Case Study

Pregrouting with PUR resins, Ólafsfjördur and Siglufjördur tunnels

Pregrouting with PUR resins, Ólafsfjördur and Siglufjördur tunnels

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Pregrouting with PUR resins, Ólafsfjördur and Siglufjördur tunnels Underground tunnelling works executed in geologically difficult areas are a test for the experience and techno- logical capabilities of those undertaking the work. The Ólafsfjördur and Siglufjördur road tunnels in Iceland are two such examples. The combination of geological division, unfavourable stratification with a lot of geological faults and the ingress of cold glacial

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