The project:
Construction of a two-lane tunnel with escape galleries to provide a direct route through the town of Schwäbisch Gmünd without the inconvenience of traffic lights at crossings, etc.
Executing companies:
- Company Baresel
- Company Hinteregger+Söhne Bauges. mbH
- Company Züblin
- Company Ostu-Stettin
The problem:
Tunnel advance using tunnel boring methods; advance on a downhill gradient at some points; incursion of ground and fissure water to be expected; tunnel bore to pass under the River Rems. High mud content due to soluble mudstone, high risk of abrasion due to quartz content of the sandstone.
Our solution:
Approximately 30 KTZ and KTV pumps with motor ratings up to 7.5 kW are being employed. These pumps are sturdy, requiring little maintenance; if any additional ones are required these can be supplied immediately on call-off at any time.
