Meeting

Probabilities of Failure & Factors of Safety in Geotechnical Engineering

There has been a rapid growth of interest in both academe and industry in the use of probabilistic methods in geotechnical engineering. In hindsight this is not too surprising, since soils and rocks are among the most variable of all engineering materials, and geotechnical engineers must often make do with materials they are dealt with …more

Ground Improvement in the Christchurch Rebuild – A Contractor’s Perspective

The talk will present the perspective of a specialty geotechnical contractor, now active in Christchurch, on the working environment within the ongoing seismic activity of the region. Ground improvement methods applicable for the lifting/leveling and seismic mitigation of structures will be presented. Several case histories of work performed will be presented to include some aspects …more

Design of Columnar-Reinforced Foundations

The design of columnar-reinforced foundation usually involves two verifications, first, the bearing capacity and, second, the settlement that can be completed by the acceleration of consolidation settlement. The basis of suggested methodology consists in estimating, first, a minimum improvement area ratio (IAR) complying with the allowable bearing capacity of reinforced soil; then a maximum IAR …more

Geology and Geomorphology of Bacchus Marsh Region: Field Trip

The geology and geomorphology of the Bacchus Marsh region has been of interest to geologists since the 1860’s, with a wide range of rock types of various ages and depositional environments present. The extraction of natural resources has been an important industry in the area, with brown coal, basalt, sands and gravels worked from the …more

Geology and Geomorphology of Bacchus Marsh Region

The geology and geomorphology of the Bacchus Marsh region has been of interest to geologists since the 1860’s, with a wide range of rock types of various ages and depositional environments present. The extraction of natural resources has been an important industry in the area, with brown coal, basalt, sands and gravels worked from the …more

Probabilities of Failure and Factors of Safety in Geotechnical Engineering

There has been a rapid growth of interest in both academe and industry in the use of probabilistic methods in geotechnical engineering. In hindsight this is not too surprising, since soils and rocks are among the most variable of all engineering materials, and geotechnical engineers must often make do with materials they are dealt with …more

Some Lessons From Geotechnical Failures

Dr David Tonks will discuss a number of recent significant geotechnical ‘failures’, many of which have resulted in substantial damage and cost. Some have ended up in complex and expensive litigation. Examples include construction on very soft ground, with some ongoing consolidation settlements exceeding 2 m, collapse of an arch tunnel structure during construction, movements …more

Remote Sensing and GIS Based Materials Information Management

The state’s road pavements are required to perform under increasingly severe conditions with both increasing mass limits and increasing traffic volumes. Hence there is a critical need to locate new economic aggregate sources for future work on highways in the western part of the state such as the Newell and Sturt Highways. This presentation provides …more

AGM followed by the EH Davis Lecture: Foundations in Rock

Regardless of recent advances in testing, analysis, construction methods and materials, the geotechnical design of foundations in rock for many applications is still dominated by empirical correlations, rules of thumb and traditional values. These methods were developed at a time when our knowledge was less, analysis methods were relatively simplistic, our construction equipment was of …more

Soil-environment interactions in geotechnical engineering

In the lecture, a number of developments incorporating the effects of new phenomena and new variables on the behaviour of soils will be described and discussed. Recent developments in Unsaturated Soil Mechanics will be reviewed first. It will be shown that they provide a consistent framework for understanding the engineering behaviour of unsaturated soils and …more