brentcliffe-victoria park construction liaison committee meeting - july 2017
TRANSCRIPT
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CROSSTOWN LRTConstruction Liaison CommitteeBrentcliffe – Victoria ParkJuly 13, 2017
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Agenda
• West At-Grade (East Portal to Victoria Park Stop) Update
• Science Centre Station Update
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What Are We Building
• 15 underground stations and 10 surface stops – 9 km below ground and 10 km above ground
• A maintenance and storage facility
• A 19-kilometre route separated from regular traffic
• Transit communications system
• Links to 54 bus routes, three subway stations,
GO Transit, and a new UP Express station
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How we’re building the Crosstown:
Construction Overview
Distinct phases of construction:
• Preliminary works
• Utility relocations
• Handover of tunnel sections
• Support of excavation (shoring)
• Excavation & mining works
• Structural and architectural works
• Track work and systems installation
• Traction power system
• Signalling system
• Testing and commissioning
• Restoration works
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How We’re Building the Crosstown: Construction Overview
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The Crosstown: 2016 in Review
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• Tunnels complete
• Construction activities at all 15 underground stations
• Utility relocations & support in place, underway or complete
• Shoring work underway or nearing completion at several stations
• All design through 60% completion
• Transit system definition for underground segments 60% complete
• Full Building Permit application packages being finalized for submission Q1-Q3
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The Crosstown: 2017 Construction Milestones
• Year of the Dig – 1 million tons to be excavated in 2017
• Start excavating main station boxes
• Shoring & utility relocations at interchange stations – Cedarvale, Eglinton, Kennedy
• Utilities Relocation
• Road Widening
• Start Guideway Install
• Track work – pour concrete base and first track installation
• Maintenance & Storage Facility buildings enclosed
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West At-Grade (Brentcliffe Portal to Victoria Park Stop)
Update
Brentcliffe Portal
• Preparatory works are underway or complete– Geotechnical Investigations complete
– Subsurface Utility Investigations complete
– Tree Protection and Removals ongoing
• The first stage of piling for Support of Excavation (Shoring) complete
• Installation of rebar, waterproofing, and electrical and concrete works underway
West At-Grade
• Preparatory works are underway or complete– Geotechnical Investigations complete
– Subsurface Utility Investigations ongoing
– Tree Protection and Removals ongoing
• Median Removals across Eglinton Avenue East scheduled to begin next week
• Utility relocations in final stage of design.
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Brentcliffe Portal Aerial View (60% Rendering)
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Sunnybrook Park Stop Aerial View (60% Rendering)
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Aga Khan Park & Museum Stop Aerial View (60%
Rendering)
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Wynford Stop Aerial View (60% Rendering)
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Sloane Stop Aerial View (60% Rendering)
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O’Connor Stop Aerial View (60% Rendering)
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Science Centre Station Update
• Existing traffic set up installed in early May and expected to be in place for approximately three months. Traffic set up supports piling, utility works and road widening
• Utility Relocation work continues
• SOE (shoring) for phase 1 is nearing completion with the drill rig now on top of the main entrance location.
• Excavation in the east tunnel has reached the first tie-back level and the tie-backs are drilled, installed and load tested making ready for the next lift of excavation to take place.
• The south section of the pedestrian tunnel invert slab is complete and the east wall will be poured this week. The west wall will be formed next week, followed by the roof slab. The substructure can then be backfilled and the north bound lanes on Don Mills can be reopened.
• Road widening operations continue at the curb lane southwest of the intersection making way for the full East/West traffic separation on Eglinton forming the central work zone for the cut & cover excavation.
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Current Traffic Staging at Don Mills & Eglinton
Began early May. Scheduled to be in place for approximately 3 months.
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How we’re building Science Centre Station
Cut and Cover Methodology at Science Centre Station
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Science Centre Aerial View (60%)
Secondary Entrance
Main Entrance
Bus Terminal
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Science Centre Main Entrance Plaza (60%)
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Science Centre Main Entrance Dusk (60%)
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Science Centre West Portal (60%)
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Science Centre East Portal (60%)
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Science Centre Bus Terminal (60%)
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Science Centre Bus Terminal (60%)