OPTIMAL CONTROL OF SEDIMENTATION IN NAVIGATION CHANNELS

Many hydraulic engineering projects concern the control of sedimentation. For some large engineering projects, such as construction of a navigation channel over many kilometers in a shallow estuary, comprehensive control of sedimentation is extremely costly. An optimal-control approach is presented. It determines optimal locations and scheduling of dredging to minimize total cost and to obtain a channel where water depths are not less than specified values. The optimal-control problem is formulated and a method is developed. The optimization problem is solved by the conjugate gradient method, and the gradient of the cost function is calculated by solving the adjoint problem. A simulation study is conducted using a two-dimensional numerical model to demonstrate the method. The significance of the adjoint problem is also illustrated in sensitivity analysis experiments.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/8672558
• Supplemental Notes:
  • This study is supported by the Chinese Academy of Sciences, Beijing, China, through the 9-5 Research Key Project and Natural Science Foundation of China, under contract number 49776283.
• Corporate Authors:

  American Society of Civil Engineers

  1801 Alexander Bell Drive
  Reston, VA  United States  20191-4400
• Authors:
  • Zhu, Jinying
  • Zeng, Qiongfang
  • Guo, D
  • Liu, Z C
• Publication Date: 1999-7

Language

• English

Media Info

• Features: Appendices; Figures; References; Tables;
• Pagination: p. 750-759
• Serial:
  • Journal of Hydraulic Engineering
  • Volume: 125
  • Issue Number: 7
  • Publisher: American Society of Civil Engineers
  • ISSN: 0733-9429
  • Serial URL: https://ascelibrary.org/journal/jhend8

Subject/Index Terms

• TRT Terms: Channels (Waterways); Construction; Control; Dredging; Hydraulics; Mathematical models; Navigation; Optimization; Sedimentation; Sensitivity analysis; Simulation
• Uncontrolled Terms: Conjugate gradient method
• Subject Areas: Construction; Marine Transportation; Operations and Traffic Management;

Filing Info

• Accession Number: 00766177
• Record Type: Publication
• Contract Numbers: 49776283
• Files: TRIS
• Created Date: Jul 12 1999 12:00AM