Title: Study on Mining Adjustment Technology of Composite False Roof at Coal Face with Solid Filling
Abstract:Because of mining composite roof at 1801 coal face in Taiyuan Coal Mine,the working face of local area in mining range and drift were in the different levels,which led to a series of problems,such as ...Because of mining composite roof at 1801 coal face in Taiyuan Coal Mine,the working face of local area in mining range and drift were in the different levels,which led to a series of problems,such as the unreasonable arrangement of the device.Therefore,a adjustment method that the hydraulic support height reduced with the increase of face mining height was proposed,and roof supporting schemes were designed at the working face of cable anchor matching steel beam support and bolt matching steel beam support.In engineering practice,the mining under composite roof was carried out smoothly by adjusting the process of low slicing with coal roof and gradually increasing the mining height.The maximum measured subsidence of roof was 240 mm and the roof had no significant collapse,which solved the problems of roof stability control in mining adjustment.Read More
Publication Year: 2015
Publication Date: 2015-01-01
Language: en
Type: article
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