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| China-Japan-Koreas | |
| 3 Gorges opens all the gates. | |
| 2020-07-21 | |
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| Posted by:3dc |
| #55 hah #35, so much for retirement altho that sounds like a fun project |
| Posted by: Jan 2020-07-21 22:50 |
| #54 Perseid meteor shower peaks around August 12-13. |
| Posted by: SteveS 2020-07-21 22:39 |
| #53 So where are the "Rods from God" when you want them |
| Posted by: Ununter Omotch2809 2020-07-21 21:58 |
| #52 Who's gonna watch Disney's shitty movies now? |
| Posted by: Regular joe 2020-07-21 21:42 |
| #51 According to 3dc's video at #13, the monsoon season has not started yet, is about to start. |
| Posted by: Alistaire Omarong4061 2020-07-21 20:29 |
| #50 I thought XI was god. At least that's who Christians in China are told to worship or else. |
| Posted by: Alistaire Omarong4061 2020-07-21 20:15 |
| #49 Great. Vampire Leaches. |
| Posted by: swksvolFF 2020-07-21 19:50 |
| #48 3dc: Alright, I'll admit it. I laughed at the 28seconds one. I mean it's horrible, but that sequence... |
| Posted by: Charles 2020-07-21 19:17 |
| #47 I think I took the 28th last week; wonder if Ladbrokes is taking any action? |
| Posted by: Raj 2020-07-21 18:29 |
| #46 I have to admit, Chinatlantis didn't cross my mind for What the Hell 2020, August Pool. |
| Posted by: swksvolFF 2020-07-21 17:45 |
| #45 https://twitter.com/ExpelChina/status/1284495195405348865?s=20 That's a nasty one of folks getting electrocuted everywhere. |
| Posted by: 3dc 2020-07-21 17:34 |
| #44 August 5th |
| Posted by: Frank G 2020-07-21 17:32 |
| #43 The video at 13 says the monsoon season typically runs from July 20-Sept. 20, suggesting they're looking at another 60 days of heavy rain. Ladies and gentlemen: Place your bets! I'll take August 28. |
| Posted by: Bobby 2020-07-21 17:28 |
| #41 Do they get floating debris in a Yangtze flood? Yes, but the debris looks like trees, cars, farm animals, deceased humans, houses and factories that have been ripped apart. Anything that floats. Would look the same way here under similar circumstances. The cleanup (if that has to happen) will be ghastly. |
| Posted by: Mullah Richard 2020-07-21 16:49 |
| #40 116,000 cu meters/sec would be an epic flood event downstream in its own right. The Wuhan lab would head out to sea. And the bat meat market, too. |
| Posted by: Alaska Paul 2020-07-21 16:46 |
| #39 From the link @29 (the link didn't work, but I found it anyway) - The 483-meter spillway, located in the middle of the main dam, has 23 bottom outlets dimensioned at 79 meters. Each of its 22 surface sluice gates measures 8 meters wide. The maximum discharge capacity of the TGP is 116,000 cubic meters, the biggest in the world. Sluice gates? Do they get floating debris in a Yangtze flood? So you can't have three feet of flow over the emergency spillway, which would save the dam from overtopping. What happens when you get three feet of water over the crest of the dam? Uncontrolled flow, for sure, but would it breach the dam? Me, I'm glad I live 200 feet above the nearest flood-control lake, which put two feet of water over the emergency spillway four or five years ago. |
| Posted by: Bobby 2020-07-21 16:33 |
| #38 Sadly no. And Qualcomm/SD Stadium/The Murph will be torn down once this one is operational, on the same site |
| Posted by: Frank G 2020-07-21 16:19 |
| #37 I'm going to start working on the new SDSU Aztecs stadium this fall Will it have one of those cool stepped pyramids with an altar for human sacrifice? (and drains for the blood, of course. OSHA will not be denied) |
| Posted by: SteveS 2020-07-21 16:14 |
| #36 Not going to change the name? |
| Posted by: Skidmark 2020-07-21 16:11 |
| #35 ;-) I'm going to start working on the new SDSU Aztecs stadium this fall |
| Posted by: Frank G 2020-07-21 15:55 |
| #34 Breached levees trap thousands as flooding in China worsens |
| Posted by: Skidmark 2020-07-21 15:55 |
| #33 China blasts dam to release floodwaters as death toll rises |
| Posted by: Skidmark 2020-07-21 15:54 |
| #32 China flooding leaves thousands trapped after levees fail, another dam at risk of breaking |
| Posted by: Skidmark 2020-07-21 15:49 |
| #31 AP, we gotta get you and Frank something to do. |
| Posted by: Skidmark 2020-07-21 15:48 |
| #30 The thing that blew me away with Table 3 of the mathematical paper on scheduling flood control was that flows for this so called flood control approached 60,000 cu meters/sec, which is a big flood event in itself. Some flood control scheme. CCP peer review obviously. |
| Posted by: Alaska Paul 2020-07-21 15:14 |
| #29 Here is a link that talks about the spillway. |
| Posted by: gorb 2020-07-21 15:10 |
| #28 China need to scram the 25 nuke plants on the river like yesterday! The remaining 35 need to be shut down and the contents of the spent rod cooling ponds moved to safety ... NOW! |
| Posted by: 3dc 2020-07-21 13:37 |
| #27 Google maps satellite photos don't show any spillways The entire middle section is the spillway. All the floodgates are open. What the photos don't show is if the middle top section also has an over topping spillway. |
| Posted by: Cromoth Sheatch5463 2020-07-21 13:28 |
| #26 Maybe they could make some siphons and drape them over the dam? |
| Posted by: gorb 2020-07-21 13:26 |
| #25 Opening the two locks I see would basically produce the same result as dynamiting a 100-ft section of the dam down to the river floor. Once you start opening both the upper and lower lock gates, there would be no way to control them as the pressure would override any mechanical means of control. |
| Posted by: Mullah Richard 2020-07-21 13:24 |
| #24 Google maps satellite photos don't show any spillways, but there are some locks they could open; dunno if that would be enough to make a difference. |
| Posted by: Rob Crawford 2020-07-21 13:09 |
| #23 Based on the flooding and widespread area, the food supply is gonna be really short. Good thing they're not in Flu/Tariff/Militarism fights with food producing nations. Oh...wait |
| Posted by: Frank G 2020-07-21 12:39 |
| #22 After reading the article (and trying to resurrect my college math classes....with slide rules), I came to the same conclusion AP. Based on the article data, they didn't leave themselves an 'out' for the current situation. Bobby's question about a separate emergency spillway would be answered 'No' (unless the article fails to mention one, or two, if they actually exist). |
| Posted by: Mullah Richard 2020-07-21 12:34 |
| #21 Yes, Frank. That raises the magnitude to the potential disaster. The unit hydrographs of the areas will be different, because the runoff coefficients will be different--really different--due to saturated soils. |
| Posted by: Alaska Paul 2020-07-21 12:21 |
| #20 #17 AP - consider too that upstream drainage area has to be totally saturated (i.e.: more runoff) |
| Posted by: Frank G 2020-07-21 12:06 |
| #19 Check out Table 3 in the paper, Mullah Rihard. That is the table for the schedule of water release from the dam for the 1981 20 year event. Look at the flow rates. This mathematical model will not work when there is no room in the reservoir. Hoping that flow and rain values drop is just that: hope. |
| Posted by: Alaska Paul 2020-07-21 11:59 |
| #18 That's not a comforting video 3dc. |
| Posted by: Secret Master 2020-07-21 11:56 |
| #17 Mullah Richard: I read the article on the mathematical model for spillway scheduling. This paragraph jumped out at me: Several big floods in the Yangtze River basin, including the flood in 1981, have caused serious disasters. Based on the Chinese guidelines for design flood, the flood in 1981 is used as the typical flood to design flood hydrographs of 20-year return period flood (the flood prevention standard for the Yangtze River). Finally, the design flood hydrograph of the TGR, with a return period of 20-year, is used to test the proposed method. The optimal scheduling of the proposed MILP model is compared with the conventional method. It seems to me that the present design margin for the dam has been reached with the present flow. Look, the dam is near volume capacity and there is no space left for absorbing floodwater volume. |
| Posted by: Alaska Paul 2020-07-21 11:47 |
| #16 37,700 cu meters/sec is 1.33 MILLION cu ft per second! 30.5 acre*ft per second, or 9.95 MILLION gallons per second!! To give a comparison to 3 gorges dam to Grand Coulee dam (another gravity dam), 3 Gorges is 3.4 times the volume of Grand Coulee. (soures: 3 gorges wikipedia, Grand Coulee Bureau of Reclamation fact sheet) |
| Posted by: Alaska Paul 2020-07-21 11:29 |
| #15 Some light reading on Three Gorges As long as it indicates WFO maybe they'll survive. |
| Posted by: gorb 2020-07-21 11:13 |
| #14 Some light reading on Three Gorges |
| Posted by: Mullah Richard 2020-07-21 10:24 |
| #13 |
| Posted by: 3dc 2020-07-21 10:18 |
| #12 ^ 33 M of which 23M |
| Posted by: Frank G 2020-07-21 10:15 |
| #11 Upstream is Chungking the largest city in the world. |
| Posted by: 3dc 2020-07-21 09:59 |
| #10 Or, 'opening all the gates' is the best they have. I suppose they could detonate a TN device upstream to vaporize some of the water... |
| Posted by: Skidmark 2020-07-21 09:47 |
| #9 Unless it was designed by idiots, there will be an emergency spillway that will pass all the incoming flow when the reservoir is full. Not may, in itself, be catastrophic. Or, 'opening all the gates' is the best they have. |
| Posted by: Bobby 2020-07-21 09:39 |
| #8 3dc: Well. I wondered why China would be supporting Antifa now. Guess they're trying to take us down with them. And Dear Lord, the Chaos this is going to unleash. Everything being made in China, all the trash, all the Chemical Plants. I... I don't know how to feel right now. I'm kind of numb thinking about the sheer scope. China as a nation might cease to exist entirely before the year is out. I'm... I'm actually scared of what this could mean. Could this be why we have two carrier groups in the South China Sea? |
| Posted by: Charles 2020-07-21 08:58 |
| #7 Charles, 400,000,000 people live in that area. |
| Posted by: 3dc 2020-07-21 08:47 |
| #6 They are facing it. |
| Posted by: 3dc 2020-07-21 08:44 |
| #5 More rain expected Weather in Huaibei, Anhui, China |
| Posted by: Skidmark 2020-07-21 08:44 |
| #4 3dc: Are you suggesting a Fukushima-type situation at these sites? Because even the cooling ponds over-flowing would be... well, catastrophic. The amount of radiation and contamination from 25 Nuclear Plants at once makes me think half of China may be uninhabitable when looking at the Chernobyl exclusion zone. And it would be Chernobyl. I don't believe for a second the Chinese built or would take care of their plants like the Japanese. |
| Posted by: Charles 2020-07-21 08:42 |
| #3 Sounds like California all over again. |
| Posted by: Spater Slaque5391 2020-07-21 08:41 |
| #2 There are about 25 nuclear reactors in the direct path... another 15 within striking distance and a total of 60 that could be hit depending on severity of the flood. |
| Posted by: 3dc 2020-07-21 07:55 |
| #1 The dam collapse warning is set at 175m, with collapse expected at 183. Current height 168m |
| Posted by: 3dc 2020-07-21 07:29 |