oa Civil Engineering = Siviele Ingenieurswese - N2 upgrade - taming the uMdloti : geotechnical engineering
The first phase of the upgrade of the N2 Freeway Section 26 has seen extensive geotechnical works. A feature of this phase of the project included the widening of the dual uMdloti River viaducts. The viaducts are founded on 45 m deep piles that required subcontractor Keller-Franki to import a massive Bauer BG28 rig for the project. The project also included over 2 km of fabric-reinforced mechanically stabilised earth walls and 2 km of cut retaining walls. This article discusses some of the more interesting facets of the geotechnical components of the project.
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