用概率积分法进行地表移动预计时,倾斜煤层比水平煤层要多考虑一个开采影响传播方向问题,通常引用开采影响传播角来表示。习惯上认为开采影响传播角与最大下沉角基本相等,直接取开采影响传播角等于最大下沉角代入预计公式运算。但根据研究发现开采影响传播角与最大下沉角之间存在着函数关系,在很多情况下两者是不相等的,应根据其函数关系求得开采影响传播角进行预计。现就两者之间的关系进行讨论。水平煤层开采后,开采影响传播角和 When using the probabilistic integration method to predict the movement of the ground surface, the inclined coal seam needs to consider more than one horizontal coal seam influence the direction of propagation, which is usually quoted by the mining influence propagation angle. It is customary to think that the mining influence angle of propagation is substantially equal to the maximum subsidence angle and the mining angle of influence propagation is equal to the maximum subsidence angle and substituted into the predicted formula operation. However, according to the study, it is found that there is a functional relationship between the influence propagation angle and the maximum subsidence angle. In many cases, the two are unequal. The prediction of the influence angle of mining exploitation should be based on the functional relationship. Now discuss the relationship between the two. After horizontal seam mining, mining affects the propagation angle and angle