Perform chemical and resin grouting, and soil injection
Overview
This standard is about performing chemical and resin grouting, and soil injection and the maintenance of grouting equipment in order to seal, stabilise and strengthen ground or intrastate minimising damage, and working within the allocated time, in accordance with organisational requirements which are equal to or exceed current statutory and legislative requirements
This standard will also involve interpreting information, adopting safe, healthy and environmentally responsible work practices, selecting and using materials, components, tools and equipment, minimising damage, and working within the allocated time, in accordance with organisational requirements which are equal to or exceed current statutory and legislative requirements
This standard is for people working in the occupational area of sub-structure work occupations and can be used by operatives, supervisors and managers
Performance criteria
You must be able to:
Interpretation of information
P1 interpret the information relating to the work and resources to confirm its relevance for the following:
• drawings
• specifications
• schedules
• risk assessments
• method statements
• manufacturers’ information
Safe work practices
P2 comply with the relevant legislation and official guidance to carry out the work and maintain safe and healthy work practices relating to the following:
• methods of work
• safe use of health and safety control equipment
• safe use of access equipment
• safe use, storage and handling of materials, tools and equipment
• specific risks to health
• specific risks associated with asbestos containing materials
Selection of resources
P3 select the required quantity and quality of the following resources for the methods of work:
• materials
• components and fixings
• tools and equipment
Minimise the risk of damage
P4 comply with organisational procedures to minimise the risk of damage to the work and surrounding area by:
• protecting the work and its surrounding area from damage
• maintaining a safe, clear and tidy work area
• disposing of waste in accordance with current legislation
Approach to the work
P5 complete the work in accordance with organisational procedures, the programme of work and to meet the needs of others and the client
Meet the contract specification
P6 comply with the contract information to perform chemical resin grouting, and soil injection to the required specification by:
• demonstrating work skills to:
- check
- secure
- mix
- operate and pump
- observe and record
- maintain and clean
• using and maintaining hand and power tools, and equipment
• perform chemical and resin grouting and soil injection to working instructions for the following:
- sealing (waterproofing, leakage)
- stabilising (compaction, consolidation, void filling)
- structurally loading
- cleaning grouting equipment
Knowledge and Understanding
You need to know and understand:
P1 Interpretation of information
K1 why organisational procedures have been developed and how they are implemented
K2 types of information, their source and how they are interpreted in relation to:
• drawings
• specifications
• schedules
• risk assessments
• method statements
• manufacturers’ information
• current legislation and regulations governing buildings
K3 the importance of accurate information, and reporting and rectifying any concerns with the information
K4 the range of relevant digital services, tools and systems, and how they are used
P2 Safe work practices
K5 information for relevant, current legislation and official guidance and how it is applied
K6 the types of fire extinguishers and how and when they are used in relation to:
• water
• CO2
• foam
• powder
K7 how emergencies should be responded to in accordance with organisational authorisation and personal skills in relation to:
• fires, spillages, injuries
• emergencies relating to occupational activities
• identification of and reporting of asbestos containing materials
K8 the organisational security procedures for tools, equipment and personal belongings in relation to:
• operative
• site
• workplace
• vehicles
• company
• customer
• the general public
K9 • how to report risks and hazards identified by the following:
• risk assessments
• methods of work
• personal assessment
• manufacturers’ technical information
• statutory regulations
• official guidance
• Control of Substances Hazardous to Health (COSHH)
K10 the accident reporting procedures and who is responsible for making the report
K11 why, when and how health and safety control equipment identified by the principles of prevention should be used in relation to:
• collective protective measures
• personal protective equipment (PPE)
• respiratory protective equipment (RPE)
• local exhaust ventilation (LEV) including the monitoring of gas types and levels
K12 how to comply with environmentally responsible work practices to meet current legislation and official guidance
K13 the organisational procedures when dealing with potential accidents, health hazards and the environmental impact on site, and whilst working:
• below ground level
• in confined spaces
• at height
• with tools and equipment
• with materials and substances
• when moving and storing materials by manual handling and mechanical lifting
P3 Selection of resources
K14 why the characteristics, quality, uses, sustainability, limitations and defects associated with the resources are important and how defects should be rectified
K15 the organisational procedures to select resources, why they have been developed and how they are used
K16 how to confirm the resources and materials conform with the specification
K17 how the resources should be used and how any problems associated with the resources are reported in relation to:
• packers, lances, couplers and mixers
• injection and grouting plant for mixing, measuring and pumping chemicals
• hand and power tools and equipment
• digital equipment
K18 how to identify the hazards associated with the resources and methods of work and how they are overcome
K19 methods of calculating the quantity, area, size, volume, length and wastage associated with the method and procedure to perform chemical and resin grouting, and soil injection
P4 Minimise the risk of damage
K20 how to protect work and its surrounding area from damage and the purpose of protection from general workplace activities, other occupations and adverse weather conditions
K21 how to minimise the damage to existing building fabric
K22 why and how the disposal of waste must be carried out safely in accordance with the following:
• environmental responsibilities
• organisational procedures
• manufacturers’ information
• statutory regulations
• official guidance
K23 why it is important to maintain a safe, clear and tidy work area
P5 Approach to the work
K24 the programme of work to be carried out including the estimated and allocated time and why deadlines should be kept
K25 the types of progress charts, timetables and estimated times and the organisational procedures for reporting circumstances which will affect the work programme
P6 Meet the contract specification
K26 how to comply with method statements, and risk and COSHH assessments
K27 how to recognise the characteristics of different chemicals and resins and grouts and how the characteristics affect sealing, stabilising and structural loading
K28 how to use injection and grouting plant to mix, pump and inject resins, and grout
K29 how to apply additives and hardeners
K30 how to install lances and manchette tube systems
K31 how to insert packers and packer hose to depth
K32 how to monitor injection by reading and observing pressures and flows
K33 how to grout to termination
K34 how to record details (pressure, quantity and flow)
K35 how to identify COSHH disposal sources
K36 how to operate and maintain pumps
K37 how to clear and remove blockages
K38 how to reinstate original conditions
K39 how to handle and dispose of hazardous waste according to the Control of Substances Hazardous to Health (COSHH) assessment
K40 how to work with, around and in close proximity to plant and machinery
K41 how to clean and flush out injection and grouting equipment
K42 how to work at height using access equipment
K43 how and why operative care and maintenance of all hand and power tools and equipment is carried out
K44 the importance of recognising the limits of your own authority and competence, and when to seek support
K45 the importance of teamwork and communication
K46 the importance of mental health awareness and wellbeing
K47 the importance of applying fairness, inclusion and respect when dealing with others
K48 the needs of other occupations associated with performing chemical and resin grouting, and soil injection