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http://dx.doi.org/10.5467/JKESS.2011.32.6.674

A Comparison Study on Near-surface High-resolution Seismic Data by Different Source and Geophone Types  

Kim, Hyoung-Soo (Energy Resources Engineering, Jungwon University)
Keehm, Young-Seuk (Kongju National University, Department of Geoenvironmental Sciences)
Publication Information
Journal of the Korean earth science society / v.32, no.6, 2011 , pp. 674-686 More about this Journal
Abstract
Choosing a seismic source and geophone type including a coupling method can be the most important factor in shallow seismic surveys. We studied the characteristics of seismic signals by analyzing 6 different seismic data sets that collected from several sources and geophone conditions. Geophones attached to weight plate (1.8 kg) can be easily and economically installed on the paved road where geophones with spikes would cause the coupling problem. In addition, experiments in this study revealed that a small handy hammer can be used as a seismic source by striking the paved road to generate the seismic signals within 200 ms two-way travel time. Attaching weight plates to geophones may change the geophone response curve which generally depends on the geophone mass, but the change seems not to give significant differences in the first arrival of refracted wave and in the pattern of reflection events. Consequently, using weight plates on paved roads can be an efficient and cost-saving method in the near-surface high-resolution seismic surveys.
Keywords
high-resolution seismic survey; seismic source; geophones; weight plate; paved roads;
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