Výsledky vyhledávání - "R. J. Fowell"

The third chevron-notched rock fracture specimen – The cracked chevron-notched Brazilian disc

Autor: R. J. Fowell, J. F. Chen

Publikováno v: Rock Mechanics Contributions and Challenges: Proceedings of the 31st U.S. Symposium ISBN: 9781003078944

The testing commission of the ISRM has recommended two chevron-notched rock fracture specimens (Ouchterlony, et al, 1987) - the chevron-notched short rod specimen (Figure 1) and chevron-notched bend specimen (Figure 2), for mode 1 rock fracture tough

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6de36966e93a258374de121505e9793b
https://doi.org/10.1201/9781003078944-45

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Softening effect of coal on the design of yield pillars

Autor: R. J. Fowell, H. Yavuz

Modeling studies using FLAC were performed to investigate the effect of the softening parameters on the stress transfer over the abutment and to investigate yield and stress state of a yield pillar. Both back analysis of large scale coal tests with t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::37c28dccf12f64bb424379d02193a841
https://doi.org/10.1201/9781003077527-46

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Elektronická kniha

Tunnelling ’94 : Papers Presented at the Seventh International Symposium, ‘Tunnelling’94’

Autor: Vidar Aarvold, I. L. J. Chudleigh, N. S. Webb, G. A. Featherstone, Manfred Bandmann, H. Ramisch, Uwe Beckmann, B. J. Cole, H. J. Lees, Walter Dietz, D. F. Fawcett, P. J. Chapman, D. A. Barratt, M. P. O’Reilly, John Temporal, Jon Baston-Pitt, F. J. Fredriksen, Roald Aabøe, G. J. Hasle, D. A. Hobson, D. C. Gilchrist, Sandor Jancsecz, Walter Steiner, J. P. Farrow, P. M. Claye, R. B. Warren, M. A. Ginary, R. Matthews, H. Kruizenga, C. R. Weeks, T. R. Winterton, Y. Leblais, L. Leblond, Yannis Malios, J. Y. Peron, P. Marcheselli, P. Catling, J. Scholey, A. D. Murray, Bruno Marrai, P. G. Davies, Guilherme Tibau, Erik Gutenwik, Maurício Santana, Pierre Jean Pellegri, R. J. Fowell, G. Richardson, M. J. Gollick, J. G. Beatty, R. J. Ganey, J. E. Killingsworth, L. J. Arthur, A. W. Darby, B. Rafoneke, Graham Daws, Dan MacDonald, Nicola Innaurato, Renato Mancini, Enrico Rondena, Attilio Zaninetti, A. W. P. Coutts, H. R. Davies, R. S. Curtis, A. P. Finch, R. P. Lovat, A. P. Deane, K. T. Burgess, M. C. Knights, M. A. Oswell, I. W. Farmer, B. W. L. Mak, Daniel Morfeldt, C

It is now more than twenty years since a proposal was first mooted to hold an international tunnelling symposium in Britain. At the time of the first symposium, held in London in 1976, the Channel Tunnel pro ject had just been shelved. Last weekend

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An Update on the Fracture Toughness Testing Methods Related to the Cracked Chevron-notched Brazilian Disk (CCNBD) Specimen

Autor: R. J. Fowell, C. Xu, P. A. Dowd

Publikováno v: Pageoph Topical Volumes ISBN: 9783764377113

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f67deaff3416e88e129ce009c5168aae
https://doi.org/10.1007/3-7643-7712-7_8

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Tunnelling’ 94

Autor: L. J. Arthur, A. W. Darby, B. Rafoneke, Graham Daws, Dan MacDonald, Nicola Innaurato, Renato Mancini, Enrico Rondena, Attilio Zaninetti, A. W. P. Coutts, H. R. Davies, R. S. Curtis, A. P. Finch, R. P. Lovat, A. P. Deane, K. T. Burgess, M. C. Knights, M. A. Oswell, I. W. Farmer, B. W. L. Mak, Daniel Morfeldt, C. J. H. Martin, G. Pakes, Sigurdur Finnsson, H. A. Janzon, C. Laughton, P. P. Nelson, Y. Abd Al-Jalil, R. Remington, H. P. Caspe, A. Y. Kim, L. J. Bergen, J. R. Araujo, Richard Harpf, Klaus Axhausen, J. E. Hellings, R. J. Mair, D. I. Harris, J. P. Love, D. Blakey, C. Kettle, B. M. New, K. H. Bowers, Vidar Aarvold, I. L. J. Chudleigh, N. S. Webb, G. A. Featherstone, Manfred Bandmann, H. Ramisch, Uwe Beckmann, B. J. Cole, H. J. Lees, Walter Dietz, D. F. Fawcett, P. J. Chapman, D. A. Barratt, M. P. O’Reilly, John Temporal, Jon Baston-Pitt, F. J. Fredriksen, Roald Aabøe, G. J. Hasle, D. A. Hobson, D. C. Gilchrist, Sandor Jancsecz, Walter Steiner, J. P. Farrow, P. M. Claye, R. B. Warren, M. A. Ginary, R. Matthews, H. Kruizenga, C. R. Weeks, T. R. Winterton, Y. Leblais, L. Leblond, Yannis Malios, J. Y. Peron, P. Marcheselli, P. Catling, J. Scholey, A. D. Murray, Bruno Marrai, P. G. Davies, Guilherme Tibau, Erik Gutenwik, Maurício Santana, Pierre Jean Pellegri, R. J. Fowell, G. Richardson, M. J. Gollick, J. G. Beatty, R. J. Ganey, J. E. Killingsworth

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ca75c48822b90d3c83f60ab827a055c0
https://doi.org/10.1007/978-1-4615-2646-9

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Rock cutting with roadheaders

Autor: M. J. Gollick, G. Richardson, R. J. Fowell

Publikováno v: Tunnelling’ 94 ISBN: 9781461361367

The paper describes with practical case studies how some of the important factors influencing the excavation performance of boom tunnelling machines equipped with drag tools may be predicted. The pitfalls of basing performance predictions on compress

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::cca635889652d69a4e69a5da47797423
https://doi.org/10.1007/978-1-4615-2646-9_42

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Water Jet Assisted Coal Cutting

Autor: R. J. Fowell, J. A. Martin

Publikováno v: Jet Cutting Technology ISBN: 9789401051859

Tests have been conducted on a linear instrumented cutting rig to explore the use of high pressure water jet assistance to drag tools excavating coal. The primary objective was to investigate the possible reduction of fine coal in the product and thu

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::75c651fc8ec857731a04c68f79acdd19
https://doi.org/10.1007/978-94-011-2678-6_10

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