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Predicting rock mass cavability in block caving mines /Mawdesley, Clare A. January 2002 (has links) (PDF)
Thesis (Ph. D.)--University of Queensland, 2002. / Includes bibliographical references.
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Re-assessment of three rock slopes in Hong Kong using block theoryLeung, Wai-ming, Eric, January 2004 (has links)
Thesis (M. Sc.)--University of Hong Kong, 2004. / Also available in print.
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Designing undercut and production level drifts of block caving mines /Wattimena, Ridho K. January 2003 (has links) (PDF)
Thesis (Ph. D.)--University of Queensland, 2003. / Includes bibliographical references.
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Development and validation of a design method coupling block theory and three-dimensional discontinuous deformation analysisSun, Ning, 孫宁 January 2005 (has links)
published_or_final_version / abstract / Civil Engineering / Doctoral / Doctor of Philosophy
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Re-assessment of three rock slopes in Hong Kong using block theoryLeung, Wai-ming, Eric, 梁偉明 January 2004 (has links)
published_or_final_version / Applied Geosciences / Master / Master of Science
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The effects of construction practices on the performance of rock socketed bored pilesCollingwood, Benjamin, January 2000 (has links)
Thesis (doctoral)--Monash University, 2000. / Contains two volumes.
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Use of block theory in tunnel stability analysis /Choi, Yam-ming, Kelvin. January 2006 (has links)
Thesis (M. Sc.)--University of Hong Kong, 2006.
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Development and validation of a design method coupling block theory and three-dimensional discontinuous deformation analysisSun, Ning, January 2005 (has links)
Thesis (Ph. D.)--University of Hong Kong, 2005. / Title proper from title frame. Also available in printed format.
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On the sources of simple modules in nilpotent blocksSalminen, Adam D. 24 August 2005 (has links)
No description available.
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Contribuição ao estudo de instabilidade em túneis não revestidos da estrada de ferro Vitória-Minas através da teoria dos blocos-chave e caracterização da rocha através de ensaios laboratoriais e de campo. / Contribution to study of rock tunnels at Vitória-Minas railroad through the key block theory, rock laboratory and field tests.Ito, William Hideki 03 June 2015 (has links)
No país existem inúmeras estruturas e obras civis que estão em operação a dezenas de anos e necessitam de monitoramento periódico devido a sua importância. Por este motivo, a dissertação apresenta um caso de um túnel antigo com problema de queda de bloco e visa instigar novas pesquisas e aumentar o conhecimento sobre o tema. Foram realizadas inspeções em campo em alguns túneis não revestidos da Estrada de Ferro Vitória-Minas (EFVM), bem como os ensaios em laboratório e in situ realizados nas amostras e no maciço rochoso para caracterizar o problema. Para o estudo foi escolhido o túnel Monte Seco Linha 1 e Linha 2 nos quais foram realizadas sondagens rotativas inclinadas e orientadas próximas ao eixo para investigação dos planos de descontinuidade. Os conceitos da Teoria dos Blocos-Chave foram aplicados às famílias de descontinuidades encontradas nos Túneis Monte Seco L1 e L2 para identificar os possíveis blocos instáveis formados pelas escavações. Para obtenção dos parâmetros geotécnicos de resistência e deformabilidade foram realizados ensaios de compressão uniaxial instrumentados com strain gages. A resistência a tração foi obtida através de Ensaio de Compressão Diametral (ECD). No ensaio de campo foi utilizado o Martelo de Schmidt para avaliação da rocha in situ. Através da análise dos dados foi possível distinguir setores cuja ocorrência de queda de blocos são maiores e a classe do maciço rochoso de acordo com a proposta de Bieniawski. / In the country there are numerous structures and civil works that are in operation for tens of years and require periodic monitoring due to its importance. For this reason, the dissertation presents a case of an old tunnel with block fall problem and aims to instigate new research and increase knowledge on the subject. Inspections were carried out in the field in some tunnels uncovered of the Railroad Vitória-Minas (EFVM) and testing in the laboratory and in situ carried out on the samples and the rock mass to characterize the problem. To study the tunnel Monte Seco Line 1 and Line 2 of which were held rotary polls inclined and oriented close to the axis to investigate the discontinuation plans was chosen. The concepts of the Key Block Theory were applied to the families of discontinuities found in Tunnels Monte Seco L1 and L2 to identify potential unstable blocks formed by the excavations. To obtain the geotechnical parameters of strength and deformability were performed uniaxial compression tests instrumented with strain gages. The tensile strength was obtained by diametral compression test (ECD). A field test was used to evaluate Schmidt hammer rock in situ. Through the analysis of the data was possible to distinguish sectors whose occurrence of falling blocks are larger and the rock mass class in accordance with the proposal of Bieniawski.
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