Water level variation of explorational boreholes in mining sites is one of the most direct
representations of water inrush risk. Despite recent efforts on mine water inrush accident …

The article presents a method of selecting an arch yielding support for preparatory workings
driven in a hard coal seam. Particular attention was paid to discontinuous deformation in the …

As a typical disaster-causing geological structure, karst collapse pillar (KCP) is widely
distributed in coalfields of northern China. The interior of KCP is filled with loose and weakly …

Accurately determining rock elastic modulus (EM) and uniaxial compressive strength (UCS)
using laboratory methods requires considerable time and cost. Hence, the development of …

Water inrush hazard is one of the major threats in mining tunnel construction. Rock particle
migration in the seepage process is the main cause of water inrush pathway and rock …

Ventilation on demand (VoD) is a method applied to underground mine ventilation systems
to maintain safety while reducing fan energy consumption. VoD considers the changes in …

To study and prevent bed separation water inrush accidents in coal mines, it is necessary to
evaluate the risk according to the limited geological data correctly. In this work, based on …

Water inrush hazards can be effectively reduced by a reasonable and accurate soft-
measuring method on the water inrush quantity from the mine floor. This is quite important …

Evaluations of the risk of fault-induced water inrush hazard is an important issue for mining
engineering applications. According to the characteristics of the seam floor during mining …

Karst water in coal floors is the most common hazard in the coal fields of North China. Water
inrush disasters always occur due to reductions in the efficacy of a coal floor's water …