Meeting

AS2870 – 2011, Residential Slabs and Footings

What should the geotechnical profession know about the changes in the Code? The Code gives references to parties their functions and responsibilities to using the code. An example is the Classifier and Qualified Engineer. Reference is made to role of Engineering Geologists and Geotechnical Engineers. To understand the responsibilities of the qualified engineers using the …more

Quality Assurance of ground improvement using down-hole video techniques

Verification of ground improvement is a topic of on-going debate. The tried and tested methods are limited in certain conditions and the geotechnical fraternity is always exploring new avenues for verification. The use of down-hole cameras has become far more readily available as the technology advances and the camera size decreases. This presentation highlights the …more

The Mystery of Unsaturated Soils

Unsaturated soil mechanics continues to play poor relation to saturated soil mechanics, in part because of the dominance of conventional soil mechanics approaches involving saturated conditions, perhaps because the inclusion of another phase (air) adds considerable complexity, and because a soil at a given density is stronger, less compressible and less permeable (i.e. performs better) …more

Introduction to the engineering geology of Hobart

The Tasmanian Chapter of the Australian Geomechanics Society is hosting an introduction to the engineering geology of Hobart. The format will be a field trip to sites of engineering geological interest between Lower Sandy Bay and Taroona. We will view many of the main geological strata present around Hobart including Permian, Triassic, Jurassic, Tertiary and …more

Management of a Highway Pavement for Subsidence Impacts from Longwall Mining

The first of a number of planned longwalls directly beneath a freeway, southwest of Sydney has been completed. After a lengthy planning period, the risks to the highway pavement were successfully managed by the road authority, the mining company and a Technical Committee including specialists in the fields of pavement engineering, geotechnical engineering and subsidence. …more

Technical Field Trip: Western Port

That Sinking Feeling… Western Port: highs and lows in a tectonic embayment The Western Port embayment is generally a low-lying area bounded by the Mornington Peninsula to the west and the South Gippsland highlands to the north and east. The landforms that make up the embayment initiated in response to tectonic activity during the Tertiary, …more

Evening Technical Meeting: Western Port

That Sinking Feeling… Western Port: highs and lows in a tectonic embayment The Western Port embayment is generally a low-lying area bounded by the Mornington Peninsula to the west and the South Gippsland highlands to the north and east. The landforms that make up the embayment initiated in response to tectonic activity during the Tertiary, …more

Rock Slope Design in Layered Rocks: Some Precautionary Tales

The coal mining industry requires slope designs in layered coal measures and other rocks on a routine basis. The scale of these slopes far exceeds that of slopes in comparable materials for civil purposes, yet the effort involved in design of mine slopes is comparatively minor. There are many reasons for these apparent discrepancies but …more

Mine Void Treatment on Hunter Expressway Alliance – A Success Story

Nick The Hunter Expressway is a new government funded dual carriageway motorway built to relieve congestion between Newcastle and Thornton, Maitland and Rutherford. The expressway is continuous over 40 km between the F3 at Seahampton and Branxton. The easternmost 13 km between the F3 and Kurri Kurri is being built by the Hunter Expressway Alliance …more

Student Research Projects

PhD Project: Track Degradation at Bridge Transition Zones, Biyanvilage Dareeju (QUT) Bridge transition zones experience early track geometry deviation due to sudden stiffness variation, geotechnical causes, and soil moisture fluctuation. Differential settlement between bridge and its approach is a critical issue for the railway industry and no efficient solution is yet available to maintain a …more

Queensland One Day Symposium: “Geotechnical Challenges and Lessons Learned”

Join us on Thursday October 3 at the Treasury Casino, Brisbane for the AGS Queensland Chapter’s One Day Symposium “Geotechnical challenges and lessons learned”. Our speakers for the day include: John Phillips, GHD Patrick Wong, Coffey Martyn Robotham, Rio Tinto Jeremy Kruger, Thiess Peter Mitchell, Aurecon Chris Haberfield, Golder Associates Sponsors Platinum Sponsor Gold Sponsor …more

Groundwater in Mining

Groundwater assessments are an integral part of almost every mining project. When a void (mine) is developed below the water table, groundwater will ingress to fill the mine void. A hydrogeological assessment is undertaken in order to ascertain the quantum of likely inflows and to evaluate the most appropriate dewatering / groundwater control measures to …more

Development in Pile Testing

Australia probably qualifies as one of the countries which carry out the lowest number of static pile load tests each year. When a contractor was asked in 2007 “How many pile load tests have failed to reach their design capacity?” he replied, “I don’t know, we don’t do any”. The Osterberg Cell, or O-cell test …more

Geotechnical Site Exploration and GeoEngineering Education in 2013 and Beyond

The best available program for geotechnical site exploration involves a blend of rotary drilling and sampling operations, laboratory testing, in-situ field tests, and geophysical measurements, all taken within the context of engineering geology. Yet, this is only viable when sufficient funds and time are available, specifically large or critical projects. Thus, for everyday routine site …more

The Foundation Lectures: 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 …more

Logging of Core for Mining Purposes with emphasis on the CoalLog Manual

The course aims to (further) educate geotechnical / environmental engineers, geologists and geotechnicians who find themselves logging and/or interpreting soil and rock logs in a Mining Environment and more specifically a Coal Mining Environment. The content assumes that the participants already have a basic understanding of soil and rock logging. The course is particularly relevant …more