00499    a2200193   4500041000800000082001900008100002500027100001900052245003500071260003700106300001800143518001400161650002000175650001800195650002200213650001900235650002300254653002800277  aEng  a620.132bJ178f  aJeeger, John  Conrad  aCook, N. G. W.  aFundamentals of rock mechanics  aLondon bChapman and Hall c1979  a593p. illus.   a2068-4-13  aRock mechanics   aStrain waves   aStress deviation   aRock friction   aLinear elasticity   aStructural engineering