Biblioteca SEGEMAR

Vista normal Vista MARC Vista ISBD

Dixon, J. D.

Procedures for determining support of excavations in highly yielding ground / by J.D. Dixon, M.A. Mahtab, and T.W. Smelser. - Pittsburgh, Pa. (P.O. Box 18070, Pittsburgh 15236) U.S. Dept. of the Interior, Bureau of Mines, 1985. - 19 p. : ill. ; 28 cm. - Report of investigations ; 8990 . - Report of investigations (United States. Bureau of Mines) ; 8990. .

Bibliography: p. 18.

LCCN: 85600170

Subjects--Topical Terms:
Ground control (Mining)--Mathematical models.
Ground control (Mining)--Data processing.
Rock deformation--Mathematical models.
Rock deformation--Data processing.
Longwall mining--Mathematical models.
Longwall mining--Data processing.

LC Class. No.: TN23 TN288 / .U43 no. 8990

Dewey Class. No.: 622 s 622/.28

Gov. Doc. Class. No.: I 28.23:8990