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Do Van Luu
University of Science, Viet Nam National University Ho Chi Minh City
Civil Engineering, Building, Construction & Architecture Engineering Transportation

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Determination of shear wave velocity by using multichannel analysis of surface wave and borehole measurements: A case study in Ho Chi Minh City Tran Duy Tap; Nguyen Nhat Kim Ngan; Do Van Luu; Nguyen Thanh Vanb
Lowland Technology International Vol 22 No 2 (2020): Lowland Technology International Journal
Publisher : International Association of Lowland Technology

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.0001/ialt_lti.v22i2, Septemb.616

Abstract

The soil characterization of the residential development project located in Ho Chi Minh City (HCMC) was conducted by using multichannel analysis of surface wave (MASW) and downhole measurements. The obtained results of both methods indicate that the soils within the depth range of 0-30 m were divided into three layers including (i) the filled soil with shear wave velocity (VS) values of 75-93 m/s, (ii) the silty clay with VS of 61-200 m/s, and (iii) the firm layer soil with VS of 250-415 m/s. The VS30 values estimated by using the MASW, downhole, and empirical correlation methods are in the range of 150-152, 137-161, 126-171 m/s, respectively. Accordingly, the study area is well classified as class E according to National Earthquake Hazards Reduction Program guidelines (NEHRP). The MASW results are in good agreement with those obtained by using the downhole measurements with the average relative difference of 3-4%. This study represents a first attempt of using the MASW method to evaluate the stiffness of soil around HCMC areas and the results obtained from this method and correlation between standard penetration test (SPT)-N and VS can contribute a further detailed understanding of geophysical features in the HCMC area.
Co-Authors Nguyen Nhat Kim Ngan Nguyen Thanh Vanb Tran Duy Tap