METHOD FOR MONITORING DEVELOPMENT OF SWELLING ACTIONS CAUSED BY CONSTRUCTION OF INCLINED UNDERGROUND MINES, PASSED WITH FREEZING OF SOILS Russian patent published in 2020 - IPC E21C39/00 

FIELD: mining.

SUBSTANCE: invention relates to mining industry and can be used for determination of vertical puffiness and deformations of the earth's surface as a result of construction of underground inclined mine workings, passed by the method of freezing soils, having direct access to the earth's surface. Method includes laying of main shaped lines in main sections of mold and additional shaped lines located in other directions within boundaries of displacement mold, fixed through equal intervals with working and reference references, located on ends of shaped lines outside shifting zone, systematic determination of altitude position of working reference points relative to reference before and during shifts of earth surface, obtaining shifts, calculation of slopes and curvature respectively as first and second derivative of shifts. Prior to the beginning of the mine-work operations, the point of expected maximum sedimentation on the earth surface is determined in the main section of the displacement mold, from which the main longitudinal line and the main transverse line are laid, and additional shaped lines perpendicular to the axis of the inclined stroke, at the end of each shaped line setting the reference points, which are outside the deformation area of action, further leveling according to the reference lines, which are installed in the zone of influence of deformations, then for each series of observations, which correspond to a certain position of performance of mine-work operations relative to shaped lines, distribution of bundles is obtained, which are caused by the active freezing step, then performing a desktop treatment, calculating values of slopes and curvature respectively as first and second derivatives of puffs, which reflect state of earth surface before shifts and state of the same section at a certain stage of shifting process during active and passive stage of freezing, including stage of termination of shifting process.

EFFECT: invention can be used to determine vertical shifts (grooves) and deformations of the earth's surface as a result of construction of underground inclined mine workings, covered by the method of freezing soils having direct access to the earth's surface.

1 cl, 4 dwg