Updating the use of the CCBO cell in Japan: Overcoring case studies

International Journal of Rock Mechanics and Mining Sciences

Volumn 40, Issue 7-8, 2003, Pages 1189-1203

  Obara, Y ^a   Sugawara, K ^a  

^a KUMAMOTO UNIVERSITY   (Japan)

Author keywords

[No Author keywords available]

Indexed keywords

BOREHOLES; STRESS ANALYSIS; TUNNELS;

STRESS MEASUREMENTS;

ROCK MECHANICS;

EQUIPMENT; IN SITU STRESS; OVERCORING; ROCK MECHANICS; STRESS MEASUREMENT;

EID: 0142168373     PISSN: 13651609     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.ijrmms.2003.07.007     Document Type: Article

References (26)

1. Sugawara K. Obara Y. Draft ISRM suggested method for in situ stress measurement using the compact conical-ended borehole overcoring (CCBO) technique Int J Rock Mech Min Sci 36 1999 307-322
2. Obara Y, Jang HK, Sugawara K. Measurement of stress distribution around fault and consideration. Proceedings of the Second International Conference on Mechanics of Jointed and Faulted Rock, 1995. p. 495-500.
3. Obara Y, Sugawara K, Sakaguchi K. Rock stress measurements by the conical-ended borehole technique. Proceedings of the Eighth International Congress on Rock Mechanics, 1995. p. 145-8.
4. Obara Y, Sugawara K. Characteristics of Rock Stress Measured by Stress Relief Method in Japan. In-situ Characterization of Rock. Oxford: Oxford and IBH Publishing, 2002. p. 245-86.
5. Sakagichi K. Obara Y. Nakayama T. Sugawara K. Accuracy of rock stress measurement by means of conical-ended borehole technique J Min Mater Inst Japan 108 1992 455-460
6. Obara Y, Sugawara K. Improvement in accuracy of the conical-ended borehole technique. Proceedings of the International Symposium on Rock Stress, 1997. p. 77-82.
7. Obara Y. Imai K. Nakamura N. Sugawara K. Improvement of the conical-ended borehole technique for rock stress measurement with a high accuracy J Min Mater Inst Japan 113 1997 825-831
8. Sugawara K, Obara Y, Sakaguchi K. Hemispherical-ended borehole technique for rock stress measurement and its application. Proceedings of the Residual Stresses-Part III, vol. 1, 1991. p. 385-92.
9. Sugawara K. Obara Y. Measuring rock stress: case examples of rock engineering in Japan Hudson J.A. Comprehensive rock engineering vol. 3 1993 533-552 Pergamon Press Oxford
10. Kang S.S. Nakamura N. Obara Y. Sugawara K. Rock stress interpretations from Mt. Torigata (Japan) based on calcite strain gauge and differential strain curve analysis Eng Geol 58 2000 35-52
11. Obara Y. Nakamura N. Kang S.S. Kaneko K. Measurement of local stress and estimation of regional stress associated with stability assessment of an open pit mine Int J Rock Mech Min Sci 37 2000 1137-1223
12. Kang S.S. Jang B.A. Kang C.W. Obara Y. Kim J.M. Rock stress measurements and the state of stress at open-pit limestone mine in Japan Eng Geol 67 2002 201-217
13. Hirata A, Inaba T, Yamamoto M, Obara Y. Induced stress measurements in damaged region around a tunnel. Proceedings of the International Symposium on Rock Stress, 1997. p. 505-10.
14. Maejima T, Morioka H, Mori T, Aoki K. Application of the observational construction technique for large underground cavern excavation. Proceedings of the EUROCK 2001, 2001. p. 443-8.
15. Maejima T, Morioka H, Mori T, Aoki K. Evaluation of the loosened zone on excavation of the large underground rock cavern. Proceedings Modern Tunneling Science and Technology. 2001. p. 1033-8.
16. Kanagawa T. Hibino S. Ishida T. Hayashi M. Kitahara Y. In situ stress measurements in the Japanese island: overcoring results from a multi-element gauge used at 23 sites Int J Rock Mech Min Sci Geomech Abstr 23 1986 29-39
17. Sugawara K. Jang H.K. Hung X. Analysis of observed initial stress by the orthotropic spherical shell theory and considerations J Min Mater Inst Japan 111 1995 913-918
18. Sugawara K. Jang H.K. Evaluation of initial rock stress by the orthotropic spherical shell model Proc NARMS 1 1996 905-912
19. Sugawara K. Measuring rock stress, rock engineering in Japan. Proceedings of the International Symposium on Rock Stress, 1997. p. 15-24.
20. Geographical Survey Institute of Japan. Homepage address: http://gsi.go.jp/HIZUMI/hizumi.html
21. Faculty of Science, Tohoku University, Microearthquake activity in Tohoku district (May-October 1993), Report of the CCEP, vol. 51, 1994. p. 152-1170.
22. Ishiguro Y, Nishimura H, Nishino K, Sugawara K. Rock stress measurement for design of underground powerhouse and considerations. Proceedings of the International Symposium on Rock Stress, 1997. p. 491-8.
23. Ishiguro Y, Nishino K, Murakami A, Sugawara K, Kawamoto T. In-situ initial rock stress measurement and design of deep underground powerhouse cavern. Proceedings of the Ninth International Congress on Rock Mechanics, 1999. p. 1155-8.
24. Ishiguro Y, Obara Y, Sugawara K. Rock stress measurement using the CCBO technique. Proceedings of the Modern Tunneling Science and Technology, 2001. p. 297-302.
25. Sugawara K, Obara Y, Kaneko K, Koike K, Ohmi M, Aoi T. Visualization of three-dimensional structure of rocks using X-ray CT method. Proceedings of the First Asian Rock Mechanics Symposium, 1997. p. 769-74.
26. Ito F. Nakahara F. Kawano R. Kang S.S. Obara Y. Visualization of failure in a pull-out test of cable bolts using X-ray CT J Construct Building Mater 15 2001 263-270