Por ser menos seguro, modelo de barragem de Brumadinho já foi banido no Chile

A barragem da Vale em Brumadinho usava uma tecnologia de construção comum em projetos de mineração pelo mundo, mas, por ser uma opção menos segura, já foi banida por países como o Chile, registra O Globo.

“O método, chamado de alteamento a montante, é o mesmo da barragem da Samarco em Mariana, que rompeu em 2015. Ele permite que o dique inicial seja ampliado para cima quando a barragem fica cheia de rejeitos de minério, usando o próprio material descartado – uma lama formada por ferro, sílica e água – como fundação. Segundo especialistas, ele é comumente usado por ser mais barato e ocupar menos espaço, mas tem mais riscos de romper devido a inexistência de uma base sólida. Eles defendem que esse modelo não seja mais usado em futuros projetos, no Brasil.”

Willy Lacerda, professor de engenharia geotécnica da Coppe/UFRJ, disse ao jornal que, “em 1974, um terremoto destruiu todas as barragens de rejeitos das minas de cobre, no Chile. Desde então eles [os chilenos] substituíram esse modelo pelo convencional, mais seguro.”

Conheça Por Dentro O Estrago Que A Esquerda Fez na Venezuela. Poderia Ser No Brasil. MAIS AQUI

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  1. Paulo disse:

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  1. Sonia/SP disse:

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  2. Evandro disse:

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    2. RSB2YyBhY2hxIHEgbyBxIGhvdXZlIGVtIE1hcmlhbmEgZSBCcnVtYWRpbmhvIGZvaSBvcT8/PyBGdWkgbGEgZW0gTWFyaWFuYSBlIGdlbnRlIGRlIGxhIGZhbGEgZG8gZXN0cm9uZG8sIGFw83MgIiBib21iYSIuIEhvdXZlIHRlcnJlbW90byBlbSBNRyBzZW1hbmFzIGFudGVzIGRlIEJydW1hZGluaG8hISEhISEhISEhISEh

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  3. Roberto disse:

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  4. b2b disse:

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    1. SmVhbiBCaS5jaG9uYSBXeWxseXMgZGV2ZXJpYSBlc3RhciBuYSBjYWRlaWEganVudG8gY29tIG8gTHVsYS4gVHVkbyBjYW5hbGhhIGRhIHBpb3IgZXNw6WNpZS4gIA==

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  5. Neto disse:

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  6. Niria disse:

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  7. Bonifácio disse:

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  8. Helena disse:

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  9. DireitaMassiva disse:

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  10. Luis disse:

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  11. EDUARDO disse:

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  12. André disse:

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  13. Rômulo disse:

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    1. QSBqdXNhbnRlIOkgbWFpcyBzZWd1cm8gbWFzIHRlbSBtYWlzIGltcGFjdG8gYW1iaWVudGFsLiA=

  14. Roberto disse:

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  15. Roberto disse:

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  16. Beth disse:

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  17. Gazpar disse:

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  18. Sonia/SP disse:

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    1. UG9pcyDpLCBhIHBvcHVsYefjbyBlbSB2ZXogZGUgcmVjbGFtYXIgZSBleGlnaXIgZG8gZ292ZXJubyB1bWEgc29sdefjbywgbuNvLCBjb250aW51YSBhanVkYW5kbyBhIGNhbmFsaGljZS4gRGVwb2lzIHZlbSBhIGRlc3RydWnn428gZGUgdG9kb3MsIGHtIGZpY2FtIGRpemVuZG86IGNvaXRhZGluaG9zLiBUZW1vcyBxdWUgYWdpciE=

  19. Augusto disse:

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    1. ySB1bSB0ZXJyZW1vdG8gZGUgcGVzc29hcyBkb2VudGVzOiBjb3JydXB0YXMgZSBlZ29j6m50cmljYXMuIFNlIG7jbyBjb2xvY2FybW9zIHRvZG9zIG5hIGNhZGVpYSwgdmly428gbXVpdG8gbWFpcy4=

  20. Luis disse:

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    1. RXNzZSB0aXBvIGRlIGJhcnJhZ2VtIOkgcHJvamV0YWRhIHBhcmEgdW0gdm9sdW1lIGRlZmluaWRvIChmaW5hbCksIG7jbyBkZXZlbmRvIGV4Y2VkZXIgc2V1IGxpbWl0ZSwgcXVhbHF1ZXIgYWx0ZWFtZW50byBwb2RlIHByb3ZvY2FyIGluc3RhYmlsaWRhZGUgZSBjb2xhcHNvIGRlIHN1YSBlc3RydXR1cmEu

  21. Nelson disse:

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  22. Luis disse:

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  23. Sergio disse:

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  24. Jânia disse:

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  25. Helliton disse:

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    1. RXhwbGlxdWUgbWVsaG9yIHBhcmEgcXVlbSBu428g6SBkYSDhcmVhLCBwb3IgZmF2b3IuIA==

  26. REVOLTADO disse:

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  27. Denon disse:

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  28. Elias disse:

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  29. Mauricio disse:

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  30. Renato disse:

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