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一、引言按概率积分法对地表进行预计时,在水平煤层条件下,通常有以下四个参数:下沉系数η、主要影响范围角正切tgβ、拐点平移距S及水平移动系数b,其它参数可通过这四个参数间接求得。上述的各个参数与采深的关系式往往是以经验公式的形式给出的。然而,以概率积分法这一理论为基础的岩移参数公式也应有其理论形式。本文以概率积分法出发,以通常公认的最大下沉值不随深度变化这一事实为基础,推导出开采水平煤层时概率积分法的岩移参数与采深的理论关系式。
I. INTRODUCTION When predicting the earth’s surface by the method of probability integration, there are usually four parameters in the horizontal coal seam: the subsidence coefficient η, the main influence range angle tangent tgβ, the inflection point translation S and the horizontal movement coefficient b, and other parameters Can be obtained indirectly through these four parameters. The relationship between the above parameters and mining depth is often given in the form of empirical formula. However, the formula of rock migration parameters based on the theory of probability integration should also have its theoretical form. Based on the fact that the maximum sinking value is generally not recognized as the depth changes, the paper deduces the theoretical relation between the rock movement parameters and the mining depth of the probability integration method when mining horizontal coal beds.