COMPREHENSIVE METHOD FOR MONITORING STRESS-STRAIN STATE OF STRUCTURAL ELEMENTS OF GEOTECHNOLOGY OBJECTS DURING THEIR LONG-TERM OPERATION Russian patent published in 2023 - IPC G01B21/32 G01N3/40 G01N1/04 

FIELD: geomechanical monitoring.

SUBSTANCE: invention is related to geomechanical monitoring of the stress-strain state (SSS) of structural elements of geotechnology objects. A comprehensive method is proposed for controlling the SSS of structural elements of geotechnological objects during their long-term operation, by means of instrumental and computational determination of stresses and elastic deformation characteristics of the studied array using methods of its partial and complete unloading by creating an annular unloading gap, which is used to determine the elastic deformations of full unloading using benchmarks and partial unloading from the side of the studied array using digital measuring instruments with strain gauges and automatic digital transmission of measurement results data in the form of a digital signal in real time from the measurement site to the recording station for collecting, storing, processing measurement results and interpreting the data obtained in a PC with general and specialized software (SW). In each cycle of instrumental measurements, the values of elastic deformation characteristics and effective stresses of the studied array are determined for each controlled area by the sum of the initial stresses and increments of stresses, which are compared with the previous cycle of instrumental measurements, thereby ensuring the control of changes in the stress-strain state of structural elements of geotechnology objects during their long-term operation. The safety factor of structural elements of geotechnology objects is determined by comparing the strength characteristics of the studied material or rock, determined by the results of laboratory tests of drilled core samples, with the magnitude of the actual stresses in the structural elements of geotechnology objects at subsequent stages of their operation.

EFFECT: increasing the accuracy and reliability of the instrumental assessment of the SSS of structural elements of geotechnology objects.

1 cl, 7 dwg