贵新煤矿井底车场过老巷群掘进施工

Heading Construction for Crossing Old Roadway Groups of Shaft Station in Guixin Colliery

贵新煤矿一掘进工作面施工先后通过三条老巷,在采用技术措施控制住破碎顶板、有害气体、老巷积水后安全顺利通过老巷群,为类似地质条件的施工提供借鉴。

Aiming at the heading face construction in Guixin Colliery successively by three old roadways, techni- cal measures have been used to control broken roof, harmful gases and old roadways seeper, and have crossed old roadway groups safely and smoothly after implementing technical measures, which provides a reference for heading construction of similar geological conditions.