Stress-field around anchor-root of prestressed rock anchor;

Safety monitoring of rock anchor prestress during 1st stage construction of TGP s permanent lock;

In light of the design and construction of rock anchor in fastening anchorage cable system of Zhijinghe extra-large bridge,this paper illustrates the structure calculation of prestressed rock anchor,its construction techniques and quality control,as well as the treatment methods for geographical defects.

Temperature stress control measures for rock anchor beam in the underground powerhouse of the Three Gorges Project;

In the excavation of underground workshop′s rock anchor beam for the Bailianhe Hydropower Station,the zoning and stepping excavation to protect area was used according to the characteristics of the geological structure.

In excavation of underground workshop s rock anchor beam for Lashiwa Hydropower Station,the zoning and stepping excavation was used to protect area.

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.

Combined element model for anchored rock mass with consideration of interface properties;

The interface stress element model for anchored rock mass;

The present method for the analysis on stability of anchored rock mass is based on the conventional one,in which the anchoring bar is considered only as an anti-slide force,without consideration of the effect of anchoring bar on the stress distribution on the slide surface.