Presentation Information

[VI-1295]Visualization and evaluation of tunnel excavation surfacemirror bolts improvement range using fluorescent materials.

*Yuya Okido1, SUGURU OOKAWARA2, NAOKI IKUSHIMA2, HIDEAKI MIKAMI2, YOSHITOMO TATSUMI2 (1. West Nippon Expressway Company Limited, 2. TODA Corporation)

Keywords:

Geological defect,Auxiliary method,Fluorescent agent