Annual General Meeting and Annual Dinner

Annual General Meeting The AGM will include reports from the Chairman and Treasurer followed by elections for the 2011 committee. Chairman’s Address: An Expert System Approach to the Identification of Geological Uncertainty Outgoing chair Darren Paul will briefly present an overview of his work into the development of an expert system aimed at communicating concepts …more

In-Situ Testing, CPTU: Theory, Application and Interpretation

The course aims to educate professionals working in geosciences, environmental sciences and civil and mining construction in the field of in-situ testing. Often overlooked as a tool or method to obtain information about the sub-surface conditions, this one day course aims to provide a basis and appreciation of the possibilities of in-situ testing in general …more

Geotechnical Challenges for Development in the Hunter Region

Newcastle and Hunter Region contain a diverse range of geological conditions which provide a variety of challenges for development including settlement due to consolidation of deep soft soils, reactive soils, slope stability and mine subsidence issues. The AGS Newcastle chapter is proud to present the attached symposium which will have specific relevance to the engineering …more

Annual General Meeting & Annual Dinner

Geotechnical Challenges on Western Highway Anthony’s Cutting Realignment Chris Boyd Chris will discuss the geotechnical challenges and issues faced for the design and construction of a new highway between Melton and Bacchus Marsh. The new highway is about 5km long and the topography varies by more than 40m along the alignment. The regional geology is …more

50th Rankine Lecture: Stiffness at Small Strain – Research and Practice

The rapid development of computing power and numerical modelling software over the past forty years has made sophisticated analysis of geotechnical problems accessible to most practising engineers. Typically computer packages now offer a wide range of constitutive models, which the design engineer needs to choose between, and then obtain parameters for. For those structures designed …more

The Lessons From The Yallourn Inquiry

The northern batter of the Yallourn mine collapsed suddenly on the 14th November 2007. The collapse had dramatic consequences with loss of 20% of Victoria’s power generation capacity and a cost to the mine measured in hundreds of millions of dollars. Because this was a surprise to government and because of the consequences, the government …more

Piling Rig Bearing Pressure and Design of Construction Working Platforms

Safety is the main concern of all of us involved in construction, where one fatality, or even one incident, is one too many. In recent years, incidents involving overturning of piling rigs and cranes on construction sites have led to an increased awareness of the importance of providing a stable working platform for construction plant. …more

Soil and Rock Logging – AS1726 Geotechnical Site Investigations

The course aims to educate geotechnical engineers, geologists, geotechnicians and other relevant professionals such as civil and structural engineers, who find themselves logging and/or interpreting soil and rock logs in accordance with AS1726 – Geotechnical Site Investigations. The content assumed that the participants already have a basic understanding of soil and rock logging. The course …more

Concepts & Parameters Related to Ground Improvement Illustrated by Case Histories

The International Society for Soil Mechanics and Geotechnical Engineering (ISSMGE) Technical Committee on Ground Improvement has proposed a classification system of ground improvement techniques according to the general nature of the soil, (frictional or cohesive) and the inclusion or not of added material ( This classification system has been detailed in the state of the …more

2009 E.H. Davis Lecture: Recent Advances in the Application of Vertical Drains and Vacuum Preloading in Soft Soil Stabilization

Much of the world’s essential infrastructure is built along congested costal belts composed of highly compressible and weak soils up to significant depths. Alluvial and marine soft clay deposits have very low bearing capacity and excessive settlement characteristics, with direct design and maintenance implications on tall structures, large commercial buildings, as well as port and …more

March 2010 edition of Australian Geomechanics ‘Geotechnology of Victoria’

Changes of Thornthwaite’s Total Moisture Indices in Victoria from 1948-2007 and the effect on seasonal foundation movements Dominic Lopez (USL Group Pty Ltd., Emerald, Victoria) C.W. Thornthwaite first presented the Total Moisture Index (later known as the Thornthwaite’s Moisture Index, TMI) in 1948. This paper presents the TMI values calculated for Victoria, and shows that …more

New Piling Code AS 2159-2009

Do you know the implications of the new piling code? The new piling code ‘AS 2159-2009 : Piling – Design and installation’ was released in November 2009. The revised Code will incorporate some major rethinking in respect of pile design and testing, which is expected to require significant changes from consultants and piling contractors. We …more

AGS Newcastle City Geology Tour

The AGS Newcastle City Geology Tour is loosely based on the excursion given in Field Geology of New South Wales by Branagan and Packham (2000), and Dr. Branagan himself has kindly agreed to offer his expert commentary at the various destinations.  The morning component of the tour (approximately 8:00-12:00) will commence at King Edward Park …more

Geotechnical Investigation and Design for Foundation Engineering Works

For years geotechnical practitioners have commented on the failure of clients to appreciate the value of good site investigation and the benefits of obtaining more detailed information. Some of the benefits of a good ground investigation coupled with appropriate experience, analysis and design in foundation engineering projects are potential savings in construction costs, potential for …more

Drilled Shaft Instrumentation for O-cell Tests

In this talk the general requirements for O-cell instrumentation will be presented, including the differences in instrumentation required for O-cell bi-directional static load tests to conventional load tests, purpose and numbers of various embedded instruments, parameters that need to be measured, instrumentation for additional geotechnical parameters, calculation of plate movements – single level and multi …more

41st Karl Terzaghi Lecture: Unsaturated Soil Mechanics in Engineering Practice

Unsaturated soil mechanics has rapidly become a part of geotechnical engineering practice as a result of solutions that have emerged to a number of key problems (or challenges). The solutions have emerged from numerous research studies focusing on issues that have a hindrance to the usage of unsaturated soil mechanics. The primary challenges to the …more