中文摘要：

固体充填条带开采时,等效采厚方法是分析覆岩移动与地表沉陷问题的主要方法,其等效厚度的确定是应用该方法的关键,充填体压缩率是计算等效采厚的关键参数。文中总结分析了充填条带开采时充填体压缩率的影响因素,并运用数值模拟重点分析了充填体充留宽度、开采深度、覆岩岩性对充填体压缩率的影响。模拟结果表明：当充填宽度由40 m增加到200 m时,充填体压缩率由0.023增大到0.097;当采深由150 m增大到750 m时,充填体压缩率由0.01增大到0.06;当岩性折减系数由0.33增大到2时,充填体压缩率由0.111减小到0.037。在实际应用中可根据压缩率与相关因素的相互关系确定不同开采条件下充填体的压缩率,进而准确的计算等效采厚,并通过实例验证了此方法的适用性和准确性,为准确分析及预计充填条带开采后覆岩移动与地表沉陷问题提供了新的方法。

英文摘要：

Method of equivalent mining thickness is the principal method to analyze strata movement and surface subsidence when mining solid filling strip,whose equivalent thickness is the key to the application of the method,And the compression ratio of determining filling body is the key parameter to calculate equivalent mining thickness. In this paper,the influencing factors of compression ratio in filling strip mining were analyzed and summarized. And using numerical simulation mainly analyzed the influence of the width of coal pillar and filling,depth of mining,and the reduction factors of rock properties on compression ratio. Simulation results show that when the filling width increases from 40 m to 200 m,the compression ratio of filling body increases from 0. 023 to 0. 097; when mining depth increases by 150 m to 750 m,the compression ratio of filling body increases from 0. 01 to 0. 06; when the reduction coefficient of strata lithology increases from 0. 33 to 2,the compression ratio of filling body reduces from 0. 111 to 0. 037. The relation between the compression ratio and related factors was derived from the analysis. In a practical application,compression ratio of filling body under different mining conditions can be determined according to the relationship between compression ratio and related factors. On this basis the accurate equivalent mining thickness is calculated. Meanwhile the applicability and accuracy of this method has been verified by cases. This method provides a new idea to analyze and expect problems of strata movement and surface subsidence meeting when mining filling strip.