The most characteristic feature of frozen rock mining is its high energy intensity and cost. Ice cemented loose rocks at low subzero temperatures become so strong that their excavation without preliminary preparation turns out to be ineffective. ...

It is well known that there is no single measurement method for determining the modulus and phase of the complex transmission coefficient of quadrupoles in the range of high and ultrahigh frequencies. For definition of these quantities in the specified range of frequencies it is necessary to use a number of measuring devices working on different principles and providing not equal accuracy of measurements. This reduces the value of measurement results and the possibility of their use, for example, to determine the dielectric constants of materials.

The behavior of an antenna in a borehole in terms of its input impedance is of interest in connection with the investigation of the possibility of extending boreholes in frozen rocks to large diameters using microwave energy.

The electrode system and the heated frozen rock form a so-called working capacitor, whose characteristics are electrical capacitance and tgδ (loss angle). Knowing these characteristics, it is possible to determine all elements of the high-frequency circuit that forms the energy source of the technological process...

Creation of cement pipes directly in the wellbore is an actual problem. Cement casing can act as a production string when drilling for water, as well as cover certain complicated zones associated with collapse of well walls or absorption of flushing fluid.