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International Database and Gallery of Structures

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Karlsruhe City Railway: Stability against hydrostatic ground water pressure

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Before constructing the city tunnel in Karlsruhe, impermeable excavation enclosures had to be built in several sections due to the high ground water levels.

To tie back the different retaining walls, 457 semi-permanent and 572 temporary strand anchors were installed.
: To tie back the different retaining walls, 457 semi-permanent and 572 temporary strand anchors were installed.

The strand anchors have a total length of nearly 24 km.

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