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All Journal Jurnal Teknik Sipil Jurnal Teknik Sipil dan Perencanaan IJOG : Indonesian Journal on Geoscience Jurnal Konstruksia Semesta Teknika Emerging Science Journal Civil Engineering Dimension Civil Engineering Journal Martabe : Jurnal Pengabdian Kepada Masyarakat Media Ilmiah Teknik Sipil PengabdianMu: Jurnal Ilmiah Pengabdian kepada Masyarakat EDUKATIF : JURNAL ILMU PENDIDIKAN TAPAK (Teknologi Aplikasi Konstruksi) : Jurnal Program Studi Teknik Sipil JURNAL TEKNIK HIDRAULIK Akselerasi Jurnal Ilmiah Teknik Sipil Universitas Muhammadiyah Yogyakarta Undergraduate Conference Proceeding Prosiding Seminar Nasional Program Pengabdian Masyarakat Jurnal Konstruksi Jurnal Teknik Sumber Daya Air Sambulugana
Jazaul Ikhsan
Department Of Civil Engineering, Universitas Muhammadiyah Yogyakarta, Yogyakarta,
Religion Agriculture, Biological Sciences & Forestry Arts Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Engineering Environmental Science Immunology & microbiology Law, Crime, Criminology & Criminal Justice Mathematics Mechanical Engineering Medicine & Pharmacology Public Health Social Sciences Transportation

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Prediksi Dampak Endapan Sedimen Hasil Erupsi 2023 terhadap Karakteristik Banjir Lahar di Kali Krasak Menggunakan SIMILAR Rohman, Fahrul; Ikhsan, Jazaul; Hairani, Ani
Konstruksia Vol 15, No 2 (2024): Jurnal Konstruksia Vol 15 No. 2 Tahun 2024
Publisher : Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/jk.15.2.39-48

Abstract

Gunung Merapi merupakan salah satu gunung api di Indonesia yang masih aktif. Pada tahun 2023 Gunung Merapi mengalami erupsi, daerah yang terdampak diantaranya DAS Krasak. Erupsi gunung api merupakan fenomena alam yang dapat menimbulkan bahaya. Salah satu akibat dari erupsi gunung api adalah banjir lahar. Banjir lahar dapat menyebabkan kerusakan dan timbulnya korban jiwa. Salah satu upaya untuk mengurangi angka korban jiwa dan kerugian material yaitu dengan prediksi. Penelitian ini mengunakan aplikasi SIMLAR V2.1 yang didasarkan pada teori Ashida, Takashi dan Mizuyama  menggunakan hidrograf sintetis Nakayasu. Pengujian dilakukan dengan membandingkan hasil simulasi tanpa bangunan sabo dan simulai dengan bangunan sabo. Dari hasil pengujian didapatkan kecepatan, luasan banjir, volume, dan nilai agradasi dan degradasi. Nilai luas sebaran pada simulasi tanpa bangunan sabo didapatkan pada curah hujan 58,1 mm sebesar 2,16 km2, curah hujan 87,15 mm sebesar 3,10 km2, dan curah hujan 116,2 mm sebesar 3,85 km2, sedangkan nilai luas sebaran pada simulasi dengan bangunan sabo pada curah hujan 58,1 mm sebesar 1,78 km2, curah hujan 87,15 mm sebesar 2,40 km2, dan curah hujan 116,2 mm sebesar 2,93 km2. Berdasarkan hasil penelitian tersebut dapat disimpulkan bahwa curah hujan sangat berpengaruh terhadap dampak banjir lahar semakin tinggi curah hujan maka semakin besar luas wilayah yang terdampak banjir lahar. Berdasarkan simulasi tersebut bangunan sabo efektif untuk mengurangi luasan banjir lahar.
Correlation Analysis Between Measured Rain Data with Satellite at Rainfall Station in Merapi Ikhsan, Jazaul; Sari, Amalia Kurnia; Hairani, Ani; Hidayah, Alidina Nurul
Semesta Teknika Vol 27, No 1 (2024): MEI
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/st.v27i1.22180

Abstract

Manual and automatic rain gauges often need to be revised in measuring rainfall due to various constraints. Therefore, using rain data from satellites will be a promising alternative. The rain data used is measured hourly rainfall data 20mm in 2012, 2017, and 2022. In addition, rain data from the PERSIANN and GPM satellites were also used. The analysis was carried out using the correlation coefficient (r) method, which aims to find the correlation between measured rain data and satellite rain data. The results show that the PERSIANN satellite has the highest correlation value in rain duration in two years, while the GPM satellite has the highest total depth and intensity correlation value in two years. Therefore, it can be concluded that the GPM satellite has better accuracy than the PERSIANN satellite in monitoring rain.
Peningkatan Kepedulian Masyarakat Terhadap Lingkungan Pada Dusun Klangkapan 2 Margoluwih Sayegan Sleman Lesmana, Surya; Barid, Burhan; Ikhsan, Jazaul; Risdiyanto, Risdiyanto
Sambulu Gana : Jurnal Pengabdian Masyarakat Vol. 2 No. 3 (2023): September 2023
Publisher : Lembaga Penelitian dan Pengabdian Pada Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56338/sambulu_gana.v2i3.4041

Abstract

Sampah telah menjadi problematika bagi kita semua serta lingkungan yang kita tempati. Sampah setiap hari diproduksi dari hasil berbagai aktivitas manusia. Produksi sampah yang semakin alam meningkat jumlahnya seiring dengan bertambahanya populasi penduduk dan isdustri, tidak sebanding dengan kapasitas tempat pembuangan sampah akhir. Hal ini mengakibatkan permasalahan dalam pengelolaan sampah.yang ada Adapun tujuan yang ingin dicapai dalam pengabdian ini adalah untuk meningkatkan pengetahuan masyarakat mengenai metode pengelolaan sampah serta metode pengolahannya untuk sampah dalam skala rumah tangga. Metode yang digunakan dalam pengabdian ini adalah sosialisasi pilah pilih sampah serta pelatihan mengolah sampah organic yang berasal dri rumah tangga. Program pengabdian ini sangat membantu masyarakat dengan hasil : masyarakat mampu mengetahui berbagai jenis sampah yang ada, masyarakat memiliki kesadaran yang meningkat dalam hal pengelolaan sampah, masyarakat dapat mengetahui metode pengelolaan dan pengolahan sampah yang tepat, dan masyarakat memiliki kesadaran untuk membentuk kekompok shodaqoh sampah sebagai wujud nyata dalam mewujudkan pengelolaan sampah yang baik untuk menjaga lingkungan tetap sehat
Intelligent Forecasting of Flooding Intensity Using Machine Learning Deng, Abraham Ayuen Ngong; Nursetiawan, .; Ikhsan, Jazaul; Riyadi, Slamet; Zaki, Ahmad
Civil Engineering Journal Vol 10, No 10 (2024): October
Publisher : Salehan Institute of Higher Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28991/CEJ-2024-010-10-010

Abstract

This innovative study addresses critical flood prediction needs in Bor County, South Sudan, utilizing machine learning to develop an intelligent forecasting model. The research integrates diverse analytical techniques, including land use analysis and rainfall calculations, with a decade of weather data to understand complex hydrological dynamics. This research employs machine learning classifiers such as Support Vector Machines, Decision Trees, and Neural Networks. Findings reveal promising results, with the Linear SVM classifier achieving 87.5% prediction accuracy for raw data and 100% accuracy for high-velocity flooding events. The Naive Bayes classifier matched this performance, while Artificial Neural Networks showed a slight advantage in runoff estimation. The study's novelty lies in its holistic approach, combining machine learning with advanced visualization tools and geographic information systems. This creates a dynamic, real-time forecasting system bridging sophisticated analysis and practical flood management strategies. Focusing on model interpretability and multi-scale forecasting enhances its value to policymakers and disaster management authorities. This research significantly advances the application of AI to flood prediction and disaster management in offering future studies on humanitarian challenges. By enhancing early warning capabilities, this system substantially reduces flood-related losses and transforms disaster preparedness in vulnerable regions worldwide, potentially saving lives and mitigating economic impacts. Doi: 10.28991/CEJ-2024-010-10-010 Full Text: PDF
A Bibliometric Review of the Dam Construction Impact Fata, Nurul; Ikhsan, Jazaul
Semesta Teknika Vol. 27 No. 2 (2024): NOVEMBER
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/st.v27i2.24852

Abstract

Dams are crucial constructions for managing water supplies. However, the detrimental environmental effects of dam development have also drawn criticism. The influence of dam construction over the past fourteen years and new research trends are included in this study.  This study aims to determine how many papers have been produced, how productive researchers are, and chart the evolution of dam impact publications. The analysis showed that 1312 publications related to the topic discussed were generated. The findings demonstrated that engineering and environmental studies were the main focus of research trends concerning the effects of dam development. This study provides an overview of the trends in the direction of existing literature for future research, and evaluation of research topics through existing topic clusters. China, the USA and the United Kingdom are the three leading countries in dam construction impact research in terms of publications.
Pemodelan Banjir Lahar Dingin di Daerah Vulkanis dengan Menggunakan SIMLAR Ikhsan, Jazaul; Hairani, Ani; Ardiansyah, Ridwan
Jurnal Konstruksi Vol 22 No 2 (2024): Jurnal Konstruksi
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/konstruksi/v.22-2.1632

Abstract

Tahun 2010 erupsi Gunung Merapi memuntahkan material vulkanis lebih dari 140.000.000 m³, disusul dengan bencana sekunder yaitu banjir lahar dingin. Kali Putih adalah salah satu sungai yang diterjang banjir tersebut beserta pemukiman di bantarannya. Penyebabnya adalah bagian hulu Kali Putih, Kabupaten Magelang telah tertutup material vulkanis Gunung Merapi sebanyak ±9.3000.000 m³. Untuk mengurangi dampak negatif dari kejadian banjir lahar, perlu dilakukan simulai kejadian banjir lahar pada suatu daerah aliran sungai (DAS).  Penelitian ini bertujuan untuk mensimulasikan dampak kejadian banjir lahar pada DAS Kali Putih. Simulasi Lahar (SIMLAR) 2.1 digunakan untuk mensimulasikan banjir lahar dingin pada penelitian ini. Data masukan yang diperlukan pada SIMLAR adalah data curah hujan, data sedimen, dan DEM area studi. Efektifitas bangunan sabo dam dikaji dengan membandingkan hasil simulasi antara tanpa bangunan sabo dam dan dengan sabo dam. Hasilnya, bangunan sabo dam mampu memperlambat laju terjangan banjir lahar dingin. Berdasarkan simulasi dengan tambahan sabo dam, pada menit ke 240, banjir lahar belum mencapai titik 12 (Sabo dam PU-C8 Ngaglik) dan 13 (Sabo dam PU-C2 Gempal). Sedangkan simulasi tanpa sabo dam, banjir telah mencapai titik 12 pada menit ke 360 serta titik 13 pada menit ke 600.  Selain itu berfungsi sebagai penahan erosi tanah lalu merubahnya menjadi tumpukan sedimentasi sebesar 3,95 m pada sabo dam pertama (PU-D1 Mranggen) menit ke 360.
Pendampingan Perhitungan Tarif Air Bersih SPAMdes Ngudi Tirto Kulon Progo: Assistance in Calculation of Clean Water Rates for SPAMdes Ngudi Tirto Kulon Progo Barid, Burhan; Rizani, Aisyah Azzahra; Ikhsan, Jazaul; Lesmana, Surya Budi; Hairani, Ani; Widodo, Wahyu; Robial, Siti Muawanah
PengabdianMu: Jurnal Ilmiah Pengabdian kepada Masyarakat Vol. 10 No. 6 (2025): PengabdianMu: Jurnal Ilmiah Pengabdian kepada Masyarakat
Publisher : Institute for Research and Community Services Universitas Muhammadiyah Palangkaraya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33084/pengabdianmu.v10i6.8865

Abstract

Clean water management in rural areas has not provided optimal results. The applied water tariffs are not enough to cover the required production and operational costs. The existing prices are still based on agreements with the community, who tend to want the lowest rates. Reasonable pricing needs to be re-evaluated so that all production and operational costs can be covered, and there is a reserve budget for development. This community service activity involves assistance in calculating clean water tariffs with the managers of the Independent Water Management Organization for the Rural Clean Water Supply System (OKAM SPAMDes) Ngudi Tirto in Kebonromo Hamlet, Giripurwo Village, Girimulyo District, Kulon Progo Regency. Assistance begins with the collection of financial data, which includes income and expenditure budgets. The determination of water tariffs based on these data refers to Permendagri Number 21 of 2020. The data used for analysis are financial reports and water usage by SPAMDES Ngudi Tirto customers in 2023. The calculation results will be presented at the next meeting through routine group meetings. The minimum reasonable basic clean water tariff price is IDR. 6,500/m³, which was previously only Rp. 5,000/m³. OKAM Ngudi Tirto now understands the calculation of the water tariff to cover operational costs and obtain profit from the SPAMDes.
Evaluation of Infiltration Models with Double Ring Infiltrometer Test on Residual Soil in Kulonprogo, Indonesia Muntohar, Agus Setyo; Ikhsan, Jazaul; Setiati, Rehni; Uzuoka, Ryosuke
Civil Engineering Dimension Vol. 27 No. 2 (2025): SEPTEMBER 2025
Publisher : Institute of Research and Community Outreach - Petra Christian University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9744/ced.27.2.193-202

Abstract

The hydraulic conductivity of soil is an essential parameter for evaluating the slope instability triggered by rain infiltration. This research uses a Double-Ring Infiltrometer (DRI) at five locations to estimate the hydraulic conductivity from a field infiltration test. Four infiltration models were examined to estimate hydraulic conductivity, including Green–Ampt, Kostiakov, Horton, and Philips equations. Curve fitting on the infiltration rate–time plots were computed with the least square error to determine the infiltration parameters using Levenberg–Marquardt algorithm. The basic infiltration rate ranges from 6.88 mm/h to 721.5 8 mm/h.  The Horton and Philips infiltration model provides better statistical performance to estimate the infiltration rate. The estimated hydraulic conductivity from the four infiltration models results in a relative convergence value; however, the estimation results in more biased hydraulic conductivity at locations containing clay fraction and high-plasticity silt, especially for Green–Ampt and Philip infiltration models.
Analisis Respon Hidrologi Dengan Simulasi Hujan Terhadap Perubahan Fungsi Lahan: Studi Kasus Di Situ Cibuntu: Analysis Of Hydrological Response With Rainfall Simulation On Changes In Land Function: Study Case Cibuntu Lake Cahyono, Afandi Wahyu; Ikhsan, Jazaul; Apip, Apip
Media Ilmiah Teknik Sipil Vol. 12 No. 2 (2024): Media Ilmiah Teknik Sipil
Publisher : ​Institute for Researches and Community Services Universitas Muhammadiyah Palangkaraya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33084/mits.v12i2.6881

Abstract

Changes in land use in Indonesia are often not accompanied by land conservation measures, which causes land to become increasingly degraded, which is characterized by high erosion hazards and low levels of rainwater infiltration. To determine the impact of changes in land function, it is necessary to carry out a hydrological response analysis to determine the land's response to falling rainfall, one of which is using the rain simulator. This research was carried out by providing rain simulations on two land functions, namely on artificial forest land and open land. This research uses several hydrological parameters such as rainfall, infiltration, soil moisture, runoff and sediment yield as a comparison of the response on the two fields. The results of this research show that the change in land function from forest to open land causes changes in the hydrological response, which causes the potential for flooding due to reduced permeable land, resulting in a lot of rain running off
STUDI LAJU INFILTRASI DI KAWASAN RAWAN BENCANA DAS PABELAN PASCA ERUPSI GUNUNG MERAPI TAHUN 2010 Ikhsan, Jazaul; Rivanto, Ade Prima
TAPAK [Teknologi Aplikasi Konstruksi] : Jurnal Program Studi Teknik Sipil Vol 13, No 2 (2024): Mei 2024
Publisher : Prodi Teknik Sipil Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/tp.v13i2.3395

Abstract

Sedimen dari material vulkanik Gunung Merapi yang mencapai 150 juta m3 dapat mempengaruhi kapasitas infiltrasi tanah yang menentukan besarnya limpasan permukaan (surface run off), sehingga perlu adanya penelitian untuk mengetahui nilai kapasitas infiltrasi tanah dan faktor-faktor yang mempengaruhinya pasca erupsi. Penelitian ini bertujuan untuk mengetahui nilai kadar air tanah dan nilai kepadatan tanah lapangan serta mengetahui nilai kapasitas infiltrasi tanah dan volume total air infiltrasi di kawasan rawan bencana (KRB) DAS Pabelan pasca erupsi tahun 2010. Pemeriksaan kepadatan tanah lapangan menggunakan alat kerucut pasir (sand cone) dan untuk pengambilan sampel tanah menggunakan silinder dengan diameter 10 cm dan tinggi 30 cm. Untuk pengukuran laju infiltrasi menggunakan double ring infiltrometer dengan ukuran diameter ring 55 cm dan 30 cm, dengan tinggi 27 cm. Titik-titik pengujian terbagi menjadi tiga lokasi yaitu KRB I, KRB II, dan KRB III. Hasil nilai kadar air tanah pada lokasi KRB I sebesar 52,37 %, lokasi KRB II sebesar 28,05 % dan lokasi KRB III sebesar 36,49 %. Nilai kepadatan tanah lapangan pada lokasi KRB I sebesar 11,05 KN/m3, lokasi KRB II sebesar 9,70 KN/m3 dan lokasi KRB III sebesar 8,45 KN/m3. Nilai kapasitas infiltrasi pada lokasi KRB I sebesar 7,285 cm/jam, lokasi KRB II sebesar 7,859 cm/jam dan lokasi KRB III sebesar 26,227 cm/jam. Volume total air infiltrasi seluas area 1 m2 pada lokasi KRB I sebesar 0,08369 m3, lokasi KRB II sebesar 0,0966 m3 dan lokasi KRB III sebesar 0,28573 m3
Co-Authors Ade Prima Rivanto Ade Prima Rivanto Adhianty Nurjanah Adi Sunarto, Asril Agus Setyo Muntohar Agus Setyo Muntohar Ahmad Zaki Alfian Ma’arif Ali Nursamsi Dahlan Alidina Nurul Hidayah, Alidina Nurul Ani Hairani, Ani Anjasmara, Krisna Bagus Apiniti Jotisankasa Apip Apip Apip, Apip Asril Adi Sunarto Budiarto Budiarto Burhan Barid Cahyono, Afandi Wahyu Deng, Abraham Ayuen Ngong Dyah Mutiarin Fata, Nurul Hakas Prayuda Hartono Hartono Hartono Hartono Hendra Hendra Hendy Dwi Cahyo Hilmi, Ikhlassul Hiro Agung Pratama Hung-Jiun Liao Irfan Jufianto Iswanto Suwarno Jufianto, Irfan Kartika, Nia Krisna Bagus Anjasmara Lesmana, Surya Nia Kartika Nia Maharani Raharja Novika Komariona Dewi Nursamsi Dahlan, Ali Nursetiawan Ikhsan Nursetiawan Nursetiawan, Nursetiawan Nursetiawan, . Pengki Irawan Puji Harsanto Purwanto Purwanto Purwanto Purwanto Ramadhan, Muhammad Rifqi Ridwan Ardiansyah Risdiyanto Risdiyanto Rivanto, Ade Prima Rizani, Aisyah Azzahra Robial, Siti Muawanah Rohman, Fahrul Rudi Saputra Sabtanti Harimurti Sari, Amalia Kurnia Sasongko, Danang Setiati, Rehni Slamet Riyadi Slamet Riyadi Sri Atmadja Putra Rosyidi Sri Atmaja Sriyadi Sriyadi Sriyadi Sriyadi Sriyadi Sriyadi Sriyadi Sriyadi Sriyadi Sriyadi, Sriyadi Sunarhadi, M. Amin Surya Budi Lesmana Surya Budi Lesmana Tahadjuddin Uzuoka, Ryosuke Victor G. Jetten Wahyu Widodo Wahyu Widodo Wahyudi Hidayat, Wahyudi Wawan Shodiq Purnomo