German
History of technology
|
Year |
History of technology |
| 1898 / 1899 | Development and construction of the deep freezing plant “System Gebhardt” and the first contract for sinking the freezing shaft at HANSA-SILBERBERG |
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| 1907 | Patenting the “Gebhardt’s Lotuhr” (depth indicator) for safe measuring of freeze holes |
| 1906 / 1907 | Sinking the shaft HAIN 1 at the Nordhausen potash works |
| 1910 | GEBHARDT & KOENIG receives the “Grand Prix” at the World Exhibition in Brussels for its contribution to the development of the freezing process |
| 1925 | Development and patenting of the so-called “Joosten-process” for the solidification of sand by grouting technique |
| 1947 / 1952 | Soil stabilisation and grout curtains on the dam wall of RAPPBODE dam |
| 1955 / 1959 | Construction of the RAPPBODE tunnel using the so-called core construction method |
| 1960 | The first cementation of plate dolomite in MARXENGELS 2 shaft in Unterbreizbach by a self-developed cast steel base |
| 1961 | First freeze filter shaft ESPENHAIN-WEST with a self-developed and constructed shaft drilling system of up to 100 m depth |
| 1964 / 1965 | Remediation of the railway tunnel EDLE KRONE during continued railway traffic, by using a new type of tunnel barrier wagon, designed and produced by SBN (successful experimental construction) |
| 1964 / 1970 | Sinking of the potash freeze-shafts ZIELITZ 1 and 2 |
| 1968 / 1971 | Production of the first underground gas storage BURGGRAF-BERNSDORF in a former salt mine by means of installing a self-developed and patented mechanical-hydraulic sealing system in the shafts, which has been ensuring safe gas storage ever since |
| 1969 | Commencement of the drilling operations on the BRUECKEN 1 shaft with a shaft drilling system for bedrock, developed and built by SBN, used and further developed for 6 more ventilation shafts before 1990 |
| 1970 / 1981 | Main contractor for mining the complete rock-cavity construction for the first underground power station in the GDR in Markersbach |
| 1977 | The first breaking of ground in Industrieweg 2a in Nordhausen, where the company stands today |
| 1978 / 1982 | Development and construction of a tunnel boring machine for excavation of a nearly 20 km drinking water supply tunnel in the Thuringia highlands |
| 1982 | Construction of the first borehole utilizing the “Raise- Boring-Method” over 41 m at the air shaft RAMSTEDT 1 |
| 1988 | Construction of the underground dam structure in the mining area of the copper slate mine THOMAS MUENTZER in Sangerhausen for hydrological closure of the west field |
| 1990 | Construction of the first steel bridge in the Nordhausen workshops after the German reunification |
| 1991 | Starting the operations in the project for long-term safekeeping of potash mining shafts |
| 1993 / 1995 | Turnkey construction of the extension to the Nordhausen sewage treatment plant |
| 1993 | Start of an extensive activity in manufacturing of components for specialist foundation engineering machines made by our sister company BAUER Maschinen, which continues to this day |
| 1995 | Co-development of a pilot process for long-term safekeeping of solution-filled salt shafts at the south-west flank of the Stassfurter saddle |
| 1998 | Development, patenting and use of the so-called bridge-shifting module for processes of sliding-in steel and composite bridges |
| 2000 | First order for expansion of a bio-gas plant in Nordhausen for the VAN ASTEN animal breeding |
| 2003 / 2005 | Excavation of a connection drift over a rock burst field between the mining areas Angersdorf and Teutschenthal |
| 2003 | Construction of the first highway viaduct on the BAB A38 using a launching girder construction |
| 2006 | First use of the co-developed weld-restoration method “HIFIT” (High Frequency Impact Treatment) |
| 2007 | Development of the biogas plant construction activity as general contracter using self-developed components (steel fermenter, equipment container, dosing feeder for solid matter) |
| 2009 | Completion of the investment program “workshop expansion” to modernize the production of machinery in Nordhausen |
| 2010 | Completion of structural rehabilitation and weld-restoration work within the project THE SQUAIRE (Frankfurt/Main Airport) |
| 2011 | Completion of Schnettker Bridge, Dortmund, having used the self-developed and patent-pending lift-andshift mechanism to erect the central supporting arch |
| 2011 | Repository for radiaoctive waste Konrad Mine, start driving connecting tunnel between mine shaft and repository chambers |
| 2012 | Rhine Bridge Leverkusen, start reconstruction of bearing structure and welding seams repair for further sustain of traffic on Motorway A1 |
| 2013 | Chrome ore mine in Kazakhstan, start driving 4000 m long connection tunnel into new ore field |
| 2014 | Construction of 5 sideways moveable bridges for infrastructure project near Magdeburg finished |
| 2014 | Construction of biogas plant for methane finished in Nordhausen |
| 2015 | Development and construction of semimobile mining winch SBN FH 25 |
| 2016 | Finishing of first mast for prototype drill rig according to API standard for engineering company NEORig in Conroe, USA |
| 2017 | Sea transport of complete girder arch bridge from Wilhelmshaven/Germany to Kirkenes/Norway and installation at Bøkfjord |
How to find us
SCHACHTBAU NORDHAUSEN GmbH
Industrieweg 2a
99734 Nordhausen
Telephone: +49 3631 632-0
Fax: +49 3631 632-334
E-Mail: sbn@schachtbau.de
Web: www.schachtbau.de
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