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Subway Lot 31 - Frankfurt/Main

Owner:
Client:
Service:
Value Engineering / Alternative Design
Estimated cost: Commencement:
July 01, 1980
Completion date:
June 01, 1984
Location:
Frankfurt/Main , Hesse
Germany
Technical data:

Three single track tunnels, L = 350 m each.

Geology description:

Frankfurt Clay (silt and sand), waterbearing.

Categories:
Service areas:
Description

Immediate backfill with excavated material at the face. Shotcrete stabilisation at the sink hole (15 cm). Filling of sinkhole with excavated material. Drift trough sink hole with rebar spiling as additional support.