Modeling the impact of groundwater pumping on karst geotechnical risks in Sete Lagoas (MG), Brazil

Página do item simplificado
dc.creatorPaulo Henrique Ferreira Galvão
dc.creatorCamila Schuch
dc.creatorSimone Pereira
dc.creatorJulia Moura de Oliveira
dc.creatorPedro Assunção
dc.creatorBruno Conicelli
dc.creatorTodd Halihan
dc.creatorRodrigo de Paula
dc.date.accessioned2025-11-05T15:14:22Z
dc.date.accessioned2025-11-14T15:43:31Z
dc.date.available2025-11-05T15:14:22Z
dc.date.issued2024
dc.description.sponsorshipCAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
dc.description.sponsorshipOutra Agência
dc.format.mimetypepdf
dc.identifier.doi10.3390/w16141975
dc.identifier.issn2073-4441
dc.identifier.urihttps://hdl.handle.net/1843/85445
dc.languageeng
dc.publisherUniversidade Federal de Minas Gerais
dc.relation.ispartofWater
dc.rightsAcesso Aberto
dc.subjectHidrogeologia
dc.subjectÁgua
dc.subjectBrasil
dc.subject.otherÁgua subterrânea
dc.subject.otherCaracterização hidrogeológica
dc.subject.otherModelagem numérica
dc.subject.otherRisco geotecnico
dc.titleModeling the impact of groundwater pumping on karst geotechnical risks in Sete Lagoas (MG), Brazil
dc.typeArtigo de periódico
local.citation.epage23
local.citation.issue14
local.citation.spage1
local.citation.volume16
local.description.resumoKarst terrains can undergo geotechnical issues like subsidence and collapse, occurring both naturally and anthropogenically. The municipality of Sete Lagoas, in the State of Minas Gerais, Brazil, is notable for overexploiting a karst aquifer, resulting in adverse effects such as drying lakes and geotechnical problems. This study aims to assess the progression of geotechnical risk areas in the central urban area from 1940 to 2020 and simulate future scenarios until 2100. To achieve this, historical hydraulic head data, a three-dimensional geological model, and a karst geotechnical risk matrix were used to develop a calibrated FEFLOW numerical model. Results show that before the installation of the first pumping well in 1942, the natural groundwater flow direction was primarily northeast. However, in the 1980s, a cone of depression emerged in the city, creating a zone of influence (ZOI) with a surface area of around 30 km2. Between 1940 and 2020, twenty geotechnical collapse events occurred in defined risk zones, often in regions where limestone outcrops or is mantled in association with the ZOI. In future scenarios, if the 2020 total annual groundwater pumping rate (Q = 145,000 m3/d) remains constant until 2100, the geotechnical risk zones will continue expanding laterally. To establish a sustainable risk state, a 40% decrease in the pumping rate (Q = 85,500 m3/d) is necessary.
local.publisher.countryBrasil
local.publisher.departmentIGC - DEPARTAMENTO DE GEOLOGIA
local.publisher.initialsUFMG
local.url.externahttps://www.mdpi.com/2073-4441/16/14/1975

Arquivos

Pacote original

Agora exibindo 1 - 1 de 1
Imagem de Miniatura
Nome:
Modeling the impact of groundwater pumping on karst geotechnical risks in Sete Lagoas (MG), Brazil.pdf
Tamanho:
8.83 KB
Formato:
Adobe Portable Document Format
Baixar

Licença do pacote

Agora exibindo 1 - 1 de 1
Imagem de Miniatura
Nome:
License.txt
Tamanho:
8.83 KB
Formato:
Plain Text
Descrição:
Baixar

Coleções

Artigo de Periódico

Logo UFMG