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Munich – Passing under Würm Institutstraße

District heating installation by special underground construction (in groundwater)

Vesting period:
Construction time period:
Pipe diameter:
Protective tube:
Length of open face shield:

10/2009 until 12/2009
03/2010 until 10/20010
2 x DN 400 preinsulated pipes
2 x DN 800 reinforced concrete pipe
2 x ca. 28,00 m

Details
Excavations:
x
x
Propulsion method:
x
x
Groundwater level:
Pipe overlap:

x
Drilled shafts by means of secant piles DN 900;
Sole sealing with underwater concrete sole
Open Face Shield by liquid-supported
Working face (Bentonit)
ca. 4,0 m over Pipe
10,50 m

Services
Revealing hole / soil investigation
Implementation planning for Underground and Pipeline Construction
Water right application / dimensioning groundwater conservation
Implementation planning reinforced concrete
Superior construction supervision