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为研究三峡库区岸坡在不同状态下的稳定性,选取三峡库区秭归地区某碎石土岸坡做了快剪试验,获得了该碎石土在天然状态和降雨状态下的抗剪强度指标,并运用SLOPE/W软件模拟边坡,采用Bishop方法计算了两种状态下的安全系数,发现天然状态下边坡稳定,降雨状态下边坡不稳定,进而采用抗滑桩模拟治理不稳定边坡的稳定性,并给出了抗滑桩的设计尺寸。
In order to study the stability of bank slope under different conditions in the Three Gorges Reservoir Area, a quick shear test was conducted on a bank of gravel soil in the Zigui area of the Three Gorges Reservoir. The shear strength of the gravel soil under natural and rainfall conditions was obtained. Index and SLOPE / W software were used to simulate the slope. The Bishop method was used to calculate the safety factor of the two states. It was found that the slope is stable under natural conditions and the slope is unstable under rainfall. Then, the anti-slide pile is used to simulate the unstable slope The stability of anti-slide pile is given.