Dissertation > Excellent graduate degree dissertation topics show

Study on Control Technology of Settlement Caused by Metro Running Tunneling under Railway

Author: FengJiMeng
Tutor: ChouWenGe
School: Southwest Jiaotong University
Course: Bridge and Tunnel Engineering
Keywords: Running tunnel Ground surface settlement Centrifugal model test Numerical simulation Empirical formula Grouting reinforcement
CLC: U455.43
Type: Master's thesis
Year: 2009
Downloads: 59
Quote: 0
Read: Download Dissertation

Abstract


Tunnels in city subway project are constructed in the interior of rockmass.Driving of the tunnel will inevitably disturb the surrounding rock no matter how small the buried depth of the tunnel is. During the process of tunneling, the mechanical equilibrium state of the adjacent formation will change continuously. And also excavation will induce defomation of the adjaeent roek towards the free face known as convergence deformation which causes settling of ground simultaneously. On the other hand, distub of soil and discharge of underwater will induce consolidation settlement of ground as well. The problem of settlement of ground caused by construction of tunnel in city subway project is always an important research direetion.The running tunnel between Yatai Street and Weihuanggong, a part of Changchun light rail transitâ…¢project, will successively through the freight yard, Harbin-Dalian Railway, Changchun-Jinlin Railway, Changchun-Tumen Railway and other lines, and Harbin-Dalian Railway is for multiple unit operation, so the running tunnel have major responsibility for security. Settlement must meet the absolute value of surface subsidence and the level of deviation.There are two main problems regarding ground surface settlement that must be solved in this thesis.One is to caleulate and forecast the ground surface settlement induced by subway tunnel construction, the other is to propose the construction method by which the settlement of ground can be controlled efficiently.The ground surface settlement is forecasted by empirical formula method and centrifugal model test method in the theisi, at the same time the study on influence of the construction precipitation to ground surface settlement of the running tunnel. And the intial control method is proposed. In the last, the control technology of ground surface settlement is studied segmented by numerical simulation, and the control method of every segment is proposed. The results will provide reference for in-site construction.

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: > Transportation > Road transport > Tunnel project > Tunnel construction > Construction methods > Shield Law ( full- face excavation )
© 2012 www.DissertationTopic.Net  Mobile