Home

About

Advanced Search

Browse by Discipline

Scientific Societies

E-print Alerts

Add E-prints

E-print Network
FAQHELPSITE MAPCONTACT US


  Advanced Search  

 
Journal of Mining Science, Vol. 43, No. 6, 2007 ROCK FAILURE
 

Summary: 585
Journal of Mining Science, Vol. 43, No. 6, 2007
ROCK FAILURE
INFLUENCE OF THE BLOCK-HIERARCHICAL STRUCTURE OF ROCKS
ON THE PECULIARITIES OF SEISMIC WAVE PROPAGATION
E. N. Sher, N. I. Aleksandrova, M. V. Ayzenberg-Stepanenko*,
and A. G. Chernikov UDC 539.375
The analysis is performed for the parameters of long pendulum-type waves in a one-dimensional periodic
system with an arbitrary hierarchical structure. A case study is carried out into the wave propagation
peculiarities in an impact-excited system of equal rigid blocks with parting layers differing in rigidity. The
pendulum wave velocity in the automodel block-hierarchical system is determined.
Impact, block medium, pendulum-type waves, parting layers, elasticity
Recently the geomechanics and geophysics researchers tend to describing deformation of a rock
mass as a block structure with a complex hierarchy. Under this conception, a rock mass is a structure of
nested blocks different in scales [1]. By analyzing dimensions of blocks, starting from scales of crystals
to fractions of rock mass and geoblocks of the earth's crust, it has been found that a ratio of sizes of
blocks at neighboring scale levels, NN lla /1+= , exhibits a certain stability, viz, 4.1a [2]. One more
critical, obtained experimentally statistic invariant of a block structure is equation ratio of the parting
width between blocks of the same scale to the typical size of a block, . It was determined that
2

  

Source: Alexandrov, Victor - Sobolev Institute of Mathematics, Russian Academy of Sciences, Novosibirsk

 

Collections: Mathematics