[Our] team wishes to acknowledge for the excellent work that Courtney Smith and his team performed for us this summer at [our mine]. Courtney was able to provide prompt input and provide some innovative approaches to some of the challenges we faced this summer. Of particular note, the entire summer was performed without an injury or loss time incident, and many of our slope remediation structures were repaired and installed allowing us to continue safely mining. Courtney and his team worked hard, safely, and diligently at each task and was able to complete everything we assigned to the group in a timely fashion. In addition, they maintained a positive attitude despite challenging conditions. We look forward to having Courtney and/or Adam back to site next summer tackling our next set of challenges with slope wall remediation…. Please extend our appreciation for the great work Courtney and his team completed this year. As in their words, we look forward in seeing the team “dominate” any future challenges for our next year’s campaign.
A variation of karst sinkhole grouting is the grouting of mined coal seams and workings located below existing infrastructure that exhibit the potential to propagate to the surface and cause sinkholes and/or subsidence.