oa Civil Engineering = Siviele Ingenieurswese - Excavation through saturated decomposed granite by multiple headings with vacuum drainage
|Article Title||Excavation through saturated decomposed granite by multiple headings with vacuum drainage|
|© Publisher:||South African Institution Of Civil Engineering (SAICE)|
|Journal||Civil Engineering = Siviele Ingenieurswese|
|Author||L.W.** Matchett, J.M.* & Pringle|
|Publication Date||Apr 1988|
|Pages||179 - 184|
|Keyword(s)||Du Toitskloof Tunnel, Ground behaviour, Second bore and Vacuum drainage|
The initial 150 m of the second bore of the Du Toitskloof Tunnel was driven through soft decomposed granite by a method of multiple headings with vacuum drainage. By comparison, excavation of the soft-ground section of the first bore was done by ground freezing.
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