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Application of Geophysical Survey to the Geological Engineering Model for the Effective Detection in Foundation of Stone Relics  

Kim, Man-Il (Geological Environment Division, Korea Institute of Geoscience and Mineral Resource)
Lee, Chang-Joo (Dept. of Earth and Environmental Sciences, Andong National University)
Kim, Jong-Tae (Dept. of Earth and Environmental Sciences, Andong National University)
Kim, Ji-Soo (Dept. of Earth and Environmental Sciences, Chungbuk National University)
Kim, Sa-Dug (Conservation Science Division, National Research Institute of Cultural Heritage)
Jeong, Gyo-Cheol (Dept. of Earth and Environmental Sciences, Andong National University)
Publication Information
The Journal of Engineering Geology / v.18, no.4, 2008 , pp. 537-543 More about this Journal
Abstract
To effectively delineate the foundation of stone relics by GPR and seismic refraction methods, a geological engineering model was constructed with alternating layer of soil and gravel to a depth of 3 m. This study was aimed at mapping the boundaries of model ground structure and interfaces of alternating layer using the various frequency antenna in GPR survey and seismic velocities. Compared to the resolution from the high frequency antenna, the image resolution from the survey using 100 Hz antenna is the lower, but with the deeper image coverage. On the contrast, the deeper structure was not mapped in the higher frequency data due to higher absorption effect, but the shallow layered zone was distinctively resolved. Therefore subsurface images were effectively provided by integrating the data with 100 MHz and 450 MHz antennas for the deep and shallow structures, respectively. Regarding the seismic refraction data, the boundaries of the model and interface of the alternating layers were not successfully mapped due to the limit of the survey length. However, the equivalent contours of low velocity extended deep as considerable velocity contrasts with surrounding ground.
Keywords
geological engineering model; GPR survey; seismic refraction survey;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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