Dissertation > Excellent graduate degree dissertation topics show

Study on the Reasonable Sealing Hole Depth of 3# Coal Seam Gas Drainage Boreholes in Zhaozhuang Mine

Author: ShangQun
Tutor: SunYuNing
School: Henan Polytechnic University
Course: Mining engineering
Keywords: Gas drainage Sealing depth Drilling bits Concentration
CLC: TD712
Type: Master's thesis
Year: 2010
Downloads: 206
Quote: 2
Read: Download Dissertation

Abstract


Gas drainage is an important means of gas control , rely mainly on gas drainage drilling and sealing , sealing is an important part of the gas drainage , sealing depth for gas drainage has an important influence . Through access to large amounts of literature , a comprehensive analysis of influencing factors of gas drainage drilling sealing depth and Lane to help the state of stress distribution relationship , derived gas drainage drilling sealing depth seam relief with Lane Gang must pass through to enter the with stress concentration . For different the mine geological conditions under the coal seam , we must first calculate the Lane help coal seam relief with stress concentration with the range , in order to accurately determine the reasonable sealing gas drainage drilling depth . Zhao Mine # 3 coal seam roof and floor of coal and rock samples the parameters of the physical and mechanical properties of the test , using FLAC3D numerical simulation software to simulate tunnel excavation combined the cuttings law field test to determine the the tunnel plastic zone and stress concentration with the range , with the industrial trials were analyzed , to finalize the test area where the depth of the coal seam reasonable sealing a depth of 8 ~~ 10m .

Related Dissertations

  1. Effects of Light, Temperature and Nitrogen on the Growth of Three Kinds of Aquatic Plants,Q945
  2. Effects of CO2 Concentration and Nitrogen Application on Grain Yield, Quality Formation and Their Physiology Mechanism in Winter Wheat,S512.1
  3. The Research on the Physiological Mechanism of the Subtending Leaf Nitrogen Concentration Impacting the Strength Formation in Cotton (Gossypium Hirsutum L.) Fiber,S562
  4. Treatment of High Concentration Oil-Bearing Wastewater in Food Industry with Membrane Biofilm Reactor (MBR),X792
  5. Concentration and Impact Factors of Typical VOCs in Indoor Air in Hangzhou,X51
  6. Pharmacokinetics of Progesterone Cream in Beagle Dogs Determined with LC-MS/MS,R96
  7. Optical Properties of Chlorphyll-a in Reservoir Water and Its Concentration Inversion Models by Remote Sensing,S127
  8. Cefotaxime on intracellular calcium ion transmembrane BEHAVIORS,R96
  9. China's construction market competition mechanism,F284
  10. High glucose in human umbilical vein endothelial cells expression of renin precursor,R543.5
  11. Study on Yiyuan Mine’s Gas Disaster Prevention Technology,TD712
  12. The Protective Effect and Mechanism of Trehalose in Sternum Cryopreservation,R318.52
  13. Study on Gas Prevention and Control Technology at Fully Mechanized Caving Face of Liujia Coal Mine,TD712
  14. Research on Influence Factors on Metal Fatigue Strength,TG115.57
  15. Ownership Structure and annual information correction Relationship,F832.51;F224
  16. Polymer micro- thermoforming key technology research,TQ320.66
  17. Research on Over-investment Behavior and Corporate Governance Mechanism,F224
  18. Study on Hydraulic Optimization of Xuecheng Xiaoshahe Constructed Wetland,TV135
  19. Research on Similar Simulation of Gas Drainage Technology on Mining Face and Fire Prevention in Gobs,TD752.2
  20. Anyang Iron and Steel Group's acquisition of Strategic Studies,F426.31
  21. Gas chromatography detected humidity of SF_6,TQ117

CLC: > Industrial Technology > Mining Engineering > Mine safety and labor protection > Mine atmosphere > Mine Gas
© 2012 www.DissertationTopic.Net  Mobile