FIELD TEST ON THE RATIONAL SUPPORT SYSTEM FOR LARGE-SCALE TUNNEL

Abstract

The purpose of this study is to obtain the fundamental data for rational support system of the large-scale tunnel. Especially, the field test with new materials was carried out for obtaining the support effect of each member. This paper presents the measurement data and knowledge from the field test in order to contribute the future execution for large-scale tunnel. As the test results, the system with the high strength rock bolt and high strength fiber reinforced shotcrete could sufficiently support with excavating velocity of 2m/day.