1-DIMENSIONAL SHEAR WAVE VELOCITY ANALYSIS OF THE PHASE II SITE, AHMADU BELLO UNIVERSITY, ZARIA USING MULTI-CHANNEL ANALYSIS OF SURFACE WAVES

  • Abubakar Fahad
  • Ahmed I. Isiaka
  • Aminu A. Lawal
  • K. M. Lawal
Keywords: Dispersion Spectrum, Fundamental Mode, Rayleigh wave, Fourier Transformation

Abstract

The Multichannel Analysis of Surface Waves (MASW) is an effective method for near-surface analysis. The method was employed at the Ahmadu Bello University, Zaria (Phase II site) to determine the shear wave velocity of the site. The dispersive characteristics of Rayleigh type of the surface waves was used to infer the shear wave velocity of the site down to 30 m (Vs30). The average Vs30 obtained of the site varies between 236.6 m/s to 294.5 m/s. Therefore, the soil of the site is stiff

References

Anand, J. and Parul, B. (2018). Site characterization using Multi-channel Analysis of Surface Waves at various locations in Kumaon Himalayas, India. Journal of Industrial Geophysics Union. vol.22, no.3, pp:265-278.

Ashraf, M.A.M., Kumar, N.S., Yusoh, R., Hazreek, Z.A.M., Aziman, M. (2017). Site classification using Multichannel Analysis of Surface Wave (MASW) method on Soft and Hard Ground. IOP Conf. Series: Journal of Physics: Conf. Series 995. Doi: 10.1088/1742-6596/995/1/012108.

BSSC (2003). NEHRP recommended provisions for seismic regulations for new buildings and other structures (FEMA 450), Part 1: Provisions: Building Seismic Safety Council, National Institute of Building Sciences.

Eigbefo, C. (1978). Hydrogeology of the Kubani Drainage Basin, Zaria. Unpublished M. Sc. Thesis, Department of Geology, Ahmadu Bello University, Zaria.

Egwuonwu G.N. and Osazuwa, I.B. (2011). Geophysical and geotechnical investigation of the origin of structural instabilities shown on some low rise buildings in Zaria, North-western Nigeria. The Pacific journal of science and technology. Vol. 12, No. 2.

Kearey, P. and Vine, F.J. (1996). Global Tectonics (2nd edn). Blackwell Science, Oxford.

Long, M. and Donohue, S. (2007). In situ shear wave velocity from Multichannel Analysis of Surface Waves (MASW) tests at eight Norwegian research sites. Can. Geotechnical journal. Vol 44.

McCurry P. (1970). The Geology of Degree Sheet 21 Zaria. Unpublished M.Sc. Theses, Ahmadu Bello University Zaria 1970:20-22.

Neelima, D.S. and Rao, K.S. (2008). Seismic site characterization in Delhi region using Multi channel Analysis of Shear Wave Velocity (MASW) Testing. EJGE vol. 13, Bund.L pp.17.

Park, C. B., Miller, R. D. and Xia, J. (1997). Summary report on surface-wave project at Kansas Geological Survey (KGS). [Open-file Report]. Lawrence, KS: Kansas Geological Survey.

Park, C. B., Miller, R. D. and Xia, J. (1999). Multichannel analysis of surface waves. Geophysics, 64 (3), pp 800-808.

Park, C.B., Miller, R.D. and Miura, H. (2002). Optimum field parameters of an MASW survey. Expanded Abstracts, SEG-J, Tokyo, May 22-23, 2002.

Truswell, J.F. and Cope, R.N. (1963). The geology of parts of Niger and Zaria Provinces, Northern Nigeria. Geological Survey, Nigeria. Bull. 29.

Xia, J., Miller, R.D. and Park, C.B. (1999). Estimation of near-surface shear-wave velocity by inversion of Rayleigh waves. Geophysics, vol. 64, No. 3 p691-700.

Xia, J., Miller, R. D., Park, C. B., Hunter, J. A., Harris, J. B. and Ivanov, J. (2002). Comparing shear-wave velocity profiles from multichannel analysis of surface wave with borehole measurements. Soil Dynamics and Earthquake Engineering, 22 (3), 181-190.

Yilmaz, OZ (2015). Engineering Seismology with Applications to Geotechnical Engineering. Society of Exploration Geophysicists. The international society of applied geophysics. Tulsa, Oklahoma, U.S.A. Investigation in Geophysics Series No. 17.

Published
2023-04-11
How to Cite
FahadA., IsiakaA. I., LawalA. A., & LawalK. M. (2023). 1-DIMENSIONAL SHEAR WAVE VELOCITY ANALYSIS OF THE PHASE II SITE, AHMADU BELLO UNIVERSITY, ZARIA USING MULTI-CHANNEL ANALYSIS OF SURFACE WAVES. FUDMA JOURNAL OF SCIENCES, 3(3), 436 - 443. Retrieved from https://fjs.fudutsinma.edu.ng/index.php/fjs/article/view/1588

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