Presentation Information
[VI-1025]Field observation on portal zone slope reinforced by vertical pre-reinforcement
*Tamami Nishihara1, Keisuke Tsuruta3, Kazuma Akita3, Shinji Yoshiara2 (1. Tobishima corporation , 2. Flight survey, 3. Nagoya branch)
Keywords:
mountain tunnel,vertical pre-reinforcement,slope,field observation,UAV,aerial photogrammetry
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