准确地计算与确定解放层的解放范围,是开采设计中一个十分重要的问题。关于解放层沿倾斜、走向方向以及煤层间的有效垂距等解放范围,国内外许多学者通过理论推证和实际观测,建立了若干确定原则和计算公式。国内矿井生产和矿井设计实践表明,其中的某些内容尚不能有效解决生产实际中出现的问题,例如,在沿走向解 Accurately calculating and determining the liberation area of ​​the liberation level is a very important issue in the design of mining. With regard to the emancipation scope of the liberation level along the slope, the direction and the effective vertical distance between coal seams, many scholars at home and abroad have established certain principles and formulas by theoretical inference and practical observation. Domestic mine production and mine design practice shows that some of these contents are not yet effective in solving the problems in production practice. For example,