斜面 (4)

3:10 PM - 3:20 PM JST(6:10 AM - 6:20 AM UTC)

[III-108] Study on deterioration and damage characteristics of rockfall prevention facilities and their countermeasures

*Kazunari Ikeda¹, Kota Morisaki¹, Takashi Hasegawa² (1. Nippon Expressway Research Institute Co,Ltd, 2. Japan Conservation Enjineers & Co.,Ltd)

Keywords:

rockfall,degradation,maintenance,expressway

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