一次采全高大断面巷道施工工艺

Construction technology of large cross-section roadway of one pass cutting coal mining face

七五煤矿随着机械化水平不断提升,大型设备不断投入使用,原先采用的分层开采方式,改变为一次采全高。这就对巷道掘进速度、巷道断面客观地提出了更高的要求。如何进一步提高单进的课题越来越显得迫切。通过在施工中积极探索,从工艺上分析影响单进因素,整合了一套施工方案,效果显著。

With the rising level of mechanization in Qiwu coal mine, large equipment are being put into use, the miningmethod originally used slicing method, change to a mining full height. It objectively puts forward higher requirements tothe excavating speed and the roadway cross - section. The further improvement of the footage per round become the moreurgent task. Through the active exploration in the construction process, from the analysis of factor affecting the footage perround, summarizes a set of construction scheme, and takes remarkable effect.