Abstract
The research results on the utilizability of the weathered and filled zone of the TOL as an aquifuge, as discussed in Chap. 4, verify that the weathered and filled zone exists in the TOL with good water-resisting performance in some mining areas and can be used as an aquifuge. However, the aquifuge between the coal seam and the Ordovician karst fracture water-bearing interval may not stand the action of the water pressure in the seam floor if the total thickness is not sufficient. It is imperative to conduct additional research on the grouting reconstruction in the water-bearing interval of the TOL. The objective is to transform the water-bearing interval into the water-resisting interval when needed to ensure safe coal mining.
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Wang, H. (2020). Criterion for Utilization and Grouting Reconstruction of Top of Ordovician Limestone. In: Water-resisting Property and Key Technologies of Grouting Reconstruction of the Upper Ordovician Limestone in North China’s Coalfields. Springer Theses. Springer, Cham. https://doi.org/10.1007/978-3-030-40116-0_5
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DOI: https://doi.org/10.1007/978-3-030-40116-0_5
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