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LONGITUDINAL TUBE BENDING DUE TO GROUT PRESSURES (2009)
A mathematical relation is described between the distribution of grout over injection ports, rheological properties and vertical grout pressure gradient immediately behind a TBM. This vertical grout pressure gradient is an important loading parameter in beam action calculation of tunnel linings. Longitudinal moments in the lining are of importance in tunneling especially for the design of the lining. These moments are determined by the uneven distribution of jack forces from the TBM but also by the buoyancy forces that are exerted by the grout that is still in the liquid phase close behind the TBM.
Reference:
Geotechnical Aspects of Underground Construction in Soft Ground – Ng, Huang & Liu (eds), © 2009 Taylor & Francis Group, London
Geotechnical Aspects of Underground Construction in Soft Ground – Ng, Huang & Liu (eds), © 2009 Taylor & Francis Group, London
Organization:
Delft Hydraulics & Delft University of Technology, Delft, The Netherlands
The Netherlands
Delft Hydraulics & Delft University of Technology, Delft, The Netherlands
The Netherlands
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