DEVICE TO MEASURE SOIL DEFORMATIONS Russian patent published in 2014 - IPC E02D1/02 

FIELD: instrumentation.

SUBSTANCE: device to measure soil deformations comprises a hollow stand, a sensitive element, designed to accept shifting forces from soil displacement, and a recording device, comprising a measurement part, designed for measurement of the sensitive element position under action of shifting forces during soil displacement, and recording equipment connected with it and designed to convert variation of the sensitive element position under action of shifting forces to the value of soil displacement. At the same time the sensitive element is made in the form o a rod with a conical tip and is installed in the hollow stand, and is equipped with a fixator designed to hold the rod in the vertical position after submersion of the stand with the sensitive element in a well and installed on the rod as capable of its displacement along the rod and with the possibility of provision of free deviation of the rod from the initial position under action of shifting forces of the soil. The measurement part of the recording device represents a horizontal plate with measurement sensors installed on it for measurement of angles of rod inclination relative to the axis of the well, at the same time the horizontal plate of the recording device is fixed on the rod of the sensitive element above the fixator of the sensitive element.

EFFECT: increased sensitivity of device under single action of vibration dynamic load with preservation of high accuracy of measurement.

4 cl, 4 ex, 1 tbl, 1 dwg