[U/C] North-South Motorway

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aceman
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[U/C] Re: North-South Motorway

#3631 Post by aceman » Mon Apr 22, 2019 6:20 pm

lots of bitumen has gone down in the trench near flinders medical centre and uni. also can't be too far away from a northbound traffic switch under the ayliffes rd overpass.

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[U/C] Re: North-South Motorway

#3632 Post by aceman » Mon Apr 29, 2019 8:52 pm

https://www.themercury.com.au/news/nati ... c3112d41c9

story on the news earlier this evening couldn't hear what was said anyone have more details as advertiser story is hidden behind a paywall.

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[U/C] Re: North-South Motorway

#3633 Post by kymbosa » Mon Apr 29, 2019 10:27 pm

This is a link to Nine Adelaide News;

https://twitter.com/9newsadel/status/11 ... 77600?s=21
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[U/C] Re: North-South Motorway

#3634 Post by Llessur2002 » Thu May 02, 2019 8:30 am

Some photos of the nearly-completed landscaping in the T2T area.

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[U/C] Re: North-South Motorway

#3635 Post by kymbosa » Mon May 06, 2019 5:32 pm

**BREAKING**

Major issues on South Road at Darlington - 6 weeks worth of delays ahead for all users heading south.

Took over an hour and Half to get home Friday night.
25A37FA0-775C-4B7A-9ECA-44E8440DC8A9.png
E0104695-4A41-4D0C-B8BC-1502204D3159.jpeg

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[U/C] Re: North-South Motorway

#3636 Post by SRW » Mon May 06, 2019 6:04 pm

Is this a case of more dodgy concrete or simply impatience to let it cure?
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[U/C] Re: North-South Motorway

#3637 Post by how good is he » Mon May 06, 2019 7:16 pm

More likely it rained (maybe heavily) shortly after the concrete was sprayed (shotcrete). Lately though if it’s raining every day they may not have had that much choice. Not sure why they couldn’t have used pre-cast here (except cost?)

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[U/C] Re: North-South Motorway

#3638 Post by Ser Noit of Loit » Mon May 06, 2019 8:13 pm

At least the problem is at a part they're actively building on rather than a section, like one of the bridges, that's complete.

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[U/C] Re: North-South Motorway

#3639 Post by kymbosa » Wed May 08, 2019 8:30 am

Second section has now collapsed - this is shown in the picture; the one in the distance was the one from last week, the closest one is the one that happened last night.
8B5AA728-60AE-40A8-99D3-3FF7116C4E1E.jpeg
You can see a nice hole between the road surface and soil on the new section too.

Long days ahead for the crews on this site.

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[U/C] Re: North-South Motorway

#3640 Post by aceman » Wed May 08, 2019 8:43 am

so what's the solution for this?

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[U/C] Re: North-South Motorway

#3641 Post by how good is he » Wed May 08, 2019 10:23 am

Pretty sure all the surrounding shotcrete would need to be ripped out. I expect the soil/walls would show a loss of bearing capacity as the water has de-stabilised it.
They may need to re-engineer the section to fix/stabilise the soil and see also if any water effects to the foundations. Ideally then wait for the rain/winter to finish to then do it all again or use pre-cast concrete panels instead.

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[U/C] Re: North-South Motorway

#3642 Post by aaronjameslange » Wed May 08, 2019 10:36 am

aceman wrote:
Wed May 08, 2019 8:43 am
so what's the solution for this?

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Abandon that section of carriageway and just use one carriageway, changing directions every 12hours. Lol

Thursdays forecast: 100% chance of rain and motorway collapsing

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[U/C] Re: North-South Motorway

#3643 Post by aceman » Wed May 08, 2019 10:38 am

so it looks as if that section will remain two lanes for while, this is going to be a nightmare I think

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[U/C] Re: North-South Motorway

#3644 Post by claybro » Wed May 08, 2019 10:45 am

Surely this is not being blamed on rain alone? Even the heaviest of showers in Adelaide are comparatively mild with other regions. If a spell of Adelaide showers has rendered this work unsuitable, then surely the method is at fault, not the weather? Also, if the method is generally sound, it should not have to wait until the end of the rain season to complete the work. I would have thought a forecast of a few fine days should suffice.

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[U/C] Re: North-South Motorway

#3645 Post by rev » Wed May 08, 2019 11:54 am

claybro wrote:
Wed May 08, 2019 10:45 am
Surely this is not being blamed on rain alone? Even the heaviest of showers in Adelaide are comparatively mild with other regions. If a spell of Adelaide showers has rendered this work unsuitable, then surely the method is at fault, not the weather? Also, if the method is generally sound, it should not have to wait until the end of the rain season to complete the work. I would have thought a forecast of a few fine days should suffice.
You still in Perth? because you obviously don't know how dry the grounds been until the recent rains.

9.0mm in February 40 year average is 15.9mm
8.2mm in March 40 year average is 27.4mm
5.4mm in April 40 year average is 39.6mm

So far in May we've had 45.4mm over five days of rain, and the average for May is 61.4mm. There's up to 20mm of rain forecast for tomorrow and a further five over the following days.

I'm not suggesting the rains got anything to do with whats happening, but we're talking about months of well below average rainfall, and beyond parched soil.
45 mm of rain might not be a big deal in other parts of Australia, but they don't have the conditions we do either. It's all relative.

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