Abstract. In the article the necessity of continuous control over the condition of the roof of mine workings is considered, to increase the safety in the conduct of mining operations. Provided the rationale for monitoring in complex mining and geological conditions, as well as in areas prone to rock blows and sudden coal emissions. The existing methods for controlling the displacement of the roof rocks are described, and their shortcomings are given. An idea is given of an automated system for monitoring the displacement of the workings. The stages of the system as a whole are considered, including the choice of a linear displacement sensor, a platform for software development, and a programming language. In order to ensure integration into other systems and subsequent analysis of the results, it is envisaged to output data to spreadsheets. Are shown the interfaces of the program and the output of the readings from the sensors to the monitors of the mining manager.

No abstract

The article shows the relevance of the use of alloyed cast iron in mining and metallurgical engineering. The use of cast iron alloyed with titanium and vanadium has not been sufficiently studied for the working bodies and friction units of mining machines, such as pumps, coal scoops, hydrocyclones, crushers and mills. They have the main abrasive type of wear. This work considers the influence of titanium and vanadium on the mechanical properties. The performance indicators of parts of mining machines and metallurgical products in contact with high-abrasive and high-temperature environments is also considered. The optimal content of titanium and vanadium in gray cast iron in the range of 0.05-0.1% is set. This provides the required strength properties of the components, while increasing their heat resistance. Bushings made of this cast iron have the required wear resistance and can improve the operational reliability of equipment in mining and metallurgical industries.

This paper presents the results of a comprehensive survey of a coal-bearing rock mass conducted by means of a combination of geophysical methods. The task of a comprehensive survey is to establish the relationships between the manifestations of mining and geological processes in the preparatory workings and the parameters of electromagnetic emission and high-frequency radio wave scanning. The estimation of the parameters of unsteady geophysical fields, resulting in the stress-strain state of the rock mass, was carried out using the ANGEL-M complex. The assessment of decompression and the presence of fracturing of rocks around the belt road was performed by the OKO-2 GPR system. Analysis of the results of the examination of underground mine workings using the “ANGEL-M” and “OKO-2” complexes shows a high degree of convergence of the state of the workings and instrument readings. Cave-in places of in the workings are located in high amplitude regions of radio waves. Identification of the development sites prone to geodynamic manifestations will allow to take measures for strengthening the frame support in advance, preventing deformation of the extensible belt conveyor. The implementation of a comprehensive survey will improve the reliability of transport conveyor lines and the safety of mining operations.

Increasing the efficiency of coal mining, developing new solutions, Ensuring the load on the complex mechanized face up to 40-60 thousand tons / day, Ways to achieve the specified production volumes.