The actual issues of computer-aided drafting, maintaining and storing the mining surveyor graphic documentation. Particular attention is given to the need of regulatory document creation. The problem of computer processing and storage of surveying information is posed and handled.

The engineering-geological and geo-ecological problems in the construction of underground structures are considered in the present paper. The different nature of the technical measures to reduce the environmental load are considered. This paper focuses on the various engineering-geological factors affecting the security of the geological environment. It is indicated the influence of hydrogeological conditions during mining operations both open pit and underground. It is noted change in the landscape associated with the formation of man-made depressions in the earth's surface a result of preliminary drainage area of future construction. The problems associated with waste storage of mining and processing industries are considered. A result of research presents a conceptual approach for the using of engineering-geological information to solve environmental problems.

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.

Problems of reclamation the grounds broken as a result of development of deposits of minerals, borrow priority position in modern researches on rational use of natural resources. In clause the approach to the decision of the given problem from a position of engineering geology is considered.

The issues of completeness of extraction of coal reserves from the subsurface in open-pit mining are considered. It is noted that compliance with legislation on subsurface resources and measures taken by surface mines to increase the level of extraction of reserves provided a standard level of extraction of coal reserves from the subsurface during the restructuring of the industry.

Analysis of the scientific legacy of V.D. Lomtadze shows that the main directions of engineering geology have been developed by many followers and have been recognized both at home and abroad. Three laws of engineering geology, proposed by V.D. Lomtadze in 1978, namely the law of geological correspondence, the law of accounting the dynamics of the earth crust and the law of detailed study of the geological environment have been confirmed in modern scientific research. At present there is some stagnation in engineering research due to the reduction in the rate of construction, and the primary statement of V.D. Lomtadze that engineering geology is aimed at solving problems of rational use and protection of the geological environment turns out to be true.

On the basis of the general engineering-geological typification of mineral deposits V.D. Lomtadze proposes to build a typification taking into account the difficulties of reclamation of the consequences of open pit or underground mining. Typification can be used at the stage of designing a mining enterprise with inclusion of physical and biological reclamation of disturbed lands into the project.

The coal extraction completeness is considered. It is ascertained that fixed standards of operation coal losses are carried out measures for increase extraction level provide unimportant changes in quality of coal extraction during the branch restructure and transition to market economy.

The possibility of choosing the optimal method of development of a particular deposit with regard to the expected geo-environmental changes is considered. Assessment (in points) of predicted changes in the natural environment during mining operations by traditional methods allows to consider underground mining as preferable. The necessity of transition of engineering geology to the status of a science justifying the method of development rather than providing a pre-selected one is shown.

Large-module involute gears are widely used in heavy, transportation, mining, road construction and chemical engineering. However, the calculations of contact strength and endurance of the active surfaces of the teeth of such gears poorly reflect their features.

Depending on the design of gear hydraulic machines, they are used as pumps, motors and flow dividers at pressures up to 28-30 MPa in power hydraulic systems of machines. In the pressure range of 0.3-2.5 MPa pumps are used in the lubrication systems of engines, transmissions of various working machines, in compressors. Gear pumps are also used for pumping and transportation of liquids and quasi-liquid media with temperatures up to 250 ° C and viscosity 1-3800 cSt, including aggressive and abrasive media.

The growing scale of construction leads to an increase in the size of the zones of influence of structures on the geological environment, which creates significant difficulties in assessing the physical and mechanical properties of rocks, taking into account their heterogeneity and anisotropy.

Large-module gears are widely used in heavy and transport engineering, in mining, construction and road machines, in apparatus of chemical industry.

The problem of rational use of the geological environment in the areas of mining industry has acquired in recent years a tremendous importance.

In the production of gears of mining and transport, hoisting, construction and road and other machines, especially in the conditions of repair plants or workshops, often cut teeth by copying the depressions with disk or finger mills.

Assessment of changes in engineering and geological conditions (EGC) of mining areas is a type of geological work at different stages of engineering surveys and is a continuation, verification and refinement of engineering and geological forecasts laid down in the projects of mining enterprises.

In the practice of designing gears more and more attention is paid to modern methods of estimation of qualitative characteristics of meshing. The automation of complex calculations of geometry, kinematics and especially labor-intensive calculations of the strength of gear pairs is becoming widespread.

Gears with combined (radial and tangential) offsets of involute tooth profiles have great possibilities to meet the strength and geometric-kinematic requirements of.

In the problem of rational use and protection of the geological environment in mining, the central place is occupied by the issue of limiting the emergence and development of geological processes and phenomena, most of which are the result of changes in the natural stress state of rocks around the mine workings and is realized in the form of violation of the existing equilibrium.

The use of gear pairs with combined displacement of tooth profiles opens up new geometric, kinematic and strength possibilities in the design of gears.

High-performance mining machines can be created only on the basis of optimal solutions for structural layouts, in which mechanical transmissions play a major role. The load capacity and durability of gears determine the working life, production and repair costs of mining machines ...

Modern geological science in the study of the mineral resource base of the country is developing in two eye directions. One of them, the main, traditional, is focused on solving the issues of prospecting and evaluation of mineral deposits, and the second - to identify and assess the conditions of their development and the development of methods for predicting processes and phenomena in the construction and operation of mining structures ...

The rowing-rotor actuator of a loading machine with rows fixed on the rotor at a given trajectory of the rowing tooth can be considered as a deaxial balancer-slider planar mechanism. ...

In most modern machines, gears are the main components affecting the performance, reliability and cost of the machines. In the design of gears, their strength calculations are of great importance. ...

When identifying the contact strength of gears, researchers have always noted the influence of the nature of lubricants on the development of fatigue pitting. The possibility of creating synthetic oils that meet certain requirements has been noted. Work on elucidating the role of lubricants in the contact strength of gear surfaces continues now. ...

At interaction of gripping bodies of loading machines with the stack of resistance forces of the latter to the introduction and separation of some volume of material are random, stochastic nature. This makes it difficult to determine the necessary driving forces on the actuator of loading machines. The existing methods of calculations touch upon the issues of interaction with the stack of the bucket actuator of the lower gripper and paired raking tines. The continuous acting actuator of the upper gripper is insufficiently investigated. The questions concerning principal features of this body and its energy parameters are touched upon only in a few works. To some extent, this is due to the uncertain nature of the motion of this organ when interacting with the stack, which makes it difficult to consider its kinematics, and hence the determination of forces in the links, not to mention the dynamics of loading...

Gear pneumatic motors belong to volumetric type motors. The working chambers are the hollows, and the pistons are the teeth of the mating rotors. The troughs and teeth have complex shapes and participate in complex planar reciprocal motions, making it difficult to understand the working processes of these engines.

During bench tests of Novikov gears to identify their load capacity it was possible to experimentally assess their efficiency. For this purpose, an electric motor balanced on support rollers was connected to a test bench with a closed power flow. By its angular deviation in the steady-state mode of operation was determined by the reactive torque of the motor, the power of which at the closed circuit of loading gears is spent only on overcoming the resistance to rotation.

The choice of optimal parameters of gears with Novikov gearing is a responsible task in mining engineering, especially in the gears of underground machines, to the dimensions of which are strict requirements. Even greater difficulties arise when designing Novikov gears that would satisfy the requirements of high contact and fracture strength of teeth. Reliable information about the experimental application of these gears in mining engineering is still insufficient. Besides, the experimental data refer to separate gears made with different parameters, materials, initial contours. They are obtained under different load conditions. All this complicates orientation in the choice of optimal parameters of Novikov gears in the design of.

Novikov gears due to their inherent increased load capacity are becoming more and more widespread. However, the issues of bearing durability, as well as the strength and stiffness of their shafts have not yet been studied. Therefore, the load of bearings and shafts is either not assessed at all or is assessed very roughly. This situation is explained by a certain specificity of force formation during the interaction of links in Novikov gear and the lack of proper developments due to the unexplored nature of the issue.

A device for large-scale graphic representation of wheel tooth profiles cut with rack and pinion tools using the running-in method has been developed. It uses a special template made of transparent sheet material (plexiglass), in which narrow slits are provided in scale in the shape of the cutting tool contour. On the lower plane of the template there are equally spaced parallel risks perpendicular to the risk coinciding with the middle dividing line of the rail.

The unfolded socialist construction both within the Soviet Union and in the countries of people's democracy in a number of cases is associated with the use of loess rocks as a base for various kinds of structures. The main engineering-geological feature of these rocks, causing complications during construction and operation, is their ability to show at additional moistening uneven, mainly rapid compaction - subsidence. The latter, as it is known, occurs under the influence of both the pressure of the structure and the weight of overlying moistened rocks, but more often from both. The proposal of some authors to call the phenomenon of uneven compaction at moistening “additional settlement”, if it is caused by external load, and to distinguish it from subsidence, caused ostensibly only by the weight of moistened rocks, has no sufficient grounds. Both phenomena have the same nature - compaction under additional moistening and pressure action. Obviously, without pressure of the latter, regardless of its nature, compaction will not occur. In addition, in the practice of civil and geotechnical engineers, the concept of “additional subsidence” entered as a term denoting the appearance of new deformations in the rock after stabilization in certain conditions. The concept of “subsidence” quite clearly characterizes a phenomenon inherent in loess rocks.