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

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

Evaluation of multitimbered wood crib supports

by Barczak, Thomas M.
Published: U.S. Dept. of the Interior, Bureau of Mines, 1991

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

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

Comparison of models to evaluate in situ shield loading

by Barczak, Thomas M.
Published: U.S. Dept. of the Interior, Bureau of Mines, 1990

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

Canopy and base load distribution on a longwall shield

by Barczak, Thomas M.
Published: U.S. Dept. of the Interior, Bureau of Mines, 1992

Shield machanics and resultant load vector studies

by Barczak, Thomas M.
Published: U.S. Dept. of the Interior, Bureau of Mines, 1986

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

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

Examination of design and operation practices for longwall shields

by Barczak, Thomas M.
Published: U.S. Dept. of the Interior, Bureau of Mines, 1992

Safety evaluations of longwall roof supports

by Barczak, Thomas M.
Published: U.S. Dept. of the Interior, Bureau of Mines, 1989

Critical-load studies of a shield support

by Barczak, Thomas M.
Published: U.S. Dept. of the Interior, Bureau of Mines, 1987

Rigid-body and elastic solutions to shield mechanics

by Barczak, Thomas M.
Published: U.S. Dept. of the Interior, Bureau of Mines, 1987

Effect of load rate on wood crib behavior

by Barczak, Thomas M.
Published: U.S. Dept. of the Interior, Bureau of Mines, 1988

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

Assessment of longwall roof behavior and support loading by linear elastic modeling of the support structure

by Barczak, Thomas M.
Published: U.S. Dept. of the Interior, Bureau of Mines, 1987

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

Three-dimensional shield mechanics

by Barczak, Thomas M.
Published: U.S. Dept. of the Interior, Bureau of Mines, 1987