TESTING DEVICE OF SOILS FOR TRIAXIAL COMPRESSION Russian patent published in 2015 - IPC G01N3/10 E02D1/00 

FIELD: construction.

SUBSTANCE: device includes an elastic cylindrical holder, a round stamp, a base, a stiff cylindrical housing and deformation and stress meters. The elastic holder has an anticorrosion coating on the inner surface, besides it is enclosed in the stiff cylindrical shell the inside diameter of which is equal to outside diameter of the holder. The shell is cut along the cylinder generatrix into axisymmetric parts attached to the outer surface of the holder and to radial plates of stiffeners, which have a possibility of radial movement in guide vertical slots made in the walls of the housing the inner radius of which exceeds outer radius of the shell by a value of maximum side deformation of a soil specimen at its being tested for compression. To exposed faces of the stiffeners horizontal stocks of dynamometers are rigidly attached, which are installed in channels of the housing walls with a possibility of radial movement. Housings of dynamometers are rigidly attached to outer surface of the housing of the device. Free ends of stocks of dynamometers have a thread and provided with nuts fixing tension of springs of dynamometers and are connected to deformation indicators fixed on posts installed on the base plate of the device.

EFFECT: improving accuracy of test results.

2 cl, 2 dwg