Stability of an abandoned siderite mine: A case study in northern Spain

Bodovalle is an iron carbonate mine located in Gallarta (near Bilbao, northern Spain), which is currently in the closure stage. The deposit was first exploited as an open-pit mine and later as an underground mine. The underground mine currently has 40 large rooms with rib pillars, occupying an area...

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Autores principales:	Trigueros Emilio, Cánovas Manuel, Arzúa Javier, Alcaraz Manuel
Formato:	article
Lenguaje:	EN
Publicado:	De Gruyter 2021
Materias:	room-and-pillar mining stability subsidence numerical methods back analysis Geology QE1-996.5
Acceso en línea:	https://doaj.org/article/7188b23abcdd45f79efa8833542b0436
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spelling	oai:doaj.org-article:7188b23abcdd45f79efa8833542b04362021-12-05T14:10:48ZStability of an abandoned siderite mine: A case study in northern Spain2391-544710.1515/geo-2020-0240https://doaj.org/article/7188b23abcdd45f79efa8833542b04362021-03-01T00:00:00Zhttps://doi.org/10.1515/geo-2020-0240https://doaj.org/toc/2391-5447Bodovalle is an iron carbonate mine located in Gallarta (near Bilbao, northern Spain), which is currently in the closure stage. The deposit was first exploited as an open-pit mine and later as an underground mine. The underground mine currently has 40 large rooms with rib pillars, occupying an area of 2,000 m long by 600 m wide. Room depth is around 200 m. The main geotechnical incident occurred in the NW1N zone, where an over-exploited rib pillar in poor condition was partially removed, leaving a 70-m roof span that eventually collapsed in 1999, resulting in a surface crater measuring 60 m in diameter. The collapse was preceded by noises and movements detected outside the mine. The subsidence was improved by means of infilling and monitoring. In 2014, residents living in homes built over the abandoned mine rooms detected very loud noises similar to those of 1999. The article describes a stability review carried out using advanced numerical methods (finite element method and boundary element method) and the geomechanical parameters obtained from a back analysis of the 1999 collapse.Trigueros EmilioCánovas ManuelArzúa JavierAlcaraz ManuelDe Gruyterarticleroom-and-pillar miningstabilitysubsidencenumerical methodsback analysisGeologyQE1-996.5ENOpen Geosciences, Vol 13, Iss 1, Pp 359-376 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	room-and-pillar mining stability subsidence numerical methods back analysis Geology QE1-996.5
spellingShingle	room-and-pillar mining stability subsidence numerical methods back analysis Geology QE1-996.5 Trigueros Emilio Cánovas Manuel Arzúa Javier Alcaraz Manuel Stability of an abandoned siderite mine: A case study in northern Spain
description	Bodovalle is an iron carbonate mine located in Gallarta (near Bilbao, northern Spain), which is currently in the closure stage. The deposit was first exploited as an open-pit mine and later as an underground mine. The underground mine currently has 40 large rooms with rib pillars, occupying an area of 2,000 m long by 600 m wide. Room depth is around 200 m. The main geotechnical incident occurred in the NW1N zone, where an over-exploited rib pillar in poor condition was partially removed, leaving a 70-m roof span that eventually collapsed in 1999, resulting in a surface crater measuring 60 m in diameter. The collapse was preceded by noises and movements detected outside the mine. The subsidence was improved by means of infilling and monitoring. In 2014, residents living in homes built over the abandoned mine rooms detected very loud noises similar to those of 1999. The article describes a stability review carried out using advanced numerical methods (finite element method and boundary element method) and the geomechanical parameters obtained from a back analysis of the 1999 collapse.
format	article
author	Trigueros Emilio Cánovas Manuel Arzúa Javier Alcaraz Manuel
author_facet	Trigueros Emilio Cánovas Manuel Arzúa Javier Alcaraz Manuel
author_sort	Trigueros Emilio
title	Stability of an abandoned siderite mine: A case study in northern Spain
title_short	Stability of an abandoned siderite mine: A case study in northern Spain
title_full	Stability of an abandoned siderite mine: A case study in northern Spain
title_fullStr	Stability of an abandoned siderite mine: A case study in northern Spain
title_full_unstemmed	Stability of an abandoned siderite mine: A case study in northern Spain
title_sort	stability of an abandoned siderite mine: a case study in northern spain
publisher	De Gruyter
publishDate	2021
url	https://doaj.org/article/7188b23abcdd45f79efa8833542b0436
work_keys_str_mv	AT triguerosemilio stabilityofanabandonedsideritemineacasestudyinnorthernspain AT canovasmanuel stabilityofanabandonedsideritemineacasestudyinnorthernspain AT arzuajavier stabilityofanabandonedsideritemineacasestudyinnorthernspain AT alcarazmanuel stabilityofanabandonedsideritemineacasestudyinnorthernspain
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Stability of an abandoned siderite mine: A case study in northern Spain

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