摘要
针对夹沟铝矿地下采空区的分布,建立了FLAC模型,分别研究了3种跨度采空区在9种不同位置时,地下老采空区的露天矿边坡在开挖过程中的应力场、位移的变化情况,并计算了相应的安全系数,从而得出了地下老采空区对边坡稳定性的影响规律,最后对夹沟铝矿边坡失稳进行了分析。
According to the distribution of mined-out areas in Jia-gou Aluminum Mine, FLAC models are set up, to respectively study the variation of stress fields and displacements during mining strip mine slope while three kinds of span mined-out areas in 9 different positions, the corresponding safety coefficient are also obtained from calculation. From that, the influence of old mined-out areas on the stability of slop has been obtained. Reasons for slop slip in Jia-gou Aluminum Mine have been analyzed.
出处
《矿冶工程》
CAS
CSCD
北大核心
2008年第2期20-23,共4页
Mining and Metallurgical Engineering
关键词
采空区
FLAC
应力场
位移
安全系数
数值模拟
mined-out areas
FLAC
tress field
displacement
safety coefficient
numerical simulation
