采用多掩护式专用支架回撤工作面液压支架

The withdrawing technology of hydraulic supports in fully mechanized mining face by special shield hydraulic supports

通过介绍神华神东公司大柳塔煤矿52306-2面7 m大采高缩面回撤采用五掩护顺序回撤支架工艺及大柳塔煤矿12114工作面5.5 m大采高工作面采用四掩护顺序回撤支架工艺实践,证明了在合理的采高范围内,使用此方法进行回撤支架在安全管理、施工工艺及降本增效上具有显著优势,为大采高综采工作面回撤工作积累了宝贵经验。

The paper introduced the application practice of hydraulic supports withdrawal technique by using special shield hydraulic supports in No. 52306-2 fully mechanized mining face with 7m mining height and No. 12114 fully mechanized mining face with 5. 5m mining height of Daliuta coal mine. The practice shows that within the reasonable range of mining height,the withdrawal technique has significant advantages in safety management,construction technology and cost reducing. The practice has accumulated valuable experience for the hydraulic supports withdrawal of fully mechanized working face.