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Three-Dimensional Seepage Flow Analysis of Slurry Shield with Permeable Filte…
The filter cake on the tunnel face has a significant influence on project of the slurry-driven shield. During the excavation, only permeable filter cake is allowed to form because the rotating speed of cutter wheel is fast. Through the filter cake, the water of slurry will infiltrate into the soil. The water enhances the hydraulic head and the risk the failure of tunnel face. In order to determ…
Site investigation and construction of the Liverpool loop and link tunnels
The site investigation and the construction records for the Liverpool Loop and Link underground railway tunnels have been compared to see what lessons of good practice in site investigation emerge. The tunnels were constructed almost entirely within Triassic sandstones generally ranging in strength from weak to moderately strong, enabling roadheaders to be used effectively for most of the excav…
