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选择合理矿房暴露面积及矿柱尺寸对控制地压至关重要。山东金岭铁矿召口分矿运用地压控制理论，对倾斜矿体房柱进行合理划分，计算回采率η达７３．６％，同时维护了采场的稳固性。
Choosing a reasonable mine site exposure area and pillar size is critical to controlling ground pressure. Using the ground pressure control theory, the ore division of Shandong Jinling Iron Mine rationally divides the sloping ore column and calculates a recovery rate η of 73.6%, and maintains the stability of the stope.