**– IN THE MINING SURVEYORS UNION OF RUSSIA **

Vasilchuk M. P. On increasing the level of industrial safety – p.4

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**– PROBLEMS OF SUBSURFACE RESOURCES MANAGEMENT **

**Panfilov E. I.** To improve the methodological approach to the definition and completeness of development of deposits of solid minerals (in order of discussion) – p.10

The authors of the expert–analytical generalization of the current state and trends of the ongoing research is devoted to the topical problem of improvement of the methodology for determining and taking into account losses of minerals during mining, and proposed recommendations for its further development.

**Keywords:** deposits of solid minerals; geological exploration; mining engineering; field development; extraction of minerals from subsoil and mineral components while processing; classification of losses during extraction; methods; standards; losses.

**– GEODESY, MINE SURVEYING, GIS **

**Nazarov L. S., Ilyushina T. V. **The solution of surveying tasks G. Agricola’s times with help ancient linear measuring instruments – p.21

The article describes the development of linear measurement tools, the key stored in the museums of the design of the measuring chains, measuring tapes and tape measures and their possible application in the solution of surveying tasks, presented in the works of G. Agricola (1494–1555 years).

**Keywords: **measuring chain; measuring tape; folding steps; linear measurements; surveying tasks; Agricola.

**Zubov A. V., Potyukhlyaev V. G.** Universal method of determining the angle «i» of level and its practical use – p.32

Given is the technique of high-precision geometric leveling without observance of equality of the shoulders. It is shown, how at each station to identify, control and to consider the influence of the angle «i» of the level. For the rapid detection of the oscillation of the angle «i», a recursive algorithm with the Grubbs-Smirnov criterion is proposed.

**Keywords:** high-precision geometric leveling; determination of the angle «i»; recursive adjustment; rejection criteria of Grubbs–Smirnov.

**Shlemov I. A., Galyanov A. V. **Accuracy of the methods of equalizing mine surveying and geodesic triangulations. The method of ordinary least squares – p.35

Precision and initial positions of equalization calculations by ordinary least squares method on an example of a solution of triangle are considered in this article.

**Keywords:** triangle; equalization; method of ordinary least squares; variants; stochastic process; random number generator; simulation modeling; efficiency; error.

**Kurkov M. V., Semenov A. E., Kotov A. A.** Application of Geoscan technology for mine surveying works – p.42

The article is devoted to application of modern technologies on the basis of unmanned aerial systems for the solution of production tasks of mine surveying. For example, solutions developed in the Group of companies Geoscan in comparison with the classical methods (instrumental and remote) for solving problems of surveying shown the advantages of these technologies.

**Keywords:** mine surveying; technology GC Geoscan; unmanned aerial systems; software.

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**Kopylova N. S., Pavlov N. S., Baranova A. V.** Enhancement of the technique of processing of results of land measurements by means of cloud computing when carrying out instrumental and diving survey of underwater transitions of the main gas pipelines – p.47

Application of cloud computing in modern surveyingon in a specific example of instrumental and diving survey of underwater transitions of the main gas pipelines is considered in this work. There are advanced scheme of process data transmission and main advantages and disadvantages of uptake in surveying were described.

**Keywords: **cloud community; big data; inspection of the main gas pipelines; cameral data processing.

**– MINE GEOMECHANICS**

**Cherdantsev N. V., Cherdantsev S. V., Zykov V. S.** Modeling of the geomechanical state of the rock mass, including the development and disjunctive dislocation – p.51

Within the model of the geomechanical state of the rock mass, which is under the conditions of plane deformation and enclosing working and disjunctive dislocation, represented by a narrow rectangular slot-like slot, investigations of the stressed state of the mass in the vicinity of the working and the gap were carried out. The results show that, under certain positions, significant stretching horizontal stresses arise. The analysis of research results is carried out and a number of features are revealed in the state of the array.

**Keywords:** anisotropic rock mass; disjunctive dislocations; excavation; surface attenuation; the zone of discontinuity.

**Zuev B. Yu., Tsirel’ S. V., Mel’nickaja M. E., Istomin R. I. **Physical modeling of geomechanical processes during collapse of the roof – p.56

The article is devoted to the investigation of the collapse of the main roof during the mining of contiguous seams by means of physical modeling. The received results allow to count on wider use of seismoacoustic monitoring of dynamic processes at mining of coal and ore deposits.

**Keywords:** physical modeling; collapse of the main roof; dynamic phenomena; seismoacoustic control; similarity of dynamic processes; monitoring.

**Gospodarikov A. P., Vykhodtcev Ia. N.** One approach to the mathematical modeling of seismic waves generated by blasting operations and their exposure to the stratified rock mass surrounding the excavation – p.61

This paper gives some results of mathematical modelling of seismic-blast waves and their exposure to the excavation. In this work original calculation scheme is built for numerical solution by finite difference method of given boundary problem. Apply of strang splitting method allows to simplify two-dimensional boundary problem to one-dimensional space differential equations.

**Keywords:** excavation; mathematical model; seismic-blast wave; difference scheme; numerical algorithm; laminal inhomogeneous rock mass.

**– ANNIVERSARIES **

60-th anniversary of Gritskov Victor Vladimirovich – p.65

**– INFORMATION **

Review of the conference «Industrial safety in the subsoil use and subsoil protection» – p.67

Review of the IX International conference «Combined geotechnology: resource-saving and energy efficiency» – p.69

45-th meeting of the presidium of the international society for mine surveying – p.71