Soil Classification Using Horizontal to Vertical Spectrum Ratio Methods on Scilab in Sendangmulyo, Semarang
Main Article Content
Abstract
Microtremor is ambient vibration on the surface ground by natural phenomena, human activities, etc. Microtremor data can be processed using various software such as Geopsy, easyHVSR, and MATLAB. Another alternative software to process microtremor data is Scilab. This research was conducted to classify the soil using HVSR methods on Scilab 6.1.0. in Sendangmulyo, Semarang. Data processing includes generating synthetic signals, coding the HVSR methods on Scilab, synthetic data testing, processing microtremor data, and mapping of natural frequency () and predominant period (). Coding tests are performed against synthetic signals and can display a pre-set . from the HVSR spectrum then processed to get the . The in Sendangmulyo, Semarang ranged from 1.280 Hz – 18.504 Hz, and the ranged from 0.054 s – 0,781 s. Based on the and , Sendangmulyo is composed of hard soil, medium soil, soft soil, and very soft soil.
Downloads
Article Details
This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.
References
Ambarsari, D. (2017). Analisis Mikrotremor dengan Metode HVSR untuk Mikrozonasi Kabupaten Gunungkidul Yogyakarta. Institut Teknologi Sepuluh Nopember.
Arifin, S. S., Mulyatno, B. S., Marjiyono, & Setianegara, R. (2014). Penentuan Zona Rawan Guncangan Bencana Gempa Bumi Berdasarkan Analisis Nilai Amplifikasi HVSR Mikrotremor dan Analisis Periode Dominan Daerah Liwa dan Sekitarnya. Geofisika Eksplorasi, 2(1), 30–40.
Haerudin, N., Alami, F., & Rustadi. (2019). Mikroseismik, Mikrotremor dan Microearthquake dalam Ilmu Kebumian. Pusaka Media.
Hidayat, E. (2013). Identifikasi Sesar Aktif Di Sepanjang Jalur Kali Garang, Semarang. Geologi Dan Sumberdaya Mineral, 23(1), 31–37.
Motamed, R., & Ghalandarzadeh, A. (2004). Seismic Microzonation Of Urmia City By Means Of Microtremor Measurements. 13th World Conference on Earthquake Engineering, 1052.
Nakamura, Y. (1989). A Method for Dynamic Characteristics Estimation of Subsurface using Microtremor on the Ground Surface. Quarterly Report of Railway Technical Research Institute, 30(1), 25–33.
Nakamura, Y. (2008). On the H/V spectrum. The 14th World Conference on Earthquake Engineering. http://117.120.50.114/papers/14wcee/14wcee_hv.pdf
Nakamura, Y. (2000). Clear identification of fundamental idea of Nakamura’s technique and its applications. 12th World Conference on Earthquake Engineering, Paper no. 2656. http://www.sdr.co.jp/papers/n_tech_and_application.pdf
Nubatonis, I., Sianturi, H. L., & Bernandus. (2017). Pemetaan Mikrozonasi Seismik di Desa Lili Kecamatan Fatuleu Kabupaten Kupang. Fisika Sains Dan Aplikasinya, 2(2), 50–57.
Okada, H. (2003). The Microtremor Survey Method. In The Microtremor Survey Method. Society of Exploration Geophysicist. https://doi.org/10.1190/1.9781560801740.fm
Pancawati, K. D. (2016). Identifikasi Kerentanan Dinding Bendungan Dengan Menggunakan Metode Mikroseismik (Studi Kasus Bendungan Jatibarang, Semarang). Universitas Negeri Semarang.
SESAME. (2004). Guidelines For The Implementation Of The H/V Spectral Ratio Technique On Ambient Vibrations. European Comission-Research General Directorate.