Renovation and renewal of sewage systems in outer layers.

Subject of these specifications are work on the basic repair of the rainwater and sewage system on the property of the "Feldwebel-Lilienthal-Kaserne Delmenhorst.

The renovation measures are to be carried out in open and closed construction. The existing sewer system in this rehabilitation section remains in its structure, with a few exceptions.

The trenchless remediation procedures include measures for shaft rehabilitation, hose relieving measures of postures and connecting lines, robot work, nozzle rehabilitation and the repair of partial defects by means of FRP shortliners.

Main measures open renovation:

- Renewal of sewers (DN 150 to DN 300) approx. 350 m,

- Renewal of canals (DN 600) approx. 20 m,

- Renewal of connecting cables approx. 500 m,

- punctual repair measures (head hole) approx. 20 pieces,

- Renewal manholes about 10 pieces,

- horizontal flush drilling approx. 450 m,

- pipe jacking about 60 m,

- Laying cable conduit / cable conduit approx. 550 m.

Main measures of closed renovation:

- Hose liner DN 150 - DN 250 approx. 1 100 m,

- Hose liner DN 300 - DN 400 approx. 200 m,

- Hose liner DN 500 - DN 600 approx. 200 m,

- Hose liner connecting cables approx. 500 m,

- short liner / long liner approx. 180 pieces,

- punctual repair procedures, hat profiles approx. 50 pieces,

- Shaft rehabilitation approx. 40 pieces.