2011 Meetings

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

Design Methods for Driven Piles in Sand and Clay

Studies have show that out of all of the components of an offshore structure, the design of the foundations contains the most uncertainty. Although methods of pile construction have made enormous advances over the last 50 years, the advances in pile design have been more muted and acceptance of these advances has been slower. Recognising …more

Liquefaction: Christchurch (Darfield) Earthquake 2010, My Experience and Some Issues

“Liquefaction” is a potentially catastrophic phenomenon in which saturated/near-saturated cohesionless soil loses strength due to increase in pore water pressure under rapid loading (cyclic/static). Liquefied soil may acquire a degree of mobility sufficient to permit movement from meters to kilometres. Although liquefaction has been long recognized, it was more thoroughly brought to the attention of …more

Geotechnical In Situ Testing

Because geotechnical laboratory testing is often expensive, slow, unavailable, difficult to obtain undisturbed samples or only analysing a very small part of the soil, Black Geotechnical have had a focus on in-situ testing for some time. The need for higher quality data has driven Black Geotechnical to not only consider traditional in-situ tools such as …more

Eastlink Tunnels – From Investigations to Design

Decision makers increasing consider tunneling as an option for developing and improving infrastructure. Tunnels can be constructed in many different ground conditions for many different uses. This presentation gives an overview of tunneling techniques, including excavation and ground support systems. This is followed in more detail by a description of the development of the design …more

Anticipating Engineering Properties and Behaviour from Geological Knowledge

Skills in interpreting and understanding the geological origins of soil and rock masses, their defects, fabric and anisotropy are essential in the development of high quality ground models on which our ground engineering decisions are based. Alan’s talk will use case histories to show how important engineering properties and behaviour of the ground can be …more

Jacked Piling in Australia

Jacked piling is increasingly being used in China, Japan and South-East Asia, and was introduced into Australia in 1998. Jacked piles have the advantages of being vibration free, creating minimal noise, being pollution free, having a high operational accuracy, not generating high transient driving stresses and providing a type of static load test as part …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