Research status and development trend analysis of geotechnical pre-stressed anchoring technology

Abstract

By reviewing the development history of geotechnical prestressed anchoring at home and abroad, the latest progress of prestressed anchoring technology in related basic theories, standard design, prestressing problems research and other aspects is summarized, and the anchoring effect and load of prestressed anchoring technology, force transmission mechanism, stress corrosion and protection, anchoring materials and construction tools, pre-stress loss mechanism, cementing strength of grouting materials, influence of group anchoring effect, and current status and problems of insufficient detection level, are systematically analyzed. At the same time, aiming at the current stage problems of geotechnical pre-stress, various theories and technical tests of stress anchoring are far from satisfying the phenomenon of actual engineering. The theoretical methods based on modern informatization and big data are proposed, and the future development direction is analyzed and prospected accordingly. It is hoped that they can provide reference value for the development of this field.

Keywords

• prestressed anchorage
• stress corrosion
• stress loss
• group anchor effect
• development direction