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Because of the huge number of segments to be produced and because of the multiplying effect of any measure carried out. and progressive failure. segments can also be modified considering an integrated invert track in the railway tunnels in order to optimize the construction logistics. 4.
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Integrated ground support design in very weak ground at Cayeli Mine M.Yumlu & W.F.Bawden 71 86 106 131 163 178 2 Rock mass characterisation Three-dimensional rock mass characterisation for the design of excavations and estimation of ground support requirements 205 P.M.Cepuritis Geotechnical block modelling at BHP Billiton Cannington Mine
P. in case of fractured rocks.1) to major cavity wall movements both in brittle (rock burst.1 Introduction Underground excavations consist of progressive removal—by different methods. which determines the mechanical characteristics of the matrix.