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为了更好地了解采空塌陷的变化特征,对采空塌陷区的体积扩展规律及其预计方法进行了研究。在相同和不同的地质条件下,将开采面积按照10%的步距增大,分别预计地表各移动变形值,通过多组实验数据分析得出开采面积与沉陷体积成线性正相关,同时推算出采空塌陷区体积的计算方法。实验结果表明:同一地质条件下,相同的开采面积会产生相同的沉陷体积;对于不同的开采条件,提出以煤层开采面积S和下沉系数q计算采空塌陷区体积的新方法,并验证该方法具有较好的适用性。
In order to get a better understanding of the variation characteristics of the mined-out collapse, the law of volume expansion of the mined-out subsidence area and its prediction method are studied. Under the same and different geological conditions, the mining area will increase according to 10% steps, respectively, the surface deformation of the movement were estimated by multiple sets of experimental data analysis mining area and subsidence volume into a linear positive correlation Calculation Method of Volume of Subsidence Area. The experimental results show that under the same geological conditions, the same mining area will produce the same subsidence volume. For different mining conditions, a new method to calculate the volume of the mined-out subsidence area based on the coal mining area S and the subsidence coefficient q is proposed and verified The method has good applicability.