DESIGN OF IRRIGATION CANAL

 

BY

 

LIM TZE CHAO

 

ABSTRACT

 

            The main purpose of this project is to provide an overall basic and main information of designing an Irrigation Canal.

 

            From the introduction, Purpose of Irrigation is clearly defined, and the used of irrigation in Malaysia also briefly describe in this part. Besides, basic consideration needed before designing an irrigation canal is clearly describe on Irrigation Requirement.

 

            While in the methods of design, types of canal is divided into two parts, and methods are as shown below:

 

1.         Lined @ nonerodible canal

Ř      Manning’s equation method

Ř      Cost direct algebraic method

 

2.         Unlined @ erodible canal

Ř      Method of permissible velocity

Ř      Method of tractive force

 

            Besides this project can guide you throughout the procedure of designing an irrigation canal.

 

            In calculation parts, Trapezoidal and rectangular lined canal is being design for the used of paddy irrigation. Meanwhile trapezoid unlined canal is being design for the used of oil palm and fruits estate irrigation.

 

            Furthermore, the HYDROCALC Hydraulic program for windows is introduced at Appendix, and this program can able to solve computation for canal design, such as normal depth, critical depth, maximum permissible velocity and others.

 

            After reading this project, the reader will have a better understanding the used the irrigation canals. As a canal designer, this project can be served as references or guidelines in further information and modification.

 

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Diploma in Civil Engineering

August 2000

Number: 1 – 3