Friedel, Michael J.
Rayleigh wave assessment of damage and integrity of mine structures / by Michael J. Friedel and Richard E. Thill. - Washington, DC (2401 E St. NW, Washington 20241-0001) : U.S. Dept. of the Interior, Bureau of Mines, [1991] - 12 p. : ill. ; 28 cm. - Report of investigations ; 9389 . - Report of investigations (United States. Bureau of Mines) ; 9389. .
Includes bibliographical references (p. 11-12).
91021618
Rock bursts.
Structural failures.
Rayleigh waves.
TN23 TN317 / .U43
622 s 622/.28
Rayleigh wave assessment of damage and integrity of mine structures / by Michael J. Friedel and Richard E. Thill. - Washington, DC (2401 E St. NW, Washington 20241-0001) : U.S. Dept. of the Interior, Bureau of Mines, [1991] - 12 p. : ill. ; 28 cm. - Report of investigations ; 9389 . - Report of investigations (United States. Bureau of Mines) ; 9389. .
Includes bibliographical references (p. 11-12).
91021618
Rock bursts.
Structural failures.
Rayleigh waves.
TN23 TN317 / .U43
622 s 622/.28