2011 Fiscal Year Final Research Report
STUDY ON EVALUATION OF GRAVEL DIAMETER USING CONTACT TIME WHEN GRAVEL COLLIDES WITH ELASTIC PLATE
| Project/Area Number |
21656123
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Single-year Grants |
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| Research Field |
Hydraulic engineering
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| Research Institution | Nihon University |
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Principal Investigator |
ODA Akira 日本大学, 生産工学部, 教授 (70270519)
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| Project Period (FY) |
2009 – 2011
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| Keywords | 接触時間 / 粒径 / 弾性波 / 粒度分布 / 衝突実験 / 衝突理論 |
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| Research Abstract |
We examined the relationship the contact time and gravel diameters by using an impact experiment between natural gravel, and a hard plastic board. The experimental results showed that the gravel diameter was relative to the contact time. In addition, the count of the number of pieces of gravel was accurate. We estimated the gravel size distribution of natural gavel by the contact time was measured and converted to the gravel diameter. The resulting gravel size distribution of the gravel showed in the experiments matched the sieve test. Application of this method in the field is possible.
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