ABSTRACT
To study the stability of a highly weathered mudstone high slope of an expressway in Yunnan, taking the typical section of K57 + 655 as the analysis object, the stability coefficient and potential sliding surface of the slope are obtained using the finite element software ANSYS and shear strength reduction method. Although the stability factor is > 1, considering the particularity of mudstone, the slope still needs to be properly protected. Anchor bolts and prestressed anchor cables are used for slope reinforcement, and the protective measures include shotcrete, six-edge hollow bricks covered with soil and grass planting, and three-dimensional mesh grass planting. The practice shows that the slope has been in a stable state, and the slope protection measures are feasible.
