SUSTAINABLE SEWER REPLACEMENT IN RECREATIONAL AREA
The Volkspark in Springe is a green oasis and an important recreational area for the town's residents. A more than 30-year-old combined sewer running underneath was so badly damaged by broken glass, cracks and root ingrowth that sewage was leaking out. The only solution was to replace the entire section. The sustainable solution: renewal of the old sewer over a length of 265 m using the closed construction method, or more precisely, the static bursting method.
Using the GRUNDOBURST 1900G and a Ø 920mm bursting wrench, the old DN 700 pipe was broken open and a new, larger DA 800 PE pipe was pulled directly into the existing route. This provided a new, stronger sewer with greater hydraulic capacity in a single operation. This not only conserved resources and massively reduced landfill space, construction time, emissions and costs, but also avoided disruption to the natural environment: The old tree population in the park, which would have been largely destroyed by the open construction method, remained completely intact despite the size of the project.
KEY FACTS
- Springe / Germany 2023
- Project: Renewal of a combined sewer DN 700 made of concrete over a total length of 1,265 m in 2 sections with pipes DA 800*47.4 mm made of PR 100
- Application: Sewer construction
- Method: Static bursting method
- Client: City of Springe
- Client: City of Springe
- In use: GRUNDOBURST 1900G and GRUNDOLOG III
