1887

Abstract

Summary

The objective of this study is to find an efficient way to measure bedrock depth and geotechnical parameters through the estimation of shear wave velocity, Vs. The Norwegian Geo Test Sites (NGTS) initiative aims to establish five national test sites as field laboratory for testing innovative soil investigation and foundation methods. We have measured ambient seismic noise data as well as Multichannel Analysis of Surface Waves (MASW) data at two NGTS sites, Onsøy and Halden. The results of the shear-wave inversions are compared with ground-truth measurements from the two well-characterized sites. The results obtained with the passive seismic test and the MASW active test are quite similar despite the fact the passive method requires less time and equipment in the field.

Loading

Article metrics loading...

/content/papers/10.3997/2214-4609.201900379
2019-04-24
2024-04-20
Loading full text...

Full text loading...

References

  1. Aki, K.
    [1957]. Space and Time Spectra of Stationary Stochastic Waves, with Special Reference to Microtremors, Bull. Earthq. Res. Inst. Tokyo, 35, 415–457.
    [Google Scholar]
  2. Cho, I., Senna, S., Fujiwara, H.
    [2013]. Miniature array analysis of microtremors, Geophysics, 78, 13–23.
    [Google Scholar]
  3. Cho, I. and Senna, S.
    [2016]. Constructing a system to explore shallow velocity structures using a minitature microtermor array. Synthesiology, 9, 86–96.
    [Google Scholar]
  4. Garcia-Jerez, A., Pina-Flores, J., Sanchez-Sesma, F.J., Luzon, F., Perton, M.
    [2016]. A computer code for forward calculation and inversion of the H/V spectral ratio under the diffuse field assumption. Computers & Geosciences, 97, 67–78
    [Google Scholar]
  5. NogoshiM. and IgarashiT.
    [1971]. On the amplitude characteristics of microtremor. Journal of seismological Society of Japan, 24, 26–40.
    [Google Scholar]
  6. Nakamura, Y.
    [1989]. A method for dynamic characteristics estimation of subsurface using microtremor on the ground surface. Quaterly Report of the Railway Tech. Research Inst., 30, 25–30.
    [Google Scholar]
  7. Park, C.B., Miller, R.D., Xia, J.
    [1999]. Multichannel analysis of surface waves, Geophysics64, 800–808.
    [Google Scholar]
http://instance.metastore.ingenta.com/content/papers/10.3997/2214-4609.201900379
Loading
/content/papers/10.3997/2214-4609.201900379
Loading

Data & Media loading...

This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error