Coal mining may cause underground rock strata movement and overexploitation of aquifers around open-pit coal mines, resulting in land subsidence, groundwater loss, and gas flow. Consequently, some potential safety and environmental problems may arise, such as building collapse, groundwater destruction, water inrush into coal mines, gas leakage, and air contamination. The fractures formed after strata breakage are the origin of the above disasters, which serve as the indispensable channels for coalbed methane and groundwater.

Therefore, several problems could be revealed by investigating the process of underground rock strata movement and breakage, for example, fractures evolution law in rock strata, gas flow characteristics induced by coal mining, the law of gas adsorption, gas concentration, and gas migration in abandoned goaves, mechanism of influence of underground rock strata breakage on the water level of the overlying aquifers and the aquifers around open-pit coal mines, and flow characteristics of grouting in mining-induced fractures for plugging or backfilling. This will contribute to developing green mining technologies, such as backfilling mining, groundwater conservation mining, and coal and gas co-extraction. Therefore, it is believed that this research on geofluids flow in rock strata movement plays a fundamental role in safe mining.

The aim of this Special Issue is to collate original research papers that advance the understanding of geofluids flow in rock strata movement induced by coal mining. Review articles discussing the current state of the art are also welcome.

Potential topics include but are not limited to the following:

• Fractures evolution law in rock strata
• Flow characteristics of grouting in mining-induced fractures for plugging or backfilling
• Gas flow characteristics induced by coal mining
• The law of gas adsorption, gas concentration, and gas migration in abandoned goaves
• Mechanism of influence of underground strata breakage on the water level of the overlying aquifers and the aquifers around open-pit coal mines