Segurança das barragens do nordeste brasileiro: uma análise com base nas informações cadastradas no SNISB
Ensuring the safety condition of dams is essential for all those involved, and measures to make sure this condition must be adopted. In 2019 and 2020, Brazilian states invested R$ 44,493,159.82 in dam safety and recovery actions throughout Brazil, with the northeast region responsible for 92% of inv...
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| Formato: | bachelorThesis |
| Idioma: | pt_BR |
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Universidade Federal do Rio Grande do Norte
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| Endereço do item: | https://repositorio.ufrn.br/handle/123456789/46289 |
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| Resumo: | Ensuring the safety condition of dams is essential for all those involved, and measures to make sure this condition must be adopted. In 2019 and 2020, Brazilian states invested R$ 44,493,159.82 in dam safety and recovery actions throughout Brazil, with the northeast region responsible for 92% of investments, totaling R$ 40,779,986, 98. Using data from the National Information System on Dam Safety (SNISB), this article presents the analysis of data for dams located in Northeast Brazil and in the state of Rio Grande do Norte, focusing on the Risk Category (CRI) , Potential Damage Associated (DPA), Global Hazard Level (NPGB) and Dam Safety Plan (PSB). The analyzes indicated that, in 2021, a third of the dams in the Northeast and 45% of the dams in the RN are not categorized in relation to CRI and DPA. Among the dams categorized in terms of CRI and DPA, 50% and 60% of the dams in the Northeast are at maximum level, respectively. In RN, 79% and 70% are at the maximum level, respectively. The NPGB underreporting, despite showing a reduction in recent years, still reaches 84% for the Northeast and 98% for the RN. Among those who notified the NPGB in the Northeast region, one third reported being in a state of alert or emergency. Regarding the PSB, despite being a mandatory and provided for by law for dams included in the National Dam Safety Policy (PNSB), only 12% in the Northeast and 2% in the RN reported having the document. It is concluded that the scenario regarding the safety of dams registered with the SNISB, both in the Northeast region and in the state of Rio Grande do Norte is unfavorable, with underreporting of important indicators and disobedience of a mandatory item required by law. |
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