Static Load Evolution Law of Soft Structural Surface Degradation Anchored Slope
To explore the mechanical response characteristics of anchored slopes with the penetrating soft structural surface under localized static loads at the slope top,this paper systematically investigated the deformation pattern and stress-strain characteristics of anchored slopes by numerical simulation means based on the validation model test.The results showed that with the increase of the additional load,the variation of the characteristic point deformation of frame beams in the numerical simulation and the test was consistent,the failure of the slope was in the form of a bulging belly,so the actual protection should focus on the middle and upper slope and the management of middle part of the slope should be strengthened.Under static loads,the soft structural surface changed the slope displacement and stress distribution,which formed the shear-tensile failure inside the structural surface,along which a potential slide zone was formed and ended up with a wedge-shaped sliding zone.The response of the middle and upper rows of anchor cables was obvious,and the soft structural surface alienated the axial force distribution mechanism.The progressive design should be considered during the construction of the anchoring project to enhance the strength and prestress magnitude of the middle and upper rows of anchor cables.The study results can provide certain references for mountainous highway protection.