書誌事項
- タイトル別名
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- In-Situ Rock Stress Measurement using Improved Downward Compact Conical-Ended Borehole Overcoring Technique
- シタムキ エンスイコウテイヒズミ ホウ ニ ヨル ゲン イチ オウリョク ソクテイ
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In-situ stress measurement by means of the Downward Compact Conical-ended Borehole Overcoring (DCCBO) technique, which one of the overcoring method, was carried out at Kamaishi mine to aim at practical use of this technique. Prior to in-situ stress measurement, measuring apparatus (conical bit, strain cell insertion tool and data logging equipment built-in tilt-azimuth meter) for HQ-size borehole were developed by improving apparatus for PQ-size borehole. Then, the measurement method based on the determination of strain coefficients depending on the estimation of the elastic properties of the adhesive under in-situ measured temperature was proposed.<BR>Performing in-situ tests, we verified that improved measuring apparatus for HQ-size borehole works well in a water-filled vertical borehole. Moreover, it was confirmed that the proposed measurement method could estimate the in-situ stresses relatively consistent with those by other measurement method near this test site. It was concluded that in-situ stresses measured by the proposed measurement method have sufficient reliability.
収録刊行物
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- 資源と素材
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資源と素材 126 (7), 418-424, 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
- 1390001205274267904
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- NII論文ID
- 10026876041
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- NII書誌ID
- AA12188381
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- ISSN
- 18840450
- 18816118
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- NDL書誌ID
- 10775835
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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