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  • Articles  (3)
  • longwall mining  (3)
  • Springer  (3)
  • American Meteorological Society
  • American Physical Society (APS)
  • Blackwell Publishing Ltd
  • De Gruyter
  • International Union of Crystallography
  • Oxford University Press
  • Society of Exploration Geophysicists
  • Springer Nature
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  • 1984  (3)
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  • 1937
  • Geosciences  (3)
  • Philosophy
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  • Articles  (3)
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  • Springer  (3)
  • American Meteorological Society
  • American Physical Society (APS)
  • Blackwell Publishing Ltd
  • De Gruyter
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  • 2000-2004
  • 1995-1999
  • 1980-1984  (3)
  • 1955-1959
  • 1935-1939
    • +
Year
  • 1984  (3)
  • 1959
  • 1955
  • 1937
  • 1999  (1)
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  • Geosciences  (3)
  • Philosophy
  • 1
    Electronic Resource
    Electronic Resource
    Use of rock classification to estimate roof caving span in oblong workings (1984)
    Springer
    Geotechnical and geological engineering 2 (1984), S. 133-140 
    Details
    ISSN: 1573-1529
    Keywords: Rock classification ; longwall mining ; strata control ; mine openings
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences
    Notes: Summary Indian coal measures have widely varying caving characteristics. The maximum roof span of a longwall or depillaring panel at the time of nether roof collapse is shown to have a direct relation withRQD from a study of 12 case histories. A similar relation between maximum unsupported span of openings and rock mass quality as defined by theQ-system was also demonstrated. A simple nomogram is presented to predict the face advance required to cause roof collapse when theRQD or rock mass quality is known.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00880878
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Astrata control system and its application in West German coal mining (1984)
    Springer
    Geotechnical and geological engineering 2 (1984), S. 119-132 
    Details
    ISSN: 1573-1529
    Keywords: Coal mining ; strata control ; rock pressure ; mine planning ; longwall mining
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences
    Notes: Summary Astrata control system has been developed to improve mine planning and design in deep coal mines in West Germany, where redistributed stresses from longwall workings in weak strata create difficult support problems. The system involves theoretical, laboratory and underground observations and studies of strata and support performance. Examples of the system covered in detail include planning the position and support of a cross-cut; improving a face layout; planning a gateroad; planning strata bolting and planning longwall face layouts.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00880877
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  • 3
    Electronic Resource
    Electronic Resource
    Analysis of subsidence caused by underground mining (1984)
    Springer
    Geotechnical and geological engineering 2 (1984), S. 271-290 
    Details
    ISSN: 1573-1529
    Keywords: Coal mining ; longwall mining ; subsidence ; rock deformation ; finite element analysis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences
    Notes: Summary Some aspects of subsidence caused by longwall coal mining are analysed using the finite element method. Results of the analysis are compared with a true mine panel, where measurements on subsidence were available. Rock deformations in the overburden were modelled by using an elasto-plastic constitutive model. The study indicates that the shape of the subsidence profile can be predicted reasonably well by using nonlinear finite element analysis.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00881117
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