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All Journal Jurnal Ilmiah Telaah Manajemen Jurnal Ilmiah Desain & Konstruksi JURNAL HUTAN LESTARI Bioeksperimen: Jurnal Penelitian Biologi Jurnal Pengabdian Kepada Masyarakat (Indonesian Journal of Community Engagement) Jurnal Teknik Sipil JMBI UNSRAT (Jurnal Ilmiah Manajemen Bisnis dan Inovasi Universitas Sam Ratulangi) International Journal of Supply Chain Management Efektor Holistik Jurnal Kesehatan Majalah Ilmiah Bijak Transparansi Jurnal Ilmiah Ilmu Administrasi Jurnal Review Pendidikan dan Pengajaran (JRPP) JURNAL SUMBER DAYA AIR Jurnal Ilmiah Manajemen Kesatuan JIIP (Jurnal Ilmiah Ilmu Pendidikan) Reswara: Jurnal Pengabdian Kepada Masyarakat Best Journal of Administration and Management Eduvest - Journal of Universal Studies Ranah Research : Journal of Multidisciplinary Research and Development Sinergi International Journal of Management and Business Suhuf: International Journal of Islamic Studies Holistik Jurnal Kesehatan
JOKO NUGROHO
Kelompok Keahlian Sumber Daya Air Fakultas Teknik Sipil dan Lingkungan Institut Teknologi Bandung Jl. Ganesa No.10 Bandung 40132.
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Journal : JURNAL SUMBER DAYA AIR

 1 
KAJIAN LAJU INFILTRASI PADA LERENG YANG TERTUTUP ABU VULKANIK BERDASARKAN EKSPERIMEN SKALA LABORATORIUM Nugroho, Joko; Soekarno, Indratmo; Yunita, F Tata; Kuntoro, Arno Adi
JURNAL SUMBER DAYA AIR Vol 18, No 1 (2022)
Publisher : Direktorat Bina Teknik Sumber Daya Air, Kementerian Pekerjaan Umum dan Perumahan Rakyat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32679/jsda.v18i1.744

Abstract

Indonesia has 129 active volcanoes; therefore, the volcanic-related disasters risk is relatively high. Lahar flood is a secondary post-eruption disaster, which is triggered by the rainfall due to the movement of volcanic material by the runoff. After the eruption, there will be some significant changes in the watershed characteristics, especially the land cover, slope, and eruption material. This condition increases the possibility of the lahar flood events. Several studies have indicated an increase in runoff due to volcanic ash deposits on slopes. In this regard, the aim of this research is to understand the effects of volcanic ash layer on the slope on the infiltration rate. The physical model laboratory in the form of a laboratory-scale demonstration plot (demplot) were used, where the parameters reviewed include the slope, the volcanic ash thickness, and the rainfall intensity. The results indicate that the infiltration rate on the slopes covered with volcanic ash decreases with the average decrease in the ratio of infiltration to total rainfall about 1.6% per 1 cm thickness of the volcanic ash layer. In addition, the decrease in infiltration rate per 1 cm thickness of volcanic ash on a slope with a slope of 80 was higher (2.3%), compared to a slope of 150 (0.7%). The Philip's infiltration model fits better with the actual measurement data than the Green-Ampt one. The significant parameter in influencing the infiltration rate of the volcanic ash layer with Philip's model based on sensitivity analysis is sorptivity.Keywords: Infiltration rate, Philip, Green-Ampt, volcanic ash, physical model test  
Co-Authors Adelina Hasyim Adi Prasetyo Adinata, Fitra Agung Wiyono Agus Darwanto Agus Suyatna Ahmad Hidayat Aji, Alfian Chrisna Akbar , Muhammad Yusuf Akbar, Ya’ Muhammad Arsyil Annas, Syaeful Arfin, Antoni Ludfi Arifin, Antoni Ludfi Arno Adi Kuntoro, Arno Adi Asih Priyati Bachrun Nurdjali Bambang Purwantana Bari, Zunaidi Benito H Purwanto, Benito H Cahyo, Sevtian Arief Nur Caniago, Aspizain Chaidar, Ana N. Christian Adi Nugroho, Christian Adi Dandi Wirustyastuko, Dandi Dantje Kardana Natakusumah Darjat Sudrajat, Darjat Dasapta Erwin Irawan Destanto, Andri Dewi, Puti Sari Dhemi Harlan, Dhemi Eka Oktariyanto Nugroho Eka Risma Zaidun, Eka Risma Elly Nurachmah Erni Romansyah fauzi, ryo muhammad Febriati, Listia Dwi Halim, Paisal Hanifah, Dhiya Aulia Hardian, Verus Hatma Suryatmojo Indratmo Soekarno Indriyani, Rini Irawanto, Adhitya Gilang Ismail, Dingot Hamonangan Joko S Dwi Raharjo Jul Fachri, Fiqih Khairiansyah, Muhammdad Ludfi, Atha Adiwidya Maria, Riri Ngadisih Ngadisih Nunung Puji Nugroho Nur Cahyono, Prastowo Fajar Nursigit Bintoro nutriawani, rafika Paringsih, Novia Citra Ratna Herawatiningsih Ratnaningsih, Ester S., Chiyar Edison Santhyami Santhyami Selvi Marcellia Sigit Andy Cahyono, Sigit Andy Sigit Supadmo, Sigit Siti Latifah Sofyan Zainal Solihin, Agung Solihin, Dadang Sri Legowo Sri Rahayoe Surya Abdul Muttalib, Surya Abdul Toha, Toha ha Tri Widiastuti Warcito Wardana, Kun Wahyu Widiarto, Wahyu Widyaningtias Widyaningtias, Widyaningtias Yunita, F Tata Zakiyah, Zahrah