A method of determining the components of the plumb line deviation (ξ, η) by comparing the results of geometric levelling with exceedances determined using the equipment of space navigation systems consumers is proposed. The possibility of defining components of plumb line deviation is theoretically substantiated. On a specific practical example, the values of ξ, η are determined with an accuracy of about 0.5-1.0".

The main question of using GPS/GLONASS receivers for satellite orbit determitations are given. The "a priori'' calculations of satellite orbit accuracy are done. The investigation results may be applied in designing perspective cosmic geodetic apparatus.

The technique of definition of geodetic azimuth for mean and large distances with application of satellite navigational systems is offered and the analysis of efficiency of this technique in comparison with conventional ways is carried out.

One of the main obstacles to the introduction of mechanized fasteners in weak host rocks is the lack of data on the relationship between the magnitude of rock pressure taken up by the fastener and the area of the fastener. The present article is devoted to the determination of soil resistance to indentation depending on the diameter and material of a round die (metal or wood).