In view of the special properties of the gravel soil slope in the tailings pond area,this paper adopts the advanced numerical simulation method and combines the Mohr-Coulomb yield criteria to comprehensively evaluate the stability of the slope.By comparing different pile types(A-type pile and B-type pile)and pile position combinations,it is found that the change of pile position has a significant influence on the slope stability coefficient.In particular,the variation range of slope stability coefficient caused by the change of pile position of A-type pile is large,which indicates that A-type pile has high sensitivity in reinforcing gravel soil slope.Therefore,in practical engineering,priority should be given to the placement of A-type piles in key positions to maximize the stability of the slope.
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