摘要
露井协调开采顺序关系到两种开采方式之间相互制约和影响的程度,结合平朔矿区露井协采工程实践,设计先井工后露天开采和先露天后井工开采两套方案,并分别对两套方案进行数值模拟,对比分析了不同露井协调开采顺序下露采边坡变形破坏特征。根据分析结果,从维护边坡平整和稳定的角度,建议在露井协采生产实践中,对于计划进行内排的矿山且内排进度超前于井采扰动的范围时,可优先考虑采用先露天后井工的开采模式,除此之外,建议采用先井工后露天的开采模式且露天开采进度滞后于井采活跃期。
The coordinated mining sequence relationship between the surface mine and the underground mine is related to the degree of the mutual restriction and influences between the two mining methods. In combination with the engineering practices on the coordinated mining between the surface mine and underground mine in Pingshuo Mining Area, a numerical simulation was conducted on the two designed plants, including the underground mining first and then the surface mining and the surface mining first and then underground mining. A comparison analysis was conducted on the deformation and failure features of the slopes in the surface mining. According to the analysis results, from a view to keep the flat and stable of the slope, the mining model of underground mining lagging behind open - pit mining was suggested in coordinated open- pit with underground mining practice in condition that inner dump was planned to build and the progress of inner dump is ahead of the range of influence caused by underground mining. If not, the mining model of open - pit mining lagging behind underground mining was suggested.
出处
《煤炭工程》
北大核心
2013年第10期7-10,共4页
Coal Engineering
基金
国家自然科学基金(51004065)
煤炭科学研究总院基础研究基金(2012JC13)
关键词
露井协采
开采顺序
边坡变形破坏
井采扰动
coordinated mining between surface mine and underground mine
mining sequence
deformation and failure of slope
mining disturbance of underground mine
