Construction Project
HSM Main Sewer Middle Düsseldorf, Construction Phase 1-4 |
Location
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Client
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Planning
- MHW-Metz Herder Wendt, Düsseldorf
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Investment volume
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Construction time
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Activities
- Preparation of the documents for bid invitation
- Technical coordination
- Contract management
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Structures constructed
- Construction Phase 1: Canal as box profile (W/H = 3.60/3.60 m) with a length of 730 m
- Construction Phase 1/2: Canal as egg profile (W/H = 1.20/2.10 m) with a length of 2,047 m
- Construction Phase 1/2: Culvert with circular profile (internal diameter 4000 mm) with a length of 2,047 m
- Construction Phase 2: Canal as double-cell cross-section (W/H = 2.20/4.00 and 8.00/4.00 m) with a length of 318 m
- Construction Phase 3a: pipe tunnelling (internal diameter 3600 mm) with a length of 562 m
- Construction Phase 3b: pipe tunnelling (internal diameter 2200 mm) with a length of 216 m
- Construction Phase 4: pipe tunnelling (internal diameter 2600 mm) with a length of 1,824 m
- Starting shaft shield tunnelling (L/W/H = 30.00/12.00/18.50 m)
- Underground pumping station for emptying the culvert
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Special features
- Canal egg profile in gallery construction method with conveyor shaft distance of 50 to 70 m
- Driving of the low-lying culvert with shield tunnelling and a mean earth cover of 7.50 m
- Use of a hydroshield with liquid-supported road header (Øa = 4.80 m)
- Tunnelling of the nominal widths 2200 to 3600 mm with hydraulic pipe tunnelling
- Cover solution in the area of the required entry or control shafts and the gate and well structures
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Utilization
- Overflow collector as reservoir canal
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Construction
- Single-shell expansion with watertight reinforced concrete tubbings in the area of the shield line
- Egg profile out of concrete pre-fabricated parts or with mini full-round formwork carriage
- All structures out of concrete impervious to water
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Geology
- Rough gravel, sand, gravel, rubble, in part large boulders
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