[Caleb Cho]

 

[Rusty]

Looks like Good For Life (GFL) who have been dealing with garbage are now into shoring with all new equipment.

 

[someMidTowner]

Looks like Good For Life (GFL) who have been dealing with garbage are now into shoring with all new equipment.

Green for Life* recently bought Anchor Shoring.

 

[skycandy]

Freshly poured...

 

[Edward Skira]

In case you missed it, there's a website now with weekly updates: 158frontconstruction.info

They won't get to hang with people like you if you send them over there

 

[Caleb Cho]

 

[Rusty]

There does not appear to be underground parking at least on the Sherbourne side.

 

[tripwire]

There does not appear to be underground parking at least on the Sherbourne side.

That's probably a good thing with Sherbourne being pretty busy, one lane each way + raised bicycle lane. Most likely the underground garage entrance will be on Federick St.

 

[innsertnamehere]

parking will cover the entire block, with the ramp off of Frederick.

What those posts are for is likely to support a site staging platform that will sit above the pit as the garage is constructed.

 

[Rusty]

When they drill into the surrounding property and insert shoring cables to keep the wall from collapsing inward:

1. what is this process called?
2. what keeps the cable from pulling out?
3. do they need permission from the adjacent property owner?
4. if there is a building adjacent do they drill below it?
5. Is shoring cable inserted around the whole perimeter of the underground level?
6. are these cables removed once the basement is in place?
7. how is the hole and cable treated to avoid water infiltration in the future?

 

[maestro]

Called tiebacks.

https://skyrisecities.com/news/2016/12/how-tiebacks-rakers-and-struts-support-shoring-walls

 

[innsertnamehere]

When they drill into the surrounding property and insert shoring cables to keep the wall from collapsing inward:

1. what is this process called?
2. what keeps the cable from pulling out?
3. do they need permission from the adjacent property owner?
4. if there is a building adjacent do they drill below it?
5. Is shoring cable inserted around the whole perimeter of the underground level?
6. are these cables removed once the basement is in place?
7. how is the hole and cable treated to avoid water infiltration in the future?

1. Tiebacks
2. Fricton
3. Yes - though if the adjacent owner refuses permissions there is another process that is more expensive that can be used to keep the soil out of the pit.
4. Depends if all the property owners give permission
5. Yes
6. No
7. Don't know exactly, I'd imagine it receives the same waterproofing treatment as the rest of the garage.

 

[DSC]

parking will cover the entire block, with the ramp off of Frederick.

What those posts are for is likely to support a site staging platform that will sit above the pit as the garage is constructed.

Yes, it's a tiny site with no room for 'stuff' and that's exactly what is happening. See: http://158frontconstruction.info/20...ging-platform-construction-at-158-front-st-e/

 

[ChesterCopperpot]

If you can't get tieback agreements - the solution is expensive - lots of inefficiencies with regarding to forming the slabs etc with the pipe struts in the way

Here's an example of both systems for a building in Seattle (tiebacks on the right and left of the hole)

http://www.djc.com/news/cis.html?action=get&id=12088268&printmode=true

 

[AHK]

...
2. Fricton

With respect to the question # 2: what keeps the cable from pulling out? - The response 'Friction' may be technically correct, there is a bit more to it than that.

When the tie back drill has reached the desired depth, the size of the hole is enlarged, and when the cables are inserted, the hole at the end is filled with a grout, creating a form of plug within the earth. So yes, it is friction which prevents the plug, and the cables connected to it from pulling out, but there is a lot more 'grip' from the plug than just the friction on the bare cables themselves that would be provided.