Hydrology & Water Resources Engineering - Vol 3 | 50. Lining of Canals – Types of Lining – Advantages and Disadvantages by Abraham | Learn Smarter
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50. Lining of Canals – Types of Lining – Advantages and Disadvantages

Canal lining is a critical process aimed at reducing water seepage and enhancing hydraulic efficiency in man-made canal systems. The chapter discusses various types of canal linings, including rigid, flexible, and composite options, each with specific advantages and disadvantages. It emphasizes the importance of selecting appropriate lining materials based on factors like soil conditions, cost, and environmental impact, while also outlining the advantages and potential maintenance challenges associated with lined canals.

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Sections

  • 50

    Lining Of Canals – Types Of Lining – Advantages And Disadvantages

    This section discusses the various types of canal linings, their advantages and disadvantages, and the importance of canal lining in reducing water loss and improving efficiency.

    Learning Practice

  • 50.1

    Objectives Of Canal Lining

    This section outlines the primary objectives of canal lining, emphasizing its importance in preventing water loss and enhancing hydraulic efficiency.

    Learning Practice

  • 50.2

    Types Of Canal Lining

    This section discusses the various types of canal linings used to mitigate water wastage and enhance hydraulic efficiency.

    Learning Practice

  • 50.2.1

    Rigid Linings

    Rigid linings are impermeable canal linings made from hard materials like concrete, brick, and stone, designed to prevent water seepage and enhance hydraulic efficiency.

    Learning Practice

  • 50.2.1.a

    Cement Concrete Lining

    Cement concrete lining is a widely used type of rigid canal lining providing high impermeability and strength to reduce water loss.

    Learning Practice

  • 50.2.1.b

    Brick Lining

    Brick lining is an economical method of canal construction involving the use of bricks laid with cement mortar to prevent seepage and protect canals from erosion.

    Learning Practice

  • 50.2.1.c

    Stone Masonry Lining

    Stone masonry lining involves using cut or random rubble stones to line canals, particularly in areas where such materials are abundant.

    Learning Practice

  • 50.2.2

    Flexible Linings

    Flexible linings are adaptable canal linings that can adjust to minor soil movements, making them suitable for temporary or low-budget projects.

    Learning Practice

  • 50.2.2.a

    Compacted Clay Lining

    Compacted clay lining is a method of creating a dense, impermeable surface in canals using compacted layers of clay, which is cost-effective and locally available.

    Learning Practice

  • 50.2.2.b

    Bituminous Lining

    Bituminous lining involves applying bitumen or asphalt over a prepared surface to create a water-resistant layer in canals.

    Learning Practice

  • 50.2.2.c

    Plastic Membrane Lining (Ldpe, Hdpe, Pvc)

    Learning

  • 50.3

    Composite Linings

    Composite linings in canals combine two or more materials to optimize performance and reduce seepage.

    Learning Practice

  • 50.4

    Advantages Of Canal Lining

    Canal lining significantly enhances water efficiency, flow conditions, and reduces maintenance costs.

    Learning Practice

  • 50.5

    Disadvantages Of Canal Lining

    Canal lining, though beneficial, has several drawbacks including high costs and potential maintenance challenges.

    Learning Practice

  • 50.6

    Criteria For Selecting Canal Lining

    The selection of canal lining type is influenced by various factors including soil characteristics, hydraulic requirements, and cost.

    Learning Practice

  • 50.7

    Design Considerations For Lining

    This section outlines the essential design considerations for lining canals, focusing on hydraulic and structural aspects to enhance their performance.

    Learning Practice

References

Chapter_50_Linin.pdf

Class Notes

Memorization

What we have learnt

  • Canal lining reduces seepag...
  • Various types of canal lini...
  • Several factors must be con...

Final Test

Revision Tests