excavation techniques
The methods to remove rock and soil, used in an excavation site and the associated risks.
Sewer construction workers install sewer pipes to transport wastewater out of structures and to a body of water or treatment facility. They dig trenches and insert the pipes, making sure they have the correct angle and are connected watertight. Sewer construction workers also construct other elements of sewage infrastructure, such as manholes, and maintain and repair existing systems.
No competences in this bucket.
The methods to remove rock and soil, used in an excavation site and the associated risks.
Mechanical systems, including gears, engines, hydraulic and pneumatic systems. Their functions and likely defects.
Theoretical and practical applications of the science studying the action of displacements and forces on physical bodies to the development of machinery and mechanical devices.
No competences in this bucket.
Assemble parts and components made for pipelines in companies or sites. Construct pipeline infrastructures or re-assemble parts that were taken out for repair.
Detect flaws in pipeline infrastructure during construction or over the passage of time. Detect flaws such as construction defects, corrosion, ground movement, hot-tap made by error, and others.
Prepare trenches for sewer pipes. Dig judiciously according to plans, avoiding underground utility infrastructure. Brace the trench to prevent compaction of the sewer pipe. Fill the trench after the pipes have been installed.
Ensure health and safety during the construction project by inspecting the construction site regularly. Identify risks of putting people in danger or of damaging construction equipment.
Use the appropriate equipment, such as a hydraulic grappler, to lay sewer pipes into a prepared trench. Coordinate with a co-worker to manoeuvre the pipe so as to fit securely on the previously installed pipe. Push and wiggle the pipe if necessary to create a seal.
Change the profile of the earth surface, turning it flat or shaping it to match a certain slope. Remove irregularities such as knolls, pits and ditches.
Lay bedding in a trench to stabilise a pipe if called for. Lay bedding beneath the pipe and around it to protect from environmental influences.
Perform tests on pipelines, such checking whether there is continuous flow of materials through them, examining for leakages, and assessing the suitability of the location of the pipeline is.
Bring construction materials, tools and equipment to the construction site and store them properly taking various aspects into account such as the workers' safety and protection from deterioration.
Transport pipes manually or by operating equipment such as mechanical lifts and truck winches.
Apply the relevant health and safety procedures in construction in order to prevent accidents, pollution and other risks.
Check construction supplies for damage, moisture, loss or other problems before using the material.
Consult utility companies or plans on the location of any utility infrastructure that may interfere with a project or be damaged by it. Take the necessary steps to avoid damage.
Ensure the conservation of pipelines by undertaking adequate maintenance of the system and its coating properties. Prevent corrosion formation, leaks, and other problems.
Monitor the situation around you and anticipate. Be ready to take quick and appropriate action in case of unexpected events.
Secure the operation site fixing boundaries, restricting access, placing signs and taking other measures in order to guarantee public and staff safety.
Use different measurement instruments depending on the property to be measured. Utilise various instruments to measure length, area, volume, speed, energy, force, and others.
Use elements of protective clothing such as steel-tipped shoes, and gear such as protective goggles, in order to minimise risk of accidents in construction and to mitigate any injury if an accident does occur.
Apply ergonomy principles in the organisation of the workplace while manually handling equipment and materials.
No competences in this bucket.
Different types of bedding materials used to stabilise structures such as pipe. The differences in performance, availability and cost of the materials and their suitability for the purpose, climate and other stresses.
The principles of electricity and electrical power circuits, as well as the associated risks.
The maximum load capacity of the operated piece of machinery, under different circumstances and in different positions and movements. Passive load capacity and active load capacity, which is measure while in motion.
No competences in this bucket.
Use mechanical equipment to dig up and move soil. Form pits according to excavation plans.
Guide a colleague in operating a piece of heavy construction equipment. Follow the operation closely and understand when feedback is called for. Use communication techniques like voice, two-way radio, agreed-upon gestures and whistles to signal the appropriate information to the operator.
Lay different types and sizes of PVC piping in prepared spaces. Cut the piping to size and attach it by using glue or other systems. Make sure the piping has a clean edge, is free of strains and has the right tilt for fluids to run through.
Interpret and understand plans and drawings in manufacturing processes which include representations in two dimensions.
Mix construction materials with water and other materials based on the appropriate recipe. Mix thoroughly to prevent lumps. Avoid contamination, which will adversely affect the properties of the mixture.
Operate excavators used to dig materials from the surface and load them onto dump trucks.
Receive incoming construction supplies, handle the transaction and enter the supplies into any internal administration system.
Set up a variety of temporary infrastructure used on building sites. Put up fences and signs. Set up any construction trailers and make sure that these are connected to electricity lines and water supply. Establish supplies stores and garbage disposal in a sensible manner.
Work as part of a team in a construction project. Communicate efficiently, sharing information with team members and reporting to supervisors. Follow instructions and adapt to changes in a flexible manner.
Operate cutting and measuring instruments in order to cut/shape pieces of metal into given dimensions.
Drive movable heavy equipment used in construction. Load the equipment onto low loaders, or unload it. Judiciously drive equipment on public roads when required.
Interpret and understand plans and drawings in manufacturing processes which include representations in three dimensions.
Inspect heavy equipment for construction projects before each use. Maintain the machine in good working order, taking care of small repairs and alerting the responsible person in case of serious defects.
File and organise personal administration documents comprehensively.
Maintain records of the progress of the work including time, defects, malfunctions, etc.
Use GPS Systems.
Operate a hydraulic grappler, an attachment to heavy machinery used to grab and manipulate cylindrical objects such as trees or pipes. Lift up the object, safely manoeuvre it, and set it down in the desired position.
Work with heavy construction machinery independently without the intervention of a supervisor. Take responsibility for your decisions and actions.
Conduct maintenance and repair work on pipelines to prevent or remedy damages using, if necessary, remote-controlled robots.
Safely attach loads to different types of hooks and attachments, taking into account the weight of the load, the power available to move it, static and dynamic tolerances of all instruments and materials, and the mass distribution of the system. Communicate with the operator verbally or with gestures to ensure the safety and efficiency of the operation. Detach loads.