Innovation in piled foundation design, Perth

11 May, 2017 | 17:30 - 19:30

A look into the foundations of tall buildings.
A look into the foundations of tall buildings.

About this event

This talk presents the design of a raft enhanced pile group recently constructed for a hotel development in Perth, WA. At the time of construction in 2016 the hotel was the tallest prefabricated hotel in Australia.

The structure covers the entire 12 m by 32 m development footprint, located in an inner city environment, and directly surrounded by existing structures. The small site and lack of space required innovative thinking in terms of the substructure design.

The ground conditions comprise a layer of medium dense sand underlain by variable layers of stiff clay, silts and sands. Groundwater was around 1.5 m below the finished floor level of the hotel.

The substructure design was carried out on the basis of a raft enhanced pile group. This allowed the use of much shorter piles than a conventional pile solution, thereby permitting the adoption of CFA piling techniques. This also allowed the raft thickness to be reduced to where the substructure works were maintained above the groundwater level.

17.30pm to 19.30pm, talk starts 18.00pm.


For more information and to book, please contact:

Wayne Leslie
t: 0407 946 658

Event materials

The following materials are available for download:


Craig Butterworth

Craig is director and principal geotechnical engineer at CMW Geosciences. He has over 20 years' experience in Australia, UK and the Middle East, since arriving in Australia in 2010 he has worked on a large number of prominent schemes within Perth and WA, including Elizabeth Quay, Perth City Link, Old Treasury Building, King's Square Precinct and numerous other building developments.

Lucie Spencer

Lucie is Senior Geotechnical Engineer at CMW Geosciences. She holds MEng (Hons) degree in Civil Engineering from City University London (UK). She has seven years' experience within the construction industry. Lucie has worked in London for five years involved mainly in design of piling and foundation systems and construction of deep. Lucie joined CMW Geosciences in June 2014 and has since been involved in number of high profile developments within Perth and WA.