Thesis

The application of two-and-three-dimensional stress analysis techniques to the design of rock structures, with particular reference to underground pillars

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Awarding institution
  • University of Strathclyde
Date of award
  • 1974
Thesis identifier
  • T117(1974)
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Department, School or Faculty
Abstract
  • An attempt was made in the course of this investigation, to introduce some modern laboratory and 'in-situ' techniques of Experimental Stress Analysis to mining configurations, and in particular, to the design of underground pillars. Chapters I and II are both introductory ones. In the former, the basic problems associated with the design of structures in rock are briefly outlined whereas in the latter, a detailed and up to date discussion is given, on the behaviour of underground pillars and their design considerations. In Chapters III and IV two modern and sophisticated photoelastic techniques are described, with particular reference to their application to mining. The Scattered Light technique of three-dimensional photo-elasticity, and the special polariscope on which this method can be executed, are described in Chapter III. In Chapter IV, an Image De-rotation technique has been specially adapted, to enable gravity loading simulation in 'real time'. The application of the Scattered Light technique to the field of Rock Mechanics, is given in Chapter V, where two cases of underground pillars are examined photo-elastically, in three dimensions. In order to examine the underground behaviour of pillars as well as establishing the degree of reliance of the photoelastic results, two 'in-situ' investigations were carried out, and are described in detail in Chapter VI. Finally, the important problem of developing improved methods of 'in-situ' measurements was not ignored. The design and laboratory testing of two instruments capable of triaxial measurements at a point 'in-situ', from a single borehole, is discussed in Chapter VII.
Resource Type
DOI
EThOS ID
  • uk.bl.ethos.461483
Date Created
  • 1974
Former identifier
  • 238592

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