Dissertation > Excellent graduate degree dissertation topics show

Project Construction Model and Standard of Subsurface Pipe Drainage in Southern China

Author: FangRui
Tutor: ZhouMingYao
School: Yangzhou University
Course: Hydraulic Engineering
Keywords: sub-drain pipe drainage suitability evaluation arrangement mode projectconstruction standards depth Spacing combination of drainage
CLC: S277.5
Type: Master's thesis
Year: 2013
Downloads: 34
Quote: 0
Read: Download Dissertation


Sub-drain pipe drainage is technical measures making use of dark and ditch to get rid of extra water in the fields. Compared with gutter drainage, it can decrease cultivated land occupation, improve land utilization rate, increase control area of the open trench and is beneficial to mechanical tillage without grass and collapse problem. It also takes advantages of easy management, labor saving, which is with few earthwork and easy for mechanical operation, etc. In south China, there are more people and less land, the economics are advanced with good technical conditions but few managers. The promotion of sub-drain pipe drainage technology can effectively improve the present situation of irrigation and water conservancy.In this paper, the research and application situation of sub-drain pipe drainage at home and abroad were reviewed. Combination method of comparative analysis, theoretical analysis and empirical analysis was taken to research the suitability evaluation, engineering layout, engineering construction standard and optimization of drainage project planning and design, the main results were as follows:(1) Through systematic research of sub-drain pipe drainage works in south China, appropriate contestant factors were selected, and then graded and evaluated with exponential numbers. Delphi method was adopted to determine the weight of the evaluation factors and to assess suitability grades, eventually to establish sub-drain pipe drainage engineering suitability evaluation index system in south China. Combined with project cases, to evaluate weather sub-drain pipe drainage works was suitable for development in a certain area.(2) Through influence factor analysis of sub-drain pipe drainage system’s composition and layout pattern and study of construction type region, the sub-drain pipe drainage layout mode of different areas in south China was determined.(3) By the construction of engineering construction standards for sub-drain pipe drainage system, the project construction standards such as drainage technology standards, farmland flood control standards, grid field standard, Suction piping construction standards, Collecting piping construction standards, auxiliary projects construction standards, vented area projects construction standards and drainage project management standards that were suitable for sub-drain pipe drainage in south China were researched.(4) Through study of sub-drain pipe’s material, filter, depth and spacing, diameter, slope and the auxiliary projects, sub-drain pipe drainage project investment estimation model was established with the target of minimum cost of per unit area. Mathematical programming method was adopted to determine the optimal space and depth for sub-drain pipe drainage system.The results of this paper can deepen the understanding of sub-drain pipe drainage technology, and provide scientific basis for regulating technology activities, promoting technical promotion and regional water conservancy modernization.

Related Dissertations

  1. Study on the Improvement Depth of Dynamic Consolidation by Methods of Mathematical Physics,TU472.31
  2. Effects of Cultivation Methods and Row Spacing on Yield Formation and Proportionality of Ningjing 3,S511.22
  3. The Influence of Anesthesia Depth on the Brain Injury during Cardiopulmonary Bypass,R614
  4. Ansai Oilfieid Development Later Period, Adjust and Optimize Technology Well Network Research,TE324
  5. Correlation of Branch Retinal Vein Occlusion and Ocular Axial Length、 Anterior Chamber Depth,R774.1
  6. Face floor hydrous mine water inrush prediction techniques to detect and study,TD745
  7. Research of Millimeter Wave Radar Depth Indicator for Mine,TD534.6
  8. Discussion on the Classical Chinese Biography Reading Development Character Analysis and Teaching Practice,G633.3
  9. Capacity of small chemical anchor spacing,TU746.3
  10. Land Suitability Evaluation and Cost-effectiveness Analysis of Reclamation of Silica Sand Mine,F301
  11. Technology Application of Deep Hole Presplitting Blasting to Improve the Efficiency of Gas Extraction in Liyazhuang Mine,TD712
  12. Experimental Study on the Effect of Vertical Fluctuating Pressure on the Entrainment of Fluid Mud,TV14
  13. Digital camera motion control and reverse engineering applied research,J931
  14. Research on the SPR Sensor of Metal Grating,TP212
  15. Depth map and color images based on treadmill game interaction system,TP391.41
  16. Fusion depth map and 3D models of human motion capture technology research,TP391.41
  17. ' Chinese crispy ' apple fruit traits observed juicing Identification and Evaluation of Suitability,S661.1
  18. The Research on Pattern of Urban Road Layout and Micro Land Use,U412.37
  19. Security Technology Research on Restricted Exit of Interchange for Expressway,U492.8
  20. Study on Gas-geology Law and Gas Forccaatingin Hexhuang Coal Mine,TD712
  21. Study on Grind-Hardened Layer and Its Uniformity,TG580.64

CLC: > Agricultural Sciences > Agricultural Engineering > Irrigation and water conservancy > Irrigation and drainage > Underground irrigation and drainage
© 2012 www.DissertationTopic.Net  Mobile