- Client: Municipality of Visp/Frutiger TU
- Site management/reference person: Frutiger AG, General Contractor/Jost Marcel
- Site manager/foreman: D'Onofrio Antonio/Bodenmann Diego
- Construction period: November 2017 to November 2018
- Construction costs: CHF 1.6 million
Technical data:
- 13,000 m3 excavation
- 250 m2 slope stabilization
- 1600 m3 material replacement
- 100 m3 concrete demolition
- 6 months dewatering Wellpoint combined with several submersible pumps
- 4'800 m3 Backfilling
- 1'200 m1 Cable protection pipes
- 150 m3 Pavement demolition
- 500 m1 Sewer pipes
Project description:
The excavation work had to be carried out within a short period of time. During the entire construction period, the excavation pit had to be kept dry with a dewatering system (wellpoint method combined with several pumps). In the lower area, the excavation was carried out between the piles. The backfilling of the buildings was carried out in stages. All embankments were secured with rubble concrete and negative concrete. The entire sewage system, surface water and power lines were demolished and then rebuilt. All excavated material had to be transported to the landfill.
Requirements:
- Obstruction by piles + sheet piling
- Demolition and relocation of all lines
- Very short construction time
- Obstruction due to water ingress
