At present,anti-floating anchorage technology has been widely used in engineering construction.However,the research on the mechanical mechanism of the interaction between the enlarged head anti-floating anchor and different graded soils is not sufficient.Therefore,this paper studies the interaction between the enlarged head anti-floating anchor and the soil gradation.Firstly,the grading curve is constructed by Rosin-Rammler function,and the curve shape parameter m value is used to characterize the non-uniformity of soil particles,and then the pull-out numerical simulation is carried out.The results show that during the pull-out process,the larger the m value is,the more uneven the soil particles are,and the pull-out bearing capacity decreases with the increase of m value.At the same time,the velocity transmission area changes from a cone-like to a rectangular-like distribution,and the contact force chain changes from a coarse-branched mesh to a fine-branched mesh.
anti-floating anchorRosin-Rammler functionmechanical propertydiscrete element method
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