Monthly Archives: February 2012
This presentation discussed a number of geotechnical projects in which the Pressure Injection Process has been used. These projects include railway and road stabilisation and contaminated ground remediation. According to the contractor, the range of uses for the process are limited only by the imagination. The presentation also presented some procedures that, although not yet …more
Adam Kilsby: Contaminated Soil – Take it or Leave it The viability of redeveloping ‘brown fields’ sites within South Australia can be significantly influenced by residual soil contamination associated with past land use. The viability is particularly relevant for residential developments on former commercial/industrial sites, where changing the land use to one more sensitive can …more
Over the past 30 years or so the fundamental non-linear stress-strain behaviour of soils and soft rocks has been established by laboratory and in situ tests leading to development of new theoretical models for soil behaviour and complex numerical analyses. But for much day-to-day practice, ground engineers do not need such complex and detailed methods …more
In Australia, large underground excavations for Civil Engineering purposes have traditionally been associated with hydroelectric installations. However, these excavations are now becoming more common and will continue to do so. In the mining industry, large underground excavations are common and many of the principles used and rock mechanics issues considered when designing these excavations are …more
The site visit included a tour of the Linwood Quarry near Marino.
The lecture described some personal experience accumulated over 33 years of working on embankment dams as an investigations and design engineer, review consultant and supervisor of research. The issues covered included: Seepage in dams and their foundations. Internal erosion and piping failure, including filter design, and the factors which influence the initiation, and progression of …more
Each year, the last meeting is devoted to a social event where members and others are encouraged to bring along their wives and partners for a fine and inexpensive meal. The evening includes a non-technical presentation.
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 will adjudicate and the winner will be presented with a certificate and a $250 cash prize.
Geotextiles have been used in Australia for over 30 years for a range of applications including subsurface drainage, roadway separation, roadway stabilization, permanent erosion control, temporary silt fences and under paving. Key developments in the local industry occurred in the 1980s when Geofabrics Australasia set up a facility in Albury to produce the non-woven Bidim …more
The seminar gave a general overview of the DMT and its design applications; indications and guidelines for the proper execution of the DMT; and highlighted a number of significant recent findings and practical developments. Attention was mostly focused on the application of the DMT to the following engineering problems: settlements prediction; determination of flow parameters …more
In 1990 the Hong Kong Government launched the Airport Core Programme to provide a new international airport together with nine associated projects at a total cost of over twenty billion US dollars, making it one of the world’s largest infrastructure developments. The completion of the New Hong Kong International Airport in only seven years and …more
Since their discovery in 1915, the opal fields around Coober Pedy, Lambina, Mintabbie and Andamooka have been the largest producer of precious opal in the world. It is estimated that, up to the late 80s, they produced in excess of $25 million of rough opal per year, which represented about 80% of Australian and 75% …more
Engineering geological and geomorphological mapping is an essential part of the investigation, design, and construction of most projects, yet this crucial activity is often carried out in a haphazard manner or even omitted. Sometimes this is because project managers are simply unaware of the value that mapping contributes. Some examples of the potential consequences of …more
Linear Landfill or Driver’s Dream – Can We Successfully Use Alternative Aggregates to Make Pavements?
There is an increasing environmental drive to reduce quarrying of geological stone and, at the same time, to reduce the volume of waste and by-product materials going to dump or low-value uses. Road construction consumes vast quantities of bulk material so seems a natural place to use alternative materials such as ash, slag, foundry sand, …more
The Thredbo Landslide, although very small by most standards, was Australia’s most significant landslide in terms of societal impact with the highest death toll (18 people) and probably the highest indirect economic loss. The official report on the tragedy by the Coroner found: “The Alpine Way fill embankment which ran… above Thredbo Village was in …more
Stage 2 will extend the Southern Expressway by 12 kms from Reynella at the northern end, to Main South Roan at the southern end. Completion, at a cost of $76.5 million, will allow traffic to bypass 15 sets of traffic lights thereby saving 10 minutes in travel time. The Expressway includes 2 lanes, a stopping …more
Held at: Middle Eastern Cultural House, 126 Henley Beach Rd, Torrensville. Istanbul, Seville, Jerusalem, Delhi… each city conjures a host of images at once exotic, enchanting and mysterious. This richly illustrated presentation explored such cities in relation to the emergence and diffusion of Islam. The emphasis is on architecture. Katherine argued that Islamic architecture is …more
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 will adjudicate and the winner will be presented with a certificate and a $300 cash prize. Aaron O’Malley – Soil moisture and soil movement in an urban development on …more
Thorndon Park and Hope Valley Dams were the first and second water supply dams constructed for the City of Adelaide circa 1860 and 1870, respectively. Both dams were constructed in a rural environment without provision to prevent internal erosion (piping) type failures. Thorndon Park is currently part of a City of Campbelltown recreation park and …more
The Barcoo stormwater outlet project involved the construction of a cut-and-cover concrete culvert from the waters of the Patawalonga, through the sand dunes at West Beach, to a distance of around 200 m out into the Gulf St Vincent. The precast concrete culvert allows the movement of stormwater from the Patawalonga out to the Gulf. …more