老空区局部积水沿空送巷技术的研究与应用

Research and Application of Old Goaf Partial Ponding Sending Roadway Along Goaf Technology

郑州煤业集团公司采煤工作面采用走向长壁的采煤方法,跳采。接替工作面留窄小煤柱沿空送巷时,临近采空侧回风顺槽受探放水影响,掘进被迫中断时间较长,为此,裴沟煤矿通过留设防水煤柱施工改造回风顺槽,绕过老空积水区,提前施工回风顺槽里段,使回风顺槽如期贯通,保证了采面的正常接替。

The stike long wall method and jump mining are used in the faces of Zhengzhou Coal Industry Group Comp., When the replacement face retains the small narrow pillars and sends roadways along goal, the air return erossheading near the goal is influenced by water exploration, driving is forced to suspend for long time. So Peigou Coal Mine reforms the air return erossheading by retaining preventing water coal pillars, makes a detour through the old goal water district, advaneely construct the inside of the air return erossheading, makes the air return erossheading link up on time, guarantees the normal mining face succeed.