Influence of anchorage body position and shape on the effect of slope reinforcement

摘要

Loose soil or earth-rock deposit slope is one of the difficulties of slope treatment. While grouting treatment is such an effective means. In order to reveal the effect of slope reinforcement by grouting anchor, strength reduction Finite Element Method(FEM) is adopted to calculate the deformation of single anchorage body and slope stability factor. Several calculation conditions are considered, such as setting the anchorage body at a different position vertically or horizontally, and setting the anchorage body in different direction at a fixed position. Analysis shows that putting the anchorage body into the slope makes the stability of the slope increase in some degrees, in which setting the anchorage body vertically is more effective than setting it horizontally. The most ideal installation position is at about 1/3 height of the slope. It is also found that the anchorage angle impacts the effect of slope reinforcement. Influence of the layout of a single anchorage body on the effect slope reinforcement provides a reference for optimal design of grouting technique.