摘要
针对缓倾斜极薄矿体壁式削壁充填法劳动强度大、生产效率低的问题,提出采取机械化生产。对适应机械化生产的大尺寸采场结构需进行稳定性分析,将崩落废石堆体假设成弹簧支撑件,把采场顶板简化为平面问题的固定端超静定悬臂梁结构,对顶板临界跨度计算。同时,该计算法在矿山得到实际应用,实现了机械化作业。
Some strategies for developing mechanized production were put forward in view of the problems of great labour intensity and low production efficiencies of waste-lifting stoping method for gently inclined and extremely-thin veins.For adapting to the large-size stope structure of mechanized production,stability of stopes should be analyzed.Therefore,critical span of strope roof was calculated under the condition that caved debris was assumed to spring supporting part and stope roof was simplified as statically indeterminate cantilever beam structure with fixed-end of planar issue.At the same time,the calculation method applied in mine realizes the mechanical operation.
出处
《岩土力学》
EI
CAS
CSCD
北大核心
2013年第S1期337-339,共3页
Rock and Soil Mechanics
关键词
壁式削壁充填
悬臂梁
稳定性分析
waste-lifting stoping method
cantilever beam
stability analysis
