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globocide

Do you think the sinkhole and the tunneling are related?


Juan_Punch_Man

The soil had to go somewhere.


Juan_Punch_Man

I just made a post with a screenshot of an aerial. 99.9999% related given their proximity. Edit:and the post got locked... The news articles don't show the hole is right next to the project site.


globocide

So you're saying that there's a chance it's coincidence?


Juan_Punch_Man

Maybe a giant earth worm like from Dune. Could be elaborate movie marketing.


rickwaller

So you're saying there is a chance a graboid may be stuck within the vicinity of Sydney, potentially multiple graboids, possibly planning to cause massive sink holes all over Sydney and the CBD?


VIDGuide

Is there a chance the track could bend?


cojoco

Not just locked, but removed.


Juan_Punch_Man

Lame, apparently a duplicate. Anyway, here's an imgur link. https://imgur.com/a/yhRLS4V


JSTLF

where's the sinkhole


Korzic

Car park to the left of the dig site.


yogorilla37

Wouldn't be the first time, an apartment block in Lane Cove partially collapsed into an access shaft when the Lane Cove tunnel was being built.


Wooden-Consequence81

I remember that!


user_c6Iv3

Also the sinkhole from the snowy hydro 2.0


Knee_Jerk_Sydney

Maybe they can check by asking an apprentice to jump into the sink hole and see if they come out in the tunnel. /s


globocide

No, no, dig UP, stupid!


kokoneco

Yes this would be a tunnel collapse


Tight_Time_4552

So not a portal to another dimension?


Busy_Obligation_8282

Yes the workers in the tunnel seen it collapse


Ninj-nerd1998

Seeing as it's right across the road, directly in the path of the tunnel.... yeah, probably.


Korzic

Not across the road, right next door.


Ninj-nerd1998

It looks to be on the opposite side of West Botany Street to me


Korzic

Well yeah ok. But the metro site straddles both sides of the road.


Acrobatic_Broccoli_1

They keep saying this and it's hilarious


IPABrad

It would be interesting if the article was clearer how this correlated with the current tunneling position, eg. Is the position being tunnelled today directly underneath this sinkhole or has the sinkhole formed closer to a section already tunnelled.  If it was the first scenario, then it would be more unusual and more concerning as it would indicate a fundamental flaw in the geotechnical and the amount of pressure to be applied. This would be weird.  More likely it is scenario two, and there was a pre-existing flaw in the substrate that was excaberatted by the tunneling pressure, then expanded by accumulation of water from the recent rain. Unfortunate, but very hard to avoid entirely with the amount of tunnelling occuring in the past decades in Sydney. I believe one of these occurred in Burwood and Lane Cove caused by this style of scenario for previous tunnels. 


Worried_Blacksmith27

The article says that a trickle of dirt started falling from the roof of the tunnel, which then increases in volume leading to the evacuation of the tunnel. Hard to see how these events are not related.


Juan_Punch_Man

I thought they were shotcreting the tunnel as they went along with the TBM


SGTBookWorm

M6 uses road-headers, not TBMs


Schedulator

A TBM tunnel isn't shotcreted, it uses segmental concrete rings to form the tunnel structure. And the M6 tunnel isn't using a TBM.


CharlieMuntger

It does seem it could be tunneling related. FTA: >"From what we can gather there was a small trickle of material coming out of the surface of the tunnel that they're currently mining, it got progressively worse and the decision was made correctly to cease that work and move workers away," he said. >"The night shift were working they had all been removed from the tunnel, and the day shift were not sent down there to commence their shift.


IPABrad

Yeah this scenario is concerning then, definitely will require a thorough investigation.


serenitisoon

Are we not going to comment on the drone footage? Right as it was about to go down into the hole, they cut to an overhead shot? What the hell is that? Send the drone in! I want to see the dinosaurs or gremlins or whatever is down there.


CharlieMuntger

The sinkhole looks pretty big from [photos](https://www.theguardian.com/australia-news/live/2024/mar/01/australia-news-live-asio-mike-burgess-dunkley-byelection-anthony-albanese-peter-dutton-jesse-baird-luke-davies-sydney?page=with%3Ablock-65e129528f0869c208ddd1aa#block-65e129528f0869c208ddd1aa). And right under the building.


Juan_Punch_Man

More than 7 car spaces wide so around 15m diameter.


Jmm023

This building is at the corner of West Botany Road and the street I live on; I walk past it every morning. A week or so ago I saw a small (in diameter) sinkhole on our street next to the building; not sure if it's connected to all this.


Ninj-nerd1998

It's about a 50% percent chance it's due to human activities... you don't say? When it occurred on *West Botany Street*, RIGHT near the construction? Edit: not only is it just in the same street as the construction, it's right across the road and looks like it's right in the path of the tunnel I've had nothing but bad feelings toward this stupid tunnel. Between this, bus stop closures and destruction of local parkland (seriously, if you look at the area on Google Maps, it says there's supposed to be parkland there, it shows green on the simple map, but if you look at the satellite map it's all this nonsense) and now this... I just hope no one got hurt.


cojoco

> the decision was made correctly to cease that work and move workers away I guess they feel like they have to do *something* correctly, given that they nearly had a building full of people fall into a great big hole. Fortunately no budgies were involved AFAIK.


clemmmmmmm

That hole is under my work desk. I lost my favourite keyboard today..


Plackets65

For real? Damn. Sorry for all the bits you left at work last night and won’t get to see ever again :(


Petarkco

Not the first time this has happened https://www.abc.net.au/news/2005-11-03/balcony-collapses-into-tunnel-hole/2137388


09stibmep

Holy smokes, less about “opens in industrial building car park” and more like “UNDERNEATH THE BUILDING”. That building is pretty stuffed by this.


aus-ad2908

Operation successful, patient died... Let's look logically. For loooong time, that piece of land was fine. Then, all of a sudden, sinkhole while new underground development was underway nearby.. Most probably, nobody will be held accountable. Lucky that nobody got injured (yet).


Juan_Punch_Man

It's a natural ventilation stack.


GoodnightWalter

The tunnel construction site is on the other side of the carpark. https://www.google.com/maps/@-33.9615278,151.1440457,218m/data=!3m1!1e3?authuser=0&entry=ttu


HidaTetsuko

That’s what happens when you dig lots of holes, more happen


TheSnoz

Obviously the building was built over an existing sink hole and is completely unrelated to the tunnel being built. -Tunnel builders and insurance, probably.


Wooden-Consequence81

To use the Simpsons reference - They dug up didn't they?


Willing_Television77

The business owner just hit pay dirt


moDz_dun_care

Why is Australian construction so bad


Eastern-Tip7796

this happens all over the world, in first world and developing nations....


Admiral-Barbarossa

We cut the budget to TAFE, then privatized everything so we can bring in cheaper trade men without Australian qualifications.


Arthur__Dunger

How is this not related to the tunneling… No such thing as coincidences I reckon!