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以赵固二矿地质采矿条件为背景,通过构建数值模型,研究了巨厚松散层地质采矿条件下采高对地表下沉及水平移动特征、地表主要移动变形参数的影响。结果表明,随着采高的增加,地表最大下沉及水平移动值逐渐增大,水平移动范围显著增加,同时得出地表最大下沉值及水平移动值与采高成线性增长关系,而地表下沉系数及水平移动系数与采高成对数增长关系,并分别拟合出了地表下沉值、地表水平移动值、下沉系数及水平移动系数与采高之间的经验公式。
Based on the geological mining conditions of Zhaogou No.2 mine, the numerical simulation is conducted to study the effects of mining height on the characteristics of surface subsidence and horizontal movement and the main movement and deformation parameters of the ground surface under the conditions of the geologic and mining with thick and loose beds. The results show that with the increase of mining height, the maximum subsidence and horizontal movement of the ground surface gradually increase, and the range of horizontal movement remarkably increases. At the same time, the relationship between the maximum subsidence value and horizontal movement value and the linear growth of mining height is obtained. The relationship between subsidence coefficient, horizontal movement coefficient and mining height logarithm growth, and the empirical formulas between surface subsidence value, surface horizontal movement value, subsidence coefficient, horizontal movement coefficient and mining height were fitted respectively.