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抗滑桩的桩身截面积比较大,所以它的抗滑能力较强,因此是用于加固边坡的有利措施。抗滑桩的抗滑机理在于桩身、滑床、滑体三者相互协调作用。受到滑坡推力时,抗滑桩周围的土体产生不均匀的位移,土颗粒之间挤压、楔紧,部分土体生成土拱。本文基于离散元软件PFC5.0,模拟在不同桩间距下,抗滑桩与地层相互作用的细观特性,对基于土拱效应的桩间距的计算公式的确定将有有益的参考。
Anti-slide pile pile cross-sectional area is relatively large, so it is more skid resistant, it is used to reinforce the slope of the favorable measures. The anti-slide pile anti-slip mechanism lies in the pile body, slide, slide the three coordinated role. Affected by the landslide thrust, the soil around the anti-slide pile has uneven displacement. The soil particles are squeezed and wedged, and some soil arches are generated. Based on the discrete element software PFC5.0, this paper simulates the mesoscopic characteristics of the interaction between anti-slide piles and the formation under different pile spacing, and will be useful reference for determining the calculation formula of pile spacing based on soil arching effect.