Meeting

Young Geotechnical Engineers Night and Annual General Meeting

A number of young geotechnical engineering graduates and students will individually give a 10 minute presentation on a range of interesting projects. Members of the Committee adjudicated and the winner(s) were presented with a certificate and a cash prize from a total pool of $300. The winner was Yun Hang Chok (Uni. of Adelaide). Aaron …more

Geotechnical Aspects of the Alice Springs to Darwin Railway

The Alice Springs to Darwin Railway Project was one of the largest infrastructure projects undertaken in Australia and completes the latest link in Australia’s rail network. The project comprised over 1420 kms of earthworks and tracklaying, 97 bridges, 57 major railway cuttings (> 5 m deep), over 1,000 culverts, 2 million tonnes of ballast and …more

Collapsing Soils from Australia and Thailand

The presentation defined the nature of collapsing soils and how such soils may be identified. Case studies of the unwanted effects of such soils on buildings were presented. The composition and comparative behaviour of four collapsing soils were discussed, one of the soils being a red brown loess from Thailand. The remaining soils were from …more

Wind Farms and Tall Structures

Several speakers provided presentations on geotechnical aspects of wind farm and transmission line projects recently completed in South Australia. Getting the foundation investigation and design wrong for these unique tall structures may have significant consequences.

Rissa and Pizza

A drammatic and fascinating landslide occurred in the Norwegian town of Rissa in 1978. It was a retrogressive landslide in the notorious quick soils of Scandinavia and Canada. In this superb 45 minute, NGI Norwegian Geotechnical Institute produced video, drammatic footage of the landslide was preseted as it unfolded, as well as rescue operations and …more

Flexible uPVC Pipes in Trenches with Stiff Clay Walls Subjected to Construction Traffic

This presentation described numerical modelling of field tests involving traffic loading on flexible uPVC pipes buried in sand within trenches formed in stiff clay. The tests were part of a commissioned program to verify safe cover heights for the spirally-wound, uPVC pipes. The modelling was performed using three-dimensional finite elements with the backfill soil represented …more

Reliability-Based Geotechnical Design

In an effort to harmonize with structural codes, geotechnical design codes around the world are beginning to migrate towards some form of reliability-based design (RBD). Significant steps in this direction can be found in, for example, Eurocode 7 (1997), Australian Standard AS 4678 (2002), NCHRP Report 24-17 (2002) and the Canadian Foundation Engineering Manual (2004). …more

Geotechnics – The Hidden Face of Civil Engineering

Professor Harry Poulos will present an introductory talk on geotechnics, an important part of civil engineering. The talk will be illustrated by several case examples, and geomechanics will be of great interest to university students and geotechnical professionals alike. Professor Poulos has an impressive background in both academia and the profession. A large number of …more

Kaiapit Landslide, Papua New Guinea

An exceptionally large compound rockslide, with estimated volumes between 1.3 and 2 billion m³, occurred in the Saruwaged Range, Papua New Guinea on the 5th September 1988. The rockslide developed into three major debris avalanches which flowed some 6.5 km down two river valleys and covered an area of about 11 km³, killing seventy four …more

Who Needs Constitutive Models?

The lecture will chart the development of constitutive models used to represent the mechanical behaviour of soils and provide an overview of the principles and the main features of exsiting, widely used constitutive models for soil. The clear intention is to emphasise the physical basis of these models, rather than their mathematical complexity.

Eureka Tower, A Bored Pier Foundation Story

The Eureka Tower Project is a 300 m high 88 level residential building, constructed in the Southbank precinct of Melbourne, Australia. The site is underlain by complex geology, including near surface soft clays, a shallow layer of Quaternary Age basalt which covers part of the site, a lower very high strength basalt layer at about …more

Recent Applications of “Square” Impact Roller

Impact Roller technology has been available in South Australia since 1985, and it has found use in a wide range of applications. Examples of some of these show the breadth of innovative projects and how the South Australian civil and geotechnical fraternities have mebraced the concept.

The Application Of Innovative Ideas To Solve Challenging Groundwork

Human beings have a hunger for continuing improvement in the quality of life. In this modern world, there will be an increasing demand for buildings, transportation systems, mineral mines and various infrastructures associate with natural resources and manufacturing industries. Reducing cost is essential, but building sustainable and environmentally friendly developments is equally important. In Australia, …more

NPER Specific Area Of Practice Landslide Risk Management

The development of a specific area of practice for Landslide Risk Management (LRM) within the National Professional Engineers Register (NPER) is in response to requirements of legislation and is a means for practitioners to demonstrate competency as required by such legislation. Each piece of relevant legislation is similar in that they all require practitioners to …more

CRUISING: The Redevelopment of the Port

This will be a cruise up the Port River from Queens Wharf to Outer Harbour and return in the motor launch the Archie Badenoch, operated by volunteers from the SA Maritime Museum. There will be short pauses and presentations at items of interest, with respect to the speakers’ agenda. Jack Rollinson – Redevelopment of Port …more

Deep Foundations, Excavations and Retaining Walls in South Australia

We are all aware that much of the soil in the greater Adelaide Metropolitan area excavated for deep foundations, excavations and retaining walls is unsaturated clay. The strength, stiffness and volume of these clays are greatly influenced by their suction which, in turn, is affected by environmental conditions. These characteristics necessitate a different approach to …more