Switzerland - St. Gallen
| Participants | |
|---|---|
| Bauherr | Stadtwerke St. Gallen, Schweiz |
| Contractor | Subunternehmer Huber Leitungsbau |
| Ort der Baustelle | St. Gallen, St. Leonhard Straße |
| Tender | |
| Beschreibung | Two steel pipe jackings OD 609 mm for crossing under 3 streets for the installation of community heating pipes |
| Ausgeschriebene Leistungen | Guided steel pipe jacking, distance 59 m to cross under 3 streets with 7 lanes, soil conditions refill material, clay, bricks, old foundations etc. |
| Alternative Methodes des Auftragnehmers | Guided steel pipe jacking with down-the-hole hammer |
| Depth of Coverage | 2 m |
| Accuracy | vertically ± 5 cm; horizontally ± 15 cm |
| Time for Job or Production Rate | 3 weeks including job site setup and changing the positions of the jacking frame for the second drive |
| Driving Length | 59 m |
| Any other Specifics | Obstacles in 15 m distance from the launch shaft, 25 cm under the bottom and above the top of the steel pipe |
| Ground conditions | |
| Described Ground in the Ground Report | Refill material, clay, bricks, old foundations etc. |
| Encountered Soils | Refill material, clay, bricks, parts of old foundations etc. |
Bohrtec Gesellschaft für Bohrtechnologie mbH
Konrad-Zuse-Straße 24
D - 52477 Alsdorf
+49 (0) 2404 9881 - 0
+49 (0) 2404 9881 - 10
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