Penentuan Potensi Longsor Menggunakan Horizontal To Vertical Spectral Ratio Data Mikrotremor (Studi Kasus: Desa Kradinan, Kecamatan Pagerwojo, Tulungagung Jawa Timur)

Ramadhany, Bramantya (2019) Penentuan Potensi Longsor Menggunakan Horizontal To Vertical Spectral Ratio Data Mikrotremor (Studi Kasus: Desa Kradinan, Kecamatan Pagerwojo, Tulungagung Jawa Timur). Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Desa Kradinan Kec Pagerwojo Tulungagung merupakan desa yang berada di kaki pegunungan Wilis yang tersusun atas Formasi Mandalika. Desa ini berada diatas bukit dengan lembah yang curam menurun ke sungai. Kondisi inilah yang mengakibatkan sering terjadinya bencana tanah longsor. Oleh karena itu, penentuan potensi longsor di daerah ini dilakukan dengan menggunakan analisa horizontal to vertical spectral ratio (HVSR) dari data mikrotremor. Melalui parameter-parameter HVSR ini dapat diketahui bahwa area sisi kanan Desa Kradinan tergolong pada area rawan longsor yang ditunjukkan oleh nilai frekuensi dan percepatan minimum rendah serta amplifikasi, nilai indeks kerentanan tanah, dan ground shear strain yang tinggi, sedangkan sisi kiri Desa Kradinan diduga memiliki potensi longsor yang rendah.
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Kradinan in Pagerwojo, Tulungagung is a village located in the mountainous area of wilis and precisely in the middle of the lake which has steep valley that directs to the river. This geological condition causes the village to be landslide-prone area. The Estimation of Landslide-Prone area are conducted using Horizontal to Vertical Spectral Ratio (HVSR) analysis from Microtremor data. through this parameter, the right side of Kradinan village is landslide-prone shown by low natural frequency result, high amplification and high seismic vulnerability indices while the left side of the Kradinan village is tend to safe. This results however are strenghten by the result of
Minimum Ground Acceleration that shows the identic result

Item Type:	Thesis (Other)
Additional Information:	RSFi 551.22 Ram p-1 2019
Uncontrolled Keywords:	Amplifikasi, Frekuensi Natural, Indeks Kerentanan Tanah, Longsor, Mikrotremor,
Subjects:	Q Science > QE Geology > QE599 Landslides. Rockslides
Divisions:	Faculty of Mathematics and Science > Physics > 45201-(S1) Undergraduate Thesis
Depositing User:	Bramantya Ramadhany
Date Deposited:	25 Mar 2025 02:37
Last Modified:	25 Mar 2025 02:37
URI:	http://repository.its.ac.id/id/eprint/68661

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