Water-resisting Property and Key Technologies of Grouting Reconstruction of the Upper Ordovician Limestone in North Chinas Coalfields

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Focusing on the Upper Ordovician limestone, this book explores its potential as an effective water barrier in mining operations, particularly to mitigate water inrush incidents that contribute significantly to coal mine accidents in China. It details in-situ testing methods for assessing the limestone's water resistance and introduces specialized grouting techniques to enhance its barrier capabilities. The innovative approaches have been successfully implemented in two coal mines, suggesting broader applicability for other mining and underground engineering projects.