2007 Meetings

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

Rankine Lecture Tour: Soil-environment interactions in geotechnical engineering

The range of problems that geotechnical engineers must face is increasing in scope and complexity. Some examples are the collapse of unsaturated soils, foundations on expansive clays, tunnelling in sulphate bearing materials, control of subsidence due to oil or gas extraction, and containment of toxic or hazardous waste. In addition, potential climate change may pose …more

Showcasing Young Geotechnical Professionals And Students

Each speaker will have up to 15 minutes for a presentation of their chosen topic, to be followed by questions. Presentations need not be overly technical or theoretical, and may focus upon any aspect of geotechnical research or practice, which is of interest to the profession. At the end of the evening, a panel of …more

Site Visit: North Para Flood Control Dam

You are invited to a site visit of the construction of North Para Flood Control Dam; a 30 m high dam constructed of Roller Compacted Concrete across the North Para River. Short presentations will be provided by project staff on the geomechanics and construction aspects of the project. The AGS acknowledges the support of the …more

Geotechnical Aspects Of Railways

PRESENTER 1: Derek Arnott, URS, Adelaide Office Derek will present examples of railway earthwork remedial schemes undertaken in the UK. A variety of remedial schemes will be discussed including slope drainage, soil nails, gabions and slope stabilising piles. PRESENTER 2: Wayne Potter, Australian Rail Track Corporation Wayne will present his talk on Geotechnical Engineering in …more

Dealing with Fill on Subdivisions

PRESENTERS: There are three presenters in all: Don Richardson, CPEng MIEAust Golder Associates Pty Ltd, South Australia “A GTA perspective on controlled fill, AS 3798, effective QA and risk management” Peter Bayetto, FIEAust, CPEng, RPEQ, NPER, EC FMG Consulting, South Australia “The stakeholder’s viewpoint; documentation and the superintendent’s role; fit for purpose?” Dr. Peter Mitchell, …more

Annual Visitors Night

The AGS committee has organised our annual visitors event for members and guests of the SA Chapter of the Australian Geomechanics Society to meet and be entertained in a social atmosphere. The AGS committee has also invited members of the AusIMM committee to attend this social event to foster closer relations between the two professional …more

Golder Associates Night: Soil Nailed Retention Design And Application

Soil nailed retention was first used overseas in France in 1972, and has since been used widely in Europe and the United States. It has been used in Australia on a number of road and freeway projects and building sites since the early 1990’s. Ivan will present a historical review of the use of soil …more

Screw Pile Anchors

Screwpiling has been used since the early 1990’s in Australia. Screwpiling is not new having been used in England in the 1830’s and in Indonesia by the Dutch in colonial days. Screwpiles can be used in piled foundations as an alternative to other piling systems. However, the strength of screwpiles is often limited by the …more

What Is Failure And Why Do Failures Occur?

Ground engineering is a risky business; there is much that can, and does, go wrong. Failures of construction in the ground can be more than just slips, excessive settlement or flooding. Sometimes failure of the ground is a requirement of the design. The talk will consider the nature of geotechnical failures in a wide sense. …more

Deep excavations in soft ground using temporary structural steelwork

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 …more