Near-Surface Velocity Models in Davao City, Philippines using Multi-Channel Analysis of Surface Waves and Seismic Refraction
Issued Date
2023-01-01
Resource Type
Scopus ID
2-s2.0-85171322145
Journal Title
5th Asia Pacific Meeting on Near Surface Geoscience and Engineering, NSGE 2023
Rights Holder(s)
SCOPUS
Bibliographic Citation
5th Asia Pacific Meeting on Near Surface Geoscience and Engineering, NSGE 2023 (2023)
Suggested Citation
So S., Boonchaisuk S. Near-Surface Velocity Models in Davao City, Philippines using Multi-Channel Analysis of Surface Waves and Seismic Refraction. 5th Asia Pacific Meeting on Near Surface Geoscience and Engineering, NSGE 2023 (2023). doi:10.3997/2214-4609.202378028 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/90182
Title
Near-Surface Velocity Models in Davao City, Philippines using Multi-Channel Analysis of Surface Waves and Seismic Refraction
Author(s)
Author's Affiliation
Other Contributor(s)
Abstract
A study of property of soil layer in Davao city, the Philippines by using the Multi-channel Analysis of Surface Wave (MASW) and Seismic refraction techniques. The aims of the study are to generate a shear wave and primary wave velocity model, and obtain Vs30 Contour map. Both 2D Vs and Vp model can be divide into 3 layers base on boreholes data. The top layer be related to clay layer and sand clay and/or sand silt layer. The second layer corresponds to gravels with clay layer. The bottom layer corresponds to volcanic breccia. The Vs30 contour map from MASW (WaveEq), estimate Vs30 (Wang & Wang, 2015), seismic refraction, and lithologic logs were obtained. According to the NEHRP standard, all Vs30 contour map can be classified into Class C as the very dense soil or soft rock.