综采工作面强制放顶技术在不同地质条件下的应用

Application of forced caving technology of fully mechanized mining face under different geological conditions

为研究不同地质条件下切眼强放对工作面回采的影响,以大柳塔煤矿活鸡兔井12314、12下202和12315这三个工作面为例,通过在工作面回采过程中是否采取强放以及强放过程中炮眼参数的变化,得出了不同措施下初采期间不同的顶板控制效果,丰富了综采工作面不同地质条件下的切眼顶板控制理论,指导了现场生产,同时也为类似条件下矿井初采措施的选择提供了依据。

In order to research the influence of forced caving in open-off cut of mining face under different geological conditions,taking No. 12314,12 202 and 12315 fully mechanized working faces in Daliuta coal mine as an example,the roof control effects in initial mining period under different roof control measures was researched,and the roof control methods of open-off cut in fully mechanized working faces under different geological conditions was enriched. The research can guide the field production and provide basis for the choice of roof control measures in initial mining period under similar conditions.