Shestopalov I. Ground of parameters of frame-anchor lining for support of the preparatory working of deep mines

Object of research: geomechanical processes in the "rock massive - the shell of the fortified rock anchors - frame support." Objective: to establish laws of deformation of the "arch and roof bolting - accommodates an array" to justify the parameters frame-bolting. Methods: analysis literature; methods of rock mechanics; mathematical modeling of geomechanical processes; methods of the theory of elasticity, structural mechanics, mechanics of the deformed body; probability theory and mathematical statistics. The scientific value of the work: the establishment of a theoretical and experimental confirmation of the allowable setup time bolting patterns and stress-strain state of the multilayer shell pedigree reinforced anchors, which is part of the "frame - the shell of the fortified rock anchors." Practical significance of this work is to develop: new ways attachment; methodology for calculating the parameters of the combined lining; standard enterprise. Results have been implemented in the mine "Dobropilska". m5. Economic effect of implementing the proposed recommendations was 4.1 mln. Novelty: 1. When building anchors with a lag from the bottom of the rock mass production of involvement in working with the frame support and the creation of the load-bearing shell is provided, if the size of the fracture formed rocks (FFR) is less than half the depth of anchoring. Then the fracture is transferred to the front outer boundary rock-shell anchor, thus loosening coefficient (kp) rocks within it does not exceed 1.02, and the total size of SoG reduced by 30-40% compared to the output of supported frames. 2. Established theoretically and experimentally confirmed that the allowable time gap between the recess and installing rock anchors consisting of frame-bolting is in power, depending on geological conditions of emplacement of production, its size and resistance to frame support. Thus, in circumstances where a width = 0,20-0,74 produce 4.8-5.0 m, repelling frame support 0.05-0.10 MPa this parameter ranges from 2.0 to 8.3 days. 3. TDS multilayer rock-anchor shell reinforced by different spatial patterns, which is part of the "frame - the shell of the fortified rock anchors", which describes the dependence of the dimensionless parameters, taking into account the external load, elastic parameters given rock-anchor shell, its size and physico-mechanical properties of rocks, allowing differentiated to calculate the parameters of the frame and roof bolting. The results of the work are used in the mine "Dobropolskaya". Industry Use: coal industry.