BLB NRW D/ Düsseldorf(WE2348) D-HHU 20.00 Kanalsanierung/Kanalsanierungsarbeiten 065-26-00307

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The State Building and Property Management Agency (BLB) NRW intends to rehabilitate the sewer network of Heinrich-Heine-University (HHU) Düsseldorf. The subject of the performance description is the execution of the rehabilitation sections (SA) 3, 10, 11, 13, 16 and 17 Site fencing approx. 880 m Removal of topsoil approx. 210 m2 Removal and reinstatement of paved areas approx. 785 m2 Demolition of existing sewers up to DN 200 approx. 230 m Excavation of soil approx. 1,225 m3 Reinsertion of soil approx. 245 m3 Soil replacement hard limestone approx. 205 m3 Main backfilling of soil: supply and install approx. 410 m3 Pipe zone material: supply and install approx. 90 m3 Backfilling for cable trenches: supply and install approx. 115 m3 Liquid soil: supply and install approx. 190 m3 Disposal of soil BM-0 to BM-F2 approx. 1,765 t Shoring/retaining works approx. 1,565 m2 Exploratory boreholes for hazardous materials for shoring works approx. 130 m Sewage water management/pumping up to DN 500 approx. 1,330 m PP sewer pipes up to DN/OD 200 approx. 315 m Rainwater retention sewer, Stb pipes DN 800 approx. 32 m TIP method DN 300 approx. 130 m TIP method DN 400 approx. 30 m TIP method DN 500…

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