宜兴煤业巷道控制底鼓支护设计改进

Study on Support Design of Floor Heave Control at Roadway in Yixing Coal Industry Co.

文中在充分分析宜兴煤业地质特点、巷道破坏特征等前提下,结合数值分析对支护设计参数进行了调整,将原有的对称支护优化为针对性的非对称支护。现场监测结果表明,有效地控制了巷道泥岩底板的底鼓和巷道两帮的移近量,缩短巷道底板稳定的时间,同时改善了巷道的整体维护状况。

By analyzing the geological characteristic and roadway failure in Yixing Coal Industry Co.,the author proposes the change of original symmetrical support into asymmetrical support by adjusting the support design parameters,which can effectively control the mudstone floor heaves and the convergence between the two sides of laneway,shorten the period of floor stability and improve the overall maintenance situation of roadway.