Method of estimating ground pressure

Details Method of estimating ground pressure Method of estimating ground pressure

1977-06-30

1978-08-22

Ciarlante, Anthony V.

Measuring and testing

Ductility or brittleness

73587, G01N 306

Patent

active

041079817

ABSTRACT:
A method of estimating ground pressure in rock samples by making use of the Kaiser effect of acoustic emission. The method comprises the steps of applying load to a rock sample, increasing the load and counting the summation of the acoustic emissions produced from the interior of the rock sample. The ground pressure is determined from the magnitude and direction of hysteretic maximum stress in the ground where the rock sample was extracted.

REFERENCES:
patent: 3858439 (1975-01-01), Nakamura
patent: 3865201 (1975-02-01), Haden
patent: 3875381 (1975-04-01), Wingfield et al.
patent: 4006625 (1977-02-01), Davis

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