Civil Engineering Reference
In-Depth Information
-
in the southern end wall - where the tunnel boring machines were
received - the blind ring openings were closed with a low-strength mortar;
-
in the northern end wall, the openings for the future driving tubes were
closed by means of a reinforced concrete diaphragm wall with a thickness
of 500 mm.
Fig. 8.8
Diagrammatic
representation of
immersing caisson
Diver's air
lock
Discharge
of mud
Stairwell
Supply
of water
Temporary
lock walls
Discharge
of mud
Spraying
sand loose
Extracting
mud
Cutter
Fig. 8.9
Construction of
the caisson
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