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通过对孙疃矿10煤层首采1028工作面开采过程中工作面、运输巷及回风巷的矿压观测,分析了首采工作面煤层的矿压显现特征、顶板运移规律、液压支架的性能和对该煤层顶底板的适应性及控制效果,并利用工作面的现场观测数据,对初次来压和周期来压期间支架载荷特征、工作面顺槽超前支承压力分布规律等进行了分析,为后期开采合理地安排回采工序、选择采煤参数、支护方式和顶板管理方法提供科学依据。
By analyzing the pressure of work face, transportation lane and return airway during the first mining of No.108 coal seam in No 10 coal seam of Sun 疃 Mine, the characteristics of underground pressure in coal seam, the roof movement law and the hydraulic support Performance and the adaptability and control effect of the top and bottom of the coal seam. By using the on-site observation data of the working face, the load characteristics of the support during the initial pressure-on and periodic pressure- For the latter part of mining reasonable arrangements for the mining process, choose coal mining parameters, support methods and roof management methods to provide a scientific basis.