Dissertation > Excellent graduate degree dissertation topics show

Study on Sediment Movement and Scouring Deformation Scouring Deformation of Central Bar before/after Being Protected

Author: WangWeiFeng
Tutor: WangPingYi
School: Chongqing Jiaotong University
Course: Hydraulics and River Dynamics
Keywords: central bar beach protection construction of the central bar riverbed evolution sediment-carrying capacity of flow movable resistance roughness
CLC: TV142
Type: Master's thesis
Year: 2009
Downloads: 84
Quote: 2
Read: Download Dissertation

Abstract


The water sediment monment regularity of the middle reach of the central bar of Yangtze River are verycomplex,especially the navigation problems are prominent,which have become the“bottle-neck”of restring the development of navigation.The beach protection construction can be used to protect the central bar in the aim of changing the situation, recovering and improving the channel conditions.So studying the sediment moment redularities and the scouring deformation characteristics of the central bar portected by a beach protection construction or not,has an important theoretiacl meaning and practical value.This paper was carried out from the western communication construction project of the research on the key techniques in the protection of the central bar projection in the middle reach of the Yangtze river. Based on the analysis of the evolution of the typical reach of the central bar,the experiment of the flume generalized model was carried on,relied on the Sanba beach of Shashi.And the sedimoent moment regularity and scouring deformation characteristics are studied systemtically when the central bar is unprotected and protected by the software platoon beach protection belt, triargular pyramid permeable frame and the fish-bone dam project.Through the theoretical analysis and model experiment, the central bar and riverbed scouring deformation regularity are discussed in detail with the central bar protected or not; it is given that the reguarity of streamwise variation of the sediment-carrying capacity of flow and the movable bed resistance on the bar and the braided reach,and the result of comparing with the sediment-carrying capacity of flow and the movable bed resistance is analyzed.The software platoon beach protection belt and the triargular pyramid permeable frame will enlarge the roughness of the central bar by calculating the beach face roughness of the central bar protected and unprotected.This paper points out the advantages and the disadvantages of the three kinds of construction, the software platoon beach protection belt,the triargular pyramid permeable frame and the fish-bone dam project, used at the central bar which are analyzed as a whole.The resluts of this paper could be appolied not only to the channel improvement project directly on the middle and lower course of Yangtze River,but also to those of other rivers.Meanwhile,they can enrich the content of channel improvement subject.

Related Dissertations

  1. Simulation and Experimental Study on the Scattering Properties of Two Dimensional Rough Surfaces,TP391.41
  2. The Effect of Different Microwave Polymerizations on Accuracy and Physical Properties of Denture Base Resin,R783.6
  3. Comparison of the Physical and Mechanical Properties Among Four Kinds of Die Stone Casts,TQ177.3
  4. Psychoacoustic parameters of algorithms and programming,TP311.1
  5. Nuclear Power Plant Steel Milling Surface Integrity Study,TG54
  6. Transparent substrate surface scattering and volume scattering studies,TH74
  7. ABS -based high-speed milling of aluminum hydraulic valve Processing Research,TG54
  8. Nickel microlens array mold core micro electroforming process and surface quality,TH74
  9. Research on Image Segmentation Based on Rough Set Theory,TP391.41
  10. The Analysis of Momentum Fluxes and Marine Atmospheric Boundary Turbulence Characteristics,P732
  11. Substrate Surface alloying coating microstructure and properties of hot dip galvanized sheet,TG174.44
  12. An Investigation into the Precision Micro-hole Enlargement by Using Electrochemical Grinding,TG662
  13. Effect of the Rubbing and Wearing Behavior of Steel Rail by Ultrasonic Peening,TG115.58
  14. Research on Key Technologies of Three-dimensional Surface Roughness Measurement,TG84
  15. The Multi-parameter Disquisition of High-speed Grinding Which Is Based on Minimum Quantity Lubrication Cooling Method,TG580.6
  16. Experimental Study on Basic Mechanical Properties of Domestic Carbon Fiber Renforced Plastic,TB332
  17. Automotive engine piston pin anti- friction and wear properties of,U464.13
  18. Influence of Surface Roughness on Gold Alloy and Ni-Gr-Ti Alloy on Adhesion Bacteria,R783
  19. Influence Research of the Different Expansion Coefficient Plaster Cast Material on Resin Denture Accuracy and Physical Properties,R783.6
  20. A Study on Hairy Pads of Drosophila Melanogaster and Its Adhesive Force on Touched Surfaces with Different Roughness,Q811
  21. Research on Speckle Suppression in Laser Micro-Projector,O436

CLC: > Industrial Technology > Hydraulic Engineering > The basic science of water resources project > Sediment dynamics, River Dynamics > Sediment movement
© 2012 www.DissertationTopic.Net  Mobile