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Analisis Potensi Debit Air Tanah Melalui Pumping Test Metode Step Draw Down pada Sumur Bor Irigasi di Desa Bonto Rannu, Kecamatan Kajang, Kabupaten Bulukumba, Sulawesi Selatan Agussalim; Muliana Djafar; Andi Syam Rizal
JFT : Jurnal Fisika dan Terapannya Vol 9 No 2 (2022): DESEMBER
Publisher : Universitas Islam Negeri Alauddin Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/jft.v9i2.32277

Abstract

The rice fields in Bonto Rannu Village, Kajang District, Bulukumba Regency are dominated by rainfed rice fields. This species has limitations in the dry season because irrigation/agricultural irrigation is completely dependent on rainwater. Therefore, it is necessary to identify alternative irrigation sources for the sustainability of farmers' farming activities in Bonto Rannu Village. This study aims to analyze the quantity of groundwater wells by testing in the form of a pump test (pumping test) with the step draw down method. The optimum discharge (Qopt) of well 1 is 0.01876 m3/s or 67.53 m3/hour with an optimum Sw of 2.891 m. This shows that groundwater in well 1 can be pumped at 67.53 m3/hour with a decrease in water level of 2.891 m with the pump condition still technically safe. As for well 2, the optimum discharge (Qopt) is 0.00318 m3/s or 11.45 m3/hour with an optimum Sw of 2.100 m. These data indicate that there are limited groundwater reserves.
PENDUGAAN ZONA AKUIFER DENGAN METODE GEOLISTRIK RESISTIVITY KONFIGURASI SCHLUMBERGER DI DESA JENETALLASA KECAMATAN BANGKALA KABUPATEN JENEPONTO Musriadi Musriadi; Ayusari Wahyuni; Andi Syam Rizal; Sahrul Sani Saparuddin; Andi Devi Sri Anjani
JFT : Jurnal Fisika dan Terapannya Vol 6 No 2 (2019): Desember
Publisher : Universitas Islam Negeri Alauddin Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (396.131 KB) | DOI: 10.24252/jft.v6i2.11723

Abstract

Springs are a problem in areas where geographic conditions are predominantly hot with low annual rainfall. Water is one of the basic needs for all living things on Earth, both plants, animals and especially humans. If there is a scarcity of spring sources, it is certain that daily activities are very disturbed. Scarcity of springs as happened in Jenetallasa Village greatly influences community activities in the Village. Prolonged drought results in increasingly severe water scarcity that occurs. Based on this problem, a field study was conducted to estimate the aquifer zone. Aquifers are a source of springs located in cavities brought under the surface of the ground which reminisce or flow. Aquifers themselves can be predicted without existence of drilling or excavation. Detection of aquifers can be done using geoelectric methods with different configurations. Our field study this time uses a schlumberger configuration with a length of 120 meters with an approximate depth of 60 meters below ground level.
IDENTIFIKASI POTENSI AIR TANAH MENGGUNAKAN METODE RESISITIVITAS KONFIGURASI SCHLUMBERGER DI KECAMATAN BONTORAMBA KABUPATEN JENEPONTO Agussalim Agussalim; Andi Syam Rizal
JFT : Jurnal Fisika dan Terapannya Vol 8 No 1 (2021): JUNI
Publisher : Universitas Islam Negeri Alauddin Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/jft.v8i1.21489

Abstract

Drought usually occurs, especially during the dry season in Bontoramba, Jeneponto Regency, South Sulawesi. Therefore, it is necessary to study the potential of groundwater to meet the water needs of the Bontoramba community during the dry season. A way to identify groundwater is by using the resistivity method. This method is applied with Schlumberger configuration that gives good results vertically. The purpose of this study was to identify the potential for groundwater both in position and depth based on the results of the interpretation of measurements using the resistivity method of the Schlumberger configuration. This research is experimental research with a descriptive method. Data were processed, analyzed, and interpreted using Res2dinv. Through the results of this interpretation, modeling of the distribution of the aquifer layer in the soil is then carried out which is projected as groundwater. The results showed that the groundwater layer in path 1 and path 2 were on average at a depth of 10-30 m, path 3 and path 4 at a depth more than 30 m from the ground surface.
IDENTIFIKASI UNSUR TANAH LITOSOL DENGAN METODE XRF (X-RAY FLUORESCENCE) DAN FTIR (FOURIER TRANSFORM INFRA RED) BERDASARKAN TITIK ELEVASI DI DESA SAMANGKI KECAMATAN SIMBANG KABUPATEN MAROS Jumardin Jumardin; Andi Syam Rizal; Minarti Minarti; Abdul Munim Thariq; Nurhafida Turayni; Wahyullah Wahyullah
Karst: Jurnal Pendidikan Fisika dan Terapannya Vol 6 No 1 (2023): Karst : Jurnal Pendidikan Fisika dan Terapannya
Publisher : Program Studi Pendidikan Fisika FKIP Universitas Muslim Maros

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46918/karst.v6i1.1733

Abstract

XRF method to determine elemental content and FTIR test to determine the nature of chemical compounds (functional groups) of Litosol soil at the slope (elevation angle) and the distance of the research trajectory lines. The identified elemental levels are Fe, Si, Ti, K, Mn and Ca. Fe represents the highest elemental content value for each research path. Fe for paths (1-2) are 23.82 % and 37.69%, tracks (5-6) are 23.11% and 37.47%, and paths (9-10) are 40.44% and 33.99% at different elevation angles. The lowest element level is Ca. The value of Ca for each track is 0.24% and 0.66% (1-2), 0.28% and 0.30% (5-6) and 0.27% and 0.62% (9-10) for each different elevation angle. The FTIR method to determine functional groups (chemical compounds) uses the same parameters as the XRF method. The O-H functional groups were detected at wave numbers 3698.31 cm-1 and 3620.34 cm-1 with the theoretical accuracy ranges of 3700-3000 cm-1 and 3590-3650 cm-1. The C=C which is a double bond functional group was detected at wave number 1640.8 cm-1 in the theoretical range of 1610-1680 cm-1. The C-H functional group on each track was detected in three different types of wave numbers with values of 908.99 cm-1, 786.86 cm-1 and 746 cm-1, respectively. The range of wave number accuracy for C-H is 690-900 cm-1.
Monitoring Potensi Tanah Longsor Menggunakan Metode Resistivitas Di Desa Samangki Kecamatan Simbang Kabupaten Maros Rizal, Andi Syam; Jumardin; Minarti; Nurfalaq, Aryadi; Agussalim
JPF (Jurnal Pendidikan Fisika) Universitas Islam Negeri Alauddin Makassar Vol 11 No 2 (2023)
Publisher : Pendidikan Fisika UIN Alauddin Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/jpf.v11i2.37314

Abstract

Penelitian ini bertujuan untuk mengetahui area rawan longsor menggunakan metode resistivitas di Desa Samangki Kecamatan Simbang Kabupaten Maros. Penelitian ini dilakukan di Desa Samangki Kecamatan Simbang Kabupaten Maros pada 5 titik di lereng jalur Maros – Bone. Pengukuran dilakukan untuk mendeteksi potensi tanah longsor menggunakan metode resistivitas konfigurasi wenner alpha. Data yang diperoleh berupa besar tegangan dan arus kemudian dianalisis melalui Software Microsoft Excel dan Res2DInv untuk mendapatkan penampang model 2-Dimensi. Hasil penampang 2-D digunakan untuk memperoleh struktur batuan di bawah permukaan bumi. Hasil penelitian menunjukkan adanya lapisan napal pasiran, gamping pasiran, dan gamping koral pada wilayah pengukuran yang merupakan bagian dari formasi tonasa batugamping. Adapun area yang rawan terjadi tanah longsor yaitu pada lintasan 2, lintasan 3, lintasan 4, dan lintasan 5, kecuali lintasan 1 yang masih didominasi oleh batuan yang memiliki nilai resistivitas tinggi dan mampu menahan area yang beresistivitas rendah di bagian atas lereng. Sedangkan ke 4 lintasan lainnya berada di area yang curam dan terindikasi adanya rekahan yang tersaturasi air, sehingga berpotensi terjadi tanah longsor pada jarak yang sama yakni 110 meter.
Analisis Air Tanah Menggunakan Metode Geolistrik ResistivitasKonfigurasi Schlumberger di Desa Buntu Sarong Kecamatan Masalle Kabupaten Enrekang Munafri, Yusuf; Kusmiran, Amirin; Rahmaniah, Rahmaniah; L, Muh. Said; Rizal, Andi Syam
Journal of Health, Education, Economics, Science, and Technology Vol. 7 No. 2 (2025): Journal of Health, Education, Economics, Science, and Technology
Publisher : Journal of Health, Education, Economics, Science, and Technology

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36339/

Abstract

A study has been conducted to determine the distribution of groundwater potential below the surface using the Schlumberger configuration resistivity geoelectrical method in Buntu Sarong Village, Masalle District, Enrekang Regency. The way the Schlumberger configuration works is to adjust the distance between the electrodes, where the distance between the constant voltage electrodes and the distance between the current electrodes change sequentially. This study was carried out in stages at three points. At sounding point 1, the groundwater potential is in the third layer with a resistivity value of 11.2 Ωm. This layer indicates the possibility of clay that has the potential to act as a water retainer or has a good water storage capacity. Meanwhile, at sounding point 2, the groundwater potential is in the third layer (14.4 Ωm) which indicates the presence of clay or fresh groundwater and at sounding point 3, there is a possibility of water potential in the second layer (2.28 Ωm) which indicates the presence of clay or fine sediment that is very saturated with water.
Penentuan Titik Bor Air Tanah Menggunakan Metode Geolistrik Tahanan Jenis Sebagai Solusi Krisis Air Di Kaki Gunung Latimojong Kabupaten Enrekang Rizal, Andi Syam; Jumardin, Jumardin
Al-Khidmat : Jurnal Ilmiah Pengabdian Kepada masyarakat Vol. 8 No. 1 (2025): Jurnal Al-Khidmat : Jurnal Ilmiah Pengabdian Kepada Masyarakat
Publisher : Pusat Pengabdian kepada Masyarakat LP2M UIN Sunan Gunung Djati Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Abstrak Fokus kegiatan ini adalah untuk membantu masyarakat mengetahui potensi air tanah dan menentukan titik bor air tanah menggunakan metode geolistrik tahanan jenis sebagai solusi krisis air di Kaki Gunung Latimojong Kabupaten Enrekang. Lokasi kegiatan dilakukan di Kaki Gunung Latimojong Kabupaten Enrekang dengan jumlah lintasan pengukuran sebanyak 3 konfigurasi schlumberger. Pengumpulan data melibatkan pemerintah dan warga setempat. Data yang dibutuhkan pada kegiatan ini ada 2 yaitu data geologi dan data geofisika.  Data geologi diperoleh dari hasil pengamatan struktur batuan di atas permukaan dan data kedalaman sumur warga di sekitar lokasi kegiatan. Sedangkan data geofisika, diperoleh menggunakan alat resistivitimeter. Analisis data yang dilakukan yaitu menggunakan Software Microsoft Excel, Notepad, QGis, IPI2WIN, dan Res2DInv untuk mendapatkan model bawah permukaan. Model ini diinterpretasi menggunakan tabel resistivitas batuan untuk memetakan air tanah di Kaki Gunung Latimojong Kabupaten Enrekang. Setelah dilakukan interpretasi maka dilakukan penentuan titik bor air tanah. Lapisan air tanah ditemukan pada 2 titik pengukuran dengan kondisi yang tipis. Hal ini disebabkan oleh formasi batuan di Kaki Gunung Latimojong didominasi batuan beku yang berasal dari formasi latimojong. Titik pengeboran air tanah pada Kaki Gunung Latimojong terdapat pada koordinat 03°25’00.00” S dan 119°59’24.53” E ketinggian 1479 mdpl serta pada 03°25’09.94” S dan 119°59’18.74” E ketinggian 1463 mdpl. Kata Kunci: Air Tanah, Metode Geolistrik, Kaki Gunung Latimojong    Abstract The focus of this activity is to help the community find out the potential of groundwater and determine groundwater drilling points using the geoelectric resistivity method as a solution to the water crisis at the foot of Mount Latimojong, Enrekang Regency. The location of the activity is at the foot of Mount Latimojong, Enrekang Regency with a total of 3 Schlumberger configurations. Data collection involves the government and local residents. There are 2 data needed for this activity, namely geological data and geophysical data.  Geological data was obtained from observations of rock structures above the surface and data on the depth of residents' wells around the activity location. Meanwhile, geophysical data was obtained using a resistivity meter. Data analysis was carried out using Microsoft Excel, Notepad, QGis, and IPI2WIN software to obtain a subsurface model. This model is interpreted using rock resistivity tables to map groundwater at the foot of Mount Latimojong, Enrekang Regency. After the interpretation is carried out, the groundwater drilling point is determined. The groundwater layer was found at 2 measurement points in a thin condition. This is because the rock formations at the foot of Mount Latimojong are dominated by igneous rocks originating from the Latimojong formation. The groundwater drilling point at the foot of Mount Latimojong is located at coordinates 03°25’00.00” S and 119°59’24.53” E at an altitude of 1479 mdpl and at 03°25’09.94” S and 119°59’18.74” E at an altitude of 1463 mdpl Keywords: Groundwater, Geoelectrical Method, Foot of Latimojong Mount