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Observations and Analytic Calculations of Strata Movement Above Idealized Mine Structures

机译：理想化矿井结构上地层运动的观测与分析计算

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Modeling the failure and settlement of strata above mine openings requires a knowledge of several different geomechanical processes such as the failure of the rock mass above the mine opening, the fall of this mass into the opening, the associated bulking of the rock rubble, and the recompaction of the rubble under subsequent loading. These processes have been studied in this paper by using centrifuge experiments and numerical models to characterize the strata movement above a mine drift that is located below many relatively thin layers of strata. The centrifuge simulations show progressive failure of the strata, the formation of a corbeled arch over the mine drift and ultimately the formation of a subsidence trough. The quantitative data from these experiments are analyzed using finite element numerical techniques. (ERA citation 07:006704)

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