Taking a highway argillaceous siltstone landslide treatment project as an example,combined with regional geological data and engineering geological exploration,this paper analyzes the characteristics and causes of landslide.Geo-slope software Morgenstern-Price method is used to calculate the residual sliding force of the slope while the rock mass parameters are inversely calculated.According to the sliding force of the slope,a circular anti-slide pile with a diameter of 2 m is adopted to reinforce the main body of the slope,and the long weep hole is set up for slope drainage,so as to ensure the safety and stability of the slope,which can be used as a reference for similar slope protection treatment.
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