Sfoglia Volume 10, Issue 3 per Data di Pubblicazione
Items 1-14 di 14
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Numerical modelling of massif zonal structuring around underground working
(National Mining University, 2016-09-30)Purpose. To identify indicators of massif zonal structuring around underground working using numerical modeling techniques. Methods. Research into massif zonal structuring was performed using finite element method and ... -
Technological complex for production, transportation and storage of gas from the offshore gas and gas hydrates fields
(National Mining University, 2016-09-30)Purpose. Substantiation and development of schematics acceptable for the existing technological methods of natural gas production and transportation from the offshore fields of gas or gas hydrates. Improvement of their ... -
Designing cutting tools of mining machines for coal auger mining
(National Mining University, 2016-09-30)Purpose. The need for new technologies and techniques for the efficient development of thin coal seams. Methods. Mathematical and experimental modeling of the contact interaction of multipoint cutter with the rock. ... -
Energy indicators of the rescue units members
(National Mining University, 2016-09-30)Purpose. To determine energy consumption by rescuers depending on the type and conditions of rescue and emergency response operations. Methods. Analytical and experimental methods have been implemented both for the study ... -
Features of setting up a complex, combined and zero-waste gasifier plant
(National Mining University, 2016-09-30)Purpose. Setting up and implementation of complex, combined and non-waste power-chemical plant based on underground coal gasification with regard to analysis of its technical and economic efficiency. Methods. Research ... -
The impact of vibration mechanism’ installation place on the process of retrieving stuck drill pipe
(National Mining University, 2016-09-30)Purpose. The present paper studies the dependence of the dynamic oscillatory movements in the area of drill string sticking on the parameters of vibrating mechanism and place of its installation in the heavy weight drill ... -
Failure criteria for structurally heterogeneous materials
(National Mining University, 2016-09-30)Purpose. To analyze the current research regarding rock failure criteria and justify the analytical failure criterion for structurally heterogeneous materials in three dimensional stress-strain state. Methods. The study ... -
The results of magnetic separation use in ore processing of metalliferous raw basalt of Volyn region
(2016-09-30)Purpose. To determine the effectiveness of the electric field use in ore processing for extraction of native copper concentrate from raw basalt, to identify the most technologically advanced grain-size classes of the feed ... -
Numerical methods of geomechanics tasks solution during coal deposits’ development
(National Mining University, 2016-09-30)Purpose. Generalization of numerical modeling of geomechanical processes in the vicinity of mine workings by finite elements method and making recommendations for substantiation of suitable construction and behavior of ... -
Determination of basic calculation and experimental parameters of device for bore hole cleaning
(National Mining University, 2016-09-30)Purpose. To substantiate the design and operating technological parameters of the device for the interval bore hole cleaning departing from the set dependences of active jets formation in the flow through the blade ... -
Estimation of corrosion resistance of curing mixtures based on coal-bearing rocks from Western Donbass
(National Mining University, 2016-09-30)Purpose. Substantiation of possible use of coal-bearing rocks as a replacement for a part of the filler in the preparation of shotcrete for lining of mine workings in the conditions of mineralized mine water. Methods. The ... -
Method of simulating rock mass stability in laboratory conditions using equivalent materials
(National Mining University, 2016-09-30)Purpose. To determine the qualitative composition of the equivalent material of a laboratory model representing Kryvyi Rih iron-ore basin ground, as well as to develop a method to determine its quantitative composition for ... -
Regularities of surface subsidence and rocks displacement within the boundaries of local workings
(National Mining University, 2016-09-30)Purpose. To establish typical phases of the earth surface subsidence and rocks displacement on the local workings’ boundary under the influence of the working face movement. Methods. Development of the general picture of ... -
Mechanism of magnetic field effect on hydrocarbon systems
(National Mining University, 2016-09-30)Purpose. The aim is to analyze the problem of preventing the asphalt-resin-paraffin deposits (ARPD) in the oil industry equipment and to justify application of paraffin control methods; to review modern approaches to ...