Millennium Line - Evergreen Extension | Completed

[Ehlun]

Guessing the lighting will be like those at Gaglardi Way and Lougheed Hwy?

[queetz@home]

Originally Posted by dpogue

That has potential to be pretty cool. The lighting around the Canada Line columns in Richmond are a nice touch.

Video this morning of construction around Lougheed

What are all those black stuff in the parking lot and guideway?? It can't be asphalt, is it? And if so, why are they there?

[GeeCee]

I think it is asphalt. As to the reason why, I'd wager that it is site prep for the columns, especially considering the pile driver on site at the front of the restaurant. Judging from the formwork in place, I think these are the column locations as identified in this concept drawing..

[queetz@home]

Originally Posted by GeeCee

I think it is asphalt. As to the reason why, I'd wager that it is site prep for the columns. One is in the exact location identified in the concept drawing, while one is a few metres away from the building.

I still don't understand. Why would you prep the site with asphalt? And why would you put asphalt on the existing empty guideway itself?

Unless I missed something, this is the first time I've seen asphalt to be used to prep a site. I don't recall the Canada Line, Millenium Line, or even the Manila LRT guideways having their sites prep with asphalt. Unless I am so missing something....

[GeeCee]

Originally Posted by queetz@home

I still don't understand. Why would you prep the site with asphalt? And why would you put asphalt on the existing empty guideway itself?

Unless I missed something, this is the first time I've seen asphalt to be used to prep a site. I don't recall the Canada Line, Millenium Line, or even the Manila LRT guideways having their sites prep with asphalt. Unless I am so missing something....

I've edited the post you quoted a few times, haha. I think they're piledriving anchors for the columns.. as far as why this is needed, I'm not entirely sure. For what it's worth, the parking lot was in pretty poor condition already.

[queetz@home]

Originally Posted by GeeCee

I've edited the post you quoted a few times, haha. I think they're piledriving anchors for the columns.. as far as why this is needed, I'm not entirely sure. For what it's worth, the parking lot was in pretty poor condition already.

That's fine. And I noticed you also added some additional graphics indicating the consistency between the rendering and preliminary prep for the columns on the actual footage.

But yeah....I guess I was so surprised why they would pave over the parking lot with fresh asphalt. I would think that would be done after the columns and guideways have been built, as courtesy to the property owner.

And even more puzzling...why put asphalt on the guideway????

[dpogue]

I don't think there's any asphalt on the guideway itself. The dark spots on the guideway stubs are mostly a combination of wet concrete and some dark-coloured moss.

As for the parking lot, maybe it's to prevent the pile driver's tank-like wheels from tearing up the ground underneath?

[GeeCee]

Originally Posted by dpogue

I don't think there's any asphalt on the guideway itself. The dark spots on the guideway stubs are mostly a combination of wet concrete and some dark-coloured moss.

Oh, yeah, I missed on the part about the existing guideway. Yeah, that just looks like the track stub there is wet/dirty. Keep in mind - that portion is not covered by the existing roof.

BTW Daryl.. http://gizmodo.com/5697423/psa-please-turn-your-damn-cellphone-sideways-when-recording-video

[jsbertram]

Originally Posted by GeeCee

Oh, yeah, I missed on the part about the existing guideway. Yeah, that just looks like the track stub there is wet/dirty. Keep in mind - that portion is not covered by the existing roof.

BTW Daryl.. http://gizmodo.com/5697423/psa-please-turn-your-damn-cellphone-sideways-when-recording-video

And also BTW:
How about using a video sharing service that doesn't require someone to create a user account before seeing the video?
There's a popular one the kids are using now-adays ... YouTube

FU Google+

[officedweller]

TBM story:

Massive machine on the way for Evergreen Line construction

The tunnel boring machine arrives in December

Mike Lloyd
October 7, 2013 9:14 am

COQUITLAM (NEWS1130) – Work on the Evergreen Line linking Burnaby with the Tri-Cities will soon be entering an important phase.

Preparations are now underway for a mega-machine that will help push the project along. It’s a 1,200-tonne, 10-metre-in-diameter behemoth that will take a year to travel more than two kilometres underground.

The tunnel boring machine that will be used to hollow out the rapid transit line’s route arrives in December, but crews are already working to accommodate this massive piece of machinery near the Barnett Highway and View Street.

“They have to do some excavation to drop the elevation and create a pad and a launch area for the tunnel boring machine, so right now there is ongoing shoring and other work to get ready for it’s arrival,” says Scott Roberts with the Evergreen project.

The machine should be here in early December after a long trip, in pieces, by rail and truck from Ontario. “Then it takes a couple months to assemble and we expect to actually launch the tunnel boring machine in early February,” Roberts tells News1130.

Once in the ground, the machine will take a year to travel 2.2 kilometres to Burquitlam, where it will see the light of day again.

“The head of this machine weighs 109 tonnes and it’s 10 metres in diameter. The machine itself is 11 metres long and weighs 1,100 tonnes and will travel eight metres a day, approximately 56 metres a week.”

Following tradition, it will also get a name.

“Once it’s assembled and launched we will have a ceremony,” explains Roberts. “It’s kind of like christening a boat and we will make the name public at that point.”

Whether the big machine is a “she” or a “he” will also be revealed at that time.

Roberts says traffic disruptions will be kept to a minimum, with the pieces of the tunnel boring machine arriving over a three-week period, during overnight hours. The launch area is well off the Barnett Highway.

http://www.news1130.com/2013/10/07/massive-machine-on-the-way-for-evergreen-line-construction/

[Zassk]

I always imagined they could take this tunnel boring machine and start tunnelling the Broadway Line afterward if it is in good condition. But now seeing its dimensions, I'm wondering... how would they ever transport it? It's too big to fit under the Hwy 1 overpasses. They could probably transport it by rail through Grandview Cut to the Finning site... but no idea how they would get it to the Grandview Cut in the first place.

[WarrenC12]

It could just bore it's way there...

[SFUVancouver]

Originally Posted by WarrenC12

It could just bore it's way there...

Perhaps it's time for the Province to railroad (pun intended) an extension of the Expo Line as a subway under Hastings to Burnaby Mountain? The TBM could go clear through Burnaby Mountain and continue all the way to Waterfront; the SFU station could give Metro Vancouver its own super-deep station to compliment those in Seattle and Portland.

Anyway, since that's not happening, it's nice to hear that the TBM will be en route soon.

[Alex Mackinnon]

Originally Posted by Zassk

I always imagined they could take this tunnel boring machine and start tunnelling the Broadway Line afterward if it is in good condition. But now seeing its dimensions, I'm wondering... how would they ever transport it? It's too big to fit under the Hwy 1 overpasses. They could probably transport it by rail through Grandview Cut to the Finning site... but no idea how they would get it to the Grandview Cut in the first place.

Barge? Or you could turn the cutter head sideways.

[queetz@home]

Originally Posted by Zassk

I always imagined they could take this tunnel boring machine and start tunnelling the Broadway Line afterward if it is in good condition.

A lot of people from this forum said the same about the TBM used for Canada Line to be used again for the Evergreen Line. But alas, it didn't happen, despite it being the same contractors, and the Canada Line construction techniques even being highlighted for the Evergreen Line construction. It seems brand new TBMs have to be built for every new project, so I doubt the TBM for Evergreen Line would be used for the Broadway Line.....

[officedweller]

Originally Posted by queetz@home

A lot of people from this forum said the same about the TBM used for Canada Line to be used again for the Evergreen Line. But alas, it didn't happen, despite it being the same contractors, and the Canada Line construction techniques even being highlighted for the Evergreen Line construction. It seems brand new TBMs have to be built for every new project, so I doubt the TBM for Evergreen Line would be used for the Broadway Line.....

The TBM for the Canada Line was rented - it went to a job in Russia after Vancouver.

[aberdeen5698]

Originally Posted by officedweller

TBM story

Interesting that they're boring "uphill". I would have imagined it to be easier to bore "downhill", but I guess that in comparison to the force required to gouge out the rock face "up" vs. "down" hill is probably irrelevant.

[Vin]

Originally Posted by queetz@home

I still don't understand. Why would you prep the site with asphalt? And why would you put asphalt on the existing empty guideway itself?

Unless I missed something, this is the first time I've seen asphalt to be used to prep a site. I don't recall the Canada Line, Millenium Line, or even the Manila LRT guideways having their sites prep with asphalt. Unless I am so missing something....

Recycled asphalt can be used the same way as gravel to provide temporary surfacing. It can be compacted to withstand more loading, just like gravel. Lots of advantages for having this done: like keeping the site and surroundings clean instead of being muddy.

[KPELLY]

The reason they tunnel uphill, is so the water drains out of the tunnel as they go without the need for pumping.

[aberdeen5698]

Originally Posted by KPELLY

The reason they tunnel uphill, is so the water drains out of the tunnel as they go without the need for pumping.

Of course, how sensible of them...

Thanks for enlightening me!