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By Helen Chow & Frances Badelow
The design of foundations for tall buildings is a challenging task for
geotechnical engineers as they are required to consider all geotechnical
aspects of the project, with the aim of identifying and managing the
geotechnical risks. In the design of foundations for tall buildings,
lateral loadings are of great importance as are the vertical loadings. A
small rotation at the foundation will be magnified to a very large
magnitude at the top of the structure due to the height of the building,
which will affect the serviceability and functionality of the building.
By Robert A. Day, Patrick K. Wong, Harry G. Poulos
Part 1, Soil retaining structures
The paper gives a brief summary of the history of limit state design codes in Australia, the design principles behind limit state design, and some of the key aspects of retaining structure design where a lack of understanding of soil characteristics can lead to unrealistic designs. It concludes that there is definitely a place for limit state design in soil retaining structures, but there is still much work to be done to develop consistency of approaches that adequately address the probability of failure.
By Sean Eyre & John McDermott
Construction of the Stage 2 Karratha Tom Price Road (KTP2) situated in the Pilbara region of WA, included excavation of about 130 cuttings along the route, which total about 18.5 km in length. Design and Construction was undertaken by the Millstream Link Alliance, which is a “pure alliance” that comprises Main Roads Western Australia, MacMahon Contractors Pty Ltd, Coffey International Pty Ltd and GHD Pty Ltd.
By Geoffrey Cocks, Clinton Doak, Srijib Chakrabarti & Jemma Dyer
Development of residential subdivisions on soft and compressible ground conditions has been a challenge to the geotechnical engineers. Large settlements under building load and expensive footings can be the key issues with residential subdivision development on soft and compressible ground conditions. This paper presents ground improvement method adopted for a major residential subdivision project in Busselton in Western Australia. The project includes construction of more than 750 residential Lots, a marina, boat ramp, canals, roads, footbridge and a freshwater lake. About half of the overall development has been built so far.
By Srijib Chakrabarti & Jaime Tabucanon
Australia is one of the largest iron ore producing countries in the world. As a result of recent increased demand for iron ore in the international market, development of new open pit mines with associated construction of new iron ore stockyard facilities and expansion of existing facilities have been on the rise in Western Australia. Design of stacker and reclaimer machine berms with the intent of optimising stocking capacity have been the key issue for construction of these iron ore handling facilities.
By J. S. N. McNeill, I. M. Nettleton, I. P. Webber, C. Bridgeman & T. Cosgrove
This paper presents a case study detailing the site investigation, hazard assessment and development of a hazard mitigation strategy for a development in karstic terrain. The site is located on the east side of Galway, Ireland and was being developed for a large (51,000 m²) retail site, with a 9m deep basement for parking.
Application of photogrammetric aerial survey as a monitoring and management tool
By J. S. N McNeill, P. D Forrest, G Patterson, J Macpherson & J Bakker
This paper describes the instability issues present in Fox Valley, New Zealand and outlines how photogrammetric aerial survey has played a key role in the monitoring and ultimately management of risk in an iconic tourist destination, located in a National Park and World Heritage Area.
