Clarify the mechanism and dynamics characteristics of hung-up tree that is one of the causes for fetal accident
| Project/Area Number |
23658123
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Forest science
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| Research Institution | Tokyo University of Agriculture and Technology |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
IWAOKA Masahiro 東京農工大学, 大学院・農学研究院, 講師 (40213269)
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| Project Period (FY) |
2011 – 2012
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| Project Status |
Completed (Fiscal Year 2012)
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| Budget Amount *help |
¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2012: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2011: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
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| Keywords | かかり木 / けん引力 / 放置 / 処理法 / かかり木処理 / 安全性 / 判定表 / 発生メカニズム / 力学的特性 / 危険性 / 処理方法 |
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| Research Abstract |
Following points are clarified: i) The traction force for removing hung-up trees were passed through the crowns of remaining trees in a stand. ii) The traction for removing hung-up trees by skidding at its butt end was measured in a steep stands. iii) The risk of left hung -up tree. iv) The safe angle of hung-up trees for removing them trees by cutting the buttlog. These results will contribute to the establishment of safe method for removing the hung-uptrees.
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Report
(3 results)
Research Products
(7 results)
