目次

Introduction Chapter 1. Geomechanics of roof bolt and frame mine workings' supports interaction in Unified Load-Bearing System 1 Geomechanics of computer modeling the "Laminal Rock Massif – Mine Working Support” system1.1 The basic principles of computer modeling of geomechanical processes in development workings area 1.2 Substantiation of selecting the mathematical modeling method for geomechanical processes 1.3 Specifics of geomechanics tasks solution by finite element method 1.4 Analysis of the computational experiment technologies 1.5 Algorithm of the computational experiment performance 2 Development and substantiation of geomechanical model of the “Laminal Rock Massif – Mine Working Support” system2.1 Substantiation of coal-bearing strata structure in district of basic area of stratified development working 2.2 Substantiation of rock mass layers and coal seams mechanical characteristics by the complete diagram of their deformation 2.3 Substantiation of geomechanical model sizes of the “laminal rock massif – mine working support” system 2.4 Model development of frame support of basic in-seam working 2.5 Testing of model adequacy to real object Conclusions 3 Advancement and substantiation of roof bolts and frames mechanical bonds in unified load-bearing structure of frame-and-bolt support with selfregulated load transfer on bearing elements3.1 Efficiency of spatial yielding coupling between roof bolts and frame 3.2 Substantiation of frame support load-bearing capacity increase principle by means of roof bolts Conclusions 4 Research and analysis of strain-stress state of the “Laminal Rock Massif – Mine Working Support” system in case of absence or presence of mechanical bonds between side roof bolts and frame prop stays4.1 The stress-strain state system research in case of absence of mechanical bonds between frames and side roof bolts 4.2 The stress-strain state system research in case of mechanical bonds of frames and side roof bolt supports Conclusions 5 Substantiation, Research and analysis of local models of yielding coupling between bolts and frame. Underground trial5.1 Local models parameters substantiation 5.2 Research and analysis of a model of roof bolt coupling node with releasable binder 5.3 Research and analysis of a model stress-strain state of releasable binder coupling node with frame prop stay 5.4 Parameters calculation method of frame prop stays yielding coupling with side roof bolts 5.5 Methods and results of conducted underground investigations Conclusions Chapter 2. Development, research and parametric optimization of the yielding tubular bolt support 6 Geomechanics of interferences between roof bolt support and rock massif6.1 Analysis of modern interference theories between rock massif and roof bolt support 6.2 Analysis of theoretical backgrounds in roof bolt support engineering 6.3 The design and technology development of TA1 tubular bolt setting 6.4 Analysis of roof bolt support parameter calculation method 120 7 Investigation of the “Tubular Work Piece – Rock Massif” system dynamic deformation7.1 Development and substantiation of analytical model of tubular bolt work-piece deformation by explosive energy 7.2 Determination of explosive charge mass and development of a criterion of the “tubular work-piece – rock massif” system geometrical parameters optimization 7.3 Research of solutions on deformation calculation of the “tubular work-piece – rock massif” system and selection of explosive charge Conclusions 8 Stress state determination of the “Tubular Bolt TA1 – Rock Massif” system in static interaction with rock sides of a borehole8.1 Stress state determination of bolt TA1 and host rocks under the “hanging up” scheme 8.2 Stress state determination of tubular bolt and host rocks under the scheme of their joint deformation 9 Development and research of the basic parameters calculation method of tubular bolt TA1 in static interaction with rock walls of a borehole9.1 Calculation method development of the load-bearing capacity of a tibilar bolt TA1 9.2 Investigation of the stress state of “tubular bolt – rock massif” system and load-bearing capacity of TA1 bolt 9.3 Determination of working section length and TA1 bolt operational characteristic 10 Experimental investigations of tubular bolts TA110.1 Method, results and analysis of experimental investigations of the “tubular work-piece – rock massif” system dynamic deformation 10.2 Method, results and analysis of experimental investigations of the “tubular work-piece – rock massif” system static interaction 173 11 Development of parameters calculation method of TA1 tubular bolt11.1 Parameters calculation of TA1 tubular bolt at solving the direct task 11.2 Parameters calculation of TA1 tubular bolt at solving the inverse task 12 Substantiation of efficiency improvement techniques for soft rocks hardening by roof bolt support12.1 Analysis of roof bolt support operational modes in soft rocks 12.2 Special aspects of force interaction process of existing tubular bolts structures with soft rocks Chapter 3. Development, research and parametric optimization of the yielding roof bolt support with elastic joist 13 Hardening of mine workings' border rocks by roof bolts with elastic joist13.1 Development of a yielding roof bolt structure with elastic spacing joist 13.2 Stress state calculation of the roof bolt elastic joist under axial forces influence 13.3 Stress state analysis of the roof bolt elastic joist 13.4 Calculation of the expanding roof bolt with elastic joist 13.5 Experimental investigations for expanding roof bolt parameters calculation 13.6 Rational parameters selection of roof bolt support setting 13.7 Method of rational parameters selection for the expanding roof bolt with elastic joist 14 Pilot tests of the yielding roof bolt support14.1 Geological and mining test conditions of the roof bolt support with elastic joist 14.2 Testing of the roof bolts in “Zoria” Mine 14.3 Testing and practical use of the roof bolts in “Yuvileina” Mine 14.4 Testing of the roof bolts in “Miuska” Mine Conclusions