南阳矿3202工作面开采地表沉陷观测与分析

Observation and Analysis of Mining Surface Subsidence in the 3202 Working Face of Nanyang Mine

为解决南阳煤矿山区下开采后引发的地表沉陷和采动损害问题,结合该矿生产实际和地形特点,在3202工作面上方布置了四条观测线,根据实测数据计算得到地表移动变形参数,分析地表移动变形特征,得到了山区地形条件下开采的地表移动变形规律。结果表明,南阳煤矿山区下开采地表变形规律与平原地区整体上较为接近,受地表坡度及坡向的影响,山区水平移动与平地有着较大差异;受山区地形影响,地表移动范围明显比平坦地貌要大。

In order to solve the problems of surface subsidence and mining damage caused by mining under the mountainous area of Nanyang Coal Mine,combined with the actual production and terrain characteristics of the mine,four observation lines are arranged above the 3202 working face.According to the actual measured data,the surface movement and deformation parameters are calculated,and the surface movement and deformation characteristics are analyzed to obtain the surface movement and deformation laws of mining under mountainous terrain conditions.The results show that the deformation law of the mining surface under the mountainous area of Nanyang Coal Mine is similar to that in the plain area as a whole.Due to the influence of surface slope and slope aspect,there are relatively significant differences in horizontal movement between mountainous areas and flat areas;Due to the influence of mountainous terrain,the range of surface movement is significantly larger than that of flat landforms.