Application Research on Geo-Filament Bolt Reinforced Earthen Site

After hundreds years or even a thousand years of vicissitudes, the earthen sites are destroyed seriously. Protecting these cultural relics has great historical significance and practical value. The protections of the earthen sites include two aspects which are chemistry and physics protection at present. Compared with chemic protection, the structure stability is more important. So the stability reinforcement used bolt is researched for many scholar. Combined the reinforced project of Gaochang earthen site in xinjiang province, and directed toward the new type bolt of geo-filament, the article introduced the construction technology of the geo-filament bolt; in addition, the numerical comparative tests in typical soil medium were implemented and compared the bearing capacity of bolt from the different affections, and the working mechanism for bolt pulled-out test was revealed quantitatively by the overall course simulating analysis. According the test results, the surface state affects the anchor force obviously; the length of bolt is feasible from 0.8-2.0m. the geo-filament bolt is proved to be an excellent material which is used in the walls reinforcement of earthen sites, and it has many typical characters which are advanced technology, novelty techniques and construction facility. Because of that, the new research will play an important part in guiding us to protect the earthen sites.