摘要
应用离散元数值模拟软件对碎裂结构顶板在无支护、锚杆支护、锚杆锚索联合支护时顶板围岩稳定性进行研究,重点分析顶板冒落形态,同时,进一步对钢带、钢筋梁的支护作用进了力学分析,表明锚杆锚索联合支护是碎裂顶板适宜的支护形式,钢带、钢筋梁等护表材料对于顶板稳定起着重要作用。
The discrete element numerical simulation was applied to the study on the stability of the roof and surrounding rock when no support, bolt support, bolt and anchor combined support were applied to the broken roof. The paper emphasized the analysis on the roof falling form. The paper had a further mechanics analysis on the steel stripe and steel bar beam. The results showed that the bolt and anchor combined support would be the suitable support mode for the broken roof. The steel stripe, and steel bar beam and others support material could play an important role to the stability of the roof.
出处
《煤炭科学技术》
CAS
北大核心
2009年第6期24-26,共3页
Coal Science and Technology
关键词
锚杆支护
碎裂结构
离散元
bolt support
broken structure
discrete element
