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本文基于FLAC-3D软件对某一边坡工程实例进行了数值模拟分析,从安全系数、边坡位移、锚杆轴力分析了不同位置单根锚杆破坏对该边坡的影响,从而为以后可靠度分析奠定一定的基础。根据数值模拟结果得出如下结论:越靠近边坡底部锚杆的破坏对该边坡安全系数的影响越大;最后一排锚杆的破坏对应的该点产生的坡体位移最大,不同位置锚杆的破坏,对相邻上下锚杆对应的土体位移影响较大;中间不同位置锚杆的破坏只对与该锚杆邻近的上下左右8根锚杆的轴力有主要影响,第一排锚杆和最后一排锚杆只对其邻近的5根锚杆的轴力影响较大,对其他锚杆的影响较小,可忽略不计。
Based on the FLAC-3D software, a numerical example is given to analyze a slope engineering example. Based on the safety factor, slope displacement and bolt axial force, the influence of single bolt failure at different positions on the slope is analyzed, Degree analysis to lay a certain foundation. According to the numerical simulation results, the following conclusions are drawn: the more the failure of the anchor near the bottom of the slope has a greater influence on the safety factor of the slope; the displacement of the slope generated by the last row of anchor failure at this point has the largest displacement; The failure of the bar has a great influence on the displacement of the soil adjacent to the upper and lower anchors. The failure of the anchors at different positions in the middle has a major influence on the axial forces of the eight anchors, The anchor bolts and the last row of anchor bolts only have a great influence on the axial forces of the five adjacent anchor bolts and have negligible impact on the other anchor bolts, which are negligible.