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All Journal AGREGAT SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan
Bagas Aryaseta
Universitas Pembangunan Nasional “Veteran” Jawa Timur
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RAINWATER HARVESTING SYSTEM SEBAGAI UPAYA PENYEDIAN AIR DI DESA GILI KETAPANG Aulia Dewi Fatikasari; Bagas Aryaseta; Pardi Sampe Tola
SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Vol 7, No 3 (2023): September
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jpmb.v7i3.16756

Abstract

ABSTRAKDesa Gili Ketapang merupakan desa yang terletak di pulau kecil di Kabupaten Probolinggo. Secara umum permasalahan yang mendasar di wilayah Desa Gili Ketapang yaitu ketersediaan air bersih. Oleh karena itu, pembangunan di Desa ini  mengutamakan penyediaan air bersih yang cukup untuk kebutuhan. Pemanfaatan air hujan merupakan salah satu solusi untuk menyediakan air bersih. Air hujan dapat menjadi sumber yang bermanfaat bagi masyarakat terutama pada wilayah-wilayah yang kesulitan mendapatkan akses air bersih salah satunya menggunakan Rainwater Harvesting System. Oleh karena itu dilaksanakan kegiatan pengabdian masyarakat dalam bentuk penyediaan alat yang berguna untuk menyediakan air bersih melalui proses penyaringan sederhana dengan memanfaatkan air hujan yaitu dengan membuat Rainwater Harvesting System. Pelaksanaan kegiatan di lokasi terbagi menjadi 2 kegiatan yaitu kegiatan sosialisasi berupa pemaparan materi di dalam Balai Desa dan kegiatan praktik merakit yang dilakukan di area sekitar Balai Desa. Kegiatan ini memberikan dampak positif yaitu memberikan pemahaman kepada masyarakat Gili Ketapang  mengenai penampungan air hujan agar dapat  digunakan untuk kebutuhan sehari hari. Kegiatan ini juga dihadiri oleh masyarakat Gili Ketapang dengan karakteristik terbanyak yaitu berjenis kelamin perempuan 73%, usia sekitar 36-45 tahun sebanyak 40%, dan pekerjaan terbanyak yaitu ibu rumah tanggal sebesar 34%. Kata kunci: rainwater harvesting system;, air bersih; air hujan; pemanfaatan air. ABSTRACTGili Ketapang Village is a village located on a small island in Probolinggo Regency. In general, the fundamental problem in the Gili Ketapang Village area is the availability of clean water. Therefore, the development in this village prioritizes the provision of sufficient clean water for human needs. Utilization of rainwater is one solution to provide clean water. Rainwater can be a useful resource for the community, especially in areas that have difficulty getting access to clean water, one of which is using the Rainwater Harvesting System. Therefore, community service activities are carried out in the form of providing tools that are useful for providing clean water through a simple filtering process by utilizing rainwater, namely by making a Rainwater Harvesting System. The implementation of activities at the location is divided into 2 activities, namely socialization activities in the form of presentation of material in the Village Hall and practical assembly activities carried out in the area around the Village Hall. This activity had a positive impact, namely providing understanding to the people of Gili Ketapang about rainwater harvesting so that it can be used for their daily needs. This activity was also attended by the people of Gili Ketapang with the most characteristics, namely female sex 73%, around 36-45 years of age 40%, and the most occupations were housewives by 34%. Keywords: rainwater harvesting system; clean water; rain water; utilization of water.
Analisis Komparatif Potensi Likuefaksi Menggunakan Metode Youd & Idriss dan Idriss & Boulanger Berdasarkan Data SPT M Naufal Ramadhan Naufal; Bagas Aryaseta; Karina Meilawati Eka Putri; Miguel Felix Wijaya
AGREGAT Vol 11 No 1 (2026)
Publisher : Universitas Muhammadiyah Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30651/ag.v11i1.31444

Abstract

Indonesia is one of the countries with high levels of seismic activity because it lies at the junction of three major tectonic plates and along the Pacific Ring of Fire. These conditions make several regions, including the Special Region of Yogyakarta, vulnerable to earthquakes and their associated impacts, one of which is liquefaction. This study aims to analyze the potential for liquefaction in the Yogyakarta Toll Road Construction Project, Section 2, Package 2.1, Sleman, using the Youd & Idriss and Idriss & Boulanger methods based on Standard Penetration Test (SPT) data. The analysis was conducted at three borehole locations—BH-86, BH-89, and BH-93—selected because they have the highest groundwater levels, thereby representing the most critical conditions regarding the likelihood of liquefaction. Earthquake magnitude variations of 6, 6.3, and 7 were used in this study to evaluate the influence of magnitude on liquefaction potential at the study site. The analysis was conducted by calculating soil resistance parameters against liquefaction based on each method, then comparing the results for each borehole and earthquake magnitude variation. The analysis results indicate that an increase in earthquake magnitude leads to an increase in soil cyclic load and a decrease in the Safety Factor value, thereby increasing the potential for liquefaction. Soil layers located below the groundwater table exhibit higher vulnerability to liquefaction compared to those above it. A comparison of the results shows that both methods exhibit similar trends, namely that the potential for liquefaction increases as earthquake magnitude increases. However, the Idriss & Boulanger (2008) method generally yields lower Safety Factor values compared to the Youd & Idriss (2001) method, making it more conservative in evaluating liquefaction potential. Thus, this study demonstrates that variations in earthquake magnitude and differences in analytical methods influence the results of liquefaction potential evaluations at the study site.
Co-Authors Fatikasari, Aulia Dewi Karina Meilawati Eka Putri M Naufal Ramadhan Naufal Miguel Felix Wijaya Pardi Sampe Tola