π型钢梁替换悬移支架在非停产中的应用

π Steel Beam to replace Movable Support in the Non-stop Production

受地质条件影响,白坪煤业公司11121炮采放顶煤工作面回采期间煤层逐渐变薄直至不可采,采取采面向前推进期间,将悬移支架拆除并替换为π型钢梁配单体液压支柱支护的方法,保证了矿井产量计划和正常生产接替。

Affected by the geological conditions,the impact of 11121 face caving coal seam during mining can not be taken until the gradual thinning to take forward during the pre-mining-oriented will be removed and replaced movable support for the π-shaped Steel Beam with single hydraulic props supporting the methods to ensure normal production of the mine production plan and to succeed.