Study on Soil Arching Formation and Evolution Mechanism of Pile-slope Structure System
In order to study the formation and evolution mechanism of soil arching effect of deposit layer slope with h-type anti-slide pile,the typical deposit layer slope was taken as research obj ect.A three-di-mensional numerical calculation model of deposit layer slope with h-type anti-slide pile structure was constructed by using finite element software ABAQUS.The formation process and evolution law of soil arching effect between h-type anti-slide piles under the action of landslide thrust were analyzed.Mean-while,the influence of pile diameter ratio and soil properties on the formation and function of soil arching effect between piles of h-type anti-slide pile was investigated.The results show that h-type anti-slide pile produces double-layer soil arching effect under the action of landslide thrust,and the formation of doub-le-layer soil arching is not synchronous.Compared with the single-layer soil arching of ordinary anti-slide pile,the soil arching is formed at the front and rear of h-type anti-slide pile,which can effectively increase the retaining effect of h-type anti-slide pile.Moreover,pile diameter ratio and soil properties have signifi-cant influence on the function of double-layer soil arching effect.When the pile diameter ratio is between 3 and 6,the soil arching was formed at the front and rear of h-type anti-slide pile,which can give full play to the role of retaining.In addition,increasing the internal friction angle and cohesive force is also condu-cive to the play of the double-layer soil arching effect.
万方数据
维普
