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[VII-70] A Study on the Critical Height of Trees against the Failure of Root Protection Sheets.

〇Toyoji Yonezawa¹, Fumihide Sato², Koitch Sando³, Kenichi Kojima⁴ (1.Japan Railway Construction, Transport and Technology Agency Tokyo Regional Bureau, 2.Japan Railway Construction, Transport and Technology Agency Tokyo Regional Bureau, 3.Japan Railway Construction, Transport and Technology Agency Tokyo Regional Bureau, 4.Railway Technical Research Institute)

Keywords:Soil generated during construction, Root-resistant sheet, windthrow, Tree height