Course Details
Subject {L-T-P / C} : CE4401 : Irrigation Engineering { 3-0-0 / 3}
Subject Nature : Theory
Coordinator : Dr. Minakshee Mahananda
Syllabus
Module I: Introduction:
Necessity of irrigation, scope of irrigation engineering, benefits and ill effects of irrigation, irrigation development in India, types of irrigation systems, Classification- choice of method of irrigation- surface and subsurface irrigation methods, Sprinkler and Drip Irrigation.
Module II: Water requirements of crops:
Soil-water plant relationship: Classification of soil water- soil moisture contents- depth of soil water available to plants- permanent and ultimate wilting point, Depth of water applied during irrigation- Duty of water and delta improvement of duty- command area and intensity of irrigation consumptive use of water and evapotranspiration- irrigation efficiencies- assessment of irrigation water
Module III: Design of Irrigation Channel:
Alignment- canal capacity- losses- FSL of canal- design of canal in alluvial soil and non alluvial soils- Kennedy’s silt theory- Lacey’s regime theory- use of Garrets diagrams and Lacey’s Regime diagrams- lining of irrigation channels- design of lined canal drainage.
Module IV: Water logging:
Causes, Measures: surface and sub-surface drains, land reclamation
Module V: Diversion head works:
Types- selection of the suitable site for the diversion headwork components of diversion headwork- Causes of failure of structure on pervious foundation- Khosla’s theory- Design of concrete sloping glacis weir
Course Objectives
- To take up the basic concepts of irrigation and construction of various hydraulic structures
- To introduce students to basic concepts of water, plants, their interactions, as well as irrigation and drainage systems design, planning and management.
- The structures involved the elementary hydraulic design of different structures and the concepts of maintenance shall also form part.
- To develop analytical skills relevant to the areas mentioned above, particularly the design of irrigation and drainage projects.
Course Outcomes
.CO1. Concepts of irrigation and different hydraulic structures. <br />CO2. How to estimate the quantity of water required by crops? <br />CO3. Be able to plan and design irrigation projects. <br />CO4. Design channels and other irrigation structures required for irrigation, drainage, soil conservation, flood control and other water-management projects.
Essential Reading
- Modi, P.N., Irrigation Water Resources and Water Power Engineering, Standard Book House, New Delhi.
- Garg, S.K., Irrigation Engineering and Hydraulic Structures, Khanna Publishers, New Delhi.
Supplementary Reading
- Punmia, B.C., and B.B. Pande, Irrigation and Water Power Engineering, Laxmi Publication Pvt. Ltd., New Delhi
- Dilip Kumar Majumdar, Irrigation Water Management, Prentice-Hall of India, New Delhi