Critical span calculation of stope roof with waste-lifting stoping method

ZHAI Hui-chao; YAN Man-zhi

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Critical span calculation of stope roof with waste-lifting stoping method

更新时间：2026-06-25

- Critical span calculation of stope roof with waste-lifting stoping method
- Vol. 34, Issue S1, (2013)
- 作者机构：
  
  河北钢铁集团矿业有限公司田兴铁矿,河北,唐山,063000
- 作者简介：
- 基金信息：
- DOI：
  CLC： TD32
- Online First：09 June 2014，
  
  Published：2013
- 稿件说明：
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ZHAI Hui-chao, YAN Man-zhi. Critical span calculation of stope roof with waste-lifting stoping method[J]. 2013, 34(S1).
DOI：

ZHAI Hui-chao, YAN Man-zhi. Critical span calculation of stope roof with waste-lifting stoping method[J]. 2013, 34(S1). DOI：

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。

Abstract

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.

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