A Case Study of Retaining Walls
Abstract
This paper presents a case study of the temporary and permanent retaining, and cut and cover structures used for the Cooks River Crossing on the M5 East Motorway extension project in Sydney. The cut and cover river crossing tunnel comprised cast in-situ diaphragm walls and roof slab constructed inside three temporary cofferdams. Geotechnical aspects of the design, construction and performance of temporary and permanent works are reviewed along with unique challenges including a fragile heritage sewer, a major dyke and very soft estuarine sediments.
Author
Phil Davies
Sinclair Knight Merz