COMPLEX METHOD FOR DETERMINING STRESS-STRAIN STATE OF GEOTECHNOLOGY OBJECTS Russian patent published in 2016 - IPC G01B11/16 

FIELD: construction.

SUBSTANCE: invention relates to underground, open, and construction geotechnologies, and can be applied as deformation method for complex determination of parameters of stressed condition and elastic characteristics of rock massif, support of mine workings, underground railways, and tunnels, as well as structures of bridges and hydraulic works. Claimed complex method for determining stress-strain state of geotechnology objects consists in measurement of strain between walls of discharge slot, characterized by that for purpose of investigation of stress-strain state of objects complex method is developed for determining its parameters, based on use of annular discharge slot for measuring deformations of partial discharge at side of massif, and deformations of unloading in drilled core, into central hole thereof pression meter is then set, step load in core is set, and induced deformations are measured; wherein deformations of three types: partial unloading of massif, full unloading, and induced in core are measured as per installation of reference lines, composing tensor of flat deformations.

EFFECT: technical result consists in improvement of efficiency of analysis, higher information value of method for unloading due to its simultaneous fixation in specific plane at certain lines, which are components of flat deformation tensor, as well as lower labor consumption of experiment due to application of modern independent drilling equipment, as well as measuring devices and equipment.

1 cl, 1 dwg