6th Asia Pacific Meeting on Near Surface Geoscience and Engineering

About the Workshop

Surface wave exploration is an effective tool to estimate the S-wave velocity profile and attracts many people’s interest in the geotechnical industry because S-wave velocity is one of the most critical parameters for geotechnical site characterization, stability assessment of foundation, evaluation of liquefaction risk, evaluation of earthquake ground motion, etc.

This workshop covers recent development of active and passive surface wave explorations, including data acquisition (e.g., DAS), data processing (e.g., Machine Learning), and case studies (onshore and offshore). In addition, standardization of the surface wave explorations is discussed. There are some guidelines regarding surface wave explorations. We will invite some authors of a guideline developed by the InterPACIFIC project, which delivered a good practice of surface wave analysis. ISO 24057-2022 (Array measurement of microtremors to estimate shear wave velocity profile) is developed as an international standard for the passive surface wave method, and we will also discuss the ISO standard for the active surface wave method.

Researchers and practitioners using surface wave exploration are recommended to participate in this workshop.

Workshop Programme

Time	Title	Presenter	Affiliation
9:00 - 9:05	Introduction	Mr. Chisato Konishi	OYO Corporation
9:05 - 9:40	Keynote Lecture: Surface Wave Analysis: One Step Beyond	Prof. Sebastiano Foti	Politecnico di Torino
9:40 - 10:10	History of the Development of Microtremors Exploration in Japan	Prof. Hiroaki Yamanaka	Tokyo Institute of Technology
10:10 - 10:40	Surface Wave Method Road Ahead: Monitoring, DAS, and Machine Learning	Prof. Koichi Hayashi	Kyoto University
10:40 - 10:55	Coffee Break
10:55 - 11:20	Mictrotremor Array Method with Small Arrays for Shallow-and-dense Survey	Dr. Ikuo Cho	National Institute of Advanced Industrial Science and Technology (AIST)
11:20 - 11:45	Mictrotremor Array Method for Floating Offshore Wind Farm	Dr. Yoshikazu Matsubara	OYO Corporation
11:45 - 12:10	Introduction to Standardization of Passive Surface Wave Exploration (ISO 24057:2022)	Dr. Seiji Tsuno	Railway Technical Research Institute
12:10 - 13:15	Lunch Break
13:15 - 13:40	Applications of MASW Surveys in Australia	Mr. Koya Suto	Terra Australis Geophysica
13:40 - 14:05	Full Wavefield Modeling and Inversion of Active MASW	Prof. Chih-Ping Lin	National Yang Ming Chiao Tung University
14:05 - 14:30	Comprehensive Analysis of Active Surface Wave Survey Data for Better Modeling of Near-Surface Velocity Structure	Mr. Tomio Inazaki	Freelance
14:30 - 14:45	Coffee Break
14:45 - 15:10	Wave Equation Skeletonized Surface Waves Inversion for Near-Surface Application	Prof. Jing Li	Jilin University
15:10 - 15:35	Active Surface Wave Exploration on River/Road Embankment	Dr. Kyosuke Onishi	Public Work Research Institute (PWRI)
15:35 - 16:00	Proposal of the Standardization of Active Surface Wave Exploration	Mr. Chisato Konishi	OYO Corporation
16:00 - 16:30	Discussion and End of Workshop