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| | Abstract | | Soil improvement has been widely used in constructions of detached houses. To estimate the improvement effects, it's very necessary to know the change of ground's stiffness before and after improvement. In the case of detached houses, there are some efficient surveying technique with low cost, such as S-wave seismic reflection (Kusumi etc., 2000), high precision surface wave exploration(Miura etc.,2012), and also the electric exploration, microtremor survey and seismic refraction survey (Chimoto and Yamanaka, 2013). In this paper, we applied the seismic refraction data waveform inversion (Yamanaka/Yamauchi, 2010 and Amrouche/Yamanaka, 2012) onto a soil improvement site in Toyama, and succeed to estimate its improvement effects by analyzing the change of ground's stiffness before and after improvement. |
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