8820工作面沿空切顶留巷巷内支护施工工艺

Construction Technology of Gob-side Entry with Roof Cutting at 8820 Working Face

阐述了沿空留巷支护的发展及施工的难点,沿空切顶留巷的原理与支护应用情况。以唐山沟煤矿8820工作面无煤柱开采为工程背景,介绍了沿空切顶留巷的施工设计与施工过程,重点介绍了巷内支护的施工及遇到的问题,并提出改进方案。

Expound the history and the construction difficulty of gob-side entry,the principle and the support application situation of gob-side entry with roof cutting. According to working face 8820 of Tangshangou mine besides it＇s mining without coal pillar craft, introduce the construction design and process of gob-side entry with roof Cutting. Emphasize on the difficulty of entry-in support construction and come up with the proposal aiming at the difficulty.