PWODS301: Drainage Structures Construction

Section outline

• Select section Course Overview

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  Course Overview

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  Introduction

  Water is the main contributor to the wear and damage of low-volume rural roads. The water can be in the form of ground water, surface water (streams and rivers) or rain and it can damage the road in several ways:

  • by washing away, the soil (erosion and scouring),

  • by making the road body less resistant to traffic (i.e. weakening the load bearing capacity),

  • by depositing soils (silting) which may obstruct the passage of water

  • by washing away entire sections of the road or its structures.

  If water is allowed to enter the structure of the road, the pavement and subgrade will be weakened, and it will be much vulnerable to damage by traffic. Damage and wear to the road can be reduced if the flow of water is controlled by providing drains. The major and the only perfect way of protecting the road from damage is to provide a well-constructed drain.

  This module describes the skills, knowledge and attitudes required to perform the construction of drainage structures. It is intended for learners who are pursuing level 3 in public works.
  

  At the end of this module, learners will be able to prepare the work, excavate the trench, construct drainage system structures and apply erosion control methods. Qualified learners deemed competent to this competency shall have the ability to take responsibility for the carrying out of a range of defined activities in Public Works under non- directive supervision.

  
  

  
  

   Source: Internet

  Learning Objectives
  

  Upon completion of the module, the trainee will be able to :

  • Prepare for work.
  • Excavate trenches.
  • Construct drainage system structures.
  • Apply erosion control method and cleaning workplace.
    

  
  

  • Select activity Announcements

    

    Announcements Forum
• Select section General Introduction

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  General Introduction

  • Select activity Introduction

    

    Introduction Interactive Content

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• Select section Learning Outcome 1 : Prepare for work

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  Learning Outcome 1 : Prepare for work

  By the end of the learning outcome, the trainees will be able to:
  

  1. Selected properly Materials used in drainage system in accordance with type of work
  2. Selected properly Tools used in drainage system in accordance with type of work
     
  3. Selected properly equipment used in drainage system in accordance with type of work
     
  4. Prepare conveniently Workplace is according to the work to be done
     

  • Select activity Indicative Content 1.1: Selection of materials

    

    Indicative Content 1.1: Selection of materials Interactive Content

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  • Select activity Indicative Content 1.2: Selection of tools and equipment

    

    Indicative Content 1.2: Selection of tools and equipment Interactive Content

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  • Select activity Indicative Content 1.3: Preparation of workplace

    

    Indicative Content 1.3: Preparation of workplace Interactive Content

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• Select section Learning Outcome 2 : Excavate trenches

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  Learning Outcome 2 : Excavate trenches

  
  

  By the end of the learning outcome, the trainees will be able to:
  

  1. Set adequately Drainage structures according to the drawing

  2. Excavate conveniently trenches in accordance to the measurement of structure

  3. Install properly Trench shields according to the site condition.

  
  
  

  • Select activity Indicative Content 2.1: Setting out of drainage structures

    

    Indicative Content 2.1: Setting out of drainage structures Interactive Content

    Completion

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  • Select activity Indicative Content 2.2: Excavation of trenches

    

    Indicative Content 2.2: Excavation of trenches Interactive Content

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  • Select activity Indicative Content 2.3: Installation of trench shield

    

    Indicative Content 2.3: Installation of trench shield Interactive Content

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• Select section Learning Outcome 3 : Construct drainage system structures

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  Learning Outcome 3 : Construct drainage system structures

  
  

  By the end of the learning outcome, the trainees will be able to:
  

  1. Install properly Subsurface drainage according to the specification drainage system structures.

  2. Construct adequately masonry drainage according to the type of drain

  3. Execute systematically Backfilling in accordance with specification

  
  

  • Select activity Indicative Content 3.1: Installation of subsurface drainage

    

    Indicative Content 3.1: Installation of subsurface drainage Interactive Content

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  • Select activity Indicative Content 3.2: Construction of masonry drainage

    

    Indicative Content 3.2: Construction of masonry drainage Interactive Content

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  • Select activity Indicative Content 3.3: Execution of backfilling

    

    Indicative Content 3.3: Execution of backfilling Interactive Content

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• Select section Learning Outcome 4 : Apply erosion control method and cleaning workplace

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  Learning Outcome 4 : Apply erosion control method and cleaning workplace

  
  

  By the end of the learning outcome, the trainees will be able to:

  1. Identify properly Erosion according to their types

  2. Plant properly Vegetation according to the types of soil

  3. Clean correctly Tools, equipment and workplace with accordance to the standard

  
  

  • Select activity Indicative Content 4.1: Identification of erosion

    

    Indicative Content 4.1: Identification of erosion Interactive Content

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  • Select activity Indicative Content 4.2: Erosion control method

    

    Indicative Content 4.2: Erosion control method Interactive Content

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  • Select activity Indicative Content 4.3: Cleaning of tools, equipment and workplace

    

    Indicative Content 4.3: Cleaning of tools, equipment and workplace Interactive Content

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• Select section Sources

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  Sources

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    References Page

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