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为了弄清楚不同倾角煤层开采围岩变形规律且进行合理的支护,应用数值模拟计算与模型试验相结合的研究方法,就煤层倾角对深部沿空巷道围岩变形的影响进行了研究,发现沿空巷道两帮及顶底移近量随煤层倾角变化的曲线呈现马鞍形;当煤层倾角在20°时,两帮及顶移近量最小,而倾角小于或大于此角度,两帮及顶底移近量均增大;马鞍形曲线的形状随采深的变化稍有变化,当采深逐渐加大时,大于20°一侧的曲线逐渐抬高,即大于20°与小于20°相同度数时,采深度数大的移近量更大一些。
In order to find out the deformation law of surrounding rock in different inclined seam mining and to carry out reasonable support, the research methods of numerical simulation and model test are applied to study the influence of coal seam dip on the deformation of surrounding rock of deep gob laneway. When the coal seam inclination is 20 °, the two approaches and the amount of top displacement are the smallest, while the inclination is less than or greater than this angle, and the two bosses and the top and bottom The shape of saddle-shaped curve changes slightly with the change of mining depth. When mining depth is gradually increased, the curve on the side of more than 20 ° gradually rises, that is, the same degree of more than 20 ° and less than 20 ° When the mining depth of the large number of moving closer to the larger.