【摘要】 降雨是诱发边坡滑坡的重要因素之一，校核降雨工况下采场边坡的安全系数是否满足要求，是保证露天矿山安全生产的有效手段。以矿山边坡为工程背景，采用饱和-非饱和渗流理论、抗剪强度和饱和—非饱理论，运用Geo-studio软件计算降边坡在雨条件下的渗流场及稳定性，得出降雨对边坡的稳定性影响规律。研究结果表明，降雨的强度越大，相同时间点边坡的安全系数就越小，安全系数的降低速率也越快；降雨持续时间越长，边坡抗剪强度受降雨的影响也越大，边坡安全系数就越小。研究结果能够为矿山开采设计提供可靠依据，可有效预防边坡滑坡灾害，保证矿山安全生产。更多还原

【Abstract】 Rainfall is one of the important factors to induce slope landslide.Checking whether the Factor of safety of stope slope meets the requirements under rainfall condition is an effective means to ensure safety production of open-pit mines.Taking mine slope as engineering background,the saturated-unsaturated seepage theory and saturated-unsaturated shear strength theory are used to calculate the seepage field and stability of slope under the condition of rainfall by Geo-studio,the influence of rainfall on slope stability is analyzed.The results show that the more rainfall intensity,the smaller the slope Factor of safety at the same time point,the faster the Factor of safety rate decreases,and the longer the rainfall duration,the greater the influence of rainfall on the shear strength of the slope,the smaller the slope Factor of safety.The research results can provide reliable basis for mining design,effectively prevent slope landslide disasters and ensure mine safety in production.更多还原