Dissertation > Excellent graduate degree dissertation topics show

Research on Prediction and Prevention About Rock Burst in Stress Concentration Region of Dongtan Coalmine

Author: LuJiaBin
Tutor: ChenXueHua
School: Liaoning Technical University
Course: Mining engineering
Keywords: Rockburst RFPA software Numerical Simulation Regional projections Drilling relief
CLC: TD324
Type: Master's thesis
Year: 2009
Downloads: 120
Quote: 0
Read: Download Dissertation

Abstract


Mine dynamic disaster has been the difficulty of pressure prevention study of rock mechanics and mining . Rockburst as the the mine most serious one of the dynamic phenomena , from the theoretical to the prevention and treatment are not yet fully resolved . The stress concentration caused by underground mining increases the risk of shock pressure . Dongtan coal mine 14,309 ( West) fully mechanized caving face in a high stress concentration area , it is very necessary to the need exists rockburst disaster governance and how prevention research . In this paper, the theoretical analysis experience in analog and stress analysis determined comprehensively 14309 ( West ) face the risk of moderate impact of high stress coal pillar area . Comprehensive index method and RFPA software method of numerical simulation results show that , when the contact Lane and rail Shun coal pillar size 10 ~ 30m , from weak to moderate impact hazard . According to the production conditions of the working face , the the application medium diameter drilling relief measures , the construction is more flexible , fast . Take cuttings combined with rigorous electromagnetic radiation instrument detection measures , the implementation of a large number of detection work , confirmed that no shock hazard , ensure the safe production , the relief effect . Application of electromagnetic radiation instrument also detected a significantly higher detection indicators when in the face of the roadway cross and Stop Line , these lots are shocks or roadway instability danger zone . Face NF21 fault , the formulation and implementation of specialized technical measures , so that the stoping the work to proceed smoothly . Face NF21 fault stop mining face withdrawal of maintenance conditions , and to avoid a shock hazard , the stopping line under similar conditions leaving in basis . Through this thesis , to ensure 14309 ( West ) face contact Lane the near face stopping line high stress coal pillar area and NF21 fault production safety , security stoping a lot of coal , the larger social and economic benefits.

Related Dissertations

  1. The Setting Bases of Working Pressure in LNG Systems and Orthogonal Experiment Design of Heat Exchangers,TQ051.5
  2. Study on Springback of High-Strength Steel Stamping,TG386
  3. Numerical Simulation and Experiment on Hydroforming of Cups with Controllable Radial Pressure,TG386
  4. Research on Technology and Mechanism of Joining Cemented Carbide to Carbon Steel,TG454
  5. Numerical Simulation of Film Cooling in Turbine Cascade with Non-Axisymmetric Endwall Method,V231.3
  6. High Speed Aerodynamic Convection and Coupled Heat Transfer of Complicated Bodies,V215.4
  7. The Analysis on Characteris of Vibration Source about Vertical Vibration of Surrounding Environment Induced by Rail Transit,U211.3
  8. Study on the Heat Transfer Characteristics of Particle Cluster in Circulating Fluidized Bed,TK124
  9. Numerical Simulation of SNCR Process of a 600MW Utility Boiler,TK222
  10. Numerical Simulation of Biomass Direct Reburning,TK16
  11. Numerical Simulation on Pulverized Coal Combustion Process in a 670T/H Tangential Firing Furnace,TK224.11
  12. Numerical Simulation on the Combustion Process in the Furnace of a 1000MW Lignite-Fired USC Boiler,TK224.11
  13. Study on Gas-Solid Two-Phase Flow in Spouted Beds,TK173
  14. Experimental Study and Numerical Simulation on Aerodynamic Field of Tangential Bias Swirl Burner,TK223.23
  15. Characteristic Study of Combustion in Central Reverse Flame Chamber,TK223.21
  16. Numerical Simulation and Contrastive Analysis of Labyrinth Seals and Leaf Seals,TK263.2
  17. Numerical Study on Phosphorus Distribution in Water Environment of the Three Gorges Reservoir,X832
  18. The Design and Performance Simulation of External Valve Small Displacement Pump,TE933.3
  19. Analysis of the Impact of Tailings Dam Stability under Seepage Role,TV649
  20. Study on Hydraulic Fracturing of Low Permeability Reservoir,P618.13
  21. Numerical Simulation and Experimental Study of Air-Assisted Sprayer of Orchard,S491

CLC: > Industrial Technology > Mining Engineering > Mine the pressure and support > Rock pressure and rock movement > Rockburst
© 2012 www.DissertationTopic.Net  Mobile