webfact Posted October 18, 2017 Share Posted October 18, 2017 Earth dam in Lop Buri collapses By The Nation An earth dam in Lop Buri’s Khok Samrong district collapsed early on Wednesday, causing a massive amount of water to inundate farmland downstream and threaten many villages. The chief of the Tambon Phaniad Administrative Organisation said the dam collapsed at 4am after the water in the 400-rai (64-hectare) reservoir had filled to full capacity following many days of heavy rains. The embankment collapsed across a width of about 10 metres and had continued to widen. Local officials rushed to the scene to try to stop the water, while an urgent warning was issued to people living downstream to brace themselves for possible flash flooding. The Tambon Phaniad TAO chief said the reservoir was built about 10 years ago and it is located in Ban Mor Kaset village in Tambon Phaniad. He said if the rupture could not be fixed in time, thousands of rai of farmland would be inundated. The water was flowing downstream towards Tambon Klong Ket in the same district, he added. Source: http://www.nationmultimedia.com/detail/breakingnews/30329566 -- © Copyright The Nation 2017-10-18 Link to comment Share on other sites More sharing options...
NCC1701A Posted October 18, 2017 Share Posted October 18, 2017 man it is really sad to read these flood stories every year. Link to comment Share on other sites More sharing options...
robblok Posted October 18, 2017 Share Posted October 18, 2017 Yes it is real sad, its sad too is the fact that most construction in Thailand involves kick backs.. so people are keen on building something but then the maintenance does not result in many kickbacks (or it does and is done sub par) and then you get disasters like this. No maintenance, because why would you fix something before its broken. Link to comment Share on other sites More sharing options...
thaibeachlovers Posted October 18, 2017 Share Posted October 18, 2017 While I am not a dam engineer, the "dam" in the photo doesn't look anywhere substantial enough to be effective, and did they provide an overflow somewhere? It also appears to be only dirt with no rocks in the core. A disaster waiting to happen?????? Link to comment Share on other sites More sharing options...
248900_1469958220 Posted October 18, 2017 Share Posted October 18, 2017 158.14744 Acres is what I worked the dam out to be. a fair size.....What next? Lopburi, Ayutthaya,.....Pathumtani.....then.... Link to comment Share on other sites More sharing options...
hansnl Posted October 18, 2017 Share Posted October 18, 2017 2 hours ago, NCC1701A said: man it is really sad to read these flood stories every year. Overflow reservoirs should be sturdy. Not only slapdashed together with earth or sand! Link to comment Share on other sites More sharing options...
Reigntax Posted October 18, 2017 Share Posted October 18, 2017 2 hours ago, robblok said: Yes it is real sad, its sad too is the fact that most construction in Thailand involves kick backs.. so people are keen on building something but then the maintenance does not result in many kickbacks (or it does and is done sub par) and then you get disasters like this. No maintenance, because why would you fix something before its broken. This failure is caused by a lack of engineering input to provide splllways for when the dam reached full capacity. An earth gravity dam requires next to zero maintenance if constructed correctly which it obviously was as it adequately held until the water level reached the point of overflow where every earth dam will start to fail due to erosion. Link to comment Share on other sites More sharing options...
Reigntax Posted October 18, 2017 Share Posted October 18, 2017 2 hours ago, 248900_1469958220 said: 158.14744 Acres is what I worked the dam out to be. a fair size.....What next? Lopburi, Ayutthaya,.....Pathumtani.....then.... The surface area or volume of water within the dam is irrelavant for the dam wall design and the same for the dam width. The critical issue is the depth of water to be retained and resultant hydraulic pressure so the the dam berm has adequate mass to overcome the forces imposed by tbe water depth. Link to comment Share on other sites More sharing options...
248900_1469958220 Posted October 18, 2017 Share Posted October 18, 2017 Just now, Reigntax said: The surface area or volume of water within the dam is irrelavant for the dam wall design and the same for the dam width. The critical issue is the depth of water to be retained and resultant hydraulic pressure so the the dam berm has adequate mass to overcome the forces imposed by tbe water depth. Sure, I really have no idea what it all means. How big was this dam? is this significant? Link to comment Share on other sites More sharing options...
Reigntax Posted October 18, 2017 Share Posted October 18, 2017 17 minutes ago, 248900_1469958220 said: Sure, I really have no idea what it all means. How big was this dam? is this significant? 60 odd hectares of surface area is not necessarily large and earth dams are generally quite shallow in depth. It was probably not much more than a cheap way to store water using the natural terrain without too much thought given to the possibility that occurred. Link to comment Share on other sites More sharing options...
jgarbo Posted October 18, 2017 Share Posted October 18, 2017 6 hours ago, NCC1701A said: man it is really sad to read these flood stories every year. Well, earth dams are simple & cheap. But their capacity is limited. Water pressure eventually erodes the base, then adios, thuam leui. Link to comment Share on other sites More sharing options...
jgarbo Posted October 18, 2017 Share Posted October 18, 2017 3 hours ago, Reigntax said: 60 odd hectares of surface area is not necessarily large and earth dams are generally quite shallow in depth. It was probably not much more than a cheap way to store water using the natural terrain without too much thought given to the possibility that occurred. Rainfall has been well over predictions. Can't blame Prayut (or the Russians), and Mother Nature's not returning calls. Link to comment Share on other sites More sharing options...
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