書誌事項
- タイトル別名
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- Force-Penetration Curves with a Button Bit in the Percussive Drilling
- ショウゲキカンニュウシケン ニ オケル ボタンビット ノ カンニュウトクセイ
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A force-penetration relationship is considered to be closely related to the deformation and fracture mechanism at the bit-rock interface. In this study, a testing machine in which a piston, a rod or a bit can be easily changed was developed for laboratory impact-penetration test simulating the in-situ percussive drilling. A series of percussive drilling tests with a button bit against Inada granite were carried out to examine and discuss the drilling performace. Stress waves were measured at two locations 1.91 m apart along the rod, and then force-penetration curve of the button bit was calculated by measured strain/stress wave. Main results are summarized as follows:<BR>1) Delay of traveling time at bit can be expressed by a slit bit model.<BR>2) Variation in the slope of force-penetration curves in laboratory tests was very similar to that in in-situ percussive drilling.<BR>3) In spite of large scatter in the slope of force-penetration curves, the elastic deformations of rock surface were almost constant.
収録刊行物
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- 資源と素材
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資源と素材 126 (8/9), 512-518, 2010
一般社団法人 資源・素材学会
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詳細情報 詳細情報について
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- CRID
- 1390282680250954624
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- NII論文ID
- 10026493243
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- NII書誌ID
- AA12188381
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- ISSN
- 18840450
- 18816118
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- NDL書誌ID
- 10808407
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可