Blair Fox Pty Ltd
  • Geotechnical Investigation
  • Geotechnical Analysis
  • Consultation


Lancelin Windfarms Project

A number of wind farms are currently being developed within the Lancelin Region in Western Australia. A geotechnical team from Douglas Partners Perth office has been involved with the proposed development comprising of five wind turbines at West Hills Farm, ten wind turbines at Anderson Wind Farm and five wind turbines at Cowalla Road Wind Farm. DP engineers provided advice and design parameters on an alternative pier foundation system (Patrick & Henderson Tensionless Pier) achieving project cost savings (25-30% less concrete used and 40-55% less steel used). Douglas Partners is committed to innovative renewable energy projects that respect the environment and benefit communities.

The results of the ground investigation, including borehole drilling, CPT and insitu testing, were used to provide advice and solutions on:
  • Soil, rock and groundwater conditions;
  • Geotechical parameters for foundation design, including allowable bearing pressures, angle of internal friction, cohesions, static and dynamic soil stiffness;
  • Stability analysis and estimated foundation settlement;
  • Construction considerations;
  • Soil resistivity for each soil type and appropriate foundation systems for the proposed turbines.
DP carried out testing in accordance with European standards to comply with the German wind turbine design that is to be used for all three farms. DP’s analysis was then provided to the USA team responsible for the design of the innovative P&H Pier system for the final design of the footings.


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