摘要
人类工程活动会使斜坡的自然平衡状态遭到一定的破坏,为了减轻灾害带来的损失,分析其稳定性显得尤为重要。以长兴县某村民屋后斜坡为研究对象,考虑不同降雨强度的影响,设定2种工况(天然工况、饱和工况),运用FLAC^(3D)程序对其进行模拟及数值计算,结果表明:(1)天然工况下斜坡稳定系数为1.464,饱和工况下斜坡稳定系数为1.122。(2)饱和工况下总位移值和水平位移最大值均明显增大,出现在坡体前部地形较陡的区域,该边坡存在滑塌失稳的可能。
Human engineering activities can cause certain damage to the natural equilibrium state of slopes.In order to reduce the losses caused by disasters,analyzing their stability is particularly important.Takes the slope behind a villager's house in Changxing County as the research object,considers the influence of different rainfall intensities,sets two operating conditions(natural operating condition and saturated operating condition),and uses FLAC^(3D) program to simulate and numerically calculate it.The results show that:(1)The slope stability coefficient under natural operating condition is 1.464,and the slope stability coefficient under saturated operating condition is 1.122.(2)Under saturated conditions,both the total displacement value and the maximum horizontal displacement value significantly increase,appearing in the steep terrain area at the front of the slope,and there is a possibility of collapse and instability of the slope.
作者
杨敬卓
吴博
安昱丞
罗干
Yang Jingzhuo;Wu Bo;An Yucheng;Luo Gan(North China University of Water Resources and Electric Power,Zhengzhou,China)
出处
《科学技术创新》
2023年第13期73-77,共5页
Scientific and Technological Innovation
