邢台矿厚煤层分层开采垂直布巷技术

Vertical gateway layout technology for thick seam slicing mining in Xingtai Mine

在邢台矿厚煤层分层开采过程中,为提高底分层工作面煤炭采出率,通过分析顶分层采场围岩应力分布规律,优化巷道支护方式和施工工艺,将底分层工作面巷道布置在顶分层相应巷道正下方,实现分层开采垂直布巷,可以回采护巷煤柱。

During the slicing mining operation in the thick seam of Xingtai Mine,with the analysis on the surrounding rock stress distribution law of the mining area in the top slice seam and the optimization of the gateway support method and the construction technology,the gateway of the bottom slice seam mining face was located the right bottom of the top slice seam gateway and therefore the vertical gateway layout can be made for the slicing mining and the coal pillars can be excavated.