Construction phase 1.1 is divided into two sections. Section 1 extends on the grounds of the sewage treatment plant from Scharfenberger Straße to the flood channel over a length of approx. 991.00 m. It included the laying of approx. 991 m sewer pipe OD 1200 PE -100 RC in open construction and the construction of 6 special structures with respective fittings.
The adjoining section 2 extends from the flood channel to the Riegelplatz over a length of approx. 1,070 m. Subsection 2 is mainly realized in closed construction with a sewer pipe DN 1,600 Stb and a pipe inlet of a sewer pipe OD 1,200 PE-100 RC. In this section, the construction of 3 special structures with respective fittings is planned.
The following main services must be provided:
Oberflächenaufbruch
- Excavated earth approx. 20,000 m³ (depth between 3.00 m and 13.00 m)
- temporary construction road made of gravel approx. 12,500 m²
- Explosive ordnance sounding during construction over the total length of 2,100 m
Construction pits
- 3 x girder wall shoring (l x w x h approx. 22 m x 7.50 m x 9 m) with groundwater lowering (6 wells DN 600 to DN 800)
- sliding rail shoring for open installation of the PE 100-RC pipeline (width approx. 2.50 m to 5.00 m, depth up to approx. 5.00 m) and
- Girder wall shoring for the open laying of the GRP pipeline (width: 2.80 m, depth up to approx. 9.00 m)
- 2 x Zielgrube für Rohrvortrieb (l x b x h) 14 m x 8 m x 13 m
- 4 x formation of a waterproof sole (1.00 m thick concrete sole C25/30)
- 2 x Startgrube für Rohrvortrieb (l x b x h) 11 m x 9.50 m x 10 m
- 4 x sheet piling made of U-profiles (GPU 12-700 with b = 0.70 m and h = 0.40 m)
- 4 x formation of a waterproof sole approx. = 1 m with groundwater lowering (17 wells DN 600 to DN 800)
Canal construction in open construction:
- approx. 43 m GRP DN 1400 (depth up to approx. 9.00 m)
- approx. 1,097 m PE 100-RC OD 1,200, SDR 17 (depth up to approx. 5.00 m)
- approx. 106 m PE 100-RC OD 560, SDR 17 (depth up to approx. 3.00 m)
- Installation via drawing and welding pits every 50 m, connection between the sections via E-sleeves PE 100-RC, PN 10
Closed sewer construction
- approx. 375 m pipe jacking DN 1,600 Stb and 635 m pipe jacking DN 1,600 Stb Microtunnelling (unmanned), full-cut method incl. 2 curves
- ca. 1.010 m Rohreinzug PE 100-RC OD 1.200, SDR 17
Buildings
- 6 special structures made of reinforced concrete in-situ concrete, wall thickness approx. 0.50 m of different dimensions (l x w x h) of
ca. 6.70 m x 3.60 m x 12.50 m bis ca. 17 m x 5 m x 3.80 m
- 3 manholes made of reinforced concrete in-situ concrete, wall thickness approx. 0.30 m on strip foundations (l x w x h) 2.50 m x 1.20 m x 2.20 m
- Platforms made of steel beams (HEB 200, HEB 160) (l x w x h) 10.00 m x 3.50 m x 6.00 m
Bauwerksausstattung:
- 1 x MID for fully and partially filled pipelines DN 1.000
- 3 x pressure transmitter with flange connection DN 80
- 2 x soft-sealing ball valve DN 1.000 with electric rotary drive
- 1 x soft-sealing gate valve DN 1.000 with electric rotary drive
- 1 x soft-sealing gate valve DN 500 with electric rotary drive
- 5 x soft-sealing gate valves DN 80 with handwheel
- 6 x soft-sealing gate valve DN 200 with handwheel
- 4 x BEVs for wastewater DN 200 PN 10 with flange connection DN 200
- 3 x BEVs for waste water DN 200, PN 10 with flange connection DN 80
Construction phase 1.1 from the Kaditz sewage treatment plant to Riegelplatz will be completed in two sections.
1. KA to flood channel
The 1st section extends on the grounds of the sewage treatment plant from Scharfenberger Straße to the flood channel.
Oberflächenaufbruch:
- approx. 10,500 m³ excavated earth, depths between 3.00 m - 13.00 m
- approx. 12,000 m² temporary construction road made of gravel
- approx. 991 m total length - explosive ordnance probing during construction
Construction pits:
- 3 x girder wall shoring (l x w x h approx. 22 m x 7.50 m x 9 m) with groundwater lowering approx. 6 wells DN 600 to DN 800
- sliding rail shoring for open installation of the PE 100-RC pipeline (width approx. 2.50 m to 5.00 m, depth up to approx. 5.00 m) and
- Girder wall shoring for the open laying of the GRP pipeline (width: 2.80 m, depth up to approx. 9.00 m)
Canal construction in open construction:
- approx. 43 m GRP DN 1,400, depth up to approx. 9.00 m
- approx. 1,097 m PE 100-RC OD 1,200, SDR 17, depth up to approx. 5.00 m
- approx. 106 m PE 100-RC OD 560, SDR 17, depth up to approx. 3.00 m
- Installation via drawing and welding pits every 50 m, connection between the sections via E-sleeves PE 100-RC, PN 10
Buildings:
- 3 special structures made of Stb C40/45, XC4, XF3, XA3, WF - in-situ concrete, wall thickness = 0.50 m, l x w x h: 17 m x 5 m x 3.80 m
- 3 manholes made of Stb C40/45, XC4, XF3, XA3, WF in in-situ concrete, wall thickness = 0.30 m on strip foundations l x W x H: 2.50 m x 1.20 m x 2.20 m
- Platform made of steel beams HEB 200, HEB 160, l x w x h: 10.00 m x 3.50 m x 6.00 m
Bauwerksausstattung:
- 1 x MID for fully and partially filled pipelines DN 1.000
- 1 x pressure transmitter with flange connection DN 80
- 1 x soft-sealing ball valve DN 1.000 with electric rotary drive
- 1 x soft-sealing gate valve DN 1.000 with electric rotary drive
- 1 x soft-sealing gate valve DN 500 with electric rotary drive
- 2 x soft-sealing gate valves DN 80 with handwheel
- 3 x soft-sealing gate valve DN 200 with handwheel
- 3 x BEV for wastewater DN 200 PN 10 with flange connection DN 200
- 1 x BEV for wastewater DN 200, PN 10 with flange connection DN80
2. Flood channel to Riegelplatz
The subsequent 2nd section extends from the flood channel to the Riegelplatz over a length of approx. 1,070 m. This section is mainly realized in closed construction with a sewer pipe DN 1,600 Stb and a pipe inlet of a sewer pipe OD 1,200 PE-100 RC.
Oberflächenaufbruch:
- approx. 9,000 m³ excavated earth, depths between 5.00 m - 13.00 m
- approx. 500 m² provisional asphalted construction road
- approx. 1,070 m total length - explosive ordnance sounding during construction
Construction pits:
- 2 x Zielgrube für Rohrvortrieb l x b x h: 14.00 m x 8.00 m x 13.00 m
- 4 x formation of a waterproof sole 1.00 m thick concrete sole C25/30
- 2 x Startgrube für Rohrvortrieb l x b x h: 11.00 m x 9.50 m x 10.00 m
- 4 x sheet piling made of U-profiles GPU 12-700, width = 0.70 m and height = 0.40 m
- 4 x formation of a waterproof sole 1.00 m thick concrete sole C25/30
- Groundwater lowering - approx. 17 wells DN 600 to DN 800
Sewer construction in closed construction:
- approx. 375 m pipe jacking DN 1,600 Stb and 635 m pipe jacking DN 1,600 Stb Method: Microtunnelling (unmanned), full-face method incl. 2 curves
- ca. 1.010 m Rohreinzug PE 100-RC OD 1.200, SDR 17
Buildings:
- Production of 3 special structures made of Stb C40/45, XC4, XF3, XA3, WF in-situ concrete, wall thickness = 0.50 m, l x w x h: 6.70 m x 3.60 m x 12.50 m
Bauwerksausstattung:
- 2 x pressure transmitter with flange connection DN 80
- 1 x soft-sealing ball valve DN 1.000 with electric rotary drive
- 3 x soft-sealing gate valves DN 80 with handwheel
- 3 x soft-sealing gate valve DN 200 with handwheel
- 1 x BEV for waste water DN 200 PN 10 with flange connection DN 200
- 2 x BEVs for waste water DN 200, PN 10 with flange connection DN80