Leaside open house sep 2014 Slides

Presentations & Public Speaking

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Description
Presentation made on September 10 about what is happening on the Eglinton Crosstown on the east side.
Text
  • 1. LEASIDE OPEN HOUSE EAST TUNNEL CONSTRUCTIONSeptember 2014
  • 2. MSF – Maintenance & Storage Facility
  • 3. Eglinton Crosstown LRTProject•$5.4 B (2010$), funded by the Province of Ontario•19 kilometres east-west LRT from Kennedy to Jane/Black Creek, including 10 kilometres of tunnel•Connections to Yonge-University-Spadina Subway, Scarborough RT and GO Stouffville•Up to 26 stations
  • 4. East Tunnel Construction Timeline•At future station locations and underground structures (emergency exits) utility relocation and headwall installation is expected to last approximately six to eight months on average at each location•The deep excavation at Brentcliffe is expected to take up to 12 months to construct•Tunnelling activities to Yonge are expected to be completed by summer 2016•Following the completion of tunnelling works, the site will be turned over to the Metrolinx station contractor
  • 5. Tunnel Boring Machine•The construction of new tunnels under Eglinton Avenue is done by tunnel boring machines (TBMs)•Each TBM moves forward by pushing off against concrete segments it has placed behind it to line the tunnel•The operator advances the machine as soil is removed from the TBM face through a conveyor system•The launch pit remains active for removal of muck/spoils
  • 6. Assembly of Tunnel Boring Machines
  • 7. Launch Shaft
  • 8. Construction of Launch Shaft near BrentcliffeConstruction workers are busy preparing the east launch shaft in advance of the tunnel boring machines
  • 9. Construction of Launch Shaft near BrentcliffeIn advance of secant pile installation, workers have built a guide wall on the surface
  • 10. TBM Launch - Vicinity of Brentcliffe Road and Eglinton•Launch Shaft: a deep excavation located just east of Brentcliffe where two tunnel boring machines will be assembled and launched toward Yonge•Utility relocation occurred before excavation began•Contiguous concrete piles (columns) will support the earth walls around the shaft
  • 11. Sequence of Tunnel Drive
  • 12. Tunnel Drive Works 2014•Headwalls are temporary support walls for future excavation of the LRT stations•Made of concrete and installed to the depth of the future track level•Two methods of installation used: Secant Pile Walls and Jet Grout•Machinery including drill rigs, grout tanks, diggers and other equipment
  • 13. Utility Relocations•Construction of the headwalls and shafts requires that some utilities be moved safely out of the way•Depending on site conditions: gas, hydro, water mains, sewers, lighting and telephone and cable lines may be relocated to allow for construction•Metrolinx is coordinating with Bell, Enbridge, Toronto Water and Toronto Hydro, Cogeco regarding required relocations•In most cases utility relocations will be undertaken by Metrolinx contractor•Enbridge will coordinate gas relocation works with Metrolinx
  • 14. Tunnel Drive Works 2014Secant pile wall: formed by intersecting concrete pilesJet grout wall: uses engineered grout to form wall on site
  • 15. Jet Grout Headwalls•Air, water and cement grout are simultaneously injected by a rotating rod at very high pressure•All materials are natural inert materials and have no negative impact on ground water and the environment
  • 16. Jet Grout RigJet grout rigs will be used for headwalls construction at future stations and the extraction shaft at Yonge Street
  • 17. Laird West Headwall Construction•Headwalls are underground support walls located at the east and west ends of the station location•In order to minimize road occupancy on Eglinton, the jet grout plant is located on Sutherland, on the roadway at the northeast corner of Sutherland and Eglinton•The grout plant will be set up in early September 2014, followed by the construction of the south half of the headwall. Utility work has already been relocated•Work will take place in two stages. Each stage is expected to last approximately two to three months•The grout plant will be at this location for the duration of both stage one and stage two of headwall construction for approximately four to six months
  • 18. Laird West Headwall ConstructionFirst stage – South headwall construction•A work zone will be set-up on the southeast side of Eglinton and Sutherland DriveSecond stage – North headwall construction•A work zone will be set-up on the northeast side of Eglinton and Sutherland Drive
  • 19. Traffic Changes in the vicinity of Sutherland•First stage: a single lane of traffic in each direction will be open on the north side of Eglinton•Second stage: a single lane of traffic in each direction will be open on the south side of Eglinton•Left turns from Eglinton to Sutherland for eastbound and right turns from Eglinton to Sutherland for westbound traffic will be prohibited during both stages•The west driveway of Toronto Finnish-Canadian Senior Building at 795 Eglinton Ave E will not be accessible. The east driveway will remain open. Metrolinx and its contractor will assist with any emergency access required•No northbound through traffic on Sutherland will be allowed on the north side of Eglinton. Northbound traffic on Sutherland must exit onto Eglinton•Southbound traffic on Sutherland will NOT be affected
  • 20. Pedestrian Detour in the vicinity of SutherlandFirst Stage - South Headwall Construction•Pedestrian sidewalk on the south side of Eglinton from approximately east of Sutherland Drive to the west driveway of Toronto Finnish-Canadian Senior Building at 795 Eglinton Avenue East will be temporarily closed•Pedestrians will be diverted to use the north Eglinton sidewalk and cross at the intersection of Laird Drive and Eglinton Avenue East to access the businesses located between Laird Drive and Sutherland Drive along Eglinton. Please return to the south sidewalk at Laird•The sidewalks in front of the businesses between Laird Drive and Sutherland Drive will remain open. Metrolinx will provide business signs indicating that the businesses are open
  • 21. Pedestrian Detour in the vicinity of Sutherland
  • 22. Pedestrian Detour in the vicinity of SutherlandSecond Stage - North Headwall Construction•During the second stage of headwall construction, all sidewalks on Eglinton Avenue East and Sutherland Drive will reopen•In some cases, some sidewalks may require short-term temporary closures for the safety of pedestrians. Please follow signs directing pedestrians and take care when travelling near construction areas
  • 23. Emergency Exit Buildings (EEBs)•EEBs are built in between the stations when station platforms are more than approximately 760 metres apart to allow for easy evacuation of passengers•The construction of an emergency exit building includes the building of an evacuation pathway, a set of stairs from the tunnel to ground level, and a small building on the surface•The scale of construction is similar to building a small-scale underground station•Generally, it takes up to 24 months to complete construction at each EEB
  • 24. Renderings of EEB on Eglinton near Donlea AvenueLooking northLooking south
  • 25. Renderings of EEB on Eglinton near Petman AveLooking northLooking south
  • 26. Construction work at Donlea AvenueDrilling rig in action installing secant piles for the emergency exit building at Donlea Avenue
  • 27. Cross Passages•A cross passage is a tunnel connecting the eastbound and westbound tunnels for maintenance and/or emergency purposes•Crews will be building cross passages after the tunnels have built at each location•Some construction works (soil dewatering) will be visible at street level while most work takes place underground
  • 28. Emergency Exit Buildings and Cross Passages•Cross passage and emergency exit construction will take place between late 2014 through late 2016DonleaAvenuePetman AvenueWalder AvenueLillian StreetRumsayRoad
  • 29. Our Approach to Traffic Management•Maintain a minimum of one lane eastbound and westbound on Eglinton in construction work zones•Buses and general traffic will share this lane•Additional lanes will be provided if space allows•Metrolinx will work with City of Toronto Transportation, local elected officials and neighbours to monitor local traffic•Signal timing may be modified and turning restrictions may be added or relaxed to improve the flow
  • 30. Traffic Lane ReductionsTemporary road closure, local traffic onlyTraffic reduced to one lane in each direction
  • 31. Transit Services during Tunnel Construction•Both eastbound and westbound TTC stops in the affected area may be shifted and relocated for the safety of transit riders•Watch for TTC posted signs indicating the adjusted stop locations
  • 32. Pedestrians•In the construction zone, for temporary sidewalks or existing sidewalks the goal is to maintain minimum 1.5 metre sidewalk widths wherever possible•Access to properties from sidewalks should be maintained•Some sections of sidewalk may be closed and crossings will be available at traffic signals•Please take care when travelling near construction. Watch for additional signage directing pedestrians
  • 33. Pedestrian DetoursSign directing pedestriansTemporary detour of pedestrian sidewalks may be required
  • 34. Brentcliffe Portal
  • 35. Future Brentcliffe at EglintonWest boundEast bound
  • 36. Light Rail Train in the Tunnel
  • 37. Laird Station – Longitudinal Section
  • 38. Bayview Station Longitudinal Section
  • 39. Mount Pleasant Station Longitudinal Section
  • 40. Crosstown Community Relations Team40East Community Office660 Eglinton Avenue East(Sunnybrook Plaza at Bayview and Eglinton, next to Home Hardware)E-mail: [email protected]: www.thecrosstown.caTel: 416-482-7411
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