GHD carried out geotechnical investigations for the
Toronto-York Spadina Subway Extension is an 8.6 km extension from
Downsview Station northwest through York University within the City
of Toronto and north to the Vaughan Corporate Centre in the
Our investigations involved the advancement of deep boreholes up
to 50 m depth, installation of monitoring wells, pressuremeter
testing and analysis, hydraulic conductivity testing, detailed
geotechnical laboratory testing, environmental analytical testing,
and preparation of factual data reports. The total amount of
drilling exceeded 5000 lineal meters.
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