The major factors that affect the stability of the structure are rotational angle of the voussoir beam, ratio of length and height, rock type and height of carrying rock strata.

• 本文以开采后岩层移动实测的形态曲线为基础，建立了断裂岩块间的铰合关系，进一步证明了“砌体梁”力学模型是层状矿体开采后岩层的基本结构形式。