New techniques and technologies in mining : proceedings of the School of Underground Mining, Dnipropetrovsʹk/Yalta, Ukraine, 12-18 September, 2010

Front Cover......Page 1
Table of contents......Page 6
Preface......Page 9
Efficiency of water supply regulation principles......Page 10
Substantiation of design and installation technology of tubular rock bolts by explosive method......Page 18
Technology in life......Page 24
Improvement of the methodology of managerial solutions substantiation in coal mining industry......Page 28
Review of support systems and methods for prediction of gateroads deformation......Page 34
Natural and mining factors that define quality of black coal for heat power stations......Page 46
Influence of advance rate of high-output longwalls on methane abundance of mine workings......Page 52
Strength calculations of block elements of room-and-pillar mining under permafrost conditions......Page 56
Dependence of effectiveness of development of mining operations on processibility of coal seams deposits with thickness of 1.2 m......Page 60
Safe electric power transmission for explosive underground mines......Page 66
Analysis of hydrogeodynamics in a mining region during exploitation till closure of coal mines......Page 70
Bifurcational model of rock bottom heaving in mine workings......Page 80
Numerical modeling used for designing of coal mine roadway support......Page 86
Calculation substantiation of the yield lock model of the polygonal yieldable support with elongated props by means of experiment......Page 92
Design of mine workings network on the basis of their functional-structural description......Page 98
Conditions for safe underground gasification of lignite in Poland......Page 106
Control and power supply of highly efficient mining plough systems......Page 112
Possibility of production complex of sufficient gasses in Ukraine......Page 122
Researches of influence of depth of an in-seam working on displacement field of rocks in its vicinity......Page 130
Research of influence of support resistance of the stope in the immediate roof condition......Page 136
Improvement of mining methods with consolidating stowing of iron-ore deposits on big depths......Page 140
New generation concrete – new approach in designing of underground structures......Page 146
Results of the 3-D simulation of the transversely isotopic rock mass stress state around a longwall......Page 154
Effect of design of half-mask respirators on their key qualities......Page 160
Modern rescue service as a factor providing a sense of staff security (on example of coal mining)......Page 166
Analytical determination of parameters of material and thermal balance and physical parameters of a coal seam work-out on mine “Barbara”, Poland......Page 170
The research of stresses around the mine working relative to a coal seam in the models made of optical material......Page 176
Formation of gas hydrates while mine methane extracting and possible methods of the problem solving......Page 180
Prediction of mining-induced seismic activity with the use of neural networks on displacement field of rocks in its vicinity......Page 184
The role of natural and technogenic components in failure of geomechanical stability of the territories which are in the influence zone of mining objects......Page 198
Technology of support of workings near to extraction chambers......Page 202
Bolting for mining workings in clay rocks and ores......Page 208
The first Ukrainian corporative university......Page 212
Influence of the shape of portal support of working junctions on its stress state......Page 216
Clean energy from hard coal......Page 222
Features of selectivity process of borehole underground coal gasification......Page 228
Definition of rating loading of multilayer winding of rubber-rope cable......Page 232
Design principles of the control systems considering diversity of automation objects......Page 240
Increase of stability of development openings using combined mining system for flat coal seams at big depths......Page 246
The concept of automation and monitoring of the production process in an underground mine......Page 254
Methods of calculation of pressing value of frame support’s props......Page 264