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Studi Penentuan Nilai Curve Number DAS Pataruman berdasarkan Satuan Peta Tanah Indonesia Ramadan, Anri Noor Annisa; Nurmayadi, Dicky; Sadili, Anwar; Solihin, Rega Rizaldy; Sumardi, Zefri
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 26, Nomor 2, DESEMBER 2020
Publisher : Department of Civil Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (53.205 KB) | DOI: 10.14710/mkts.v26i2.26563

Abstract

Model curah hujan-limpasan umumnya digunakan dalam perhitungan debit banjir. Salah satu metode yang paling sering digunakan untuk memperkirakan debit banjir di DAS adalah NRCS-CN. Penelitian ini ditujukan untuk menentukan nilai CN dengan/tanpa kapasitas drainase tanah dari informasi tanah di SPT Indonesia. Lokasi yang digunakan adalah DAS Pataruman dengan mengkalibrasi hasil debit simulasi dengan debit pengamatan. Kondisi tanah di DAS Pataruman menunjukan bahwa tekstur tanah memiliki tekstur halus (HSG D), tekstur agak halus (HSG C), dan tekstur agak kasar (HSG A). Nilai CN komposit rata-rata di DAS Pataruman tanpa kapasitas drainase tanah adalah 85,58 sedangkan dengan kapasitas drainase tanah adalah 81,01. Hasil dari analisis menunjukan bahwa dengan/tanpa memperhitungkan kapasitas drainase tanah di DAS Pataruman tidak menunjukan perbedaan debit yang signifikan dengan koefisien relasi 0,734 (tanpa kapasitas drainase tanah) dan 0,732 (dengan kapasitas drainase tanah). Perhitungan CN dengan/tanpa kapasitas drainase tanah direkomendasikan untuk DAS kecil.
Penentuan hydrologic soil group untuk perhitungan debit banjir Di Daerah Aliran Sungai Brantas Hulu Anri Noor Annisa Ramadan; Wanny K Adidarma; Bambang Adi Riyanto; Kamsiyah Windianita
JURNAL SUMBER DAYA AIR Vol 13, No 2 (2017)
Publisher : Bina Teknik Sumber Daya Air, Kementerian Pekerjaan Umum dan Perumahan Rakyat

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2177.82 KB) | DOI: 10.32679/jsda.v13i2.205

Abstract

Dams are planned and built to be used for water resources activities. Besides the benefits, there were a great danger if the inability of the dam structure to holding the flood is available. The choice of the right method for the magnitude of the plan flood is part of the dam security. Problems that occurred in Indonesia former record data from AWLR is not available. One method of losses flood modeling is NRCS-CN. Moreover, this method can be used for areas without flood hydrograph or reservoir water leveldata, however rainfall record data is available. In CN's determination, Indonesia does not have a HSG (Hydrologic Soil Group) map that needs to be made from another soil map like HWSD. The research was conducted using CN method using land map (HWSD), land use (BAPPEDA). Losses were carried out with HEC-HMS model. The study was conducted in the Upper Brantas basin withSutai Dam outlet. The simulation was done by calibrating the water level. HSG groups obtained from HWSD maps in Upper Brantas basin are A (loamy sand), B (loam), and D (clay). Determination of HSG from HWSD soil map with NRCS-CN loss method and NRCS UH resulted the best calibration of AMC II and ? = 0.2 in March 2007 (RMSE = 0,55) and AMC II and ? = 0.05 December 2007 (RMSE = 0.65).
Pemanfaatan Lubang Resapan Biopori di RW 03 Kelurahan Sambongjaya Kecamatan Mangkubumi Kota Tasikmalaya Anri Noor Annisa Ramadan; Agi Rivi Hendardi
Jurnal Pengabdian kepada Masyarakat (Indonesian Journal of Community Engagement) Vol 6, No 4 (2020): Desember
Publisher : Direktorat Pengabdian kepada Masyarakat Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1359.796 KB) | DOI: 10.22146/jpkm.54253

Abstract

Bencana kekeringan merupakan salah satu bencana yang dampak besar terhadap ketahanan pangan. Tasikmalaya merupakan daerah berkembang dan rawan terhadap kekeringan. Masyarakat mempunyai hak untuk memperoleh dan memanfaatkan air tanah serta berpartisipasi dan berperan aktif dalam pelaksanaan konservasi air tanah. Tujuan pengabdian masyarakat ini adalah untuk mendukung konservasi air tanah dengan pemanfaatan lubang resapan biopori (LRB) dapat membantu mengendalikan limpasan dan mengurangi sampah organik di RW 03 Perumahan Winayajaya, Kelurahan Sambongjaya, Kecamatan Mangkubumi, Kota Tasikmalaya. Pemanfaatan LRB dilakukan dengan membuat LRB yang disebar secara merata. Rumah yang direncanakan akan dipasangi LRB berjumlah 20. Masyarakat ada yang mendukung dan ada yang tidak menanggapi pemasangan LRB ini. Tiga orang pemilik rumah menolak untuk memasang LRB. Lima rumah memiliki tanah dengan batu besar sehingga mempersulit pemasangan LRB. Pada akhirnya, LRB berhasil dipasang di 15 rumah dari 20 rumah yang direncanakan dan tersebar di semua RT yang termasuk RW 03. Kesadaran masyarakat RW 03 terkait dengan konservasi tanah belum terlihat sepenuhnya. Hal tersebut terlihat dari mayoritas rumah yang tidak memiliki pekarangan serta tingkat keinginan warga untuk ikut serta dalam pemanfaatan LRB.
GIS-Based Landslide Disaster Risk Areas and Ground Movements Mapping to Support Disaster Mitigation Activities (Case Study: Tasikmalaya Regency) Novi Asniar; Anri Noor Annisa Ramadan; Aso Sudiarjo
Journal of Community Practice and Social Welfare Vol. 1 No. 2 (2021): Journal of Community Practice and Social Welfare
Publisher : LPPM Universitas Ma Chung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33479/jacips.2021.1.2.40-53

Abstract

Tasikmalaya Regency is an area that is prone to landslides and ground movements. The availability of comprehensive and accurate information in controlling land use for regional development in areas prone to landslides and ground movements is very important for casualty prevention and other losses such as physical, social and economic. This information must be disseminated to the public as an early warning system to support disaster mitigation efforts. Identification of the characteristics of landslide and ground movement prone areas requires the mapping of risk areas to mitigate disasters. This can be done using Geographic Information System (GIS). This mapping activity was carried out using the method of collecting digital data from five vulnerability controlling factors of landslides and ground movements, namely rainfall, rock type, soil type, land cover and slope. The analysis is continued by weighting the factors that influence landslides and ground motion and then overlaying the five controlling factor maps (with their respective weight values) to produce a landslides and ground movement vulnerability level map which is then inputted into WebGIS. This map can then be used by local governments and the public as an information medium to support disaster mitigation activities.
EVALUASI PENENTUAN DEBIT BANJIR RENCANA DI DAERAH TANGKAPAN AIR BENDUNG MANGANTI DENGAN METODE HIDROGRAF SATUAN SINTETIS LIMANTARA Yasir Muhamad Ridsan; Anri Noor Annisa Ramadan; Agi Rivi Hendardi
JITSi : Jurnal Ilmiah Teknik Sipil Vol. 2 No. 2 (2022): JUNI 2022
Publisher : Universitas Perjuangan Tasikmalaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (565.416 KB) | DOI: 10.36423/jitsi.v2i2.781

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Abstract— The problem of flooding around the river can cause disasters and losses for the community around the river. To reduce the risk of damage due to flooding, flood control efforts are needed. Planning for flood control in a watershed can be carried out properly if the planned flood discharge is known. The purpose of this study was to compare the planned flood discharge of the Q100 Hydrograph of the Limantara Synthetic Unit with the planned flood discharge of the Q100 planning of the Manganti Weir. The method of data processing and analysis used in this study is the analysis of the planned flood discharge using the calculation of effective rainfall and the calculation of the peak discharge with the Limantara Synthetic Unit Hydrograph. Data analysis includes the calculation of effective rainfall and flood discharge plans for 2 years, 5 years, 10 years, 25 years, 50 years, and 100 years. The results of the analysis show that the Q100 of the Limantara Synthetic Unit Hydrograph is 1223.44 m3/s, while the Q100 of the Manganti Weir is 1750 m3/s, there is a difference of 526.56 m3/s or 30.1%. The results of the analysis can be used as input for related agencies as an evaluation of the safety of the Manganti Dam. Keywords — Effective Rainfall, Planned Flood Discharge, Limantara Synthetic Unit Hydrograph. Abstrak— Permasalahan banjir disekitar sungai bisa menimbulkan bencana dan kerugian bagi masyarakat disekitar sungai tersebut. Untuk mengurangi resiko terjadinya kerusakan akibat banjir dibutuhkan upaya pengendalian banjir. Perencanaan pengendalian banjir di suatu Daerah Aliran Sungai dapat dilakukan dengan baik apabila debit banjir rencana diketahui. Tujuan penelitian ini adalah untuk membandingkan debit banjir rencana Q100 Hidrograf Satuan Sintetis Limantara dengan debit banjir rencana Q100 perencanaan Bendung Manganti. Metode dalam pengolahan data dan analisis yang digunakan dalam penelitian ini adalah analisis debit banjir rencana menggunakan perhitungan curah hujan efektif dan perhitungan debit puncak dengan Hidrograf Satuan Sintetis Limantara. Analisis data meliputi perhitungan curah hujan efektif dan debit banjir rencana kala ulang 2 tahun, 5 tahun, 10 tahun, 25 tahun, 50 tahun, dan 100 tahun. Hasil analisis menunjukan Q100 Hidrograf Satuan Sintetis Limantara sebesar 1223,44 m3/s, sedangkan Q100 perencanaan Bendung Manganti sebesar 1750 m3/s, terdapat perbedaan sebesar 526,56 m3/s atau 30,1%. Hasil analisis tersebut bisa dijadikan bahan masukan untuk instansi terkait sebagai evaluasi keamanan Bendung Manganti. Kata kunci — Curah Hujan Efektif, Debit Banjir Rencana, Hidrograf Satuan Sintetis Limantara.
STUDI ANALISIS KEBUTUHAN DAN KETERSEDIAAN AIR BERSIH UNIT PDAM TIRTA SUKAPURA TASIKMALAYA Fuji Arianto; Anri Noor Annisa Ramadan; Agi Rivi Hendardi
JITSi : Jurnal Ilmiah Teknik Sipil Vol. 2 No. 2 (2022): JUNI 2022
Publisher : Universitas Perjuangan Tasikmalaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (502.232 KB) | DOI: 10.36423/jitsi.v2i2.1004

Abstract

Abstract— Along with the increasing population, the need for clean water also tends to increase. Population growth will trigger an increase in several sectors such as needs in the irrigation sector, daily life, and other needs. Therefore, the need for clean water must be predicted and planned for the best possible use so that its continuity is maintained and fulfilled. The purpose of this study was to analyze the need for clean water and the availability of clean water from the PDAM Tirta Sukapura Kawalu unit, Tasikmalaya Regency. The method used in this research is the exponential method, namely by projecting the population and water needs for the next 10 years. From the analysis, it was found that the projection of clean water demand until 2029 was 492.19 l / second (customers) and 1.249.17 l / sec (total population). The current availability of clean water is only sufficient for the needs of 2020-2023 (customers), while based on the population from 2020 it is insufficient. Keywords - Clean Water, Clean Water Needs, PDAM Tirta Sukapura.   Abstrak— Seiring dengan bertambahnya jumlah penduduk, kebutuhan air bersih juga cenderung meningkat. Pertumbuhan penduduk akan memicu peningkatan dibeberapa sector seperti kebutuhan dalam sektor irigasi, kehidupan sehari-hari, serta kebutuhan lainnya. oleh karena itu, kebutuhan air bersih harus diprediksi dan direncanakan pemanfaatannya sebaik mungkin agar kelangsungannya tetap terjaga dan tercukupi. Tujuan penelitian ini menganalisis kebutuhan air bersih dan ketersediaan air bersih unit PDAM Tirta Sukapura Kawalu Kabupaten Tasikmalaya. Metode yang digunakan pada penelitian ini adalah Metode Eksponensial yaitu dengan memproyeksikan jumlah penduduk serta kebutuhan air untuk jangka waktu 10 tahun mendatang. Dari hasil analisis didapatkan proyeksi kebutuhan air bersih hingga tahun 2029 sebesar 492,19 lt/detik (pelanggan) dan 1,249,17 lt/detik (jumlah penduduk). Ketersediaan air bersih saat ini hanya mencukupi kebutuhan dari tahun 2020-2023 (pelanggan) sedangkan berdasarkan jumlah penduduk dari tahun 2020 tidak mencukupi.   Kata kunci — Air Bersih, Kebutuhan Air Bersih, PDAM Tirta Sukapura.
Analisis Sistem Drainase RSUD Dr. Soekardjo Kota Tasikmalaya Tantoh, Michael; Ramadan, Anri Noor Annisa; Hendardi, Agi Rivi
Akselerasi : Jurnal Ilmiah Teknik Sipil Vol 5, No 2 (2024): Januari
Publisher : Universitas Siliwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37058/aks.v5i2.10205

Abstract

In 2022, Dr. Soekardjo Regional General Hospital in Tasikmalaya faced a serious challenge with its drainage system. Due to heavy rain, a 50 cm water puddle on the first floor posed a threat to patient safety and disrupted hospital operations. This research aimed to evaluate the capacity and effectiveness of the drainage system, ensuring its ability to handle water flow and prevent flooding and flood risks during rainfall. The research methods included rainfall analysis, flow modeling, and existing flow analysis involving 47 drainage channels of various shapes in Dr. Soekardjo Regional General Hospital. The identification results showed an average channel length of 27.41 m, width of 0.5 m, and height of 0.24 m. The flow rate of Dr. Soekardjo Regional General Hospital was 0.261 m3/s, the Citanduy River tributary flow was 0.093 m3/s, and the total flow was 0.354 m3/s. The analysis indicated that the existing channels were unable to accommodate both flow rates, resulting in backwater. To address the drainage issue, improvements to the channels, addition of infiltration wells, and creation of biopore infiltration holes are planned. Additionally, an aquifer will be established as an additional water reservoir, and the Citanduy River channel will be widened to optimize flow. It is hoped that these measures will reduce the risk of waterlogging and flooding, ensuring patient safety during the rainy season.
Analisis Kebutuhan Air Baku Masyarakat Kecamatan Singaparna Dengan Adanya Sistem Pengembangan Air Minum Instalasi Kota Kecamatan Sukarame Ahmad Kuhunuz; Anri Noor Annisa Ramadan; Dicky Nurmayadi
JURNAL RISET RUMPUN ILMU TEKNIK Vol. 3 No. 1 (2024): April : Jurnal Riset Rumpun Ilmu Teknik
Publisher : Pusat riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jurritek.v3i1.2595

Abstract

The availability of raw water is very important, both for daily needs and irrigation so that its continuity is sufficient and maintained, water needs must be planned and its use predicted. This research aims to analyze the need for Raw water in the IKK Sukarame SPAM unit for Singaparna District from 2023 to 2027 and analyze the conditions of whether the IKK Sukarame SPAM reservoir planning unit system can meet the existing water needs in Singaparna District. The method in this research is to check the availability of water from SPAM IKK Sukarame and then compare it with the water needs of Singaparna District. From the results of projection calculations based on the analysis of the maximum Raw water demand for 5 villages in Singaparna District in 2027, it is around 523,299 l/s, with an estimated need for a reservoir or storage tank of around 45,213 m³. The availability of storage tanks is around 500 m³ and cannot meet the needs of the 5 villages in Singaparna District.