Analisa Mikrotremor Menggunakan Metode HVSR untuk Mengetahui Karakteristik Bawah Permukaan Manifestasi Panas Bumi Diwak dan Derekan Berdasarkan Nilai Vp

Vithya Arintalofa; Gatot Yulianto; Udi Harmoko

doi:10.14710/jebt.2020.9276

DOI: https://doi.org/10.14710/jebt.2020.9276

Analisa Mikrotremor Menggunakan Metode HVSR untuk Mengetahui Karakteristik Bawah Permukaan Manifestasi Panas Bumi Diwak dan Derekan Berdasarkan Nilai Vp

Vithya Arintalofa¹ , Gatot Yulianto², Udi Harmoko²

¹Magister Energi, Sekolah Pascasarjana, Universitas Diponegoro, Indonesia

²Departemen Fisika, Fakultas Sains dan Matematika, Universitas Diponegoro, Indonesia

This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.

Citation Format:

Abstract

Pengukuran Mikrotremor merupakan pengukuran seismik pasif untuk merekam getaran yang dihasilkan oleh aktivitas bumi ataupun aktivitas manusia, biasanya metode ini digunakan untuk memperkirakan tingkat kerusakan yang timbul akibat gempa bumi dan juga dapat digunakan untuk mengetahui kondisi struktur bawah permukaan berdasarkan frekuensi dominannya dan faktor amplifikasinya. Dalam analisis mikrotremor spektrum komponen horizontal dibandingkan terhadap komponen vertikal atau dikenal dengan metode HVSR. Parameter penting yang dihasilkan dari metode HVSR yaitu frekuensi natural dan amplifikasi. Dari hasil penelitian didapatkan P=persebaran nilai frekuensi dominan (f_o) yang didapatkan dari hasil pengolahan data mikrotremor pada area manifestasi panas bumi Diwak dan Derekan berkisar antara 0,08 Hz sampai dengan 9,29 Hz, persebaran nilai faktor amplifikasi (A_o) bernilai antara 0,03 hingga dengan 7,07, sedangkan inversi kurva H/V menghasilkan nilai kecepatan gelombang P (V_P) dan gelombang S (V_S) dimana nilai V_P berkisar antara 390 m/s sampai dengan 4.993 m/s dan nilai V_S berada pada kisaran 190 m/s hingga 3.054 m/s.

Fulltext View|Download

Keywords: Amplifikasi; Metode HVSR; Mikrotremor; Vp,;Vs; Frekuensi Dominan

Article Metrics:

Article Info

Section: Articles

Language : ID

In Vol 1, No 2 (2020): Juli 2020

Recent articles

Analisa Mikrotremor Menggunakan Metode HVSR untuk Mengetahui Karakteristik Bawah Permukaan Manifestasi Panas Bumi Diwak dan Derekan Berdasarkan Nilai Vp Pengaruh Katalis Genteng Tanah Liat dalam Proses Produksi Bahan Bakar Cair dari Limbah Ban Bekas dengan Proses Pirolisis Efektivitas Limbah Kulit Kering Nanas Madu (Ananas Comosus l.Merr) untuk Pembuatan Bioetanol dengan Proses Fermentasi dan Distilasi More recent articles

Direktur Jenderal Energi Baru Terbarukan dan Konservasi Energi Kementerian Energi dan Sumber Daya Mineral Republik Indonesia. (2016). Buku Statistik Energi Baru Terbarukan dan Konservasi Energi Tahun 2016. Jakarta. http://ebtke.esdm.go.id/post/2016/02/02/1105/statistik.ebtke.2016
Elders, W. A., & Moore, J. N. (2016). Geology of geothermal resources. In R. DiPippo (Ed.), Geothermal Power Generation: Developments and Innovation (pp. 7–32). Elsevier Ltd. https://doi.org/10.1016/B978-0-08-100337-4.00002-4
Gupta, H., & Roy, S. (2007). Geothermal Energy: An altermative resource for the 21st century. Elsevier B.V
Hobiger, M., & Bard, P. (2011). Polarization of Surface Waves: Characterization, inversion and application to seismic hazard assessment. Retrieved from https://tel.archives-ouvertes.fr/tel-00577887
Ilmi, S., Harmoko, U., dan Widada, S. (2014). Interpretasi Bawah Permukaan Sistem Panas Bumi Diwak dan Derekan Berdasarkan Data Gravitasi. Youngster Physics Journal Vol. 3 No.2, Hal 165-170
Kanai, K. (1983). Engineering Seismology. University of Tokyo Press. Tokyo, Japan
Kasbani. (2009). Tipe Sistem Panas Bumi Di Indonesia Dan Estimasi Potensi Energinya, 64–73
Nakamura, Y. (1989). A method for dynamic characteristics estimation of subsurface using microtremor on the ground surface. Quarterly Report of the Railway Technical Reasearch Institute.
Nakamura, Y. (2000). Clear identification of fundamental idea of Nakamura’s technique and its applications. Proceedings of the 12th World Conference on Earthquake Engineering
Nikmah, I., dan Harmoko, U. (2014). Studi Distribusi Temperatur Permukaan Dangkal, Emisi Gas Karbondioksida dan Pola Aliran Fluida untuk Mengklarifikasi Sistem Panas Bumi di Daerah Manifestasi Diwak-Derekan, Jawa Tengah. Youngster Physics Journal. vol. 2. no. 1. hal. 49-54. Semarang
Partono, Windu., Manshyur, I., Sri Prabandiyani, R.W., Syamsul, M., 2013. Aplikasi Metode HVSR pada Perhitungan Faktor Amplifikasi Tanah di Kota Semarang. Semarang: Universitas Diponegoro
SESAME Project, “Guidelines for the Implementation of the H/V Spectral Ratio Technique on Ambient Vibrations Measurements, Processing and Interpretation”, December., 2004
Sudarmawan, D. (2019). ‘Pemodelan 3D Area Manifestasi Panas Bumi Sangubanyu, Berdasarkan Data Mikrotremor’, Tesis, Magister Energi, Universitas Diponegoro, Semarang
Sungkono, dan Santosa, B. J. (2011). Karakterisasi kurva horizontal-to-vertical spectral ratio: kajian literatur dan permodelan. Jurnal Neutrino, 4(1), 1–15
Thanden, R. E., Sumadirdja, H., Richards, P. W., Sutisna, K., Amin, T. C. (1996). Direktorat Geologi Bandung. Peta Geologi Lembar Magelang dan Semarang, Jawa. Skala 1:100.000. Bandung
Tian, B., Xu, P., Ling, S., Xu, X., Du, J., & Pang, Z. (2016). Application of the initial model feature of microtremor to investigate a part of the geothermal field of Jiangsu region in China. Environmental Earth Sciences, 75(18), 1– 12
Toth, A., & Bobok, E. (2017). What Is Geothermal Energy? In Flow and Heat Transfer in Geothermal Systems (1st ed., pp. 1–19). Elsevier. https://doi.org/10.1016/B978-0-12-800277-3.00001-3
Undang-undang Republik Indonesia Nomor 21 Tahun 2014, Tentang Panas Bumi, 17 September 2014. Lembaran Negara Republik Indonesia Tahun 2014 Nomor 217. Jakarta
van Bemmelen, R. W. (1949). Fisiografi Jawa Tengah (1A ed.). Netherlands: Government Printing Office

Last update:

No citation recorded.

Last update:

No citation recorded.

This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.

The authors submitting a manuscript do so on the understanding that if accepted for publication, the article's copyright shall be assigned to Jurnal Energi Baru dan Terbarukan (JEBT) and Master Program of Energy, Universitas Diponegoro. Copyright encompasses rights to reproduce and deliver the article in all forms and media, including reprints, photographs, microfilms, and other similar reproductions and translations.

As an article writer, the authors have the right to use their articles for various purposes, including by institutions that employ authors or institutions that provide funding for research. Author rights are granted without special permission.

Authors who publish a paper at JEBT have the broad right to use their work for teaching and scientific purposes without the need to ask permission, including used for (i) teaching in the author's class or institution, (ii) presentation at meetings or conferences and distributing copies to participants ; (iii) training conducted by the author or author's institution; (iv) distribution to colleagues for research use; (v) use in the compilation of subsequent authors' works; (vi) inclusion in a thesis or dissertation; (vi) reuse of part of the article in another work (with citation); (vii) preparation of derivative works (with citation); (viii) voluntary posting on open websites operated by authors or author institutions for scientific purposes (following the CC BY-SA License).

Reproduce any part of this journal, its storage in the database, or its transmission by all forms of media is permitted and does not need written permission from the JEBT journal. However, it should be cited as an honor in academic manners by providing appropriate credit (provide article citation or content), links to the license, and indicating if there are changes.

JEBT journal and the Master Program of Energy, Universitas Diponegoro, and the Editor make every effort to ensure that there are no data, opinions, or false or misleading statements published in the JEBT journal. However, the article's content is each author's sole and exclusive responsibility.

The Copyright Transfer Form can be downloaded here: [Copyright Transfer Form]. The copyright form should be signed originally and sent to the Editor via email or fax.