Korelasi Kadar Air Tanah dan Nilai Geo-Resistivitas Metode Geolistrik
Abstract
Air tanah adalah air yang bergerak di dalam bumi menempati ruang butir atau ruang pori. Identifikasi untuk mengetahui keberadaan lapisan penahan air pada kedalaman tertentu, dapat menggunakan metode geofisika yaitu metode geolistrik resistivitas dengan konfigurasi Wenner. Prinsip metode resistivitas adalah mengalirkan arus listrik ke dalam bumi dengan cara mengkontakkan dua elektroda arus, kemudian mengukur distribusi potensial yang dihasilkan. Untuk analisis kelengkapan 1D digunakan sounding data geolistrik dengan software IP2Win dan MATLAB untuk visualisasi data. Pembacaan resistivitas di lapangan dan kondisi eksisting di lapangan akan divalidasi menggunakan indeks uji laboratorium. Parameter yang dibutuhkan adalah nilai kadar air dan berat jenis, serta klasifikasi tanah berdasarkan distribusi ukuran butir. Hasil penelitian menunjukkan bahwa kadar air menurun sedangkan nilai resistivitas meningkat pada setiap lapisan dengan nilai kadar air terendah berkisar 41% - 72% dan nilai hambatan sekitar 16,4 m - 552 m.
Keywords
Full Text:
PDFReferences
Fahad Irfan Siddiqui and Syed Baharom Azhar Bin Syed Osman, 2012. Integrating Geo-Electrical and Geotechnical Data for Soil Characterization. International Journal of Applied Physics and Mathematics, Vol. 2, No. 2.
Fatoba. J.O, Alo J.O and Fakeye A.A, 2010. Geoelectric Imaging for Foundation Failure Investigation at Olabisi Onanbajo University (O.O.U) Minicampus, Ago Iwoye, South Western Nigeria, Journal of Applied Science Research, 6(12): 2192-2198
Carcione J. M and Ursin. B, 2007. Seismic Velocity / Eletrical Conductivity Relation, International Workshop Innovation in EM, Grav and Mag. Methods New Prospective for exploration Capri Italy April 15-18
Lateef. T.A and Adegoke. J.A, 2011, Geophysical investigation of Foundation Condition of a Site in Ikere - Ekiti State Nigeria. Australia Journal of Basic and applied Sciences 5(9): 1852-1857
Berit E.Danielson, 2011. The Applicability of Geoelectrical Methods in Pre-Investigation for construction in rock. Doctoral Thesis Engineering Geology Lund University Sweden
Balasubramanian A, 2017. Characteristics of Soil Profile. Centre for Advance Studies in Earth Science, University of Mysore, Mysore
Egwuonwu, G.N and Sule. P.O 2012. Geophysical Investigation Faillure of Learning Superstructur in Zaria Area, Northern Nigeria. Research Journal in Engineering and Applied Sciences 1(2) : 110-116
Egbai, J.C. 2011. A Combination of Electrical Resistivity and Seismic Refraction Surveys for Ground Water Exploration in Basement Region of Ifon, Ondo State, Nigeria. Australian Journal of Basic and Applied Sciences, 5(5): 1007-1016
Phogat V.K, V.S. Tomar and Rita Dahiya, 2016. Soil Physical Properties. Haryana Agricultural University, Hisar, Haryana 125004, India
Telford, W. M, Geldart, L.P and Sheriff, R.E, 1990. APPLIED GEOPHYSIC Second Edition. Cambridge University press New York. USA
Zakir. H and Alan. J.C, 2012. Relationship Among Porosity, Permeability, Electrical and Elastic Properties. RSI, 2600 South Gessner Road, Houston, TX 77063, USA.
Philip. K, Michael. B and Ian H, 2002. An Introduction to Geophysical Exploaration Third Edition. Blackwell Science Paris France : 184-195
Abdulrahman A.S, 2008. Integration of Surface Seismic Data with Geo-electric Data, Earth Sciences Department King Fahd Univesity of Petroleum & Minerals. SAUDI ARABIA s234817 @kfupm.edu.sa
Coulouma. G and Ursin. B, 2011. Combining Seismic and Electrical Methods for Predicting Bedrock Depth Along Mediterranean Soil Toposequence, American Journal Experts Editorial Certification (AJE) Geoderma 170(2): 39-47
Max A. Meju, Luis A. Gallardo and Adel K. Mohamed, 2003. Evidence Correlation Of Electrical Resistivity Andseismic Velocity In Heterogenius Near Surface Material. Geophysical Research Letter vol. 30 no.7
DOI: https://doi.org/10.33387/josae.v7i1.8011
Refbacks
- There are currently no refbacks.
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
| Journal Policies | Submissions | People | Information |
Editorial Office :
Journal Of Science and Engineering
Fakultas Teknik. Universitas Khairun
Jl. Jusuf Abdulrahman Kotak Pos 53 Gambesi, Kota Ternate, Indonesia.
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.