Bauer Spezialtiefbau Gmbh

Karl Bauer Spezialtiefbau Gmbh & Co Kg

Manfred Stocker

Thomas Bauer

Karlheinz Bauer

Erwin E Stotzer

Gunter Henn

Konrad Friedrich

Franz X Abt

A method and an apparatus for producing a support element in the ground are described, a hole being sunk through non-stable ground at least down to the load bearing soil. As a result of a wedge-shaped construction of the drill bit the loosened soil is displaced into the adjacent region of the hole and consequently the area round the hole is compacted. The drill has a circular cylindrical core, which is provided with an outlet opening in the vicinity of the drill bit. Preferably tampable material is filled through the core tube, accompanied by the retraction of the drill. The material is simultaneously tamped with the aid of the drill. The invention has the particular advantage that, in cost effective manner, it is possible to use tampable material from the area immediately surrounding the building site and there is no need for expensive, classified filling material. Tubing of the hole is unnecessary through the use of the core tube.

Method and apparatus for producing a support element in the ground

Process and apparatus for consolidating, sealing and stabilizing a predeterminable area in the ground, particularly for making foundations, underpinnings or seals in a building site, by injecting at least one hardening liquid material in a high energy liquid jet into the ground, accompanied by the simultaneous injection of a gaseous material, characterized in that for the injection of the gaseous material, at least one discrete gas jet is formed and injected separately from the liquid jet and is located in the vicinity of the exit port of the liquid jet and guided at a distance from the liquid jet.

Process and apparatus for reinforcing a predeterminable area in the

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Schrobenhausen, Germany

Manfred Stocker