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Asisah, Tina
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Astronomy Computer Science & IT Earth & Planetary Sciences Materials Science & Nanotechnology Physics

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Identifikasi Kestabilan Tanggul Waduk Desa Kemuja Menggunakan Metode Geolistrik Resistivitas Konfigurasi Wenner Asisah, Tina; Widyaningrum, Yekti; Indriawati, Anisa
Jurnal Riset Fisika Indonesia Vol 5 No 1 (2024): Desember 2024
Publisher : Jurusan Fisika, Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jrfi.v5i1.4942

Abstract

Kemuja Village Reservoir is one of the reservoirs located in Kemuja Village, West Mendo District, Bangka Regency, which was built in 2015. On the sides of the Kemuja Village Reservoir, there are embankments that are used to prevent flooding of rice fields. Based on the initial survey, the height of the embankment from the ground is ±2.6 m and the water level is ±1 m above the surface. This study aims to identify the stability of the Kemuja Village reservoir embankment based on 2D modeling using the Wenner configuration resistivity geoelectric method with a spacing of 8 m between electrodes. Based on 2D modeling, the Kemuja Village reservoir embankment has good stability on all tracks, except on track 1 at a depth of 0 m - 1 m with a measurement distance of 10 m - 14 m, track 2 at a depth of 0 m - 1 m with a measurement distance of 36 m - 40 m, track 3 at a depth of 0.5 m - 2 m with a measurement distance of 6 m - 8 m; 0 m - 1.5 m with a measurement distance of 12 m - 16 m and 0 m - 2 m with a measurement distance of 28 m - 30 m, traverse 4 at a depth of 0 m - 1 m with a measurement distance of 8 m - 10 m and 0 m - 2 m with a measurement distance of 44 m - 48 m.
IDENTIFIKASI KETIDAKSTABILAN TANGGUL WADUK DESA KEMUJA KABUPATEN BANGKA MENGGUNAKAN METODE SELF-POTENTIAL (SP) Amelia, Dea; Asisah, Tina; Santya, Indah; Kusmita, Tri; widyaningrum, yekti
JOURNAL ONLINE OF PHYSICS Vol. 9 No. 2 (2024): JOP (Journal Online of Physics) Vol 9 No 2
Publisher : Prodi Fisika FST UNJA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/jop.v9i2.8266

Abstract

Waduk merupakan suatu bangunan buatan yang berfungsi untuk menampung air. Penyebab utama yang dapat menyebabkan kerusakan pada badan tanggul biasanya adalah keruntuhan tanggul yang disebabkan oleh ketidakstabilan tanggul tersebut. Ketidakstabilan tanggul dapat terjadi karena adanya rembesan air yang menyebabkan tanah menjadi jenuh air. Tanggul Waduk Desa Kemuja hingga saat ini terdapat beberapa retakan pada badan tanggul yang kemungkinan dapat menyebabkan keruntuhan tanggul apabila tidak ditangani lebih lanjut. Penelitian ini mengidentifikasi kondisi lapisan tanah pada tanggul agar dapat mengetahui ketidakstabilan tanggul Waduk di Desa Kemuja menggunakan metode geolistrik self-potential (SP). Penelitian ini dilakukan dengan mengukur 3 lintasan penelitian. Berdasarkan hasil penelitian, pada lintasan 1 terdapat ketidakstabilan tanggul pada jarak 110 m dengan nilai potensial sebesar -11,1 mV dan pada jarak 125 m sebesar -10,8 mV, pada lintasan 2 terdapat pada jarak 155 m sebesar -1,3 mV, dan pada lintasan 3 terdapat pada jarak 55 m sebesar -4,1 mV. Ketidakstabilan tanggul menunjukan anomali negatif ketika rembesan air masuk ke tanggul. Zona ini dapat menyebabkan keruntuhan sehingga dapat mengganggu kestabilan tanggul. Berdasarkan hasil yang diperoleh, dapat disimpulkan bahwa metode self-potential (SP) dapat digunakan sebagai solusi tercepat untuk mencegah kerusakan tanggul berdasarkan identifikasi ketidakstabilan tanggul.
Identifikasi Kestabilan Tanggul Waduk Desa Kemuja Menggunakan Metode Geolistrik Resistivitas Konfigurasi Wenner Asisah, Tina; Widyaningrum, Yekti; Indriawati, Anisa
Jurnal Riset Fisika Indonesia Vol 5 No 1 (2024): Desember 2024
Publisher : Jurusan Fisika, Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jrfi.v5i1.4942

Abstract

Kemuja Village Reservoir is one of the reservoirs located in Kemuja Village, West Mendo District, Bangka Regency, which was built in 2015. On the sides of the Kemuja Village Reservoir, there are embankments that are used to prevent flooding of rice fields. Based on the initial survey, the height of the embankment from the ground is ±2.6 m and the water level is ±1 m above the surface. This study aims to identify the stability of the Kemuja Village reservoir embankment based on 2D modeling using the Wenner configuration resistivity geoelectric method with a spacing of 8 m between electrodes. Based on 2D modeling, the Kemuja Village reservoir embankment has good stability on all tracks, except on track 1 at a depth of 0 m - 1 m with a measurement distance of 10 m - 14 m, track 2 at a depth of 0 m - 1 m with a measurement distance of 36 m - 40 m, track 3 at a depth of 0.5 m - 2 m with a measurement distance of 6 m - 8 m; 0 m - 1.5 m with a measurement distance of 12 m - 16 m and 0 m - 2 m with a measurement distance of 28 m - 30 m, traverse 4 at a depth of 0 m - 1 m with a measurement distance of 8 m - 10 m and 0 m - 2 m with a measurement distance of 44 m - 48 m.
Co-Authors Dea Amelia, Dea Indriawati, Anisa Santya, Indah Tri Kusmita Widyaningrum, Yekti