Research Article

Mechanism and Control of Water–Rock Coupling-Induced Disaster when Mining below the Unconsolidated Confined Aquifer

Table 5

Influence of the first breaking interval on the overlying strata structure stability.

Breaking interval (m)Overlying load (MPa)Displacement (mm)Fracture height (m)
Key strataLower water-resistingKey strataLower water-resisting

305.414.473968.003877.0055.00
275.294.603955.003856.0055.00
250.834.41231.2096.6551.63
201.056.58112.5028.2834.75