Application of the automatic drilling grouting anchor bar in side slope supportprotection;

This paper expounds the geological structure in the tunnel of a certain engineering, analyzes the reasons why the self-advancing hollow grouting anchor construction is selected in the hydrous rockmass, and introduces in detail the scheme analysis, design, construction parameter, problems, and treatment measures, etc.

For construction of surge tank of Sangping hydropower station, the stepping and self-drilling hollow grout injection anchor rods are used in fractured rock at high slope and shallow landslide, resulting in good consolidation and anchorage in the surrounding rock.

Application of steel pipes and automatic anchor pole in the tunnel with sandwich;

According to the environment and the concrete geological conditions,the comprehensive reinforcement method of prestressed anchor cable,self-drilling anchor bolt,steel-net and shotcrete is adopted for the slope using the engineering analogism and experiential method.

According to the landslide body characteristics,the processes of self-drilling anchor bolt,consolidation grouting and so on were adopted.