Characterization of Deformation Evolution of Inverted Slope Based on Random Field Theory
Based on the improved numerical simulation method of particle flow,the spatial variability model of soil parameters of the inverted slope is established,and the influence of the spatial variability of soil parameters on the deformation evolution process of inverted slope is investigated.The characteristics of the deformation evolution of deterministic inverted slopes and that of the inverted slopes with the random field theory are also compared and analyzed.The conclusions show that:(a)the deformation evolution of the inverted slope is divided into three key nodes of the initial shear damage at the foot of the slope,the penetration of the shear face into the slope body,and the beginning of the tipping damage;(b)the spatial variability of soil parameters leads to an increase in the damage rate of the inverted slope,and accelerates the speed of the cracks at the foot of the slope and the shear face penetration of the inverted slope;and(c)the spatial variability of soil parameters makes the leading and trailing edge damage depth increase,while the effects on the normal angle between the shear damage surface and the nodal surface,and the trailing edge tension angle are smaller.
inverted slopesrandom field theoryspatial variabilitydeformation evolution characteristicsnumerical simulation
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