深井沿空顺槽不同预应力下的主控支护

Main Control Support under Different Prestress of Deep Well Crossheading along Goaf

针对某矿工作面顺槽的地质情况,从分析沿空顺槽围岩变形破坏特征入手,根据空顺槽围岩变形特征、预应力让压锚杆的支护作用机理、主控支护技术原理的研究,利用有限元计算分析不同的预应力锚杆支护情况,分析顶板和两帮的变形特征。

In view of the geological conditions of the working face crossheading in a mine,from the analysis of the deformation and failure characteristics of surrounding rock in crossheadings along goal, according to the deformation characteristics of the surrounding rock, the supporting mechanism, the principle of the main controlling, supporting technology and the different pre stress bolt support are analyzed by the finite element method, the deformation characteristics of the roof and the two sides are analyzed.