Identification of landslide slip-surface and its shear strength: A new application for shallow seismic refraction method

2010 ◽  
Vol 76 (2) ◽  
pp. 175-180 ◽  
Author(s):  
N. H. Al-Saigh ◽  
Th. H. Al-Dabbagh
Keyword(s):  
Shear Strength ◽  
Slip Surface ◽  
Seismic Refraction ◽  
Shallow Seismic ◽  
Refraction Method ◽  
Seismic Refraction Method

scholarly journals Identifikasi Ketebalan Lapisan Lapuk pada Area Rawan Longsor Menggunakan Metode Seismik Refraksi (Studi Kasus: Desa Kalirejo Kabupaten Kulonprogo)

2020 ◽  
Vol 8 (2) ◽  
pp. 141-150
Author(s):  
Muhardi Muhardi ◽  
◽  
Radhitya Perdhana ◽  
Muhammad Reza July Utama ◽  
Mitranikasih Laia ◽  
...  
Keyword(s):  
Wave Propagation ◽  
Layer Thickness ◽  
Seismic Wave ◽  
Slip Surface ◽  
Seismic Refraction ◽  
Seismic Wave Propagation ◽  
Triggering Factors ◽  
Refraction Method ◽  
On Line ◽  
Seismic Refraction Method

Kalirejo Village, Pengasih District, Kulonprogo Regency, is an area that is prone to landslides. The purpose of this study is to identify the weathering layer thickness, which is one of the triggering factors for landslides. This study was conducted using the seismic refraction method by applying two lines. Line 1 uses 24 geophones, has a distance of 1 meter between geophones, while Line 2 uses 24 geophones, has a distance of 2 meters between geophones. The results showed that the velocity of seismic wave propagation in the weathering layer for Line 1 was 400 m/s, and in the slip surface was 2,300 m/s. The weathering layer thickness on Line 1 is 7.6 - 9.8 meters and the slope is steep so that this location is predicted to have a potential landslide. While the velocity of seismic wave propagation in the weathering layer for Line 2 was 300 m/s, and in the slip surface was 2,200 m/s. The weathering layer thickness on Line 2 is at less than 2 meters, so this location is predicted not to have a landslide potential even though the slope is steep

scholarly journals Comparison of seismic sources for shallow seismic: sledgehammer and pyrotechnics

2015 ◽  
Vol 4 (1) ◽  
pp. 39-45
Author(s):  
Aleksander Brom ◽  
Iwona Stan-Kłeczek
Keyword(s):  
Seismic Wave ◽  
Seismic Refraction ◽  
Seismic Source ◽  
Frequency Spectra ◽  
Seismic Engineering ◽  
Sound Effects ◽  
Shallow Seismic ◽  
Refraction Method ◽  
Seismic Refraction Method ◽  
Seismic Measurements

AbstractThe pyrotechnic materials are one of the types of the explosives materials which produce thermal, luminous or sound effects, gas, smoke and their combination as a result of a self-sustaining chemical reaction. Therefore, pyrotechnics can be used as a seismic source that is designed to release accumulated energy in a form of seismic wave recorded by tremor sensors (geophones) after its passage through the rock mass. The aim of this paper was to determine the utility of pyrotechnics for shallow seismic engineering. The work presented comparing the conventional method of seismic wave excitation for seismic refraction method like plate and hammer and activating of firecrackers on the surface. The energy released by various sources and frequency spectra was compared for the two types of sources. The obtained results did not determine which sources gave the better results but showed very interesting aspects of using pyrotechnics in seismic measurements for example the use of pyrotechnic materials in MASW.

Velocity inversion and the shallow seismic refraction method

1979 ◽  
Vol 17 (2) ◽  
pp. 125-141 ◽  
Author(s):  
Robert J. Whiteley ◽  
Stewart A. Greenhalgh
Keyword(s):  
Seismic Refraction ◽  
Velocity Inversion ◽  
Shallow Seismic ◽  
Refraction Method ◽  
Seismic Refraction Method
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