METHOD FOR DETERMINING CUTTING RESISTANCE OF SNOW AND ICE FORMATIONS AND FROZEN SOILS Russian patent published in 2023 - IPC G01L1/22 G01N3/58 

FIELD: measurement technology.

SUBSTANCE: invention relates to measurement technology, in particular to determining the cutting resistance of snow-ice formations and frozen soils by a cutting device, such as a disk cutter, and can be used to determine the optimal installation parameters of the cutting device and the cutting process. The method includes preparing samples from the natural environment, which are kept in a freezer until measurements are started to stabilize their temperature. Measurements of the horizontal, vertical and lateral components of cutting resistance are carried out in a freezer with the ability to maintain a constant temperature and provide a wide temperature range to approach possible natural conditions, in accordance with the plan of factorial research, using two stands. One of them is measuring in a static position, equipped with a shearing device and strain gauges that fix the components of the cutting resistance of samples with a leveled surface, and the second stand ensures the movement of the sample rigidly fixed on it towards the shearing device for their interaction and the implementation of the cutting process. The registration and processing of the cutting resistance components is carried out using software, and the optimal parameters of the cutting process are determined from the graphical dependencies built on the basis of the obtained data. As a cutting device, a disk cutting device is used, containing at least one disk, measurements of the horizontal, vertical and lateral components of the cutting resistance of the samples are carried out with a change in the cutting speed, cutting pitch, rear angle of the disk of the cutting device and the geometric parameters of the disk.

EFFECT: increasing the information content of the method for determining the cutting resistance of snow-ice formations and frozen soils due to a larger amount of data and determining the optimal geometric parameters of the cutting device disk, installation parameters and cutting process parameters that provide minimum values of cutting resistance components.

8 cl, 9 dwg