CL3.1: Emergency execution of safety and completion works for the partially rehabilitated sewer mains A0+B0 in Bucharest, Romania

Project Info

  • Completion Date

    Completed: August 2022

  • Category

    Sewerage Networks

Project description

The project initiated by the Municipality of Bucharest, Romania, comprised of rehabilitation of the main wastewater collectors A0 and B0.

The rehabilitation works included: shotcreting, relining and joints sealing.

The total length of the rehabilitated collectors is 2.181,0 m, of which, based on the rehabilitation type, had the following lengths:

  • Shotcreting – 1.176,0 m
  • Relining – 503,0 m
  • Joints sealing – 502,0 m

The characteristic sections of the rehabilitated collectors were:

  • Shotcrete: rectangular 300 x 300 cm, rectangular 250 x 360 cm, bell 240/200 cm, egg-shape 160/240 cm;
  • Relining (GRP piping): egg-shape 160/240 cm;
  • Joint sealing: rectangular 300 x 360 cm, circular Dn180 cm.

The provided design works within the project did include:

  • Structural rehabilitation of the existing collectors;
  • Elimination of infiltrations in collectors;
  • Temporary works for project implementation such as access pit shoring, collectors dewatering, wastewater stream diversion, working site ventilation and lighting, site organization;
  • Permitting;
  • Technical assistance;
  • Contractor due diligence.