Featured Project: TTC Subway Survey

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Monteith and Sutherland crews worked on a comprehensive survey for the TTC‘s Bloor-Yonge and Pape stations.

Soheil Namdari, pictured above, lead one of the Survey crews completing the control and topographic surveys at Pape Station. The survey crews performed precise traversing and levelling from local City of Toronto control monuments to Pape station. A street-level topopgraphic survey around Pape Station was completed for future planning purposes. We also searched for boundary evidence and completed a cadastral survey to confirm the Pape Station property limits.

At Bloor-Yonge Station project, the crews traversed and levelled from local City of Toronto control monuments to platform level, and then into the tunnels. The control network was then adjusted and used to coordinate the High-Definition Laser Scanning campaign. The challenge of the project has been the time constraints and limited work windows to ensure regular TTC services are not impacted. The use of a HD-scanner was imperative to get big volumes of detailed data as quickly as possible. Our Leica P40 Leica scanner is very quick and of the high precision.


Complete Geospatial Solutions

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From the design of complex geodetic networks through control surveys, gyroscopic verifications, monitoring, hydrographic surveying, detailed topo and HDL Scanning to UAV mapping, at Monteith & Sutherland we have expert personnel and precise equipment to provide trusted results. Monteith & Sutherland: Complete Geospatial Solutions.

 

Tunnel surveying | ECLRT Project

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Monteith & Sutherland have been proud partners of Metrolinx, and provide high precision survey services in challenging conditions. In this particular project – performing differential levelling, total station traverses, gyroscopic verification surveys, and High Definition Laser Scanning for our client.

Mill Woods Double Barrel Trunk Sewer Upgrade, Edmonton

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Monteith & Sutherland Team is providing tunnel surveying support to CRS-Dibco JV at Mill Woods Double Barrel Trunk Sewer Upgrade Project, Tunnelling Phase, 23 Avenue NW, Edmonton. Our services include precise traversing and TACS guidance system operation, as well as surface settlement monitoring along the tunnelling operations path.

Edmonton_Tunnel_TS

Edmonton_Shaft_TS

Edmonton Launch Shaft

ECLRT Deformation monitoring at Bayview intersection

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On the Eglinton Crosstown Light Rail Transit project we perform precise deformation monitoring, where we survey surface and building settlement points. There are approximately 4250 settlement instruments to be observed at varying frequencies over the course of the project, with 7 survey crews working together to complete daily monitoring tasks where there is active construction. One of the most challenging parts of this work is the traffic management. We work alongside On Track Safety Ltd and Toronto Police to manage the flow and safety of traffic, as well as the workers.

ECLRT Deformation Monitoring

Posted by msadmin on

On the Eglinton Crosstown Light Rail Transit project we perform precise deformation monitoring, where we survey surface and building settlement points. There are approximately 4250 settlement instruments to be observed over the course of the project, with 6 survey crews working together to complete daily monitoring tasks where there is active construction. One of the most challenging aspects of this monitoring project is measuring above the Tunnel Boring Machines at night and combating poor lighting and glare from car headlights. See below for a glimpse at the process: