METHOD AND DEVICE FOR TESTING OF BEARING CAPACITY USING THE ANNULAR SENSOR Russian patent published in 2017 - IPC E02D33/00 

FIELD: testing equipment.

SUBSTANCE: method of load application to the pile, in which the upper part is placed below the first pile section, wherein the upper part is fixed to the first pile section. The bottom part is located near the upper part, at that the separation area is created so, that the pressurized fluid medium injection into the separation area provides the force, tending to push the upper part and the bottom part from each other, and causes the movement of the upper part at the first pile section. Wherein at least the part of the upper part cross section and at least a part of the bottom part cross section is opened to allow the materials to pass from above the upper part to the lower from the bottom part, and if there is the separation of the upper and bottom parts, then the upper and the bottom part remain the relative lateral position within the compartment. The fluid medium is injected into the separation area, in order to attach the load to the pile, at that the upper part is made annular with U-shaped cross section, and the bottom part is made either annular shaped with the cross section shape, complementary to U-shaped cross-section of the upper part, or the annular shaped with U-shaped cross section, having the open end, at that the open end of the bottom part is located in the U-shaped upper part. When the pressurized fluid medium is injected into the separation area, the outer wall of the bottom part is moved to the upper part outer wall to create the sealing and the inner wall of the bottom part is moved to the upper part inner wall to create the sealing.

EFFECT: provision of the bearing capacity testing of the concrete pillars with their use after the testing, improvement of the testing accuracy.

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