摘要
应用数值模拟技术对尖山边坡开挖过程中的坡体变形问题进行了真实有效的分析,直观地再现了边坡应力和位移变化,并得到边坡的稳定安全系数。模拟结果表明:原始开裂边坡的模拟结果与现场实际情况基本吻合。随着上部边坡台阶形成的进度,边坡的稳定安全系数逐渐增大,然而2070水平以下继续采用"一面坡"开采方式情况下,最终边坡安全系数为1.16,理论上处于安全状态,但靠近极限平衡状态。通过本次模拟表明:该削坡卸载方案具有一定的可行性和合理性,对边坡开挖和治理具有一定的指导意义。
The slope stress and displacement variation has been reflected and the stability of slope safety factor has been got through the application of numerical simulation technology of slope excavation of slope.The result of simulation indicates that the original craze slope outcome met actual basically.Along with the progress of the upper slope formed steps of slope stability,safety coefficient increase gradually,while the ＂side slope＂ recovery method has been continued below the 2070 level,making the final slope safety factor of 1.16,which is a safe condition and approach to the limit equilibrium state.The simulation results show that the program has some feasibility and rationality,and has certain directive significance on management of slope excavation.
出处
《有色金属（矿山部分）》
2010年第6期42-45,65,共5页
NONFERROUS METALS(Mining Section）
基金
云南省科技厅节能减排创新工程项目(NO.2008KA001)
关键词
边坡稳定
有限差分法
数值模拟
安全系数
slope stability
finite difference method
numerical simulation
safety factor
