Tie-back anchoring and deep foundation of a flood protection facility at the inland harbour Schaartor with GEWI-micropiles, type 63,5 DKS, from the waterside and including bore hole surveys and warfare agent detection, in the course of the remodelling of the promenade.

Deep foundation of cooling water ducts in section C 112 with GEWI-Plus Ø 75 mm with single and double corrosion protection combined

Adjacent to the waterway leading into the Jade-busen bay, a hard coal power plant is being built according to latest efficiency and environmental standards. The new plant is scheduled to live in 2012, only four years after the foundation stone had been laid. Our job in this endeavour included the production of micropiles for the deep founda-tion of cooling water ducts inside the header build-ing pit in section C 112. In sum, we drilled 283 piles of type GEWI-Plus with Ø 75 mm with a total steel length of more than 9.3 km.

In the course of the enlargement of the Kaiserschleuse sea lock, we produced 965 GEWI-Micropiles to secure the underwater foundation bottom of the lock chambers against uplift and compressive forces and to tie-back the chamber walls on the west side. Moreover, we stabilised the foundation plate of an old light tower, known as the ‘Pingelturm’, with TITAN-Micropiles.

Deep foundation of the "Star Flyer" carrussell at Tivoli Park, Copenhagen. We performed our drill and grout works with two bore units simultaneously to produce 24 Gewi-micropiles with double corrosion protection designed to absorb alternating tensile and compressive forces. Due to solid rock and limestone we chose an overburden drilling technique with down-the-hole-hammers.

Soil nailing in order to stabilise the slope at the west entrance of the Schottenbergtunnel, and anchoring a supporting wall by the east entrance.

Pile load test (group test) on 5 multi-bar micropiles simultaneously in the course of the project planning phase. Tensile loads of ca. 1.900 kN were applied to each individual pile, and ca. 9.000 kN on all five combined.

Anchoring of a transmitter mast on top of Germany’s tallest mountain, the Zugspitze, in ca. 2.900 m above sea level. We carried out our works under extreme weather conditions in permafrost soil during winter, only protected by a work tent. Not at last the difficult logistics proved a significant adventure to our work crew.

Tiefgründung der Dachkontruktion des Zentral-Omnibus-Bahnhofs in Hamburg. Unsere Pfähle mussten nicht nur den Gewichtsdruck in tragfähige Bodenschichten ableiten sondern vielmehr auch wechselhafte Windlasten aufnehmen, so dass wir unsere Pfähle entsprechend auf Druck- und Zugbelastungen ausrichten mussten.

Securing the tribunes of the Fritz-Walter-Stadium with Dywidag strand anchors and Dywidag rock bolts. We completed our works during summer breaks of the Bundesliga in 2004 and 2005.

Ex-post anchoring of the bridge counterforts of the "Sandbrücke" under highly confined conditions and during ongoing road traffic. We produced 4 mini piles, system GEWI-pile with double corrosion protection, length 24 m, service load up to 610 kN, with a mini drill rig with a shortened drill mast.