Dissertation > Excellent graduate degree dissertation topics show

The Dynamic Response Analysis of Shield Tunnel on Soft Soil Foundation Exposed to High-Speed Train Vibration Excitation

Author: LiuYu
Tutor: GaoBo
School: Southwest Jiaotong University
Course: Bridge and Tunnel Engineering
Keywords: high-speed railway tunnel structure train vibration sand liquefaction dynamic analysis
CLC: U451.3
Type: Master's thesis
Year: 2011
Downloads: 113
Quote: 0
Read: Download Dissertation

Abstract


While the technology of high-speed railway gradually approaching mature under the circumstance of high-speed railway developing globally and soar development of high-speed railway construction in domain, the problem caused by vibration of railway communication became prominent. For serving economy growth by connecting the major cities located in Yangtze River delta, Pearl River delta and etc, railway tunnels frequently embedded in thick soft soil as saturated clay or unconsolidated sand. Exposed to train vibration excitation, pore pressure suddenly soar and dissipation delayed due to blocked drainage of surrounding clay, which finally lead to liquefaction and shear strength loss, tunnel subsidence, infected smoothly running and comfort of passenger even the safety of railway transportation.The analysis of this dissertation combined the train vibration and sand liquefaction. First, discussing mechanism of high-speed train vibration based on reviewing relevant subway research, artificially numbered excitation force is applied to the track simulated as unlimited Euler-Bernoulli beam to gain the reaction force of track supporting platform of ballastless track structure via calculation. Then this force is exerted to tunnel-ground model to calculated analysis. Combining dynamic consolidation theory of saturated soil and using Finn-Seed model, according to fluid-solid coupling situation of water-soil undergoing vibration induced by high-speed train, this dissertation respectively analyzed‚φdynamic response of shielded tunnel and the feature of ground stress and pore press distribution;‚Ď°dynamic response of tunnel structure, variation of stress field and the stimulation and diffusion of pore pressure tolerating long-term cyclic high-speed train load.

Related Dissertations

  1. The Study of Dynamic Simulation of the Passive Dynamic Quasi-Quarupedal Walker,TP242.6
  2. The Effectr of Lactic Acid Bacteria and Rice Bran on Dynamic Change of Rice Straw Silage Fermentation,S816.53
  3. Isolationand Identification of Porcine Parvovirus and Parts of Its Biological Characteristics,S852.65
  4. Research on the Revenue Distribution of PPP Mode about High-speed Railway Project,F283
  5. Study of Static and Dynamic Collaborative Optimization on Container Ship Structure,U674.131
  6. Monitioring of Mechanics Properties of Geogrid-Reinforced and Pile-Supported Embankment in Chaoshan Station,TU470
  7. Study on Mechanical Characteristic of Rubber Spring Used in Vibrating Screen,O322
  8. Study on Spatial Development Patterns and Planning Countermeasures of "high-speed Railway New Town" Along Beijing-Guangzhou High-speed Railway,TU984.113
  9. High - speed railway bridges mitigation and isolation,U442.55
  10. Research on the Square RAM Deformation Processing and Compensation,TG548
  11. The Structural Influencing Coefficient of Steel Frames in Different Site,TU391
  12. Research and Development on Structure Design System of Railway Tunnel,U451
  13. Two-dimensional dynamic analysis of high-speed railway tunnel structure program R \u0026 D,U451
  14. The Research and Pracice of Jiangxi Unicom GSM High-Speed Rail Coverage Solusion,TN929.532
  15. Study on the Integration of Large High-Speed Railway Passenger Station and Station Square,TU248.1
  16. The Research for Safety Monitoring and Warning Criterion of Metro Tunnel Crossing the Ground Fissure Zones,U456
  17. Study on Fluid-Particle-Lining Efect and Sand Liquefaction under Vibration Load of High Speed Railway,U451
  18. Study on Fuzzy Comprehensive Evaluation of Structural Safety of Highway Tunnel in Meizoseismal Area,U452.28
  19. Research of Prediction Method for Subgrade Foundation Post-construction Settlement on High-speed Railway,U213.157
  20. Low Vibration Design Analysis of Diesel Engine Block Based on the Virtual Technology,TK422
  21. Dynamic Analysis of Motorized Spindle and Software Development,TG659

CLC: > Transportation > Road transport > Tunnel project > Tunnel structure theory > Train passing through the affected
© 2012 www.DissertationTopic.Net  Mobile