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  1. tomsklucki

    How do we design retaining walls to retain stiff soils

    This posting may be a bit late to be useful, however: Design the excavation as a rock cutting, with measures such as sprayed concrete, meshing, bolting or anchoring as appropriate, in order to maintain the self-supporting nature of the rock. If you don't build a retaining wall then you don't...
  2. tomsklucki

    seismic activity and undersea slope stability

    Look at British Geological Survey sites (BGS have a global seismology and geomagnetism group based in Edinburgh) e.g. for a study of seismicity and earthquake hazard in the UK including North Sea http://www.gsrg.nmh.ac.uk/hazard/hazuk.htm also...
  3. tomsklucki

    Reactivated settlements in peat

    Has the amount of rail traffic on the embankment increased in recent years?
  4. tomsklucki

    Expanded Tunnel Linings

    Seek help from the tunnel lining manufacturers - ask them for names of projects involving their products and references to published papers. Try for example sending an enquiry to the Charcon Tunnels division of Tarmac Precast - the email address is on their site at http://www.charcon.co.uk/
  5. tomsklucki

    Geotechnical Mohr Circle

    In a triaxial test the hydraulic pressure in the cell is the confining pressure sigma 3. Sigma 2 is the same as sigma 3 in atriaxial cell. Sigma 1 is increased above sigma 3 by applying a 'deviator' stress in the vertical (axial) direction by loading the top of the sample. Sigma 1 - Sigma 3 is...

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