Civil works for raw water pipeline dam Prvonek – PPV Kumarevska cuka (Vranje)

PROJECT DESCRIPITON

The old regional raw water pipeline DN600 was worn out and it was necessary to replace it with new DN800 ductile pipes. This solution reduced the apparent losses of water on the route to the 'Kumareva Chuka' drinking water treatment plant and increased the capacity of the water supply. A more efficient drinking water supply for a large part of the Pcinja District was ensured.

WORKS DESCRIPTION

The project had two parts:

Task 1 - Construction of the regional raw water pipeline

Performed quantities

- Ductile Cast iron Pipes(with internal retaining chamber) DCI DN 800 mm, PN16: L= 3.950 m’

- Excavation works: 188.594,29 m3

- Installation of 0,8m thick and 1.20m width layer from granulated broken rock grainsize 200<d>400 mm, built in cement mortar on a layer fresh concrete with minimal thickness of d=10cm: 2.330,62 m3

- Broken Stones Layer 400<d>600mm: 965,56 m3

Task 2 - Construction of the Metering and regulating station (MRS)

Performed quantities

- Flow Capacity of MRS: 300-500 l/s;

- Main equipment: One main electromagnetic needle valve DN 700 mm, and reserve electromagnetic needle valve DN 500 mm;

- Automatization: PLC software for controlling and regulating the flow from MRS building and from ''Prvonek'' Dam Control Center, as well as flow output info at WTP ‘’Kumerevska Čuka’’;

- Steel pipe installation, DN700 (Ø711x7.1), PN10: L=19 m’

Amounts:

- excavation approx. 188.000,00 m3

- installation in concrete of semi-processed stone of size 200-400 mm, 2.330,00 m3

- installation of semi-processed stone of 400-600 mm size, 965,00 m3