摘要
利用弹性地基梁模型 ,导出了采场老顶的挠曲线方程 ,并分析计算了老顶的超前断裂现象及顶板来压的有关参数 。
By the use of the model of winkler beam on elastic foundation, this paper deduced the generalized subsiding velosity for the main roof in the underground mining workplace, and then analyzed and calculated the advanced fracture phenomenon of the roof and its moving parameters when the mining pressure on the main roof increased. On the base of the analysis and caculation,it fruther settled the grids'distance of props in the mining workplace of the deep ore of Xiangxi Gold Mine when it used the props to control the roof. The conclusion supplied an available reference to the practice of controlling the main roof in the deep underground mining workplace of the same mining conditions as Xiangxi Gold Mine when it used the mining method without the safe ore pillar.
出处
《西部探矿工程》
CAS
2001年第5期1-4,共4页
West-China Exploration Engineering
关键词
无矿柱采矿法
弹性地基梁
矿山压力
支护网度
金矿床
顶板支护
mining method without the ore pillar beam on elastic foundation mining pressure grids'distance of props
