Collectors Centre I. A securing of driving works on the collector service connections - Zakládání staveb, a. s.

Collectors Centre I. A securing of driving works on the collector service connections


Collectors Centre I. A securing of driving works on the collector service connections and carrying out connection drillings

After termination of works on securing the calotte and stope sides of the principal and secondary branches of the collector Centre I.A - section Vodičkova, stretching to the total length of 1250 m, the Zakládání Staveb Co. carried out the next phase - securing the collector service connections. As with the principal branch these driven connections were secured with jetgrouting creating steadily a compact envelope from jet-grouted columns of 600 mm in diameter in the stope roof. Every service connection is secured at two altitudinal profiles to the full length of the driven section (not by individual sections). Maximum length of the driving secured in this way is 15 m. From the finished collector service connections the factual connection drillings were then carried out, linking the collector with individual buildings at the surface level. The drillings lead either to the surface in front of individual buildings or to their respective sub-basement area. The connection drillings were realised as set upward drillings of 100, 200, 300 mm in dia. The maximum drilling length reaches up to 19 m.

Measures

Service connections:  
Jet grouting Ø 600 mm: 2445 m
Drills for micropiles: 98 m
Connection drillings:  
Ø: 100 mm:
Ø: 200 mm:
2231 m
2994 m
Ø: 300 mm:
Ø: 400 mm:
251 m
6 m

 

Client

The consortium of Subterra Co., (Bezová 1658/1, Praha 4),
Metrostav Co., (Koželužská 2246, Praha 8)

Investor

The City of Prague, Mariánské nám. 2, Praha 1

Price

Year

1,61 mil. EUR 2004–2006



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  • Type of construction : Underground projects
  • Country : Czech Republic
  • Financial volume : 10–50 mil. Kč
  • Completion date : 2006-2010
  • 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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Reception desk

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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