South Australia & NT Chapter

Deep excavations in soft ground using temporary structural steelwork

Christopher Daniel

In many city areas, ground anchors and soil nails cannot be used for deep excavation retention in soft ground due to construction constraints including adjacent structures. A solution often used I braced excavations involving temporary structural steelwork, serving multiple functions, like strutting, waling, lagging, traffic and construction decking.

Based on Chris’s design and supervision experience on underground metro station, rail, expressway and commercial mall projects in Singapore, his presentation discusses the design, construction and monitoring of steelwork applications in deep excavation environments. In many city areas, ground anchors and soil nails cannot be used for deep excavation retention in soft ground due to construction constraints including adjacent structures. A solution often used I braced excavations involving temporary structural steelwork, serving multiple functions, like strutting, waling, lagging, traffic and construction decking.

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