【摘要】 在地下开采和露天开采过程中,边坡稳定性问题一直是岩土工程中的一项难题。为了研究地下采空区对边坡稳定性影响规律,在分析采空区应力分布的基础上,基于强度折减理论和弹性塑性力学,利用FLAC^3D软件研究了地下采空区对边坡稳定性的影响。研究表明:当滑动面穿过采空区时,边坡内部的受力情况比较复杂,会严重影响到边坡的稳定;当采空区位于滑动面上部和下部时,对边坡的稳定性影响不大,但是从合理、经济、安全角度考虑,也应该避免此类开采方案。更多还原

【Abstract】 In the process of underground mining and open-pit mining,slope stability has always been a problem in geotechnical engineering.Therefore,based on the analysis of stress distribution in goafs,FLAC^3D software was used to study the influence of underground goafs on the slope stability according to the theory of strength reduction and elastic plasticity.The research showed that when the sliding surface passed through the goaf,the force inside the slope was complicated,which would seriously affect the slope stability.When the goaf was located on the upper and lower parts of the sliding surface,the influence on the slope stability was little.However,from a reasonable,economic and safe point of view,such mining plans should be avoided.更多还原