DP Approach Saves Time and Money
We are privileged to not only assist our clients with solving their ground engineering problems but we also get to see some special parts of the world. One example was a small project along the foreshore of Port Stephens in NSW where our client (Royal Haskoning DHV) was looking to prepare conceptual designs for the […]
Land contamination poses threat to residential development
When a residential developer contacted us with a potentially serious environmental hazard, our team of leading experts got straight to work. Here’s how our comprehensive analysis, problem-solving and negotiation skills ensured a land contamination issue resulted in approval to proceed. Investigation of the cattle dip commences. Mount Margaret estate is set within the lifestyle precinct […]
A Simplified Geology of the Perth Metropolitan Area
Explore our simplified geological landscape overview of the Perth Metropolitan Area. Understand the unique geological features that define Perth, including its soil composition and rock formations. Download the PDF here. Fred-Verheyde-2016-A-Simplified-Geology-of-the-Perth-Metropolitan-Area
Sustainable Remediation Design for a Clay Target Shooting Rang
Summary The detrimental effects of clay target shooting include the deposition of lead shot and polycyclic aromatic hydrocarbons. Remedial options available to individual sites are highly variable and depend on soil type, topography and the presence of vegetation. Using a former gun club situated on public land as an example, the principles of Sustainable Remediation […]
Advanced Site Characterisation with Passive Soil Gas
Introduction A total of four existing USTs and sumps had been removed from a former industrial site in Southbank, inner Melbourne, however, some residual contamination in validation samples and moderate groundwater contamination indicated that not all sources had been removed. High levels of TPH C10-C36 and naphthalene were detected in both soil and groundwater and […]
Instrumented Preload at Kooragang Island
Abstract The “Stage 3 Expansion” of the Kooragang Coal Terminal was a major industrial project which boosted the coal exporting capacity of Newcastle, making the terminal the largest coal handling facility in the world. Port Waratah Coal Services appointed Bechtel Australia in July 1999 to design and construct the expansion, which was completed early 2002. […]
Geo-environmental Challenges of a Major Coal Terminal Development
This paper describes the integration of geotechnical, environmental and groundwater investigations for the Terminal 4 Project in Newcastle, Australia, aimed at identifying appropriate remediation measures to protect human health and environmental values. The site presented a series of complex challenges due to its geological setting, previous uses for waste disposal and adjacent environmentally sensitive areas. […]
A Case Study of a Site Underlain by Collapsing Soils
West Kimberley Regional Prison, Australia Abstract Douglas Partners Pty Ltd, geotechnical and environmental consultant, undertook a geotechnical investigation for the proposed West Kimberley Regional Prison located in Derby, Western Australia, in 2008 and 2009. The site is underlain by Pindan Sand, a red-brown aeolian clayey sand that exhibits collapse potential. The aim of this paper […]
Verification of a deep soil-bentonite barrier wall using the CPTu
Bulla Road Bridge North Abutment Geotechnical Design and Construction Performance of Abutment Modification M. P. Chan, BEng/BA MIEAust and M.Y. Broise BSc (Hons) 26th November 2018 Abstract The remediation of a former steelworks site in Newcastle, Australia included the construction of the deepest open-trench groundwater barrier wall in the world (at the time of construction). Piezocone tests […]
The Design and Performance of Stone Columns at Kooragang Coal Terminal
Abstract This paper describes the application of vibro-replacement stone columns to improve a weak foundation and allow substantial savings in both the project schedule and the quantity of fill material. Recent expansion of the Kooragang Coal Terminal boosted the coal exporting capacity of the Port of Newcastle to 100 million tonnes per year. Port Waratah […]
