煤体固化技术在特厚煤层掘进面的应用研究

Application Research on Coal-body Solidifying Teachnology in Extra-thick Coal Seam Driving Face

在特厚煤层掘进过程中,常因顶煤控制不到位造成顶煤垮落,诱发瓦斯超限等事故。大平矿13采区的煤体固化技术试验结果表明,固化技术对掘进工作面煤体有一定的强化作用,实现了顶板控制工作由难到易的转化,为今后在突出危险区特厚煤层内掘进探出一条新路。

In the course of extra-thick coal seam digging, the downfall of the top coal often happens, which gives birth to the over-limitation of gas,etc. Coal-body solidifying teachnology was put into practice in No. 13 mining area in Daping coal mine,solidifying teachnology can play a strengthening role to the coal body in driving face,and the control of top board will go from hardness to easiness. It finds out a new way of digging in the extra-thick coal-body in the outburst-danger area in the future.