Free-fall penetrometers: cost effective offshore site investigation tool
Malaysian Theatre, Basement B121
Glyn Davis Building (Melbourne School of Design)
Guest seminar by Dr Shiaohuey Chow, University of Western Australia
Free-fall penetrometers (FFPs) – a new generation of offshore site investigation tools - offer significant potential as a cost effective solution to characterise seabed properties. FFPs are instrumented projectiles that are deployed by allowing them to free fall and embed into the target sediment. The use of FFPs in offshore geotechnical site investigation has gained increased interests, particularly in characterising the soil strength of shallow seabed crucial for applications such as pipeline design and submarine landslide survey. This seminar will present a centrifuge study of a model FFP in clay and an improved FFP interpretation to estimate soil strength and consolidation properties. The seminar will also cover the development of a prototype FFP and assessment of its performance through field trials in the Swan River, Perth.
Dr Shiaohuey Chow , Research Fellow
Dr Shiaohuey Chow
University of Western Australia
Shiaohuey Chow is a Research Fellow at the Centre for Offshore Foundation Systems (COFS), University of Western Australia since 2013. She is an experimentalist in geotechnical engineering with more than 15 years of experience in soil element testing, 1g geotechnical physical modelling, centrifuge modelling and field testing. Her research in offshore geotechnics have produced both fundamental and practical outcomes for offshore site investigation and energy industry. Her research interests include freefall penetrometers, strain rate effects in soil, dynamically installed anchors and plate anchors in sand. Her works have received several international best paper awards in the last 5 years, including the Telford Premium Prize and Manby Prize from the Institution of Civil Engineers (ICE), UK.