GROUND BENCH Russian patent published in 2017 - IPC G01C15/04 G01C7/02 

FIELD: measuring equipment.

SUBSTANCE: ground bench consists of a metal bench pipe 1, which within the seasonally thawed layer is made in the form of a tapered truncated cone, which allows a significant reduction in the tangential force of bulging. In the lower part of the pipe anchor 2 is attached, and in the upper part there is a mobile mark 3. A change in the height of the mark 3 is made by the screw thread 4 with fixing the lock nut 5. To rotate the mark along the screw thread, the hexagonal cross-section 6 under the spanner is provided in its upper part. To measure the change in the bench height to the movable mark, a metal ruler 7 with millimetric divisions is attached. The change in the mark height is measured relative to the fixed index 8 welded to the bench pipe 1.

EFFECT: reducing the costs for the bench manufacture and its re-laying, shortening the time for performing measurements and increasing the accuracy of measurements, when observing the altitude of the points.

1 dwg