摘要
通过对砚北煤矿2502采区开采过程中矿山压力显现情况的分析和计算,确定了1504采区综放工作面液压支架的工作阻力,并结合工作面掘进过程中的矿压显现情况,选择了能够满足现场实际需求的支架类别和结构形式。现工作面已推采1 200余m,在几次矿压显现中,震动能量达3.66×106 J,工作面支架和两巷道的超前支架均能满足可靠支护要求。
With the analysis and calculation on the conditions of the mine strata pressure behaviors occurred during the mining process of the No.2502 mining block in Yanbei Mine,the work resistance of the hydraulic powered support applied to the fully mechanized coal mining face in No.1504 mining block was determined.In combination with the conditions of the mine strata pressure behaviors occurred during the driving process of the coal mining face,the type and structure mode of the hydraulic powered support could be selected to meet the site actual requirements.When the coal mining face was advanced forward about 1 200 m,the seismic energy from the several mine strata pressure behaviors would reach at 3.66×106 J,the hydraulic powered supports applied to the coal mining face and the pilot supports applied to the two gateways all could meet the reliable support requirements.
出处
《煤炭科学技术》
CAS
北大核心
2011年第11期91-93,共3页
Coal Science and Technology
关键词
矿山压力
监测
液压支架
设备选型
mine strata pressure
monitoring and measuring
hydraulic powered support
equipment selection
