Wave Equation Modelling for the Shallow Seismic Refraction Method

1982 ◽  
Vol 13 (2) ◽  
pp. 26-34 ◽  
Author(s):  
P. J. Hatherly
Keyword(s):  
Wave Equation ◽  
Seismic Refraction ◽  
Shallow Seismic ◽  
Equation Modelling ◽  
Refraction Method ◽  
Seismic Refraction Method

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

scholarly journals A comparative study for structural bedrock delineation by using conventional geophysical methods

2001 ◽  
Vol 34 (4) ◽  
pp. 1301
Author(s):  
Τ. Δ. ΠΑΠΑΔΟΠΟΥΛΟΣ ◽  
I. A. ΑΛΕΞΟΠΟΥΛΟΣ ◽  
Π. Ι. ΚΑΜΠΟΥΡΗΣ
Keyword(s):  
Seismic Refraction ◽  
Geophysical Methods ◽  
Clear Distinction ◽  
The Past ◽  
Tectonic Processes ◽  
Refraction Method ◽  
Limestone Bedrock ◽  
Modern Analysis ◽  
Seismic Refraction Method ◽  
Effective Design

In this paper is examined the potential and effectiveness of two conventional geophysical methods in geotechnical research. The seismic refraction method that has been successfully used in the past for subsurface bedrock delineation in foundation projects, failed to indicate clear distinction between flysch and limestone bedrock material in the area under investigation. This failure is due to the macro-anisotropy structure of the limestone that resulted from joints, tectonic processes or/and karstic phenomena and later fillings of the voids with argillaceous material. The geoelectrical method of vertical sounding, on the other hand, although provided a clear distinction for the bedrock characterization, failed to distinguish the overburden cover from the underlain flysch formation. Finally, in this paper it is shown that for a successful application of geophysical work in  geotechnical research, it is required effective design, utilization of modern analysis methods and handling more than geophysical methods.

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