论文部分内容阅读
综合机械化固体充填采煤技术能实现密实充填,其岩层移动和地表沉陷规律与垮落式采煤显著不同.在较系统分析充填采煤岩层移动的等价采高理论基础上,建立了密实充填采煤岩层移动的结构力学模型,并进行了连续介质力学分析,给出了相应的岩层移动和地表沉陷计算公式.通过实例分析,提出了在密实充填后,如还采用概率积分法预计地表沉陷,则应对传统的地表下沉预计参数加以修正.可为密实充填采煤覆岩移动和地表沉陷分析提供相关思路以及理论和方法.
The mechanized filling technology of solid filling can realize the dense filling, the movement of the rock and the law of surface subsidence are obviously different from that of the caving coal mining.Based on the systematic analysis of the equivalent mining theory of the movement of the filling and mining strata, The structural mechanics model of coal seam movement is established and the continuum mechanics analysis is carried out, and the formulas for calculation of rock movement and surface subsidence are given.After the actual filling, the method of probability integration is also used to predict the surface subsidence , The traditional prediction parameters of surface subsidence should be corrected, which can provide relevant ideas, theories and methods for the analysis of overburden strata movement and surface subsidence.