Třebovice tunnel on the Czech railways line in the section between Krasíkov and Česká Třebová - Zakládání staveb, a. s.

Třebovice tunnel on the Czech railways line in the section between Krasíkov and Česká Třebová


Třebovice tunnel on the Czech railways line in the section between Krasíkov and Česká Třebová

The Třebovice tunnel was designed and carried out within the process of optimisation of the railway line in the section between Krasíkov and Česká Třebová. The tunnel solves crossing of the line with the I/14 road and the original railway line and tunnel. It is 95 m long with overburden thickness of 0,6 to 2,3 m, situated in neogenous, highly plastic clays that induce extensive pressures on the tunnel walls when saturated with water. For that reason the tunnel walls were designed from 800 mm thick and 24 m long diaphragm walls, strutted at the roof level with a reinforced concrete plate of 1200 mm in thickness and under the rail bed with a 1000 mm thick reinforced concrete plate. Excavation of rock from the tunnel profile was carried out under the roof plate strutting. The tunnel bedrock was drained by geo--drains and the subsoil rock was stabilised by jet grouting and surface-flat mixing with inert material, lime and cement. Pre-portal cuts on both sides of the tunnel are 170 and 80 m long and they are secured with diaphragm walls of the same structure as in the tunnel part; during the construction these walls were partly anchored and partly strutted by pipe struts. Strutting of the sheeting structures in the cut bottoms is secured in the same way as in the tunnel – with a 1000 mm thick reinforced concrete plate.


Measures

Diaphragm walls 800 mm thick: 14 348 m2,
Re-drilled piles ø 1200 mm: 1203 m,
8-strand ground anchors: 84 pcs,
Steel pipe struts:: 44 pcs,
Jet grouting: 11 804 m,
Geo-drains: 1685 m,
Reinforced concrete plates for roof and bottom: 7493 m3,
Backfilling of the old tunnel with ash cement: 5838 m3,
Crystalline hydro-isolation: 12 499 m.

Client

ŽS Brno Co., Burešova 17, Brno

Investor

Czech Railways Co., nábř. Ludvíka Svobody 12, Praha 1

Price

Year

9,36 mil. EUR 09/2004–07/2005
  • Searching for references
  • Type of construction : Traffic projects
  • Country : Czech Republic
  • Financial volume : 100– more mil. Kč
  • Completion date : 2006-2010
  • Supporting technologies : Diaphragm walls

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

GDPR Privacy Policy
Company logotype

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.

mapa pasiv1