残煤复采工作面覆岩特征分析及充填开采技术探究

Analysis of Rock-covering Characteristics and Mining With Filling Technology Study of Residual Coal Stope

为保证1701充填工作面回采期间上覆岩层及回采巷道的稳定,通过对复采工作面覆岩特征进行分析,结合1701工作面的具体情况对回采巷道的支护方案、充填复采各项参数进行具体设计,并进行矿压监测。结果表明,工作面回采期间,基本顶无明显的周期来压现象,控制了顶板下沉,回采巷道围岩变形量满足使用要求。

In order to ensure the stability of overlying strata and roadway during mining in 1701 filling face,this paper analyzes the characteristics of rock-covering in stope,and combined with the concrete condi. tions of 1701 face,gives the supporting scheme of mining roadway,detailed parameters of filling and remining, and the ore pressure monitoring. The results show that there is no obvious periodic pressure phenom. enon in the basic roof during mining,and the roof subsidence is controlled,and the deformation of the sur. rounding rock of the mining roadway meets the requirement of usage.