Penerapan Continuos Wavelet Transform (Cwt) Pada Data Self-Potential Studi Kasus Tanggul Lumpur Sidoarjo

Haf, Rayhan Syauqiya (2017) Penerapan Continuos Wavelet Transform (Cwt) Pada Data Self-Potential Studi Kasus Tanggul Lumpur Sidoarjo. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Peristiwa semburan panas lumpur Sidoarjo yang terletak di Kecamatan Porong, Kabupaten Sidoarjo telah memasuki usia 11 tahun. Beragam peristiwa secara fisik telah terjadi seperti rusaknya tanggul yang terjadi akibat adanya saturasi air melalui retakan atau pori-pori tanggul. Berbagai upaya telah dilakukan untuk mengidentifikasi zona rembesan tanggul. Salah satunya dengan menerapkan metode Continuous Wavelet Transform (CWT) pada data Self-Potential (SP). Data yang diperoleh kemudian diolah dengan tujuan untuk mengetahui aplikasi metode CWT pada analisa data SP serta menentukan posisi dan kedalaman anomali. Dari hasil analisa data SP diketahui bahwa metode CWT dapat mengidentifikasi posisi dan kedalaman anomali tanggul Lumpur Sidoarjo serta didapatkan beberapa anomali yang dapat menyebabkan rembesan. Pada Lintasan 1 terdapat 2 anomali, Lintasan 2 terdapat 2 anomali, Lintasan 3 terdapat 3 anomali dan Lintasan 5 terdapat 1 anomali. ========================================================================================= Lapindo hot mudflow has been overflowing for over11 years in district of Porong, Sidoarjo. A number of physical breakdown has occurred along the mud embankment mainly due to water saturation within the structure cracks and pores. Several method has already been deployed to identify the zone of seepage in the embankment. One of them use Continous Wavelet Transform (CWT) at the Self-Potential (SP)data. The acquired data are then processed to analyze whether or not the CWT method employed at the SP data could determine the position and depth of the anomaly. Based on the analyzed data, the method used in this research is able to ascertain both of the position and depth of the anomaly while also finding out several anomalies within the the tested region. There are 2 anomalies found on the line 1, 2 anomalies on the line 2, 3 anomalies on the line 3, and 1 anomaly in line 5.

Item Type: Thesis (Undergraduate)
Uncontrolled Keywords: Anomali, Continuous Wavelet Transform, PoissonKernel, Self-Potential
Subjects: Q Science > QC Physics
Divisions: Faculty of Mathematics and Science > Physics > 45201-(S1) Undergraduate Thesis
Depositing User: Rayhan Syauqiya Haf
Date Deposited: 06 Oct 2017 04:11
Last Modified: 08 Mar 2019 02:43
URI: https://repository.its.ac.id/id/eprint/46071

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