– PROBLEMS OF MINE EDUCATION

L. A. Puchkov. Carthage mining engineers – p.5

 

– GEODESY, MINE SURVEYING, GIS

B. N. Dyakov. The unified theory of geodetic notches on the plane – p.9

The unified algorithm for geodetic notches on the plane was proposed. The idea of the algorithm is to introduce a local coordinate system and the form of the equations of position lines in a simpler form that can solve these equations by simple means. The formulas convert coordinates from one system to another. On the example of the reverse resection shows the potential of the proposed algorithm for the solution and assessing the accuracy of complex notches.

Keywords: Elementary measurement, state line, the main coordinate system, the local coordinate system, the system of equations, the combination of elementary measurements, the error position of the point.

 

S. A. Vokhmin, Y. P. Trebush, G. S. Kurchin, E. S. Maiorov. Rationing of indicators of extraction from a subsoil for chamber systems with trench ore bottom – p.12

Questions of rationing of losses and impoverishment at production of construction raw materials by underground way, chamber system of development with the ore trench bottom are considered. The mechanism of calculation of standard values of indicators of extraction from a subsoil is offered at underground production of construction raw materials in relation to chamber system of development. The example of calculation for conditional mine is given. Article is development of researches of authors of researches earlier published by collective.

Keywords: rationing; losses; impoverishment; extraction indicators; bottom.

 

 I. S. Pandul. Azimuth definition on supervision of bright stars in relation to surveying and geodetic works Azimuth determination on observations of bright stars in relation to mine-surveying and geodetic works – p.16

This paper proposes a method for determining azimuth from observations of astronomical navigation stars, which does not require knowledge of sidereal time, the technique of observation is an example calculation azimuth. The transition from azimuth to a directional corner is shown. The method will allow to introduce more widely definition of azimuths in practice of mine-surveying and geodetic works.

Keywords: astronomical azimuth, bright stars, directed corner, mine-surveying and geodetic works.

 

L. S. Safonov, A. V. Volokhov. The analysis of basic mine and geometrical factors in connection with optimization of network of approbation of ore deposits – p.17

At investigation and preparation of mineral deposits parameters of a network of approbation and its placement in space of ore bodies need to be determined on the basis of the analysis and the accounting of morphological and genetic factors: the sizes of ore bodies and features of distribution in them useful components.

Keywords: morphological factor; genetic factor; mineralization; affected of test zone; approbation network; indicator variability

 

V. V. Yakheev. The relationship between the angle of the direction of mine working on a plan for the preparation of the ore, the angle of inclination and the fall of the reservoir – p.20

To ensure ideal conditions for mining ore preparing the fields, you need to have the mine workings at an angle of less than 8°. Therefore the analytical definition of the relationship between the angles of incidence of the ore deposit, of working and of the mine plan is an important task.

Keywords: ore preparation; analysis, correlation; the angle of incidence of the ore deposit; the angle working; mine plan.

 

A. V. Zubov, N. S. Pavlov. Assessment of stability basic and deformation surveyor geodetic networks – p.21

An algorithm for assessing the stability of reference points surveyor-geodetic networks based on determining the parameters of the coordinate transformation between the cycles of observations by the gradient method was observed. Grubbs-Smirnov criterion was used to identify relatively unstable points.

Keywords: surveyor-geodetic reference network; the stability of the network points; Helmert transformation; the criteria for rejection of Grubbs-Smirnov criterion; the method of least squares; gradient method.

 

– PROBLEMS OF MINE GEOMECHANICS

V. Sokola-Sheviola, I. Kovalska-Kviatek, A. Mezheiovska. Subsidence values and the speed of mining ground subsidence after the termination of longwall mining – p.24

The paper presents the theoretical and measurement-determined mining ground subsidence after the termination of longwall mining. The changes involving the subsidence speeds of the observed points in time were defined. For the determination of model parameters, a new comprehensive method was applied, which allows to apply in the calculations the results of continuous measurements involving the subsidence of a single point, realized within a short time period. The analyses involving the changes of subsidence and the changes of subsidence speed of the selected observed points have shown that the fundamental part of the influences is displayed on the surface ground almost immediately. The increase of subsidence after the stoppage of longwall front is insignificant and is displayed relatively fast. The bulk part of these subsidences is displayed during the preparatory mining works involving the liquidation of longwall timbering. In the presented example, after about six months from the stoppage of longwall front, the subsidence practically stopped its progress entirely. The obtained results have a relevant practical impact when estimating the value of subsidence increase, subsidence speed and the duration of subsidence after the termination of longwall advance. The estimation of these values can be carried out in accordance with the algorithm presented in the paper.

 

N. N. Grishchenkov, E. V. Blinnikova. The differentiated assessment of the abutment zones in the field of influence of clearing works – p.31

The method for contouring the abutment zones with taking into account simultaneously forces acted along the normal to the strata and forces acted on the strata is offered. The description forming types of the abutment zones is given.

Keywords: rock pressure; abutment zone; tensions.

 

V. A. Kiselev, N. V. Guseva. Evaluation system of parameters for evaluation geodynamic state of territory for design and building of main pipe-lines – p.34

The analysis of existing approaches for justification list of base-parameters used to assess the geodynamic state territories was performed. two aspects of the term condition was considered. It was proposed to use qualimetrical approach to create the system of parameters to evaluate the territory geodynamic state. A parameters-tree and the base-parameters system were constructed. There were presented the values of the base-parameters, and provides references to the literature. An assessment procedure of the territories geodynamic state has been developed. This procedure is based on a comparison of the defined values with the corresponding base-parameters.

Keywords: geodynamics; state of territory; evaluation; qualimetry; basic system of parameters; references to the literature.

 

V. V. Melnik, I. I. Kaydo, K. M. Murin. Anchor fastening as management method by the zonally-desintegrated array round preparatory developments – p.40

Results of researches of management by the state of the zonally-disintegrated array round preparatory developments by means of anchor fastening are given.

Keywords: preparatory developments; geomechanical processes; tensely-deformed state; zonal disintegration; anchor fastening; geometrical parameters.

 

V. V. Melnik, I. I. Kaydo, K. M. Murin. Research of formation of zones of deformation of rocks at zonal disintegration – p.42

Zones of deformation of rocks are considered at zonal disintegration and essence of processes of disintegration of array in these zones is defined.

Keywords: preparatory developments; geomechanical processes; tensely-deformed state; zonal disintegration; disintegration zone.

 

 E. E. Kvaytkovskaya. About the calculation of intermine pillars – p.44

The results of numerical experiments to assess the state of stress of the rock mass and pillar when developing suites of coal seams are given.

Keywords: rock mass; the suite of reservoirs; stress; calculation pillars.

 

– PROBLEMS OF ECOLOGICAL AND INDUSTRIAL SAFETY

 A. A. Omelchenko. Methods to predict doses of ionizing radiation at the stage of open pit or mine design for working rare-earth deposits with ore minerals of increased radiation (a case study of the Azov rare-earth deposit of the Priazovie) – p.47

Methods to predict doses of ionizing radiation and degree of radiation hazard of rare-earth ore minerals of increased radiation at the stage of open pit or mine design are first described. The essence of the methods is as follows. Firstly electronic 3D multifunction model of the rare-earth deposit is generated and areas of increased radiation, based on the large number of exploratory wells, are delineated. Then volumes of metalliferous deposits and radioactive zones at the given levels of increased radiation are calculated along geological survey lines for ore minerals of increased radiation and for the deposit in general. From these calculations equivalent doses in mine workings with the prevailing increased and top levels of radiation are calculated. Development of measures for environmental safety will be specified by the doses of ionizing radiation.

Keywords: radioactivity; 3D model; ionizing radiation; radiation dose; radiation protection; environmental safety.

 

– PROBLEMS, HYPOTHESES, FACTS

 Y. A. Chernegov. About possibility of course of SVS-processes in bowels of the earth and their consequences – p.50

Attempt to explain existence of more high temperatures of rocks in deep wells, as a result of course of processes of self-extending high-temperature synthesis is made. It is shown that the available scientific and practical reserve in the field of realization of SVS-processes in Russia and abroad is only initial stage of development of the perspective direction of creation of materials of new generation with valuable consumer characteristics.

Keywords: subsoil; deep wells; rocks; temperature mode of a subsoil; self-extending high-temperature synthesis.

 

K. E. Trishin. Chronicles of ancient civilizations: cynical falsification or reality? Part I – p.57

 

– ON MATERAILS OF CONFERENCES – p.63

 

– ANNIVERSARIES – p.66

 

– ART WORKS OF AUTHORS AND READERS – p.69

 

– INFORMATION – p.70