Strain Distribution Around Underground Openings. Statistical Methods to Compile and Correlate Rock Properties and Preliminary Results

Released on by Wm R. Judd
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  • Strain Distribution Around Underground Openings. Statistical Methods to Compile and Correlate Rock Properties and Preliminary Results Book Detail

  • Author : Wm R. Judd
  • Release Date : 1969
  • Publisher :
  • Genre :
  • Pages : 114
  • ISBN 13 :
  • File Size : 71,71 MB
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Strain Distribution Around Underground Openings. Statistical Methods to Compile and Correlate Rock Properties and Preliminary Results by Wm R. Judd PDF Summary

Book Description: The collection and collation of physico-mechanical properties of rock is systematized to permit computer analysis of large quantities of such data. The main objectives of the computer codes presented here are to permit rapid retrieval of specific properties of specific rock types and to determine if two or more different rock properties can be correlated by statistical methods. Initial linear regression analyses were performed on pairs of properties, where one property was a measurement of the velocity of propagation of a longitudinal or transverse wave through a specimen or a rock system (in situ). These analyses indicate that when wave velocity is compared to impact toughness, static modulus of deformation, static modulus of rupture, unconfined compressive strength, or Young's modulus of elasticity (determined by static loading), each such pair of comparisons has a correlation coefficient greater than 0.70. It also was found that there was a 0.80 correlation coefficient between measurements of longitudinal wave velocities in laboratory specimens and in rock masses in the field. (Author).

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