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通过离心模型试验,分别从坡顶位移、坡面水平位移及坡内位移的角度,分析在相同加固条件下坡体位移变形的特征,研究了坡体失效变形模式。试验研究表明:注浆钢管微型桩能有效地控制边坡土体的位移和坡体内裂缝;加固后的边坡滑动面深度将发生下移,从而阻止滑坡的形成;相同加固条件下的边坡含水量对加固效果起控制作用,即当含水量超过一定值后注浆钢管微型桩加固失效;注浆微型桩加固土质边坡失效时,整体上滑动面呈圆弧形,并从坡脚的平台中部剪出。
Through the centrifugal model test, the displacement deformation characteristics of the slope under the same reinforcement conditions are analyzed respectively from the perspective of displacement at the top of the slope, the horizontal displacement of the slope and the displacement within the slope, and the failure deformation mode of the slope is studied. Experimental results show that the grouting steel pipe micro-pile can effectively control the displacement of the slope soil and the cracks in the slope body; the depth of the sliding surface of the slope after the reinforcement will move downward to prevent the formation of the landslide; the slope under the same reinforcement condition The water content plays a controlling role on the reinforcement effect, that is, when the water content exceeds a certain value, the grouting steel pipe micro-pile reinforcement fails; when the micro-pile reinforcement soil slope fails, the overall sliding surface is arc-shaped, Cut out the middle of the platform.