Tunnel construction and tunnel tubbing
AssigneeWayss & Freytag Aktiengesellschaft
InventorVolker Otto Meldner
Life of this patent
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Abstract
A tunnel construction made of tubbings forming a lining or casing for a tunnel includes a plurality of contact points between adjacent tubbings. These contact points comprise adhesive material acting to connect adjacent tubbings to each other at predetermined points. The contact points are distributed around the circumference of the tubbing rings at predetermined locations which depend on the type of the tubbing used and also on the points of pressure application by the driving shield of a tunneling or heading machine. The present tubbings have recesses in their surface facing into the tunnel whereby the recesses have a substantially trapezoidal shape to form three ribs extending substantially in the direction of the longitudinal tunnel axes.
Claims13
A tunnel construction having a longitudinal axis, comprising a plurality of tubbings forming a number of rings arranged side by side along said longitudinal axis, said rings having interfaces between adjacent rings, connecting contact means inserted between said interfaces between tubbings of adjacent rings, said connecting contact means providing the only force transmitting connections between the tubbings of adjacent interconnected tubbing rings, said connecting contact means being located at calculated, predetermined points along said interfaces between the tubbings of adjacent rings, whereby the force transmission between adjacent rings is localized at said predetermined points.
Dependencies are inferred from the claim text.