Natural Disaster Prevention
Observational Studies in South African Mines to Mitigate Seismic Risks
| Principal Investigator (Affiliation) | Prof. OGASAWARA Hiroshi / College of Science and Engineering, Ritsumeikan University |
|---|---|
| Collaborators | Tohoku University, The University of Tokyo |
| Adoption fiscal year | FY 2009 |
| Research Period* | 5 Years |
| ODA Recipient Country | Republic of South Africa |
| Counterpart Research Institutions | Council for Science and Industrial Research (CSIR) |
| General Description of the Research Project | Mining-induced seismicity is a serious safety hazard to mine workers as natural earthquakes are to those who live on surface. In order to control and mitigate the seismic risks, this project aims to upgrade the schemes of seismic monitoring and risk assessment for deep mines. A highly sensitive microfracture monitoring system will be implemented in the area of high seismic potential to identify the source fault of impending earthquakes. Mining-induced stress field will be tracked using numerical modeling and sensitive strain observations. In addition, near-fault dynamic stress will be monitored during the mainshock rupture to improve the assessment of strong shake. |
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