摘要
应用悬臂梁相关理论分析伪俯斜工作面悬跨的顶板在工作面回采过程中顶板的受力破坏情况,推导出判定悬跨的顶板破坏判定准则,摸清该种情况下的顶板垮落情况,有利于采取针对性支护措施,减少了工作面顶板事故的发生,提高煤矿安全生产。
This paper analyzes the state in pressure of the roof of wide-angle tilt working face by theory, and deduces the criterion of determining the state of roof collapse, which is useful to understand mechanical breakage of the roof and improve the safety of coal mine production.
出处
《淮南职业技术学院学报》
2008年第3期6-8,共3页
Journal of Huainan Vocational Technical College
关键词
俯伪斜
压茬长度
端头效应
oblique face
stubble length
end effect
