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Publikováno v:
IEEE Geoscience and Remote Sensing Letters. 19:1-5
Publikováno v:
Acta Geodaetica et Geophysica. 55:11-21
A collapse column is a geological structure formed by the dissolution of a soluble rock layer under certain hydrogeological conditions. This forms a cavity, which is filled by the overburden. Collapse columns have a great impact on coal mining safety