Surveying work is not subject to the Law «On ensuring the uniformity of measurements in the Russian Federation» in terms of required calibration of measuring instruments. It is necessary to practice in the state surveyors guide of the Law on the application of calibration, as a means of metrological support surveying works.
Account method of laser-scanning survey of hydraulic engineering tunnels of 2,7 km is stated in the general extent. The visual way of inspection of the tunnels, carried out in parallel with their leveling is resulted. The way of a deformation estimation of a condition of tunnels by the geometrical analysis of 3D-models received according to laser-scanning survey is considered.
Now questions of the metrological control in маркшейдерских works have the uncertain status. The law in force about maintenance is uniform-stva measurements does not include in control sphere маркшейдерские work. Predlaga-etsja to return to practice of independent performance калибровочных works on the certificated ranges.
The traditional photoplanerometric survey of the main excavation sections using digital photo and video cameras acquires a new meaning. The article considers the method of remote imaging of vertical technical boreholes. The scheme of equipment installation on surfaces and video camera placement in the borehole is given.
The issues of creating echolocation devices for measuring the depth of blast wells are considered. Control of the depth of the drilled wells is important to improve the reliability of information about the chipped massif. This helps to reduce mineral loss and improve crushing of the blasted massif. The first samples of sonars of this type were created at the Leningrad Mining Institute. Subsequently, according to the same scheme devices were developed at other enterprises. Dependences between borehole diameter and pulse frequency are given, as well as the results of studies of sonar resolving ability.
In the article bacause of new technique calculation of an exactitude point of meeting for developments (manufactures) of any space configuration is represented to the theory вертикальных errors. In this technique as comprehensive performance of an exactitude of coordinate definitions a generic point сбойки the ellipsoid errors is accepted.
The simulation of mountain developments with the helping of solid-state modeling allows to decide numerous mining-geological problems with the helping of of high-power mathematical means with computer application.
