FIELD: mining engineering.
SUBSTANCE: device comprises a frame of sidewalls, beams and stand connected to a closed circuit, a beam installed in the center of the frame, and loading mechanisms. The loading mechanisms are made in the form of vertical and horizontal hydraulic jacks with dynamometers installed leaning against the beam mounted in the frame center and the frame stand, respectively, it is also provided with a plate which is installed horizontally on the surface of the array of crushed rocks and connected by strings with instrumentation for registering vertical deformation of the array, a carriage mounted on the plate configured for horizontal movement, inside which a compression ring with a stamp is fixed. A second horizontal plate, a second carriage on ball bearings, a hydraulic jack and a dynamometer are arranged in series on the stamp of the compression ring and connected to the central beam of the frame, wherein the stamp is connected to instrumentation for registration of its movements.
EFFECT: increased efficiency and reliability for determination of Poisson factors and transverse deformation of fragments of crushed rock array and compressibility of rock in the array.
2 dwg
