A Mechanical Model of the Overlying Rock Masses in Undersea Coal Mining and a Stress-Seepage Coupling Numerical Simulation

<div>Numerical simulation curve of failure field. (a) Failure field when the working face had advanced 120 m. (b) Height of overlying strata fractured zone in goaf.</div>

Advances in Civil Engineering

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Figure 8

Figure 8: A Mechanical Model of the Overlying Rock Masses in Undersea Coal Mining and a Stress-Seepage Coupling Numerical Simulation 