The horizontal stiffness coefficient values of rock anchor under different conditions are obtained through using numerical method to simulate the pullout test of the fully-grouted rock anchor.

In the structure design of the people s Stadium of Dalian City, the rock anchor foundation is adopted to solve the problem about permanent anti-floating stability in the big size underground construction according to the local conditions.

By discussing on the differeces of design for rock anchorage bar between in China and abroad,it is concluded that the different designing results from the dissimilarity of detecting means.

Mechanical analysis of systematic bolts on rock mass in high side slope at intake of Xiangjiaba Hydropower Station;

Based on the numerical model analysis,the improvement of elastic modulus and Poisson s ratio is discussed;and the different influence-degrees of systematic bolts on different rock masses are analysed .

in this Paper, through the similar model tests in the laboratory, the improvement of compressive strength, elastic modulus, C and values is discussed, and the anisotropy is preliminarily studied for therock mass reinforced with systematic bolts in the high slope of Three Gorges flight lock.