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  1. 1

    Practical considerations in longwall face and gate road support selection and utilization by Barczak, Thomas M.

    Published: U.S. Dept. of the Interior, Bureau of Mines, 1989
    Description: ii, 22 pages : illustrations ; 28 cm.
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    Practical considerations in longwall face and gate road support selection and utilization
  2. 2

    Advanced guidelines for performance testing of two-legged longwall shields by Barczak, Thomas M.

    Published: U.S. Dept. of the Interior, Bureau of Mines, 1989
    Description: ii, 149 pages : illustrations ; 28 cm.
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    Advanced guidelines for performance testing of two-legged longwall shields
  3. 3

    Shield mechanics and critical load studies for unsymmetric contact configurations by Barczak, Thomas M.

    Published: U.S. Dept. of the Interior, Bureau of Mines, 1990
    Description: iv, 81 pages : illustrations ; 28 cm.
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    Shield mechanics and critical load studies for unsymmetric contact configurations
  4. 4

    Comparison of models to evaluate in situ shield loading by Barczak, Thomas M.

    Published: U.S. Dept. of the Interior, Bureau of Mines, 1990
    Description: ii, 68 pages : illustrations ; 28 cm.
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    Comparison of models to evaluate in situ shield loading
  5. 5

    Evaluation of multitimbered wood crib supports by Barczak, Thomas M.

    Published: U.S. Dept. of the Interior, Bureau of Mines, 1991
    Description: 11 pages : illustrations ; 28 cm.
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    Evaluation of multitimbered wood crib supports
  6. 6

    A model of shield-strata interaction and its implications for active shield setting requirements by Barczak, Thomas M.

    Published: U.S. Dept. of the Interior, Bureau of Mines, 1991
    Description: 1 volume.
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    A model of shield-strata interaction and its implications for active shield setting requirements
  7. 7

    The history and future of longwall mining in the United States by Barczak, Thomas M.

    Published: U.S. Dept. of the Interior, Bureau of Mines, 1992
    Description: ii, 26 pages : illustrations ; 28 cm.
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    The history and future of longwall mining in the United States
  8. 8

    Canopy and base load distribution on a longwall shield by Barczak, Thomas M.

    Published: U.S. Dept. of the Interior, Bureau of Mines, 1992
    Description: 23 pages : illustrations ; 28 cm.
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    Canopy and base load distribution on a longwall shield
  9. 9

    Shield machanics and resultant load vector studies by Barczak, Thomas M.

    Published: U.S. Dept. of the Interior, Bureau of Mines, 1986
    Description: 43 pages : illustrations ; 28 cm.
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    Shield machanics and resultant load vector studies
  10. 10

    Horizontal and vertical load transferring mechanisms in longwall roof supports by Barczak, Thomas M.

    Published: U.S. Dept. of the Interior, Bureau of Mines, 1988
    Description: ii, 24 pages : illustrations ; 28 cm.
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    Horizontal and vertical load transferring mechanisms in longwall roof supports
  11. 11

    Three-dimensional shield mechanics by Barczak, Thomas M.

    Published: U.S. Dept. of the Interior, Bureau of Mines, 1987
    Description: 23 pages : illustrations ; 28 cm.
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    Three-dimensional shield mechanics
  12. 12

    The history and future of longwall mining in the United States by Barczak, Thomas M.

    Published: U.S. Dept. of the Interior, Bureau of Mines, 1992
    Description: ii, 26 pages : illustrations ; 28 cm.
    “…U.S. Dept. of the Interior, Bureau of Mines,…”
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    The history and future of longwall mining in the United States
  13. 13

    Engineering methods for the design and employment of wood cribs by Barczak, Thomas M.

    Published: U.S. Dept. of the Interior, Bureau of Mines, 1993
    Description: ii, 34 pages : illustrations ; 28 cm.
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    Engineering methods for the design and employment of wood cribs
  14. 14

    Examination of design and operation practices for longwall shields by Barczak, Thomas M.

    Published: U.S. Dept. of the Interior, Bureau of Mines, 1992
    Description: 14 pages : illustrations ; 28 cm.
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    Examination of design and operation practices for longwall shields
  15. 15

    Critical-load studies of a shield support by Barczak, Thomas M.

    Published: U.S. Dept. of the Interior, Bureau of Mines, 1987
    Description: 15 pages : illustrations ; 28 cm.
    “…U.S. Dept. of the Interior, Bureau of Mines,…”
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    Critical-load studies of a shield support
  16. 16

    Rigid-body and elastic solutions to shield mechanics by Barczak, Thomas M.

    Published: U.S. Dept. of the Interior, Bureau of Mines, 1987
    Description: 20 pages : illustrations ; 28 cm.
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    Rigid-body and elastic solutions to shield mechanics
  17. 17

    Effect of load rate on wood crib behavior by Barczak, Thomas M.

    Published: U.S. Dept. of the Interior, Bureau of Mines, 1988
    Description: 11 pages : illustrations ; 28 cm.
    “…U.S. Dept. of the Interior, Bureau of Mines,…”
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    Effect of load rate on wood crib behavior
  18. 18

    Factors affecting strength and stability of wood cribbing : height, configuration, and horizontal displacement by Barczak, Thomas M.

    Published: U.S. Dept. of the Interior, Bureau of Mines, 1988
    Description: ii, 23 pages : illustrations ; 28 cm.
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    Factors affecting strength and stability of wood cribbing : height, configuration, and horizontal displacement
  19. 19

    Safety evaluations of longwall roof supports by Barczak, Thomas M.

    Published: U.S. Dept. of the Interior, Bureau of Mines, 1989
    Description: 17 pages : illustrations ; 28 cm.
    “…U.S. Dept. of the Interior, Bureau of Mines,…”
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    Safety evaluations of longwall roof supports
  20. 20

    Two-leg longwall shield mechanics by Barczak, Thomas M.

    Published: U.S. Dept. of the Interior, Bureau of Mines, 1989
    Description: ii, 34 pages : illustrations ; 28 cm.
    “…U.S. Dept. of the Interior, Bureau of Mines,…”
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    Two-leg longwall shield mechanics

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