Is selecting a TBM a puzzle?

Members of Melbourne Group and visitors are invited to attend our Technical Session on the puzzle of characterising ground conditions for, and selection, of a suitable TBM. The Technical Session will consist of two presentations. The first presentation by Andrew Campbell will outline the geological and geotechnical issues that affect tunnel design and construction methodology. …more

Geology and geomorphology of Port Phillip Bay

We are fortunate enough to have Mr Neville Rosengren back this year to guide another field trip, this time to the Bellarine Peninsula. Neville will give a presentation of the geology and geomorphology of the Bellarine Peninsula on Wednesday 11th May followed by a day trip on the Saturday to a number of selected sites …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

AGS Young Geotechnical Professional’s Night

The Young Geotechnical Professionals’ Night is an opportunity to see four selected presentations by young geotechnical professionals discussing interesting and challenging aspects of their work. After the presentations, you will have a chance to catch up with friends and the presenters over drinks and finger food, and see additional posters prepared by YGP’s. The following …more

Salinity in Western Sydney

Dryland Salinity is an issue that has become increasingly apparent with urban expansion across Australia, affecting buildings, infrastructure and the environment. This presentation covers an overview of the occurrence, salinity processes, engineering issues, investigation methodologies, assessment of impacts, design related management planning / reporting, monitoring and adoption of salinity techniques within DA certification requirements. The …more

Working Platform Assessments for Tracked Plant

Every year piling rigs fall over or are subject to near misses due to inadequately prepared or maintained site surfaces – often such incidents involve potential fatalities or serious injury to operatives and extensive damage to equipment. Modern piling equipment is becoming increasingly heavy, often with higher centres of gravity, to cater for the demand …more

Building 3D models of rock strength using geophysical logs

Through a series of projects funded by the Australian Coal Industry Research Association (ACARP), we have developed a rock mass rating scheme for coal measure rocks which draws upon the compositional data contained within the geophysical logs as well as the sonic data. The scheme is known as the Geophysical Strata Rating (GSR) and our …more

Suvarnhabhumi Airport – from Cobra Swamp to Golden Land

Planning for a new international airport at Nong Ngu Hao (Cobra Swamp) was on and off since the 1970s. Finally action started in about 1993 with site clearance, some perimeter bund walls, and design of ground improvement for airport pavements. Stephen Buttling was involved with this, and also with an unsuccessful bid to design the …more

Sustainable Development of Underground Space and the Reuse of Existing Foundations

It can be tempting to jump straight into the geotechnical aspects of a project without thinking about the bigger picture. Pressures for space mean that more developments are moving to marginal land such as soft soils, slopes, waterfronts and brownfield sites, each with their own particular set of geohazards. Rising land values and increasing congestion …more

Slurry Wall Construction Current Technology and Case Studies

Geo-Solutions Inc is a world leader in geotechnical construction, specialising in slurry walls. Geo-Solutions and Menard Bachy as a partnership have completed numerous successful Australian projects including remediation of the former BHP Site in Mayfield. We are fortunate to have Chris in Newcastle in March to deliver a presentation outlining the latest slurry wall technologies …more

2009 Rankine Lecture: Geohazards & Large Geographically Distributed Systems

Geotechnical engineers play a critical role in managing the performance of large geographically distributed systems that are affected by geohazards such as earthquakes, floods, hurricanes, and landslides. Systems, such as water supplies, levees, and gas and liquid fuel supply networks, may cover thousands of km2 and may be subject to many different ground response and …more

Highwall Slope Stabilisation by the Softwall Method

Highwall slope instability related to large pit-ward dipping thrust fault occurred in a large strip coal mine in the Bowen Basin, Queensland. The inability to identify the location of thrusts and predict potential instability proved difficult. A series of highwall instability events developed into a 700m-long tension crack located 80m from the crest, resulting in …more

Developments in Transportation Geotechnics

The purpose of this seminar is to inform engineers about developments in geotechnical investigation and design for major projects. In accepting our invitation to open this seminar Luigi Rossi, Director of the South Road Superway project, writes: “I started working for the Highways Department constructing the Swanport Bridge in 1978. Since that time I have …more