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  1. #1
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    China tunnel flood: Desperate search to find trapped workers


    A rescue mission is under way to save 14 workers trapped in a flooded tunnel being built in southern China.


    Teams are pumping water out of the highway tunnel to find the workers who were caught when it collapsed in the early hours of Thursday.


    Hundreds of rescuers, along with 22 fire trucks and five pumping stations, are trying to locate the workers.


    Investigators are trying to discover what caused the flooding at the tunnel in Zhuhai, Guangdong province.


    Construction workers heard strange noises about 1km (0.6 miles) inside the tunnel, officials say.


    An evacuation was ordered at around at 03:30 local time (19:30 GMT on Wednesday), but water began gushing into the tunnel and 14 of the workers could not make it out.


    "We feel deeply guilty and deeply blame ourselves," said Yan Dawu, deputy general manager of the construction company.


    The area where they were working is under a reservoir, according to reports.


    The local fire department has dispatched 19 vehicles and 100 people to take part in the rescue effort, and crews have arrived from other areas, China's Global Times reported.


    A rescue headquarters has been set up at the site, local media say.


    In March, two workers were killed in the same tunnel when a wall caved in and they were struck by falling stones.


    The Xingye Highway Express Line is a highway that runs north to south through Zhuhai city, according to local media.
    China tunnel flood: Desperate search to find trapped workers - BBC News

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    Flooded Tunnels Trapped Workers Still Unreachable


    The 14 construction workers who were trapped when the tunnel they were working on in southern China suddenly flooded early Thursday morning still cannot be reached, officials said at a press conference Friday afternoon.


    The tunnel, located in Guangdong province’s Zhuhai, is part of the Xingye Highway that will connect with the Hong Kong-Zhuhai-Macao Bridge.


    Water suddenly rushed into the tunnel at around 3:30 a.m. on Thursday. The group of workers were about 1.1 kilometers from the tunnel entrance, and could not evacuate in time, officials said. The workers have not been in contact with the outside world since.


    A rescue team of over 1,000 people are trying to reach the trapped workers, but their efforts have been hampered by the strong flow of water entering the tunnel. Aided by pump vehicles on site, the water level in the tunnel is dropping. By Friday noon, the rescue team had advanced to a point about 750 meters away from the trapped workers.


    The tunnel passes through the Jida reservoir, which on Thursday was ordered to release water. The local agriculture and water authority warned residents to stay away from a nearby river and drainage channels.


    According to a local media report from 2019, the tunnel’s trajectory through the water reservoir required cutting-edge construction methods and technologies, including high-standard anti-water leakage measures. Experts reportedly called the project “a museum of tunnel construction.”


    In March, two workers died when another section of the tunnel collapsed, according to a document from the local emergency management department.


    It is the second construction-related accident in China this week. On Monday, a hotel where renovation work was reportedly ongoing collapsed in Suzhou, eastern China, killing 17 people.
    Flooded Tunnel’s Trapped Workers Still Unreachable


    Fingers crossed but it doesn't look good.

  3. #3
    Thailand Expat VocalNeal's Avatar
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    Quote Originally Posted by Cujo View Post
    The area where they were working is under a reservoir, according to reports.
    Might have something to do with it.

    Wish the trapped guys luck.

  4. #4
    Thailand Expat harrybarracuda's Avatar
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    "We feel deeply guilty and deeply blame ourselves," said Yan Dawu, deputy general manager of the construction company.
    That's OK, everyone else blames you too.

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    Quote Originally Posted by harrybarracuda View Post
    That's OK, everyone else blames you too.
    I blame
    the tunnel’s trajectory through the water reservoir required cutting-edge construction methods and technologies, including high-standard anti-water leakage measures.
    Just as a matter of interest this reservoir is literally out behind my place here, we often go for a walk through the bush to what the kids call crocodile lake for a dip. The neighborhood's been a hive of activity with rescue teams and vehicles and diggers and whatnot.
    I don't know if they're going to try to dig down after draining the reservoir or what, also what does this mean for the future of the reservoir or the tunnel?
    I imagine the reservoir will be fucked now that it's got a big drain at the bottom.
    I just hope they find those guys alive and well. There's a very somber vibe in the neighbourhood today.
    “If we stop testing right now we’d have very few cases, if any.” Donald J Trump.

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    Thailand Expat VocalNeal's Avatar
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    Quote Originally Posted by harrybarracuda View Post
    That's OK, everyone else blames you too.
    Not his fault? The person that decided to go under the reservoir?

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    Thailand Expat Fondles's Avatar
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    carnt the stupid slit eye'd fucks swim ?

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    Quote Originally Posted by Fondles View Post
    carnt the stupid slit eye'd fucks swim ?
    You're pretty stupid aren't you. The tunnel collapsed. Nothing to do with swimming or drowning.

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    Thailand Expat Fondles's Avatar
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    Quote Originally Posted by Cujo View Post
    You're pretty stupid aren't you. The tunnel collapsed. Nothing to do with swimming or drowning.
    my bad... thread title says tunnel flooded you stupid piece of shit.

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    Quote Originally Posted by Fondles View Post
    my bad... thread title says tunnel flooded you stupid piece of shit.
    Ah, so you didn't even read the article. You really are a dumbass aren't you.
    Are you a Trumpanzee?

  11. #11
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    Quote Originally Posted by VocalNeal View Post
    Not his fault? The person that decided to go under the reservoir?

    Tunneling under water is done a lot eg English Channel tunnel.

    Just need to have good processes and systems to manage water ingress because it will get in just need to be able to manage the rate of ingress and the damage it can cause.

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    ^ My first 'proper' job was working on the Channel Tunnel... working for TML (TranseManche Link) as a geotechnical engineer.

    The majority of the tunnels (there are three) were constructed using TBMs (Tunnel Boring Machines) but two crossover caverns were built (one at the UK side, one at the French side) using hand tunneling methods. These caverns were constructed to allow trains to cross tracks in case of breakdowns/emergencies. I worked in the UK crossover cavern, around 5km out from the Kent coast.

    The English Channel is around 30 metres deep, and the top of the crossover cavern was around 30m below the seabed, so there was 30m of rock to play with. The Channel Tunnel was constructed through the Lower Chalk (Lower Cretaceous), a chalk marl (clayey) and perfect for tunneling though. However this is overlain by the Upper Chalk (Upper Cretaceous) which is a highly fractured and fissured, weathered chalk (The White Cliffs of Dover) which is extremely porous. The top of the crossover cavern would occasionally hit the Upper Chalk, when seawater would pour through from the fractures and fissures which penetrated up to the seabed and overlying English Channel water... a scary experience the first time you experienced it.

    Anyway, I remember one Sunday morning shift when all the Paddy tunnelers were extremely nervous and kept asking me if everything was OK. I later discovered that 'Mystic Meg' of the News of the World had predicted a flooding catastrophe of some kind which all the tunneling guys had interpreted as a collapse of the Channel Tunnel.

    So, the guys kept asking me if things were OK and I carried on putting my thumbs up (it was extremely noisy) until a roadheader excavating close to the roof of the cavern hit a fissure and seawater starting pouring though the cavern roof. A gang of tunnelers took off down the tunnel towards Folkestone like bats out of hell... I'd never seen them move so fast!

    Needless to say, no problem of course... and a few months later the UK and French tunnels met up and I was out of a job.

    I often wish that I'd continued in tunneling instead of going offshore, it was fascinating work... but then I wouldn't be living in Korat now, so I guess all things work out for the best!

  13. #13
    Thailand Expat helge's Avatar
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    30 years ago this year that the Storebælt tunnel flooded during drilling.

    Delay

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    Strange you should say that Helge, after the Channel Tunnel finished for me in 1990 a lot of the guys were heading to work on the Storebaelt project. These tunneling guys drift around around the world from project to project. Those that didn't go to Denmark were heading to Cairo for some storm water drainage project, I seem to remember.

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    Thailand Expat helge's Avatar
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    I remember the guys, who did the exit tunnels between the two rail tubes, were welsh...miners ?

    Storebaelt
    Spelling, mate

    It's 'Storebælt'


  16. #16
    Hangin' Around cyrille's Avatar
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    Quote Originally Posted by Mendip View Post
    The majority of the tunnels (there are three)...
    So 'two', then.

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    Helge, many miners went/go into tunneling for obvious reasons... Welsh, Irish and from the English mining areas.

    They generally stayed in gangs following allegiances, but as for spelling... wait a couple of months when I should be using a Skandi keyboard... hopefully.

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    Quote Originally Posted by cyrille View Post
    So 'two', then.
    Ha!

    I guess I should have said the majority of the tunnels' lengths.

    There are three tunnels... North, South and the Service Tunnel. The majority of tunnelling was done by the TBMs, apart from at the crossover caverns where hand tunnelling methods were used. I believe that up to nine TBMs were used in total, and many ended up being sacrificially tunnelled into dead ends and concreted in.

  19. #19
    Thailand Expat misskit's Avatar
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    What’s going on with the search, Cujo? Still going on?

  20. #20
    Thailand Expat harrybarracuda's Avatar
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    They've sent divers in, but it doesn't sound too hopeful unless they found an air pocket.

    Seems this isn't the first accident on that job.

    In March, two workers died in another part of the tunnel when a protective wall collapsed and they were hit by falling stones, according to a notice from the Zhuhai emergency management department.

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    Quote Originally Posted by misskit View Post
    What’s going on with the search, Cujo? Still going on?
    Yes but they haven't reached them yet.
    It doesn't look good.

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