Mining of Mineral Deposits

Genadiy Pivnyak, Volodymyr Bondarenko, Iryna Kovalevs'ka, Mykhaylo Illiashov

• Publisher: CRC Press
• Year: 2013
• ISBN:
  9781317963790
• Edition: 1
• Topic: Technology & Engineering
• Subtopic: Civil Engineering
• Index: Technology & Engineering

In the last decades coal production capacity has increased rapidly and its quality, power and the reliability of equipment has steadily improved. Moreover, stability of production processes can be controlled better. In connection with that, unification of scientific schools focusing on "Mining of deposits" is an integral trend from the viewpoint of technical and technological policy. This collection of papers represents the scientific and technical achievements with regard to mineral deposits mining intensification based on effective use of modern techniques and technologies. Also, specific attention is paid to progressive and innovational technologies in the coal industry of leading countries. Widening the range of mining-geological conditions under which drivage and maintenance of mining activities are carried out, requires application of new constructive decisions. Hence, this collection of papers is focusing on the following topics: results of new equipment introduction; experiments on mutual interaction of roof support elements, protective construction and near-the-contour rock massif; analytical and calculation methods of geomechanical tasks solution; development of gas hydrates and technologies of underground coal gasification; studies on environment protection; economic aspects; management and marketing in mining production, and other important aspects of mineral deposits exploitation.

On parameters influence evaluating method application in some geotechnical tasks

G. Larionov, R. Kirija & D. Braginec

M.S. Polyakov Institute of Geotechnical Mechanics, Dnipropetrovs’k, Ukraine

ABSTRACT: The paper is devoted to sequence approximation method application for influence parameters evaluating in some geotechnical tasks. The proposed method efficiency was showed on the transformation solving into univariable function product for dynamic elastically deformed medium under borehole pressure impulse. Another task is devoted to loading hopper for averaging rock mass problem. Influence parameters evaluating consist of univariable function powers comparisons in point vicinity representation as univariable power function product.

1 INTRODUCTION

The reconstruction of the analytical form function is made with mesh value function methods as usual. When the function value obtaining time expense and number of design parameters are small the approximation methods are used. However in case of complicated and multivariable task when using the methods is time expensive, it is hard enough and impossible to do reconstruction even. Using the analytical reconstructed form function to design parameter influence evaluating has two demands. These demands are opposite. From the one hand, the...

Table of contents

• Cover
• Half Title
• Title Page
• Copyright Page
• Table of Contents
• Preface
• New-generation technique and technology for leakage tests
• Optimal parameters of wall bolts computation in the united bearing system of extraction workings frame-bolt support
• Pillars sizing at magnetite quartzites room-work
• The calculation scheme of mathematical modeling of displacement process of a terrestrial surface by working out of coal layers
• Changes of overburden stresses in time and their manifestations in seismic wave indices
• Specifics of percarbonic rock mass displacement in longwalls end areas and extraction workings
• Operations under combined method of mining graphite deposit
• Plasma reactor for thermochemical preparation of coal-air mixture before its burning in the furnaces
• The influence of fine particles of binding materials on the strength properties of hardening backfill
• Magnetite quartzite mining is the future of Kryvyi Rig iron ore basin
• Microalloyed steels for mining supports
• Induction heating in electrotechnology of machine parts dismantling
• Studies of stationary supporting zone sizes varied in the course of mining operations in deep horizons
• Influence mechanism of rock mass structure forming a stress on a face support
• Prospects for the bioindication methods implementation in the environmental management system of industrial enterprises
• Hydrogeodynamics of the contact surface “lining-saturated rocks” in opening mine working
• Conditions for minerals extraction from underground mines in the border areas against the seismic and rockburst hazards
• Formation principles of the scientific system of ecological management at the industrial enterprises
• Fundamentals of highly loaded coal-water slurries
• Genetic classification of gas hydrates deposits types by geologic-structural criteria
• The recourse-saving compositions of backfilling mixtures based on slag waste products
• Justification of the gasification channel length in underground gas generator
• Assessment of auger mining application in Polish hard coal deep mines
• The enhancement of hydrocarbon recovery from depleted gas and gas-condensate fields
• Study of rock geomechanical processes while mining two-level interchamber pillars
• Heat pumps for mine water waste heat recovery
• Research of stress-strain state of cracked coal-containing massif near-the-working area using finite elements technique
• The results of instrumental observations on rock pressure in order to substantiate complete excavation of coal reserves
• The study of ecological state of waste disposal areas of energy and mining companies
• The main technical solutions in rational excavation of minerals in open-pit mining
• Method of calculation of the minimum pressure of hydro breaking of the coal layer
• Main directions and objectives of diversification processes in coal regions of Donbass
• Complex use of coal of Northern part of Donbass
• On the limit angles of inclination of belt conveyors
• Investigation of the rock massif stress strain state in conditions of the drainage drift overworking
• Methodology of gas hydrates formation from gaseous mixtures of various compositions
• The development of methodology for assessment of environmental risk degree in mining regions
• Bolt support application peculiarities during support of development workings in weakly metamorphosed rocks
• Pressure variation of caved rocks in mined-out area of face
• Magnetic stimulation of transformations in coal
• Receipt of coagulant of water treatment from radio-active elements
• Blasting works technology to decrease an emission of harmful matters into the mine atmosphere
• The investigation of rock dumps influence to the levels of heavy metals contamination of soil
• The magnetic susceptibility of granular manganese sludge of Nikopol’skyy Basin
• Inner potential of technological networks of coal mines
• On parameters influence evaluating method application in some geotechnical tasks
• New technical solutions during mining C5 coal seam under complex hydro-geological conditions of western Donbass
• Effect of degasification efficiency of gas-emission sources under complex degassing on maximum load on a stope as for gas factor
• Modification of cement-loess mixtures in jet technology during mastering underground area
• The modernization of ways of treatment of coal stratums for rise of safety of underground mine work
• About the influence of stability of workings on the parameters of their ventilation in terms of anthracitic Donbass mines
• In-stream settling tank for effective mine water clarification
• Rationale of method of unloading area rocks around of developments workings for her repeated use
• Technological parameters of cutoff curtains, created with the help of inkjet technology
• The investigation of coal mines influence on ecological state of surface water bodies
• Experimental researches of geomechanical characteristics of railway and point switches of underground transport
• On the question of implementation prospects of selective mining for exploitation unconditional coal seams
• Study of mechanical half-mask pressure along obturation bar
• Research of mine workings stability on volumetric models made from optically active materials
• Researches of structural-mechanical properties of coal tailings as disperse systems
• Theoretical investigation of dry fictional separation of materials on rotating cylinder
• Influence of undermined terrain mesorelief on accuracy of forecasting subsidence and deformation of earth surface
• Aspects of sulphurous feed extraction in Ukraine
• The stress-strain state of the belt on a drum under compression by flat plates
• Multifactorial mathematical model of mechanical drilling speed
• Elastic waves influence upon enhancement of shale rocks fracturing