Daw Mill Mineshaft Cover Case Study: 015 An underground fire closed Daw Mill colliery in 2013. Since then work has been underway to put the fire out and make the site safe. A major part of this work has involved filling in the 2 mineshafts, which required a specially engineered cover plate to be constructed. This work has been undertaken by ECS Engineering Services in conjunction with JMC on behalf of the Coal Authority. Under normal conditions, a mineshaft would be decommissioned by removing all the underground equipment in a controlled manner using carefully scheduled plans. However, in this case the mine had to be evacuated as soon as the fire broke out and it has not been safe for anyone to re-enter since. As a result, a different approach has been devised, whereby t

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