METHOD FOR DETERMINING QUALITY OF COMPACTION AND BEARING CAPACITY OF SOIL Russian patent published in 2023 - IPC G01N3/42 E02D1/02 

FIELD: soil engineering.

SUBSTANCE: method for continuous monitoring of quality of compaction of soil materials. Carry out preliminary and main stamp express tests of the surveyed area with an identifier, photographing the identifier prints, measuring the size of the identifier print in the photograph, calculating the mechanical characteristics of the soil based on the size of the identifier print in the photograph. A hemispherical rigid stamp placed on the rear smooth roller of a light roller is used as an identifier. Photographing is performed after removing the load and moving the identifier, vertically relative to the plane of the imprint in the ground. Preliminary tests include simultaneous paired calibration tests of a part of the surveyed area with an identifier - a hemispherical rigid stamp placed on the rear smooth roller of a light roller, and a rigid stamp with a round flat sole, a comparative analysis of the dimensions of the diameters of the imprints of the hemispherical rigid stamp identifier obtained during paired calibration tests in the photograph with vertical settlement of a rigid stamp with a round flat sole and identifying the correlation between them, determining the parameters of the bearing capacity of the soil of a part of the surveyed area based on the vertical settlement of a rigid stamp with a round flat sole. The main tests include stamp tests with an identifier of the remaining section of the surveyed area, determination of the bearing capacity of the soil of the surveyed area, based on the identified correlation, on the basis of which the calculated parameters of the bearing capacity of the soil are approximately considered to correspond to the diameter of the imprint of a hemispherical rigid stamp.

EFFECT: increased speed of determining soil strength parameters and ensuring the possibility of using the method in field construction conditions.

8 cl, 1 tbl, 3 dwg