“刀把式”工作面切眼对接过程中撤架安全管理

Safety Management for Removing the Frame During the "Knife Handle" Face Cutting and Docking

"刀把式"工作面推进到切眼的变短点,工作面内支架的支护长度超过了切眼的长度。随着回采向前推进,需要逐步撤出工作面内多余的支架,在撤架过程中必须保证工作面顶板的支护安全,确保"刀把式"工作面切眼安全对接。

The ＂knife handle＂ working face is pushed to the short point of the cutting hole, and the supporting length of the inner bracket of the working face exceeds the length of the cutting hole. With the advance of mining, redundant supports in the working face need to be removed step by step. The supporting safety of the roof of the working face must be ensured in the process of pulling back, and the ＂knife-handle＂ cutting of the working face shall be ensured.