摘要
应用未确知测度理论建立露天矿山边坡失稳的评价模型,根据影响边坡稳定性成因的重要程度,选取地质构造、水文地质、岩体结构、坡高、坡面角、内摩擦角、爆破质点振动速度、地震烈度、年均降雨量三大类9项指标建立评价体系,构建直线型测度函数,利用客观赋值法确定各评价指标的权重,结合多指标综合测度向量和置信度识别准则进行边坡稳定等级判定。经工程应用表明,该评价模型对露天矿山边坡稳定性分析、矿山安全管理具有一定的参考价值。
The evaluation model for slope instability in open-pit mine is established with uncertainty measurement theory.According to the importance of the causes affecting slope stability,nine indexes of three categories,namely,geological structure,hydrogeology,rock mass structure,slope height,slope angle,angle of internal friction,vibration velocity of blasting particle,seismic intensity and average annual precipitation,are selected to set up an evaluation system.Linear measurement function is constructed,the weight of each evaluation index is defined by the objective assignment method,and the level of slope stability is determined by combining the multi-index comprehensive measurement vector and the confidence identification criterion.Engineering applications shows that this evaluation model has certain reference value for the stability analysis of open-pit mine slopes and mine safety management.
作者
杨飞
YANG Fei(Hunan Tiejun Engineering Construction Co.Ltd.,Changsha 410004,China)
出处
《矿业工程》
CAS
2024年第4期26-30,共5页
Mining Engineering
关键词
边坡稳定性
未确知测度理论
熵值法
置信度
slope stability
uncertainty measurement theory
entropy method
confidence level
