Route 5: Steel Fibre Shotcreting in Shing Mun Tunnels Hong Kong—Specifying for Innovation

by A. Bergfors, Gammon-Dragages-Skanska Joint, Venture, Hong Kong,
R. Coates, Gammon-Dragages-Skanska Joint, Venture, Hong Kong,
S. Ostfjord, Gammon-Dragages-Skanska Joint, Venture, Hong Kong,

Document Type: Proceeding Paper

Part of: Shotcrete for Underground Support V


The Shing Mun tunnels form the central 2.6 km length of the Route 5 Highway connecting Tsuen Wan and Sha Tin New Towns, Hong Kong. The crossing of one of the areas was particularly difficult, as the ground was saturated and constantly falling away. The technique successfully adopted relied, in part, upon shooting a dry mix through mesh, wedged in place, and building upto thickness with steel fiber reinforced shotcrete. Dry mix was particularly used on nightshift, to avoid generating noise from the site batcher.

Subject Headings: Steel fibers | Material mechanics | Tunnels | Innovation | Compressive strength | Fiber reinforced composites | Fabrics | Reinforced concrete | Hong Kong | China | Asia

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