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New Issue of Newsletter Released

19The second issue of the Applied Seismology Consultants Newsletter has been released.

Click here to download the full colour newsletter in pdf format from the ASC Website (250kb).

Below is a summary of the content in the newsletter:


Advanced Microseismic Analysis in Caving Prediction

ASC and Itasca Consulting Group are continuing a long tradition of collaboration as joint research partners in the Mass Mining Technology (MMT) Project, an industrially-funded project supporting fundamental research into the mechanics of caving, blasting and flow in underground mass mining. The strength of collaboration between ASC and Itasca lies in the ability to study fundamental modes of rock fracture, using the Particle Flow Code (PFC) to create and test “synthetic rock” and comparing the predicted spatial and temporal trends in fracturing directly with microseismic data obtained in the laboratory or field. This represents a powerful combination of tools that can be applied to a wide range of rock mechanics problems.


Conferences

ASC has presented at two conferences in the past six months:

  • EUROCK 2006 was held at the University of Liege, Belgium between 9th and 12 May 2006.
  • ISSMGE Fifth International Congress on Environmental Geotechnics at Cardiff, UK held between 26th and 30th June 2006.



    • Relative Location Now In InSite

    The InSite Seismic Processor now contains a relative-location algorithm in the location module, following the approach reported by Reyes-Montes et al.[2005]. The method has been used to relocate events recorded during excavation of the TSX tunnel at the Underground Research Laboratory (URL), Canada. Locations are improved by an order of magnitude, and define clear structures with planes parallel to the tunnel perimeter.


    Developing AE and Ultrasonic Technologies

    ASC has completed scientific coordination of the OMNIBUS project. This formed part of the fifth EURATOM framework programme; a research and training initiative to help exploit the full potential of nuclear energy. The objective was to develop an ultrasonic tool to monitor the rock barrier at potential geological radioactive waste disposal sites. An OMNIBUS data acquisition system has already been supplied to a nuclear waste stakeholder and is currently acquiring data in an underground laboratory 450m below the surface. It is hoped that the technology developed will not only be used by organisations charged with evaluating, selecting and operating deep geological repositories for nuclear waste, but also be used in other fields such as civil engineering, mining, and petroleum engineering.


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