3609 ジオテキバッグ工法の性能確認試験および本線試験施工結果(地震・脱線逸脱防止(軌道と構造物),SS7:安全と防災,第18回交通・物流部門大会(TRANSLOG2009))

概要

論文の詳細を見る
In order to reduce deformation of ballasted tracks during large earthquakes, a new method to reinforce ballasted tracks with stacked geosynthetic bags that are filled with ballast was proposed. In this study, some performance tests of geosynthetic bags method are conducted. In triaxial test, geosynthetic bags filled with ballast revealed higher strength than ballast with no bag. In cut strength test, bags made of polyethylene and polyarylate that is one of high strength fibers revealed good performance. In ultraviolet ray resistance test, geosynthetic bags revealed less than 60% loss of pull strength at 5000h irradiation of super xenon weather meter. In construction test on commercial lines, it is confirmed that the new method has good workability.
2009-12-02