Design method of anchor pier type active protective net on fractured rock slopes

Abstract

The shallow surface rock mass of the high and steep rock slopes in the existing highway (railway) projects, especially with severe weathering slope rock mass, is mostly cataclastic. After the traditional SNS active protective net is adopted to reinforce the slope, the rock slope has been locally unstable or subject to overall instability. Therefore, it is necessary to improve the structure and the corresponding design method for the reinforcement and protection of cataclastic rock slope. A new type of combination structure of anchor-pier active protection net as well as the stress calculation and design method is put forward, which can effectively prevent the destruction of cataclastic rock slope surface and ensure the overall stability of the slope. It can be seen from the engineering application that the combined protective structure has good reinforcing effect on the cataclastic rock slope, and it could be applied in the engineering construction.

Keywords

• fractured rock slope
• anchorage pier
• active protection net
• design method