Development of the Intelligent Compact Conical-ended Borehole Overcoring method and 3D JAPAN STRESS MAP
| Project/Area Number |
23360399
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Earth system and resources enginnering
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| Research Institution | Tohoku University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
MATSUKI Koji 東北大学, 大学院・環境科学研究科, 名誉教授 (10108475)
KIZAKI Akihisa 秋田大学, 国際資源学部, 准教授 (60344686)
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| Project Period (FY) |
2011-04-01 – 2014-03-31
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥18,720,000 (Direct Cost: ¥14,400,000、Indirect Cost: ¥4,320,000)
Fiscal Year 2013: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2012: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2011: ¥10,790,000 (Direct Cost: ¥8,300,000、Indirect Cost: ¥2,490,000)
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| Keywords | 地圧測定 / 地震 / 円錐孔底ひずみ法 / 東北地方太平洋沖地震 / STRESS MAP / 東日本大震災 |
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| Research Abstract |
This study was conducted for purposes of development of high-precision in-situ rock stress measurement method and the information disclosure of the in-situ rock stress state. We carried out the in-situ stress measurement after the 2011 Tohoku-oki earthquake and performed the comparison with the results before the earthquake. The results are summarized as follows:
(1) The Cyclone Compact Data logger and the bonding device of the strain-cell unit for the Downward Compact Conical-ended Borehole Overcoring method were developed. (2) The in-situ stress measurements were performed three times after the 2011 Tohoku-oki earthquake. We obtained very important results to develop of 3D JAPAN STRESS MAP from the comparison with the results before the earthquake. The results of this study suggest that measurements at a fixed position, albeit at a shallow depth, can be effective for studying the relation between crustal stress and earthquakes.
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Report
(4 results)
Research Products
(25 results)
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[Book] 月間地球2014
Author(s)
小笠原宏, 加藤春實, Gerhard Hofmann, 矢部靖男, 坂口清敏
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