"""<span class=""""zahl_bildunterschrift"""">1</span>   Left: Tunnel-soil interaction. Middle top: Compressible cementitious layer and a compressible annular gap grout on the lining segment. Middle bottom: Typical mechanical behavior of the compressible materials. Right: Deformable tunnel lining (lining segment – compressible layer – compressible annular gap grout) with applied deformation (approx. 12 cm or 70% of the initial thickness of the compressible annular gap grout)"""
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