Western Works Construction Liaison Committee Meeting - September 2017
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Transcript of Western Works Construction Liaison Committee Meeting - September 2017
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CROSSTOWN LRTConstruction Liaison CommitteeWestern WorksSeptember 26, 2017
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Agenda
• Eglinton Maintenance & Storage Facility
• Mount Dennis Station
• Railway Corridor
• West Portal & Elevated Guideway
• Keelesdale Station
• Caledonia Station
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Maintenance & Storage Facility : ongoing works
• Site services – dry/wet utilities (ongoing)
• Steel erection for Maintenance Building (ongoing)
• Concrete placing, formwork and rebar – maintenance building pours (ongoing)
• OCS Foundation Installation
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Mount Dennis Station: ongoing works
• Foundations – Mount Dennis station box concrete structure & main entrance (ongoing)
• Driven Piles for Photography Drive Bridge Abutment – Week of Sept 25 7:00 AM to 11:00 PM
• Keelesdale Road and sidewalk north of Eglinton closed commencing October 2, 2017
• Building 9 foundations
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Railway Corridor: ongoing work
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Phase 2 – started April 2017
• CP Track diversion Track Grading & Track Construction – started September 5, 2017
Phase 3 – started May 2017
• Center Temporary Shoring Wall (excavation & tie-backs) – Fall 2017
• LRT and Pedestrian Tunnel construction (excavation) – Fall 2017
• Work within the rail corridor will occur during the hours of 7:00 AM to 11:00 PM
• Anticipated night work will occur over the span of 2 to 3 nights to complete borehole drilling. This work is expected to begin at the end of September 2017. A notice will be canvassed to the affected residents on Hollis Street within the next week
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West Portal & Elevated Guideway
*90% rendering6
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West Portal & Elevated Guideway
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West Portal & Elevated Guideway
*60% rendering
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West Portal: ongoing work
• Box tunnel construction tiebacks and struts de-stressed and removals. Backfill (ongoing)
• Utility relocation works for Elevated Guideway – Manhole 27 is completed• To follow: Retaining wall and backfilling for Eglinton Avenue West realignment –
shaft walls demolition started. Utilities relocation at south Eglinton Avenue West (No-Frills entrance) to start foundations of the Elevated Guideway by end of September 2017.
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West Portal: current traffic
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LRT Tunnel Fit Out
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Tunnel Invert Pour: Key Milestones
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Concrete Invert Pour: Concrete Delivery
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• Mini concrete trucks delivering concrete into tunnel.
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Concrete Invert Pour: Stage 1
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• Concrete trucks deliver loose concrete to the work area• Loose concrete mix is used to fill the bottom of the tunnel• Tunnel Fit Out Crew flatten and smooth it
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Concrete Invert Pour: Stage 2
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• Workers install welded mesh which functions like rebar to help reinforce the next layer of concrete
• Higher strength concrete is poured to provide the flat track slab for the rail tracks• Workers spread the concrete, and a truss screed machine vibrates it into a perfectly level
surface
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Keelesdale Station: ongoing works
Ongoing
• Excavation under the deck, Main Entrance, 2nd Entrance, 3rd Entrance and TPSS • Tieback installation level B complete. Level C starts Sepbember 25th• Utility support 95% complete• Second shift is working from 5:00 p.m. to 2:00 a.m. daily.
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Caledonia Station Update
Fall 2017
• Dewatering (ongoing through construction period)
• Continue deep excavation and hauling (starting at 6:00 a.m.)
• Continue installation of tie-backs
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Long-term Construction Staging
Late June 2017 until 2021