METHOD FOR DETERMINING ACTUAL DENSITY OF SOILS USING 3D MODELLING OF HOLE Russian patent published in 2023 - IPC E02D1/04 

FIELD: construction.

SUBSTANCE: determination of the volume of the selected sample is carried out by 3D scanning the survey area before and after sampling, further constructing and superimposing 3D models of the survey site before and after sampling, selecting the sample area using the method of cutting off excess zones and calculating using software complex volume of the sample taken. Sampling is carried out according to a method that does not allow additional compaction of the walls of the hole during the sampling process, as well as collapse of the soil of the walls to the bottom of the hole, by layer-by-layer sampling of material from the hole, in which the soil is cut strictly from the boundaries of the hole to its centre without any pressure on the walls of the hole, which taper towards the base of the hole at an angle that ensures the stability of the walls from collapse. The sample is taken in a pre-weighed container, which allows for transportation of the sample without loss of its mass and moisture content, and weighing the sample, together with the shipping container, will avoid loss of sample weight.

EFFECT: significant increase in accuracy and reliability of the survey results obtained, as well as significant reduction in labour intensity of the survey at the site.

1 cl, 2 dwg