On the basis of reliability analysis,the influence of the single soil nail failure on slop protection structure with soil nailing was studied and a reasonable calculation and analysis model was established.

An experimental study on the performance of FRP soil nails;

Construction of soil nail and anchorage cable in compound support engineering;

Development and application of composite soil nailing walls in Shenzhen;

Supporting and protecting technique of compound earth nailing wall in the pit excavated for building foundation is compounded into one by the steel tube pile,the earth nail and the anchor pole of prestressing force in advance,which can effectively shorten construction time limit for a project.