, Zamzam Nurcinta Asih Nurfauziah, Hanifah Nurlatifah, Sarah Pratama, Aditya Ramdhani Purnama, Alpin Putri, Icha Aulia Rahma Rohimah Hinaffisah Ramadhan, M. Zilhan Salman Ramdani, Junaedi Ramdhani, Tio Rizki Anugrah Munawar Rizky, Muhammad Naufal Rohimat Rohman, Asep Abdul Rosidin, Ahmad Ruspa, Rena Ryan Ardiansyah Sandi Dzulfikar Saputra, M. Sandi Kurniawan Sastradipraja, R Muhammad Arya Fajar Saumi, Ira Nurachma Sifa Nur Maisah Siti Rohmah Suhendi Sukma, Ersa Hermalia Sulastri, Dewi Suparman, Tegar Radiansyah Yulianti, Jihan Zaman, Muhammad Badru