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  • Basic Design for the Collection, Evacuation and Treatment of Wastewater for Tourist Resort "Kopaonik" - Phase I

    Wednesday, 16 January 2013 12:43
  • Study of Underground Sources of Water Supply for the General Plan of the City of Leskovac, 2010-2020

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    Monday, 16 August 2010 14:36
  • Interceptor Sewer Between the Danube/Sava Confluence and the Veliko Selo Suburb of Belgrade

    Friday, 02 July 2010 17:18
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    Monday, 16 August 2010 14:38
  • Preliminary Design for Wastewater Collection, Evacuation & Treatment at the Jabučko Ravnište Resort

    Monday, 16 August 2010 14:44
  • Feasibility Study and Environmental Impact Assessment for the Wastewater Project in Nikšić

    Monday, 16 August 2010 14:42
  • Prefeasibility Study and Master Plan for the Belgrade Sewerage System

    Monday, 16 August 2010 14:42
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Projects Interceptor Sewer Between the Danube/Sava Confluence and the Veliko Selo Suburb of Belgrade
Interceptor Sewer Between the Danube/Sava Confluence and the Veliko Selo Suburb of Belgrade PDF Print E-mail
Interceptor Sewer Between the Danube/Sava Confluence and the Veliko Selo Suburb of Belgrade (Section from km 5+587 to km 12+639)

altClient: Building Land and Construction Directorate of Belgrade
Field Work Contractors: Hidrotehnika-Hidroenergetika Corp. and Fairbuild LLC
Chief Design Engineer: Milan Tričković, MSc, CE
Design Engineers: Milutin Đurković, CE; Aleksandra Stanojević, CE

The function of this interceptor sewer will be to evacuate wastewater from Belgrade’s central sewer system and deliver the wastewater to a wastewater treatment plant at Veliko Selo. The objective is to ensure appropriate wastewater evacuation over the next 50 years.

 

 

The basic characteristics of the interceptor sewer are:

а. Drained surface area: 28,000 hectares (or 85% of total urban service area);
b. Collection of wastewater and a portion of stormwater from:
- New Belgrade (via the “Confluence” pumping station),
- The southern portion of the central system (via a tunnel), and
- The area around Danube Street (via the “Port” pumping station);
c. Estimated population: 1.15 million (1.2 million in 2021)
d. Maximum discharge during dry periods:  8.950 l/s
е. Total length of interceptor sewer:  12,639 m
f. Clear inner diameter: 410 cm (excluding inner waterproofing)
g. Gradient:  0.5%.

altPrior to 1990, two small, separate sections were constructed, ending at km 5+867. In 2006, 60 million € in funding was procured to continue construction. Work on the section from km 5+867 to the future WWTP began in 2007, from the downstream end. JCI is now preparing final design and construction documents addressing:

  • The tunnel section (6653 m long);
  • The final section (217 m long);
  • Connecting sections, inspection manholes and vents for the tunnel section;
  • TBM assembly and entry shaft, at km 12+520.30;
  • Exit shafts at km 5+867 and km 6+800 (for TBM dis-assembly and removal);
  • A structure under the Mirijevo Creek;
  • Monitoring of the section from km 5+867 to km 12+639;
  • Geological tests during the course of tunneling;
  • The construction site (for the accommodation of TBM support facilities and fabrication of concrete tunnel lining, including access roads and other site facilities);
  • A dock (for transportation and communication with the site across the Danube).

The construction site, end section, TBM assembly shaft and dock were completed in 2007 and tunneling began in 2008. 

Technical characteristics and construction conditions:

  • Length of section under construction: 6.772 m;
  • Highly-complex geological setting;
  • TBM used to tunnel an RC-lined section: 6 segments, thickness 24 cm, ring length 1.4 m;
  • TBM assembly and entry shaft: more than 8 m deep, base 20.8 х 9 m, membrane protected;
  • Open excavation of end section, horizontal curve diameter 450 m, clear inner width 4.3 m, and max. depth 6.5 m;
  • Construction site platform built using 88,000 m3 of filling material.
 

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