Bayer Aktiengesellschaft

Strabag Bau-ag

Martin Weiser

Lothar Preis

Rudolf Schmidt

Bernhard Kotulla

Eberhard Born

Jurgen Faltin

Hans-Joachim Miesseler

Rolf Forster

Reinhard Wolff

Hans Haas

A method for the monitoring of deformation of components with light waveguides which are connected securely to the component at least over part of the length of the latter and are connected to a measuring apparatus with which the transmitting capacity of the light waveguide and the transit time and/or the damping of the light pulses sent through the light waveguides are continuously or intermittently monitored. The light waveguides are prestressed such that they remain in tension at all levels of deformation expected.

Method for monitoring deformations with light waveguides

By using a packer which is pushed as far over an anchor as the intended length of the moulding, the cavity in a borehole in the region of the bond can be completely filled with a reactive resin. Overhead work is possible even with slowly reacting resins. By using a catalyst on the packer, the reactive resin injected into the borehole behind the packer can be made to harden very rapidly.

Anchoring of tension members

An anchorage device for a tension wire bundle of tension wires made of composite fibre materials, which are arranged in a plurality of layers. The tension wire layers are clamped between clamping plates non-slidable in the traction direction. The tension wire layer is clamped between two wedges slidable in the longitudinal direction. With this arrangement, the longitudinally slidable tension wire layer is clamped so that the tractive force acting in it is transmitted practically over its total circumference through the clamping elements to the wedges.

Anchorage devices for a tension wire bundle of tension wires

The outer skin of armored earthwork constructions is attached to bands and the traction is transmitted to the ground by friction. The bands are made of a corrosion resistant, high strength weave or netting of reinforced organic, glass or carbon fibres or fibre mixtures and are preferably impregnated with liquid reaction resins such as epoxide, polyurethane or isocyanate resins. It is advantageous to impregnate the bands and then to harden them only after they have been laid.

Reinforcement of armored earth work constructions

Growing community of inventors

Cologne, Germany

Martin Weiser