Dissertation > Excellent graduate degree dissertation topics show

Elastic Plastic Finite Element Numerical Analysis for Reinforcing High-Slope of Road Base

Author: YangChaoZhu
Tutor: LuYang
School: Southwest Jiaotong University
Course: Road and Railway Engineering
Keywords: Rock slope Site construction monitoring Elastic-plastic finite element Numerical Simulation
CLC: U418.5
Type: Master's thesis
Year: 2005
Downloads: 353
Quote: 3
Read: Download Dissertation

Abstract


Geotechnical slope stability is controlled by the body's basic characteristics and the degree of anthropogenic transformation of two factors. As the complexity of the geological body, variability and not homogeneous, and thus roadworks slope design is predictive of risk of the design. Practice has proved that such analysis method properly, using the finite element method can be carried out on the slope during construction dynamic simulation, design and construction on the slope of great guiding significance and economic significance. This paper analyzes the State Road 318 Erlang to Rebuild Project K2791 690 ~ 830 Kangding segment rock slope site construction monitoring data, on this basis, the use of commercial software ANSYS, apply plastic finite element theory, the slope from the excavation reinforcement to anchor the entire construction process numerical simulation. Simulation, combined with the actual situation, the K2791 is divided into high slope collapsed areas and normal areas in different regions at different construction stages of rock deformation, stability of doing comparative studies, the horizontal displacement of the downslope to change as the slope deformation mainly on the factors, slope stability through the Drucker-Prager yield criterion to reflect the value of the yield function, search out the yield function value is greater than zero unit area yield drawn, thereby evaluate slope stability. Finally, the combination of on-site monitoring results will be calculated and monitored values ??were analyzed. Simulation results show that: the surface rock excavation area downslope collapse prompted moves outward from the top of the hill to the foot of the slope to form a wide range of continuous yielding areas in the entire excavation process, yield very small changes in the scope, if you do not follow up style timely support, is likely to induce a considerable scale slope collapse zone partial collapse; while anchoring process significantly reduced the slope of the yield region, the rock downslope move inward, thereby contributing to the stability of the slope. According to the simulation results, regardless of excavation or anchoring, are conducive to the stability of the slope normal region, where the anchoring effect is more obvious. Contrast deformation trends, the report calculated results with field monitoring data are more consistent, which show that the use of finite element modeling and analysis approach is feasible, may be better for the steep embankment deformation in the construction process, the steady state to be simulated; The preparatory work for the establishment of a numerical model can be used as reinforcement measures and further study the combined effects of slope rock foundation, which has important reference value. Research papers on the slope monitoring, design and construction has a certain significance, and is a similar type of high rock slope provides some numerical simulation calculation and analysis methods for reference.

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. On the Simulant Research of the Pneumatic Cleaning Mechanism of Mini-combine Harvester,S225.3
  21. Fault combinations on water inrush and Its Prevention Research,TD745

CLC: > Transportation > Road transport > Road works > Road maintenance and repairs > Conservation and maintenance of the roadbed
© 2012 www.DissertationTopic.Net  Mobile