煤矿工作面矿压显现特征研究

Study on characteristics of mine pressure appearance in coal mine working face

工作面矿压显现特征对安全生产、支架选型和工作面巷道维护具有十分重要的意义,为研究某煤矿F63091工作面矿压显现特征,在工作面生产过程中布置3个观测站,18条观测线,对工作面推进过程中的矿压显现特征进行监测。监测结果显示,由于工作面存在倾角,顶板冒落的矸石向综放工作面下部区域的采空区方向滑落并堆积,对下部区域综放工作面和采空区上方顶板起到补充支承的效果,使得中部区域和上部区域液压支架所承受的载荷相对比下部区域的液压支架大。

Characteristics of mine pressure appearance in working face played an important role in safety production,support selection and roadway maintenance of working face. 3 observation stations and 18 observation lines were arrangedin productive process to minitor characteristics of mine pressure appearance in F63091 working face of a coal mine. Themonitoring result showed that because of the inclination of working face, the gangue falling from the roof slipped andaccumulated in the goaf area of fully mechanized caving face and played supplementary support to the upper fullymechanized top coal caving face and roof above mined out area, which made middle area and the upper region of hydraulicsupport under the load of the lower region of the hydraulic support