Blog Archiv1es

ATS: Tunnelling Under Sydney Opera House

The Sydney Opera House Vehicle Access and Pedestrian Safety (SOH VAPS) project is a $110 million project being completed by the Sydney Opera House Trust. The main goal of the project is to remove service vehicles from the forecourt of the entertainment precinct which receives close to 10 million visitors each year. It involves the …more

Posted in 2013 Victoria Meetings, Meeting, Victoria |

A Window Into Some Of The Challenges And Joys Accompanying Four Decades Of Geomechanics Practice

Andrew’s presentation will cover: salient features and “take-away” lessons from some of the geotechnical projects selected from his portfolio over the last four decades; background to the development of the Landslide Risk Management framework for Australia, dealing more with the challenges and issues in bringing the framework to fruition than specifically the guidelines themselves; and …more

Posted in 2013 SA Meetings, Meeting, South Australia and NT |

Probabalistic Techniques in Geotechnical Modelling – Which one should you use?

Predictions of performance are at the core of geotechnical engineering design. Predictions based solely on deterministic analyses suffer from unquantifiable uncertainties and the implied absoluteness of the prediction. On the other hand, probabilistic estimates suffer from being vague, which is unsettling to most geotechnical engineers. Combining deterministic and probabilistic analyses offers synergies that are best …more

Posted in 2013 SA Meetings, Meeting, South Australia and NT |

Invalidity of Relative Density for Quality Control of Cohesionless Soils

The concept of relative density (density index) compares the in situ or as placed density of a coarse soil with its index loosest and densest states. This concept was first considered almost 90 years ago and is still a popular tool among geotechnical professionals to assess the state of packing of granular soils and to …more

Posted in 2013 WA Meetings, Meeting, Western Australia |

Field Trip: Adelaide Oval and the Riverbank Precinct

The Riverbank Precinct is one of Adelaide’s iconic spaces incorporating panoramic views across the River Torrens, the North Adelaide parklands, Adelaide Oval and Memorial Drive. The redevelopment of the Riverbank Precinct is one of Adelaide’s largest and most significant urban renewal initiatives that will see expansion of the Adelaide Convention Centre, improved pedestrian accessibility and …more

Posted in 2013 SA Meetings, Meeting, South Australia and NT |

1st monthly lecture

Posted in 2013 Queensland Meetings, Meeting, Queensland |

Simulation Aided Geotechnical Engineering

Simulation Aided Engineering is a concept for leveraging computer based design tools to improve the engineering and design work flow. For complex geotechnical problems, it can be thought of as providing the virtual test laboratory for testing the bottom-line performance of various courses of action at every stage in the engineering process, using the best …more

Posted in 2013 Tasmania Meetings, Meeting, Tasmania |

Ground Engineering and the Law

Nick will follow up the presentation he delivered last year. He will discuss new topics such as negligence claims and the use of dispute resolution boards to resolve large engineering disputes, as well as revisiting, in light of recent case law, some of the topics he covered last year, such as expert evidence and proportionate …more

Posted in 2013 Victoria Meetings, Meeting, Victoria |

The challenges of offshore shallow foundation design

The infrastructure associated with offshore oil and gas fields includes subsea structures located on the seabed along the pipeline routes. These structures are included to support the pipeline at key locations or controlling the pipeline deformation. Typically, these subsea structures are supported by shallow skirted foundations. The design of offshore shallow foundations addresses a number …more

Posted in 2013 WA Meetings, Meeting, Western Australia |

Geotechnical Design and Construction of Port of Brisbane Motorway Upgrade Project

The Port of Brisbane Motorway Upgrade project involves the construction of 6 km of new and duplicated motorway, delivered under a competitive double Early Contractor Involvement (dECI) model. The majority of the project is underlain by deep saturated soft soils, which presented various geotechnical challenges for performance of the road and interaction with fixed structures. …more

Posted in 2013 Queensland Meetings, Meeting, Queensland |

Geotechnical Engineering and the Law

Nick will discuss practical legal information of relevance to geotechnical practitioners. Topics discussed will include: Latent conditions – Who should take the risk for ground related risk? Examples of contractual approaches to risk allocation. Proportionate liability – What is it and how does it affect geotechnical contractors and consultants. Expert Witness – What are the …more

Posted in 2013 Sydney Meetings, Meeting, Sydney |

Numerical simulation in underground construction – what are the benefits and how can we trust the results?

It is sometimes not clear what the benefits of numerical simulations are that are sometimes carried out in underground construction projects. Two questions arise: Is it really worth the effort to perform sophisticated 3D simulations or can we obtain similar results with much simpler models? Can we really trust the results that come out of …more

Posted in 2013 Newcastle Meetings, Meeting, Newcastle |

First Committee meeting of 2013

Posted in 2013 Queensland Meetings, Meeting, Queensland |

The Use of Geosynthetics as a Soil Reinforcing Elememt and BS8006 as a Design Standard

Steve Corbet has been the Chair for the revision of BS 8006- Reinforced and Strengthened Soils. This Standard has been in use since 1995 however market and design experience has necessitated some revision and enhancement to the original document. This was finalised in late 2010 and was issued to the market. The use of soil …more

Posted in 2012 Meetings, Meeting, Sydney |

Reinforced Soil Structures – BS 8006-1 2010

BS 8006- Reinforced and Strengthened Soils has been in use since 1995 however market and design experience has necessitated some revision and enhancement to the original document. This was finalised in late 2010 and was issued to the market. The use of soil reinforced structures, particularly in applications of reinforced basal treatments under embankments or …more

Posted in 2012 Queensland Meetings, Meeting, Queensland |

AGM & Offshore geotechnics – research and practice beyond the boundaries of traditional soil mechanics

This lecture will describe novel geotechnical technology that is supporting the frontiers of offshore oil and gas development, with a focus on the boundaries of traditional soil mechanics. Offshore developments involve a variety of infrastructure placed on the seabed or anchored to it, including extensive networks of on-bottom pipelines. A particular challenge is often the …more

Posted in 2012 Meetings, Meeting, Western Australia |

Near-surface seismic: More than a problem of scale

Over the last 30 years, various seismic techniques have been successfully used to unravel some of the most intriguing and challenging near-surface problems faced by geologists, hydrologists, and engineers. In general, geophysicists define the nearsurface as the upper few hundred meters of the Earth’s surface. With the unique behavior and wavefield characteristics commonly observed on …more

Posted in 2012 Meetings, Meeting, Victoria |

Reinforced Soil Structures and the development of BS8006:1-2010

Geosynthetic materials offer the designer solutions for a wide range of soil stabilisation and ground improvement treatments in infrastructure projects, including hard faced walls, wrap-around faced green slopes, basal reinforcement and load distribution platforms. Our speaker, Stephen Corbet, will give an insight into the use of geosynthetic materials for soil reinforcement, and the development of …more

Posted in 2012 Meetings, Meeting, Victoria |

AGM

The Australian Geomechanics Society Tasmania Chapter AGM will be held at the Cargo Bar, 47 Salamanca Place, Battery Point on Tuesday 27 November 5.30pm for 6pm start. There will be no formal speaker, instead the meeting will have a significant social and networking focus with refreshments and finger food provided. The business agenda will include: …more

Posted in 2012 Meetings, Meeting, Tasmania |

Cracking and Movements in Buildings – Design Consideration

With the advent of the AS2870-2011 code release, Climatic changes and reported Residential Roof Truss movements, the following presentations will discuss Footing Design considerations to minimise cracking and movements in buildings. Fill Reactivity by Dr Peter Mitchell (Aurecon)Peter will discuss soil heaves considering a Black Earth site with 2m cut and controlled fill. The methods …more

Posted in 2012 Meetings, Meeting, South Australia and NT |