花山煤矿4155急倾斜工作面顶板运动规律研究

Research on Roof Movement Rule of 4155 Steeply-inclined Working Face of Huashan Colliery

在工作面特定的生产技术和地质条件下,掌握工作面上覆岩层的运动规律,对合理控制顶板非常重要。在攀煤集团花山煤矿4155急倾斜工作面进行了矿压观测,通过对工作面周期来压和侧向支承压力进行观测,得出了顶板周期来压步距,总结出工作面推进方向上的顶板运动规律,确定了采场矿压显现的岩层范围,为进行合理的支护设计提供了科学依据。

It is important to master movement rules of overburden rock layers to control roof rationally in special production and geological conditions.Rock pressure monitoring was carried out on 4155 steep-inclined working face in Huashan Colliery of Panzhihua Coal Industry Group Co.,Ltd.Through monitoring of periodic weighting and side abutment pressure,the periodic weighting distance of 4155 steep-inclined working face roof was obtained,movement rules of roof were summarized in working face advancing direction.The range of rock layers where mine pressure strata appeared were determined,which provided scientific basis for reasonable supporting design.