| Project/Area Number |
16K14521
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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 |
Earth system and resources engineering
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| Research Institution | The University of Tokyo |
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Principal Investigator |
Hashiba Kimihiro 東京大学, 大学院工学系研究科(工学部), 准教授 (60456142)
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| Co-Investigator(Kenkyū-buntansha) |
福井 勝則 東京大学, 大学院工学系研究科(工学部), 教授 (70251361)
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| Project Period (FY) |
2016-04-01 – 2018-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2017: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2016: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
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| Keywords | トップハンマードリリング / 打撃穿孔 / さく岩機 / ボタンビット / 資源開発工学 / 地盤工学 / シミュレーション工学 |
|---|
| Outline of Final Research Achievements |
In this study, the relation between force and penetration of a bit during top hammer drilling was modeled, and then a high-precision simulator for top hammer drilling was constructed by combining the proposed model and the models for a drill body, piston, rods, and rod joints. The effects of various drilling conditions on the drilling process were clarified using this simulator. In addition, a laboratory test method for understanding the effects of shape and location of button tips on the bit was examined, which is significant for the directional control of top hammer drilling.
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