EFFECT OF TYPE AND COMPOSITION OF GEOSYNTHETICS ON THE PERFORMANCE OF THE PROTECTIVE MATERIAL OF RESIN PIPES

Abstract

Polyethylene pipes for gas have rapidly become widespread due to the establishment of JIS in 1979, the demonstration of earthquake resistance in the 1995 Hyogo-ken Nanbu Earthquake, and the improvement of workability. At the same time, there is an increasing need to take appropriate protective measures to prevent accidents on buried pipes in other works. Protective materials using geosynthetics were developed in 2008 and are becoming widespread nationwide due to their flexibility and impact resistance. And the product was improved for the purpose of further improving the protection performance and workability. In this paper, the effects of differences in geosynthetic materials and configurations on protective performance were confirmed and the results were reported.