Challenge – Sorting Out the Tangled Web Beneath Over the next 20 years, 200,000 new residents are expected to move to Ontario. Congestion in the GTHA is a mounting challenge and existing infrastructure will be incapable of supporting projected future…
Background An engineering firm retained multiVIEW to perform a geophysical survey. The primary objective of the survey was to map the spatial position of any buried metallic objects that may occur within the investigation limits. The secondary objective was to map…
Background Coring of bridge deck with post-tension cables required for condition assessment. Methodology Ground Penetrating Radar (GPR) used to locate depth and lateral position of all post-tension cables and rebar. Initial large scale survey performed to locate all targets on…
Background multiVIEW conducted surveys for undocumented and non-visible repair zones on Highway 401 near Toronto, Ontario. Historical records of repair did not exist or were hard to locate. Methodology – Identifying Historical Repair Zones Data were acquired at 10mm station…
Overview Ground Penetrating Radar (GPR) uses the physical principles of electromagnetic waves’ propagation throughout the media. The GPR transmitted signal will be reflected, refracted and diffracted from the boundaries between objects with different dieletric properties. Root detection and mapping using…
Background multiVIEW conducted an investigation of Highway 401 near Toronto, Ontario in order to determine construction practice zoning. Historical records of construction and repair did not exist or were hard to locate. The objective of the RoadMap GPR survey was to assess…
Background multiVIEW was retained to evaluate the condition of a concrete bridge deck overlaid with asphalt. Methodology – Bridge Deck Deterioration GPR profiles were collected on a set of lines over the bridge deck. Steel reinforcing bar (rebar) perpendicular to the…
Background An engineering firm retained multiVIEW to perform a geophysical survey. The primary objective was to complete an electromagnetic survey in an area that has exhibited very high pH readings in surface water and groundwater, with the aim of possibly defining…
Background An engineering firm retained multiVIEW to perform a geophysical survey. The objective of the survey was to delineate the spatial position of any possible voids underneath a slab-on-grade concrete floor. The information was used by the engineering firm to…
Background An engineering firm retained multiVIEW to perform a geophysical survey. The objective of the survey was to map the location of possible voids and uncover delamination beneath the concrete floor slabs in four small tunnels situated in the basement…
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