George Massey Tunnel Replacement Project – High-Tech Real-time Survey Monitoring of Test Geotechnical Pile Driving a Success
July 3, 2016
Underhill Geomatics Ltd. was retained to provide real-time movement monitoring and surveying services for the George Massey Tunnel Replacement – Geotechnical pile driving project, which was completed in June 2016. Underhill sourced, installed, commissioned, and monitored the surrounding ground and structures for the duration of the project, including the tunnel itself. They delivered millimetre level accuracy in real-time – twenty-four hours per day, seven days per week for the duration of the project. The Leica GeoMoS system was used to measure, analyze, and report on any movement that potentially could occur due to the disturbance of driving five – two metre diameter piles 60 metres (180 feet) into the ground. The system automatically monitored any change in position in three dimensions and would instantly notify the stakeholders, precisely when it occurred. This is one of Undehrill’s specialized professional geomatics services, all of which can be found on their website at www.underhill.ca
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