Monitoring earth/rock movements

Details Monitoring earth/rock movements Monitoring earth/rock movements

1980-05-01

1981-09-29

Myracle, Jerry W.

Measuring and testing

Specimen stress or strain, or testing by stress or strain...

Earth stresses

G01N 3324

Patent

active

042915813

ABSTRACT:
An improved method and apparatus for monitoring from time to time earth/soil/rock movements. The invention comprises a simplified apparatus for use in a vertically driven hole into an underground earth/strata formation for such purposes; and features use of vertically aligned but spaced apart casing sections in a single bore hole. The casing sections are individually bonded to adjacent strata, whereby movements thereof relative to one another may be monitored by means of a single, repeatedly usable torpedo suspending and subterranean level reading line.

REFERENCES:
patent: 2292938 (1942-08-01), Hennessy
patent: 3323216 (1967-06-01), Ublacker
patent: 3380167 (1968-04-01), Abel, Jr. et al.
patent: 3381750 (1968-05-01), Brown
patent: 3483745 (1969-12-01), Ublacker
patent: 4044470 (1977-08-01), Dufrene
Soiltest Inc., Evanston, Illinois; General Catalog, vol. 2, pp. 124 and 125.
Earth Manual, U.S. Dept. of Interior Bureau of Reclamation, First Edition-2nd Printing, Denver, Colorado 1968, pp. 672-689.

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