Comparison of a Christchurch-specific CPT-Vs correlation and Vs derived from surface wave analysis for strong motion station velocity characterisation
DOI:
https://doi.org/10.5459/bnzsee.48.2.81-91Abstract
The Christchurch-specific empirical correlation between shear wave velocity (Vs) and cone penetration test (CPT) data developed by McGann et al. [1-3] for the non-gravel soils of the Christchurch and Springston Formations is evaluated through comparison to Vs profiles obtained using surface wave analysis techniques at twelve Christchurch strong motion stations. These comparisons highlight the similarities and differences between the Vs profiles obtained from each approach, and allow for an assessment of the relative strengths and weaknesses of each. It is shown that, with known differences, the results of the surface wave analysis and CPT correlation compare well in terms of their independently obtained Vs magnitudes. The sources of the differences between the results of each method are identified and discussed.
References
McGann CR, Bradley BA, Taylor ML, Wotherspoon LM and Cubrinovski M (2015a). “Applicability of Existing Empirical Shear Wave Velocity Correlations to Seismic Cone Penetration Test Data in Christchurch New Zealand”. Soil Dynamics and Earthquake Engineering, 75: 76–86. DOI: https://doi.org/10.1016/j.soildyn.2015.03.021
McGann CR, Bradley BA, Taylor ML, Wotherspoon LM and Cubrinovski M (2015b). “Development of an Empirical Correlation for Predicting Shear Wave Velocity of Christchurch Soils from Cone Penetration Test Data”. Soil Dynamics and Earthquake Engineering, 75: 66–85. DOI: https://doi.org/10.1016/j.soildyn.2015.03.023
McGann CR, Bradley BA, Cubrinovski M, Taylor ML and Wotherspoon LM (2014). “Development and Evaluation of CPT-Vs Correlation for Canterbury New Zealand Soils of the Shallow Christchurch and Springston Formations.” Research Report No 2014-01, Department of Civil and Natural Resources Engineering, University of Canterbury, Christchurch, 99 pp.
Woods RD (1978). “Measurement of Dynamic Soil Properties, State of the Art Report”. Proceedings of the ASCE Specialty Conference on Earthquake Engineering & Soil Dynamics, Vol. 1, California Institute of Technology, Pasadena, USA, 91–178.
Woods RD (1994). “Borehole Methods in Shallow Seismic Exploration”. In Geophysical Characterization of Sites, ISSMFE Technical Committee #10, R Woods, ed., New Delhi, India, 91–100.
Nazarian S and Stokoe II KH (1984). “In-Situ Shear Wave Velocities from Spectral Analysis of Surface Wave Tests”. Proceedings of the 8th World Conference on Earthquake Engineering, San Francisco, CA, 31–38.
Park CB, Miller RD and Xia J (1999). “Multichannel Analysis of Surface Waves”. Geophysics, 64(3): 800–880. DOI: https://doi.org/10.1190/1.1444590
Louie JN (2001). “Faster, Better Shear Wave Velocityto 100 meters Depth from Refraction Microtremor Arrays”. Bulletin of the Seismological Society of America, 91(2): 347–364. DOI: https://doi.org/10.1785/0120000098
Okada H (2003). “The Microtremor Survey Method”. (K. Suto, trans.), SEG Geophysical Monograph Series No. 12, Society of Exploration Geophysicists. DOI: https://doi.org/10.1190/1.9781560801740
Park CB and Miller RD (2008). “Roadside Passive Multichannel Analysis ofSurface Waves (MASW)”. Journal of Environmental and Engineering Geophysics, 13(1): 1–13. DOI: https://doi.org/10.2113/JEEG13.1.1
Tokimatsu K, Shinzawa K and Kuwayama S (1992). “Use of short-period microtremors for Vs profiling”. Journal of Geotechnical Engineering, 118(10): 1544–1558. DOI: https://doi.org/10.1061/(ASCE)0733-9410(1992)118:10(1544)
Robertson PK, Campenella RG, Gillespie D and Rice A (1986). “Seismic CPT to Measure In-Situ Shear Wave Velocity”. Journal of Geotechnical Engineering, 112(8): 791–804. DOI: https://doi.org/10.1061/(ASCE)0733-9410(1986)112:8(791)
Kaneko F, Kanemori T and Tonouchi K (1990). “Low-Frequency Shear Wave Logging in Unconsolidated Formations for Geotechnical Applications”. In Geophysical Applications for Geotechnical Investigations, ASTM STP 1101, American Society for Testing and Materials (ASTM), F Paillet and W Saunders, eds., Philadelphia, PA, USA, 79– 98. DOI: https://doi.org/10.1520/STP17252S
Andrus RD, Mohanan NP, Piratheepan P, Ellis BS and Holzer TL (2007). “Predicting Shear-Wave Velocity from Cone Penetration Resistance”. Proceedings of the 4th Int’l Conference on Earthquake Geotechnical Engineering, Thessaloniki, Greece, 25-28 June, Paper No 1454.
Robertson PK (2009). “Interpretation of Cone Penetration Tests – A Unified Approach”. Canadian Geotechnical Journal, 46(11): 1337–1355. DOI: https://doi.org/10.1139/T09-065
Rollins KM, Evans MD, Diehl NB and Daily WD (1998). “Shear Modulus and Damping Relationships for Gravels”. Journal of Geotechnical and Geoenvironmental Engineering, 124(5): 396–405. DOI: https://doi.org/10.1061/(ASCE)1090-0241(1998)124:5(396)
Sykora DE and Stokoe II KH (1983). “Correlations of In-Situ Measurements in Sands and Shear Wave Velocity”. Geotechnical Engineering Report GR83-33, The University of Texas at Austin, USA.
Brown LJ and Weeber JH (1992). “Geology of the Christchurch Urban Area”. Institute of Geological and Nuclear Sciences Ltd., Lower Hutt, 103 pp.
Bradley BA (2012a). “Ground Motions Observed in the Darfield and Christchurch Earthquakes and the Importance of Local Site Response Effects”. New Zealand Journal of Geology and Geophysics, 55(3): 279–286. DOI: https://doi.org/10.1080/00288306.2012.674049
Bradley BA (2012b). “Strong Ground Motion Characteristics Observed in the 4 September 2010 Darfield, New Zealand Earthquake”. Soil Dynamics and Earthquake Engineering, 42: 32–46. DOI: https://doi.org/10.1016/j.soildyn.2012.06.004
Bradley BA and Cubrinovski M (2011). “Near-Source Strong Ground Motions Observed in the 22 February 2011 Christchurch Earthquake.” Seismological Research Letters, 82(6): 853–865. DOI: https://doi.org/10.1785/gssrl.82.6.853
Cubrinovski M, Bradley BA, Wotherspoon LM, Green RA, Bray JD, Wood C, Pender M, Allen J, Bradshaw A, Rix G, Taylor ML, Robinson K, Henderson D, Giorgini S, Ma K, Winkley A, Zupan J, O’Rourke TD, DePascale G and Wells DL (2011). “Geotechnical Aspects of the 22 February 2011 Christchurch Earthquake”. Bulletin of the New Zealand Society for Earthquake Engineering, 44(4): 205–226. DOI: https://doi.org/10.5459/bnzsee.44.4.205-226
Cubrinovski M, Bray JD, Taylor ML, Giorgini S, Bradley BA, Wotherspoon LM and Zupan J (2011). “Soil Liquefaction Effects in the Central Business District during the February 2011 Christchurch Earthquake”. Seismological Research Letters, 82(6): 893–904. DOI: https://doi.org/10.1785/gssrl.82.6.893
Cubrinovski M, Green RA, Allen J, Ashford SA, Bowman E, Bradley BA, Cox B, Hutchinson TC, Kavazanjian E, Orense RP, Pender M, Quigley M and Wotherspoon LM (2010). “Geotechnical Reconnaissance of the 2010 Darfield (Canterbury) Earthquake”. Bulletin of the New Zealand Society for Earthquake Engineering, 43(4): 243–320. DOI: https://doi.org/10.5459/bnzsee.43.4.243-320
Avery HR, Berrill JB, Coursey PF, Deam BL, Dewe MB, Francois CC, Pettinga JR and Yetton MD (2004). “The Canterbury University Strong-Motion Recording Project”. Proceedings of the 13th World Conference on Earthquake Engineering, Vancouver, British Columbia, 1-6 August, Paper No 1335.
GNS Science (2013). GeoNet. http://www.geonet.org.nz.
Wood CM, Cox BR, Wotherspoon LM and Green RA (2011). “Dynamic Site Characterization of Christchurch Strong Motion Stations”. Bulletin of the New Zealand Society for Earthquake Engineering, 44(4): 195–204. DOI: https://doi.org/10.5459/bnzsee.44.4.195-204
Wotherspoon LM, Orense RP, Bradley BA, Cox BR, Wood CM and Green RA (2013a). “Geotechnical Characterisation of Christchurch Strong Motion Stations”. Earthquake Commission Biennial Grant Report, Project No. 12/629, University of Auckland, 190 pp.
Wotherspoon LM, Orense RP, Bradley BA, Cox BR, Wood CM and Green RA (2013b). “Soil Profile Characterisation of Christchurch Strong Motion Stations”. New Zealand Society for Earthquake Engineering Annual Conference, Wellington, 26-28 April, Paper No 13.
Joh SH (1996). “Advances in Interpretation and Analysis Techniques for Spectral-Analysis-of-Surface-Waves (SASW) Measurements”. PhD Dissertation, Department of Civil, Architectural, and Environmental Engineering, Universityof Texas, Austin, TX, USA.
Robertson PK and (Fear) Wride CE (1998). “Evaluation of Cyclic Liquefaction Potential using the Cone Penetration Test”. Canadian Geotechnical Journal, 35(3): 442–459. DOI: https://doi.org/10.1139/t98-017
Stokoe II KH, Wright SG, Bay JA and Roesset JM (1994). “Characterization of Geotechnical Sites bySASW Method”. Proceedings of the 13th International Conference on Soil Mechanics and Foundation Engineering, New Delhi, India, 923–930.
Foti S, Comina C, Boiero D and Socco LV (2009). “Non-Uniqueness in Surface-Wave Inversion and Consequences on Seismic Site Response Analyses”. Soil Dynamics and Earthquake Engineering, 29(6): 982–993. DOI: https://doi.org/10.1016/j.soildyn.2008.11.004