Collectors Centre I. A — Vodičkova line — driving of the service collector main line - Zakládání staveb, a. s.

Collectors Centre I. A — Vodičkova line — driving of the service collector main line


Collectors Centre I. A — Vodičkova line — driving of the service collector main line

Works carried out in the underground consisted mainly in the following activities:

Securing driving works on the calotte and stope sides of the collector in soft soils (sands and/or coarse gravels) with an envelope made of upward jet-grouted columns.

Securing driving works on the calotte of the collector stope in rock and semirock grounds with an upward micropile grate. The grate was made of steel micropiles with pile axial spacing from 250 to 450 mm. The micropiles were grouted to their full length with cement grout. Securing of the driving was carried out by segments with the maximum length of the sanitation envelope from jet-grouted columns and micropile grate up to 14m. In soft fine-grained soils where the use of jet-grouting could threaten the functioning of underground services, chemical grouting based on sodium silicate and reactive was used instead.

Measures

Jet-grouting (M1) 600 mm in diameter: 22 738 m
Drills for micropiles: 20 732 m
Drills for chemical grouting: 638 m

 

Client

Sdružení Subterra, a. s., (Bezová 1658/1, Praha 4),
Metrostav, a. s., (Koželužská 2246, Praha 8)

Investor

Hlavní město Praha, Mariánské nám. 2, Praha 1

Price

Year

4,5 mil. EUR 2004–2005



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  • Type of construction : Underground projects
  • Country : Czech Republic
  • Financial volume : 100– more mil. Kč
  • Completion date : 2001-2005
  • Supporting technologies : Jet grouting

Basic data
Administrative address

Zakládání staveb, a. s.,
Dobronická č.p. 1371
148 26 Praha 4

 

E-mail general: info@zakladani.cz
E-mail for offers: zakazka@zakladani.cz
Data box - ID: 44utdij

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Zakládání staveb, a. s.
K Jezu 1, P. S. 21
143 01 Praha 4 - Modřany

ID Number: 49241567
Tax ID Number: CZ49241567

Company registered in the Commercial Register at the Municipal Court in Prague, Section B, Insert 2139.

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