【摘要】 以蒙自现代林业产业园1号道路边坡工程为例,利用FLAC3D数值模拟软件,模拟边坡整个开挖过程的稳定性特征和地震动力响应特征,并计算安全系数,在边坡模型关键部位布置监测点,计算出地震动强度指标PGA,数值模拟分析表明:随着逐步开挖的进行,边坡稳定性安全系数急剧下降;开挖结束以后,在未采取加固处理的状态下极易发生沿坡面的滑移破坏;开挖边坡坡顶处地震动响应明显,应采取必要防护措施。更多还原

【Abstract】 Example from No. 1 Road of Mengzi Modern Forestry Industrial Park,to simulate the stability characteristics of the excavation process and the seismic response characteristics using FLAC3 Dand export the coefficient of safety. Monitored on the key position of slope model,calculated the earthquake intensity index PGA,the numerical simulation analysis suggested that: with the gradual excavation,slope stability decreased significantly,after excavation,under the condition of none-reinforcement was easy to slip along the slope failure,the top of the hill slope seismic response was obvious,the necessary protective measures should be taken.更多还原