DISASTER China's Three Gorge Dam in Danger

Doomer Doug

Doomer Doug

TB Fanatic
SHEESH, EVEN MORE WATER INBOUND? What is this flood 42?


www.theepochtimes.com

Chinese Officials Warn That Worst Yet to Come as Flooding Reaches New Record

Months of sustained downpours have battered China with floods unseen in decades, displacing millions ...
www.theepochtimes.com

Chinese Officials Warn That Worst Yet to Come as Flooding Reaches New Record
BY EVA FU

August 20, 2020 Updated: August 20, 2020



Months of sustained downpours have battered China with floods unseen in decades, displacing millions and testing the limits of the world’s largest hydroelectric dam.

Such rainfall is far from over, according to Chinese officials who, in a rare admission, said grim challenges are ahead.
 
ShadowMan

ShadowMan

Designated Grumpy Old Fart
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Melodi

Melodi

Disaster Cat
Squid said:
Dam good question!
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The severe flooding starts above the dam, so the dam didn't cause it the rains did, but the dam is not doing the job it was designed to do (as least not as far as I can tell) it is not doing much to stop the flooding downstream either.

In fact if the dam falls or is topped over, the flooding will be much worse.
 
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Troke

On TB every waking moment
Melodi said:
The severe flooding starts above the dam, so the dam didn't cause it the rains did, but the dam is not doing the job it was designed to do (as least not as far as I can tell) it is not doing much to stop the flooding downstream either.

In fact if the dam falls or is topped over, the flooding will be much worse.
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A flood control dam should be empty when the floods come

A power dam should be full when the floods stop

It is possible to reconcile the two but it is difficult. If you miscalculate or the weather does not cooperate, Big Trouble as the Chinese are finding out. Because of the need for power, they could not have an empty dam. So when the big flood came, they did not have the capacity to handle it so they had to release it as fast as it came in causing major floods downstream.

If the dam had been empty when all this started, we might not be talking about it. .
 
Trivium Pursuit

Trivium Pursuit

Has No Life - Lives on TB
joannita said:
My question; is all this flooding because of or in spite of the dam?
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Flooding above the dam is caused by the Chinese tearing open dikes and letting water destroy their fields rather than adding to what's going to the dam. Flooding below the dam is from the enormous amounts of water; you've seen all these geysers in these pictures that they've opened to let through the dam. In what really got my attention was that the way they're letting it blast out at high speed is that it's 25 times more damaging coming at that rate in high speed
 
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bw

bw

Fringe Ranger
Profit of Doom said:
As the dam is build, which cannot change, they cannot release X amount of water over Y time without using Z speed.
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As Troke pointed out, the dam reservoir should have been empty before flood season, if flood control is the goal. Then the reservoir can fill, while water is continuously but slowly released. Their problem is the thing was mostly full from the start, so whatever comes downriver has to be immediately flushed.
 
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SurfaceTension

Veteran Member
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Just to clarify some misstatements or misunderstanding, take a look at the the reservoir operations over the the last month.

Note that from 7/30 - 8/10 they kept the outlow (red line) higher than the inflow (green-dot line) to gradually lower the water elevation and increase storage capacity. Late on 8/11, even with inflow still dropping, they started increasing outflow in anticipation of the coming severe storms. Because they were so bad, they upped the outflow to as much as 50k m3/s. *This is significantly less than the 78k m3/s inflow which, if the dam were not there, would have blasted through the major metro areas downstream.* To say that the dam is not doing its job is inaccurate as it took that 78k surge and reduced it to 50k for areas downstream.

I have not looked in details of the hydraulics of the Yangtze and am unfamiliar with the cities downstream; 50k m3/s may be an acceptable rate with no storms east of the 3GD (or not?). If there are reports of massive flooding in Wuhan today (or, again, not), I guess we'll know. One thing is certain - it would be worse if the dam wasn't there. As Troke pointed out, it may have been better to drop the reservoir levels further before 8/14 so the release wouldn't have had to go up to 50k but, if that flow rate is a problem, it becomes a forecast-accuracy/hindsight/after-action discussion, aka "lessons leaned".
 
L

LucyT

Senior Member
BD/Paul furber
The BigDickAnon Post Archive
...........

"Bear with me I am a bit blitzed and the question about water flow is intriguing. It seems the Chinese are trying to re-direct the water flow from the bottom, and it continues to rise, somehow out the Dam. Suspect you would see some pretty violent flow patterns if this is becoming more of a big deal. One photo I saw is pretty brutal. As the water is making its way up inside the Dam various human parts, animals, etc,. are surfacing and flowing up and out. In fact a hand surfaced with a nice ring on it and of course you know what happened. Not sure if this helps.

"By the way as I go out the door there is something about the number 34 that appeals to God and he tends to hide it right in front of folks. Figure that out and say hi. Regarding Mines, my attraction to the sixteen to one mines is that if produces beautiful specimen pieces. Gold there tends to be clumpy and when it is mined there are found huge pieces of it intact that weigh in the hundreds of ounces. Venezuela is a real hoot. Now that Maduro is holding hostages the green light can be given and we can wood chipper that piece of sxxx."
 
Cascadians

Cascadians

Leska Emerald Adams
The water was spurting and splashing over the top on the far right side. Haven't looked in a couple days, too busy.
 
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Squid

Veteran Member
joannita said:
My question; is all this flooding because of or in spite of the dam?
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The flooding would have happened without the dam, the impact to Wuhan would have been much greater up to now. I think the main idea is to give the CCP more control over what area’s and what cities get the flooding and what area’s are limited.

In many ways the 3GD is a flow control valve for the Yangtze never fully off because of the massive power generation but up to now not fully on (as compared to the highest incoming, not as to how many flood valves are opened).

The danger downstream is if there is a structural failure leading to a massive release downstream that would hit Wuhan first then Shanghai. I again do not believe the entire dam would fail unless there is catastrophic damage occurring beneath the dam but a section or partial failure is possible.

I do not know the design as to damage risk for over topping the max capacity. Obviously this would provide max pressure on the structure but since the water would flow over and drain downstream would this help to release the pressure over time or would the water then flood internal area’s like power generation etc. and not sure what area’s or parts have employee’s and are there area’s where over topping could kill workers by flooding occupied area’s?
 
cyberiot

cyberiot

Rimtas žmogus
Doomer Doug said:
I saw somewhere the 3 gorge dam is 75,000 whatever and that is 100 %. So many videos I can't keep up. BUY FOOD while you can. Between china and the midwest dereconwe have a problem houston.
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At 0:40, World News says--mistakenly, I think--that inflow is 75 million cubic meters per second.
At 1:20, they state that inflow on Aug. 20 was 75,000 cubic meters per second. I'm guessing the latter number is the correct one.

RT: 3:48

View: https://www.youtube.com/embed/LzPzPKsTk4Y
 
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Blacknarwhal

Blacknarwhal

Let's Go Brandon!
O

OldArcher

Has No Life - Lives on TB
It'll be sunrise at *correction!* 1809 Zulu. Maybe then we'll see where the water is being ejected from, and hopefully see how much is being released... Until then, we wait...

Tried to get multicam of 3GD from YouTube, but came up with "Ooops!" Darnedest thing! Maybe some of you young tech-savvy folks can put that up... I can see it, but can't seem to share it... Big storm around 3GD, and raining like crazy... Dark, and lots of rain, so can't really see much...

I wish you all well...

Bright Blessings,

OldArcher, Witch
 
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thorr

thorr

Senior Member
God bless it..... sorry guys... I’m a carpenter lol
I did try to confirm it before posting....
If I can delete it, I will ....
 
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Squid

Veteran Member
Select said:
I've heard of all the empty cities they were building, I wonder if they were built on high ground?
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Many were built in less densely populated regions as a way to keep people working and churn money to make regional CCP head guy look good. And remember in many there is no people so no maintenance. They could move people but this would be a mass migration from heavier populated east with all the manufacturing infrastructure to the west with err empty cities with questionable construction.
 
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