snoop1130 Posted June 3, 2021 Share Posted June 3, 2021 BANGKOK (NNT) - Bangkok City Hall is making sure its flood draining tunnels are working at full capacity this rainy season, to help prevent and mitigate flooding in the capital, especially in the eastern parts. The Bangkok Metropolitan Administration’s (BMA) Permanent Secretary Silpsuay Raweesangsoon has inspected the city’s flood tunnel and drainage system, to ensure proper operation of this flood mitigation infrastructure in this year’s rainy season. Located 25 meters deep underground, the 5.11-kilometer long tunnel helps drain water from Saen Saep and Lat Phrao canals into the Chao Phraya River. Water is drawn into the tunnel system at Rama IX swamp, travels through the tunnel along side Saen Saep canal, and is then pumped out to the Chao Phraya River at Phra Khanong pumping station. This Saen Saep and Lat Phrao canals’ drainage tunnel system helps prevent flooding in the northwestern districts of Bangkok, namely Lat Phrao, Wang Thonglang, Bang Kapi, Huai Khwang, Bueng Kum, and Saphan Sung. The BMA’s Permanent Secretary, said today the city currently has two more flood drainage tunnel systems available at Makkasan Swamp and at Bang Sue canal. The construction for another drainage tunnel system in Prawet district is expected to be completed this year. This new tunnel is expected to help improve drainage capacity in the eastern parts of the capital. The BMA is currently planning to have nine flood drainage tunnels in operation by next year. -- © Copyright NNT 2021-06-03 - Whatever you're going through, the Samaritans are here for you - Follow Thaivisa on LINE for breaking COVID-19 updates 1 Link to comment Share on other sites More sharing options...
Popular Post Muhendis Posted June 3, 2021 Popular Post Share Posted June 3, 2021 9 hours ago, snoop1130 said: Located 25 meters deep underground, That's below sea level isn't it? 3 Link to comment Share on other sites More sharing options...
Popular Post Excel Posted June 3, 2021 Popular Post Share Posted June 3, 2021 2 minutes ago, Muhendis said: That's below sea level isn't it? So do you assume that the main purpose of this civils project was perhaps not to alleviate flooding, rather yet another award to certain construction company of billions of baht. Hence the deeper it was than the more works was required and concrete. https://www.tunneltalk.com/Thailand-4May2017-Terratec-tight-radius-EPBMs-for-Bangkok-drainage-tunnel-project.php 3 1 Link to comment Share on other sites More sharing options...
hotchilli Posted June 4, 2021 Share Posted June 4, 2021 11 hours ago, snoop1130 said: Located 25 meters deep underground, the 5.11-kilometer long tunnel helps drain water from Saen Saep and Lat Phrao canals into the Chao Phraya River. Can they push water up-hill now? 1 Link to comment Share on other sites More sharing options...
hotchilli Posted June 4, 2021 Share Posted June 4, 2021 1 hour ago, Muhendis said: That's below sea level isn't it? You noticed that too huh? 1 Link to comment Share on other sites More sharing options...
Quickmill Posted June 4, 2021 Share Posted June 4, 2021 Considering that Bangkok is just 1,5 mt above the sea level, i don't think was anyhow possible to dig a tunnel with a diameter of approx 10mt maintaining it at least at sea level. In the article is wrote that the Phra Kanong pump station will pump the water to the Chao Phraya river...."up-hill"???? Link to comment Share on other sites More sharing options...
Muhendis Posted June 4, 2021 Share Posted June 4, 2021 2 minutes ago, Quickmill said: In the article is wrote that the Phra Kanong pump station will pump the water to the Chao Phraya river...."up-hill" Yes, but that's what pumps do. Trouble is the water might get a bit salty so the pumps will be a bit special I expect. Link to comment Share on other sites More sharing options...
Almer Posted June 4, 2021 Share Posted June 4, 2021 Has the governor thought of giving the pumps there annual service or even check they are still there 1 Link to comment Share on other sites More sharing options...
Almer Posted June 4, 2021 Share Posted June 4, 2021 3 hours ago, Excel said: So do you assume that the main purpose of this civils project was perhaps not to alleviate flooding, rather yet another award to certain construction company of billions of baht. Hence the deeper it was than the more works was required and concrete. https://www.tunneltalk.com/Thailand-4May2017-Terratec-tight-radius-EPBMs-for-Bangkok-drainage-tunnel-project.php Good article thankyou 2 Link to comment Share on other sites More sharing options...
Magenta408 Posted June 4, 2021 Share Posted June 4, 2021 I believe Bangkok is currently under sea water level. 25 meters BSL is a mining shaft for coal. Link to comment Share on other sites More sharing options...
PETERTHEEATER Posted June 4, 2021 Share Posted June 4, 2021 7 hours ago, Muhendis said: That's below sea level isn't it? Yep! Gravity won't help here that's why there are pumps are there (.......were there?) Link to comment Share on other sites More sharing options...
PETERTHEEATER Posted June 4, 2021 Share Posted June 4, 2021 17 hours ago, snoop1130 said: helps prevent flooding ......by delaying the inevitable......???? Link to comment Share on other sites More sharing options...
phetphet Posted June 4, 2021 Share Posted June 4, 2021 The Bangkok Metropolitan Administration’s (BMA) Permanent Secretary Silpsuay Raweesangsoon has inspected the city’s flood tunnel and drainage system, to ensure proper operation of this flood mitigation infrastructure in this year’s rainy season. Don't know about inspected it. But at least she has found something to point at. Link to comment Share on other sites More sharing options...
Elkski Posted June 4, 2021 Share Posted June 4, 2021 So the pumps need to have massive submerged parts, be resistant to salt water corrosion. Capable of moving water in a 10 m pipe? How far? Do they have Spares? Good reason to buy a condo. Link to comment Share on other sites More sharing options...
Excel Posted June 4, 2021 Share Posted June 4, 2021 36 minutes ago, Elkski said: So the pumps need to have massive submerged parts, be resistant to salt water corrosion. Capable of moving water in a 10 m pipe? How far? Do they have Spares? Good reason to buy a condo. Spares to Thais are an unknown. You only need spares if you undertake maintenance. Link to comment Share on other sites More sharing options...
tonray Posted June 4, 2021 Share Posted June 4, 2021 Flood Tunnels ? I thought that's what Lat Phrao road was for ? Link to comment Share on other sites More sharing options...
impulse Posted June 4, 2021 Share Posted June 4, 2021 (edited) 12 hours ago, hotchilli said: Can they push water up-hill now? If water enters above sea level and exits at sea level, the pipes can be 1000 meters deep and the water will still flow naturally. That's how you can stick a tube into your gas tank and siphon out of it as long as the end of the tube is below the fluid level in the tank. The fuel travels uphill. The controlling factor is the change in elevation between the inlet and outlet. No pumps required, unless they want the water to flow faster than it would naturally. Or if they take suction below the outlet (like Holland and New Orleans). Man has pumped water up hills for millennia. Nature's been doing it for billions of years- artesian springs. People really need to quit commenting on stuff where they have no clue. Edited June 4, 2021 by impulse 1 Link to comment Share on other sites More sharing options...
Stargeezr Posted June 4, 2021 Share Posted June 4, 2021 Not all of Bangkok is so close to sea level, after all the river does not flow up hill, so think of that complicated scientific situation. It is not all that hard to fathom. Of course if you never had any schooling, well sorry about that. People should really think before they talk or type, but then again this forum is full of all kinds isn't it. Geezer Link to comment Share on other sites More sharing options...
Excel Posted June 4, 2021 Share Posted June 4, 2021 4 hours ago, Stargrazer9889 said: Not all of Bangkok is so close to sea level, after all the river does not flow up hill, so think of that complicated scientific situation. It is not all that hard to fathom. Of course if you never had any schooling, well sorry about that. People should really think before they talk or type, but then again this forum is full of all kinds isn't it. Geezer Well if you think 1.5 mtrs is not close to sea level then you must come from the Maldives https://earth.org/data_visualization/sea-level-rise-by-the-end-of-the-century-bangkok/#:~:text=Built on the Chao Phraya,the end of the century. Link to comment Share on other sites More sharing options...
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