Пошук
Зараз показуються 71-80 з 382
Impact of new technologies in hard rock underground mining taking into account operational efficiencies and production rates
(National Mining University, 2016-12-30)
Purpose: The purpose of this paper is to discuss the impact that new technology will have and a few of the key areas to be addressed that will ensure a successful and sustained adoption of new technologies within mining ...
Research of rock pressure manifestations in rocks of parting during descending and simultaneous mining of C9 and C10Top coal seams
(National Mining University, 2017-03-30)
Purpose. To estimate the probability of interstratal rocks stability loss during simultaneous mining of two seams in series in the descending order.
Methods. Methods of a computing experiment and mine observations were ...
Technological safety of sustainable development of coal enterprises
(National Mining University, 2017-06-30)
Purpose. Substantiation of conceptual base of searching the ways of threats prevention to sustainable development of coal enterprises in the presence of multidirectional vectors of economic pressure of the external ...
Mathematical modeling of unsteady water filtration into anchored mine opening
(National Mining University, 2017-06-30)
Purpose. To develop a mathematical model of the interrelated processes of coal-rock mass deformation and water filtration in the disturbed area to study the change in the value of water inflow into the mine working de-pending ...
Formation peculiarities of physical and chemical composition of highly mineralized edge water
(National Mining University, 2017-03-30)
Purpose. To study the formation peculiarities of the physical and chemical composition of highly mineralized edge waters in oil and gas fields.
Methods. The correlation relationships between the macroions of the edge water ...
The rate of deformation development in the rock massif on the basis of surveying monitoring on the earth surface
(National Mining University, 2017-03-30)
Purpose. Basing on the instrumental surveying measurement, to determine the rate of tensile strain displacements in the rock mass, and to use the obtained data for controlling rock pressure and ensuring job safety.
Methods. ...
Peculiarities of britlle and ductile materials destruction and deformation during the explosion of industrial shaped charges
(National Mining University, 2017-06-30)
Purpose. To study the laws of deformation and destruction of brittle and ductile rocks and concretes under explosion of industrial shaped charges.
Methods. In experiments, the following methods of investigation were used: ...
The procedure for determining pressure losses in washing fluid flow in hydraulic system of the core barrel
(National Mining University, 2017-03-30)
Purpose. Development of calculation procedure and analysis of pressure losses in the flow of washing fluid circulating through a hydraulic system of the core barrel.
Methods. Theoretical analysis based on the methods of ...
The first year of implementing a new concept of the journal “Mining of Mineral Deposits” of the National Mining University
(National Mining University, 2017-03-30)
This article presents the analysis of Ukrainian mining sciences journal – “Mining of Mineral Deposits” (acronym in English MMD). Our paper presents a case study of on journal in the field of mining sciences and describes ...
Improving efficiency of information measurement system of coal mine air gas protection
(National Mining University, 2017-03-30)
Purpose. Development of scientific approaches to creation of high-precision and high-speed optoelectronic measurement systems within the complex of air gas safety of coal mines by means of the developed and implemented ...