Advances in Civil Engineering / 2018 / Article / Fig 4

Research Article

Shield-Roof Interaction in Longwall Panels: Insights from Field Data and Their Application to Ground Control

Figure 4

Evolution of (a) the number of yielding, (b) yield pressure, and (c) average pressure drop during a supporting cycle with longwall retreating time in panel LW22306 of Bulianta mine.

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