Integrasi Metode Self Potential Dan Resistivitas Untuk Identifikasi Rembesan Air Pada Tanggul Lumpur Sidoarjo (LUSI)

Wasillah, Masyithah Noor (2017) Integrasi Metode Self Potential Dan Resistivitas Untuk Identifikasi Rembesan Air Pada Tanggul Lumpur Sidoarjo (LUSI). Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Tanggul LUSI telah berulang kali mengalami kegagalan yang mengakibatkan tanggul tersebut runtuh (collapse). Salah satu penyebab runtuhnya tanggul ialah adanya saturasi air pada tanggul melalui retakan atau pori-pori pada tanggul. Oleh karena itu perlu dilakukan identifikasi zona rembesan akibat retakan pada tanggul. Identifikasi penyebab kegagalan tanggul LUSI ini menggunakan metode Self Potential dan resistivitas yang tidak merusak lingkungan sekitar tanggul. Data yang diperoleh kemudian diolah dengan tujuan untuk mengidentifikasi rembesan air pada tanggul LUSI. Hasil dari penelitian ini menunjukkan terdapat beberapa kemungkinan adanya retakan yang mengakibatkan rembesan pada tanggul yang diukur pada kedalaman sekitar 5-50m. ======================================================================================== There has been several failures in the LUSI embankment that causing the embankment to be collapse. The cause of this incidence might be because of the presence of water saturation through fractures and pores in the embankment. Therefore, seepage identification is a very important thing to do in order to estimate the seepage zones due to fractures and pores in the embankment. Geophysical method has an important role in mapping seepage paths and monitoring the embankment. Self Potential and resistivity method are non-destructive technique that can be used in embankment monitoring. The data are obtained then processed in order to identify the seepage in the LUSI emabankment. The result of this research shows that there are several possible fractures as the cause of seepage in the LUSI emabakment at estimated depth of 5m-50m.

Item Type: Thesis (Undergraduate)
Uncontrolled Keywords: Inversi; Resistivitas; Self Potential; Inversion; Resistivity
Subjects: Q Science > QC Physics
Q Science > QE Geology > QE601 Geology, Structural
Divisions: Faculty of Mathematics and Science > Physics > 45201-(S1) Undergraduate Thesis
Depositing User: MASYITHAH NOOR WASILLAH
Date Deposited: 11 Apr 2017 02:35
Last Modified: 08 Mar 2019 03:19
URI: http://repository.its.ac.id/id/eprint/3374

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