Dissertation > Excellent graduate degree dissertation topics show

Study on Fluid-Particle-Lining Efect and Sand Liquefaction under Vibration Load of High Speed Railway

Author: DaiLinFaBao
Tutor: GaoBo
School: Southwest Jiaotong University
Course: Bridge and Tunnel Engineering
Keywords: High-speed rail Sand Liquefaction Shield Tunnel Fluid-structure interaction
CLC: U451
Type: Master's thesis
Year: 2011
Downloads: 73
Quote: 0
Read: Download Dissertation

Abstract


In the past decades , the high-speed rail for high-speed development in the countries of the world . As the train speeds increase , however , the high-speed train -induced environmental vibration problem has become particularly prominent . On the one hand , improve train speed train vibration loads will inevitably cause further increase , which put forward higher requirements on the dynamic stability of the tunnel structure . On the other hand , when the train operation , the load of train track - the tunnel structure spread to the surrounding soil , when the tunnel surrounding rock is saturated sands , the high-speed train vibration of saturated sand liquefaction , resulting in destruction of the tunnel structure , at the same time endanger the safety of the train running . The shield tunnel dynamic response of train vibrations therefore, important to the safe operation of the tunnel . In this paper, the Guangzhou-Shenzhen- Hong Kong Express Rail Shiziyang tunnel train vibration research projects , of Shield Tunnel train vibration dynamic response numerical simulation analysis , mainly includes the following research : (1) on the basis of previous studies , according to the train - rail system model , beam and plate models , analysis of the high-speed train by Ballastless track rail fulcrum pressure -time curve , load response for the three - dimensional tunnel train vibration power analysis provides an external stimulus . Sandy soil liquefaction mechanism and characteristics to determine the general guidelines of the judgment in the calculation and analysis process of sand liquefaction . (2) using numerical simulation to train vibration dynamic response on whether to consider groundwater impact study , train vibration problems come with groundwater must be taken into account fluid-structure interaction , and then for the same time the number of vehicles entering the tunnel , the rock mass parameters , tunnel depth of different response shield Tunnel train vibration power system study , analysis summary of the corresponding parameter changes affect the response of shield tunnel train vibration power law . (3) to shield tunnel entrance of the Guangzhou-Shenzhen -Hong Kong Express Rail Link Shiziyang as the prototype , create a detailed 3D analysis model from the single-column train through the tunnels and trains will cross through the tunnel two typical conditions , a high-speed train vibration segment under the settlement, the role of water - soil interaction and the possibility of sand liquefaction

Related Dissertations

  1. The Surrounding Rock Monitoring and Finite Element Simulation of Subway Tunnel,U455.43
  2. Numerical Simulation of Flow Field in Mixing Flow Pump of Double Volute and Dynamic Characteristic Analysis for the Impeller,TH313
  3. Research of Optimal Design of Power System in High Speed Railway,U223
  4. Study on the Strategies of Building High-speed Railway Urban Spatial Form and Landscape Architecture in the General Areas of High-speed Rail Site,TU984.113
  5. Study on the Strategies of Fujian Province Motorway Passenger Transport Vs Highspeed Rail Transport,F542
  6. The Anti-Doppler Technology of LTE Downlink System in High-Speed Railway Scenario,U285
  7. Applicability of Asset-Backed Securitization in High-Speed Railway Construction,F530.68
  8. High metal box beam template trolley finite element analysis,U445.3
  9. Research on Construction Control and Shrinkage Creep Effect of High-speed Railway PC Continuous Beam Bridge,U445.57
  10. Research on Structural Vibration of Steam Piping System,TK284.1
  11. Factors affecting China 's high-speed rail hub station area development and function of the type of research,U291
  12. Laboratory Experimental Study on Characters of CFG Pile Composite Foundation of High-Speed Rail Way,U213.1
  13. The Research on Quality Evaluation System of the Inter-City High-Speed Railway Passenger Transportation Services,U293.1
  14. Research on Key Mechanical Characteristics of Microchannel Hydrogen Sensor,TP212.2
  15. Study on Using Performance of Crts-Ⅱ Type Cement Asphalt Mortar and Its Influencing Factors,U214
  16. Filed Research on Settlement Characters and Construction Technology of Ram-Compaction Piles with Composite Bearing Base in High-Speed Railway,U213.15
  17. Numerical Simulation of the Tunnel Entry/Exit Wave When a Train Enter/Leave a Tunnel Based on the Model of Revolution,U451.3
  18. Soft Soil Roadbed Settlement Monitoring and Stability、 Deformation Analysis,U416.12
  19. Study on the Substrate Processing System on Beijing -Shanghai High Speed Railway Bridge Polyurea Project,U444
  20. Damage Idengtification and Work Performance Evaluation of High-Speed Railway Bridges Based on Dynamic Response,U441.4

CLC: > Transportation > Road transport > Tunnel project > Tunnel structure theory
© 2012 www.DissertationTopic.Net  Mobile