Yes. This is a competence-based NVQ assessed through workplace evidence.

Do I need to be employed?

You need a suitable workplace role (employed or otherwise) where you can generate the required evidence.

Civil and Specialist Construction

Level 2 NVQ Diploma in Tunnelling Operations (Construction)

A work-based qualification confirming competence in specialist tunnelling plant, services and construction activities.

Overview

The Level 2 NVQ Diploma in Tunnelling Operations (Construction) is a competence-based qualification for people undertaking practical construction, installation, excavation, transport, plant or support activities in tunnelling environments.

It confirms that a worker can perform a defined tunnelling occupation safely and productively under workplace conditions. Depending on the selected pathway, this may involve excavating and profiling tunnels, constructing shafts or tunnel linings, operating specialist tunnelling machinery, installing temporary services, transporting materials, controlling spoil-removal systems, applying sprayed concrete or operating slurry and separation plant.

The qualification is assessed through the learner’s normal work rather than through classroom study alone. Learners must demonstrate that they can interpret task information, follow risk assessments and method statements, select and inspect resources, use occupational equipment, control tunnelling hazards, communicate with the wider team and complete work to the required specification.

For employers, the qualification provides structured evidence that an operative has demonstrated occupational competence against nationally recognised construction standards. It can support workforce competence management, allocation of specialist tunnelling duties and confirmation of the worker’s particular occupational pathway.

An older approved version was closed to new registrations and replaced by a revised version in 2024. Another current approved version retains a broader pathway structure. As a result, some specialisms remain Diploma pathways in one approved version but are packaged as separate Certificates in another. Learners must therefore be registered against the structure that matches their actual occupation.

Who It’s For

This qualification is intended primarily for existing tunnelling workers who already perform, or are developing competence in, a defined operational role. It is not a general introductory construction course and cannot normally be completed without continuing access to genuine tunnelling work.

It may be suitable for:

Hand miners and shaft miners.
Tunnelling machine operators and machine tunnelling operatives.
Tunnelling services operatives.
Tunnel transport operators.
Spoil-removal conveyor operatives.
Pipe-jacking, box-jacking and micro-tunnelling operatives.
Separation or slurry plant operatives.
Sprayed concrete lining operatives and nozzle operators.
Workers assisting with tunnelling plant, electrical systems or mechanical services where the relevant pathway is available.
Experienced operatives seeking formal recognition of competence in their existing role.

Learners generally work to instructions, method statements and production requirements established by supervisors, engineers or site management. They are expected to take responsibility for their own work, equipment checks, safe working practices, communication and the reporting of defects or changing ground and workplace conditions.

Suitable workplaces include tunnel drives, shafts, underground construction areas, launch and reception pits, portal areas, spoil-handling installations, sprayed concrete operations and associated surface plant compounds.

Learners must be able to access the activities, plant and conditions required by their chosen pathway. Employment is normally necessary. A genuine placement or other sustained workplace arrangement may be acceptable only where it provides sufficient real work and allows competence evidence to be authenticated.

Pathways and Occupational Specialisms

The qualification is completed through an occupational pathway that reflects the learner’s actual job. Each pathway combines shared workplace competence with specialist tunnelling activities. Availability differs between approved versions, so registration must be checked before assessment begins.

Hand Mining

This pathway concerns the excavation and profiling of tunnels and the construction of temporary or permanent linings. Work may involve hand-mining, drilling-and-blasting or mechanised excavation endorsements, together with mechanised or non-mechanised lining methods.

Shaft Miner

The Shaft Miner pathway covers constructing shafts using the method applicable to the project. Recognised activities can include underpinning, caisson sinking, framed piling systems or drilling-and-blasting operations.

Tunnelling Machine Operator

This specialism is for workers who prepare and operate substantial tunnelling plant to excavate and form tunnels. Equipment endorsements may include rock tunnel-boring machines, roadheaders, shield-mounted excavation equipment, drill rigs, excavators, pre-vault systems or remote-controlled tunnelling machinery.

Machine Tunnelling Operative

This pathway covers practical support work within a mechanised tunnelling operation. It combines the installation of tunnelling services, construction of tunnel linings and use of powered tools or pedestrian-operated equipment.

Spoil Removal Conveyor Operative

This pathway is concerned with installing, operating, inspecting, monitoring and isolating an underground spoil-removal conveyor. It may also require competence in directing vehicle or plant movements and installing materials-handling services.

Overground Spoil Removal Conveyor Operative

This route covers surface conveyor systems used to remove or transfer excavated material. It includes pre-start inspections, daily maintenance, monitoring, isolation, dust control and defect reporting. It remains within the Diploma structure only in some approved versions and is packaged separately in others.

Tunnelling Operative

This pathway is for tunnelling services operatives carrying out a combination of service installation, plant movement guidance and powered-tool or pedestrian-plant operations. Service endorsements can include ventilation, pressurised lines, walkways, cables, pipelines, materials-handling systems and brackets.

Tunnel Transport Operator

This pathway covers specialist plant used to receive, transport and discharge materials within a tunnelling environment. The occupational endorsement may relate to locomotives and rolling stock or approved underground bulk-transport systems.

Tunnel Fitter’s or Tunnel Electrician’s Mate

This specialism covers installing tunnel services and assisting with routine maintenance of tunnelling plant, machinery and equipment. It remains a Diploma pathway in some approved structures but is a separate Level 2 NVQ Certificate in another current suite.

Sprayed Concrete Lining — Tunnelling Nozzleman

This pathway covers preparing tunnel substrates and applying sprayed concrete. It includes operating the spraying nozzle or associated pump, forming the required profile, producing test samples, curing and protecting the concrete and recording spraying or testing information.

Pipe Jacking, Box Jacking or Micro-Tunnelling Operative

This route concerns installing, operating and monitoring systems used to construct tunnels by pipe jacking, box jacking or micro-tunnelling. The learner’s occupational endorsement must match the method demonstrated at work.

Separation Plant Operative

This pathway covers slurry or fluid-processing plant associated with tunnelling, pipe jacking or shaft sinking. It includes preparing the system, controlling the flow and treatment process, monitoring operating conditions and dealing with spoil, fluids and plant outputs safely.

Workplace Requirements

Learners need sustained access to a live tunnelling project or associated operational workplace. The available work must correspond to the selected pathway and any required equipment, method or activity endorsements.

Depending on the pathway, workplace access may need to include:

Underground tunnels, shafts, portals, launch pits or reception areas.
Relevant excavation, lining, jacking, conveying, transport or separation operations.
Approved drawings, task briefings, specifications, risk assessments and method statements.
Tunnelling plant, powered tools, pumps, compressors, generators or pedestrian-operated machinery.
Ventilation, pressurised services, walkways, cables, pipelines and materials-handling systems.
Tunnel lining components, reinforcement, sprayed concrete materials or waterproofing systems.
Communication, signalling, emergency and safe-isolation arrangements.
Suitable opportunities to inspect equipment, identify defects and report changing conditions.
Workplace records, check sheets, maintenance information and production documentation.
Coordination with plant operators, miners, engineers, fitters, electricians, supervisors and other tunnelling personnel.

The learner must be allowed to perform the work rather than merely observe it. Access must also be sufficient for an assessor to confirm competence across all required activities and endorsements.

Tunnelling frequently involves confined or restricted spaces, underground work, mobile plant, stored energy, pressurised systems, dust, noise, water ingress and changing ground conditions. Evidence must therefore demonstrate compliance with the project’s controls, permits, emergency arrangements and limits of the learner’s authority.

Learning Outcomes

Successful learners can demonstrate the outcomes relevant to their occupational pathway, including the ability to:

Interpret drawings, task briefings, specifications, risk assessments, method statements and manufacturers’ instructions.
Identify unsuitable information, changing conditions and resources that do not meet the task requirements.
Follow tunnelling-specific health, safety, environmental and emergency procedures.
Select, check and prepare the materials, components, tools, plant and protective equipment needed for the work.
Work safely below ground, in confined spaces and near tunnelling machinery, transport systems and pressurised services.
Apply isolation, exclusion-zone, communication and movement-control procedures.
Excavate, profile, line, service or support tunnel construction according to the selected pathway.
Prepare and operate specialist tunnelling, conveying, transport, sprayed concrete or slurry-processing equipment where required.
Monitor plant performance and recognise operating conditions, defects or hazards that require work to stop.
Protect installed work, equipment, the workforce and the surrounding environment.
Control spoil, wastewater, dust, surplus materials and other tunnelling outputs in accordance with site procedures.
Inspect completed work and confirm compliance with instructions, profiles, levels or operating requirements.
Communicate effectively with supervisors, plant operators and the wider tunnelling team.
Complete check sheets, production records, maintenance information and defect reports clearly.
Finish work within the agreed programme while maintaining safety and quality.

Units

Every pathway includes mandatory occupational units. Health and safety, productive working and resource handling form the shared competence foundation. The remaining mandatory units are determined by the learner’s pathway and, where applicable, the equipment or work-method endorsement.

Some current structures also permit structural waterproofing as an additional unit. In those structures it does not contribute to completion of the core qualification. Unit availability, revised wording and endorsement combinations should be confirmed at registration.

Follow site inductions, briefings, warning notices and approved safe systems of work.
Use collective protection, personal protective equipment, respiratory protection and ventilation controls correctly.
Recognise and report hazards arising from plant, services, substances, access restrictions and changing conditions.
Follow accident, fire, evacuation and emergency procedures.
Stop work when serious or imminent danger is identified.
Maintain welfare, security and waste-disposal arrangements.

Communicate appropriately with supervisors, colleagues, operators and other relevant personnel.
Organise work so that it meets the programme, task instructions and needs of connected occupations.
Complete job cards, check sheets, timesheets and resource records clearly.
Report delays, unsuitable resources and circumstances affecting planned work.
Maintain effective working relationships in a diverse site team.
Work to the agreed specification while respecting individual responsibilities and authority.

Confirm the type, quantity, condition and storage requirements of resources.
Plan movement routes around restricted access, plant, services and other work activities.
Use handling equipment and lifting aids within personal competence and site rules.
Prevent damage, instability, contamination or obstruction during movement and storage.
Maintain safe access and protect the surrounding environment.
Report damaged, unsuitable or incorrectly delivered resources.

Interpret lining drawings, specifications, method statements and sequence requirements.
Select and check lining components, gaskets, fittings, fixings, tools and equipment.
Measure, mark, fit, position and secure the lining.
Construct the specified temporary or permanent lining using the endorsed method.
Check alignment, joints, seals, connections and visible defects.
Coordinate the lining sequence with excavation, transport and service-installation activities.

Interpret excavation information, profile requirements and ground-support instructions.
Check the work area, access, services, support arrangements and excavation resources.
Excavate and profile the tunnel to the required line, level and dimensions.
Identify changing ground conditions, instability, obstructions and overbreak.
Work safely around excavation plant and newly exposed ground.
Communicate progress and conditions affecting support, lining or the excavation sequence.

Interpret shaft drawings, dimensions, excavation stages and temporary-works information.
Prepare the work area, access, resources and safety arrangements.
Excavate, position, support, secure and construct shaft elements in the correct sequence.
Check line, level, dimensions and stability throughout the work.
Control hazards associated with lifting, falling materials, water and confined access.
Report ground movement, defects and conditions outside the approved method.

Interpret machine operating information, excavation requirements and task controls.
Conduct pre-use checks and confirm guards, alarms, communication and emergency systems.
Prepare the machine and work area for the tunnelling operation.
Operate, manoeuvre, control and monitor the endorsed plant within operating limits.
Respond correctly to obstructions, changing ground, abnormal readings and malfunctions.
Shut down, isolate, clean and leave the plant in a safe condition.
Record operating information and report defects requiring specialist attention.

Interpret service routes, brackets, connection details and installation sequences.
Install selected ventilation, pressurised, access, cable, pipeline or materials-handling services.
Position and secure brackets, supports, walkways and service components.
Protect services from plant movements, excavation activity and physical damage.
Check joints, supports, clearances and connections before use.
Coordinate installations with mining, lining, transport and maintenance teams.
Identify leaks, damage, interference and unsafe service conditions.

Select equipment suited to the task and working environment.
Inspect controls, guards, connections, hoses, leads and safety devices.
Prepare and operate the endorsed equipment according to instructions.
Maintain safe clearances, ventilation and exclusion arrangements.
Monitor performance and stop when defects or abnormal conditions arise.
Shut down, isolate, clean and store equipment securely.

Interpret operating instructions, task briefings and conveyor safety arrangements.
Inspect, install or adjust relevant conveyor components.
Carry out start-up, operating, monitoring and shutdown procedures.
Observe belts, joints, transfer points, guards, alarms and emergency stops.
Apply safe isolation before cleaning, adjustment or permitted maintenance.
Identify blockages, misalignment, spillage and mechanical defects.
Maintain communication with the excavation and spoil-handling teams.

Assess routes, clearances, ground conditions, overhead hazards and exclusion zones.
Establish recognised signals and communication with the operator.
Position safely while maintaining an effective view of the movement.
Direct, guide, stop and reposition vehicles or plant using approved signals.
Control interaction with workers, services, structures and other machinery.
Stop the movement when communication is lost or conditions become unsafe.
Report circumstances requiring different equipment or specialist assistance.

Complete pre-start and daily visual inspections.
Check guards, alarms, emergency stops, joints, tension and transfer points.
Start, operate, monitor and close down the conveyor safely.
Clean, clear, lubricate and tension components within the operative’s authority.
Apply safe mechanical isolation and control other stored-energy hazards.
Monitor dust, spillage, noise and the condition of processed material.
Record checks and report safety-system or mechanical defects.

Interpret transport plans, movement instructions and load restrictions.
Conduct pre-use checks on the vehicle, rolling stock or bulk system.
Confirm routes, clearances, points, signalling and communication arrangements.
Receive, secure, transport and discharge materials safely.
Control risks from gradients, restricted visibility, pedestrians and other plant.
Apply shutdown and isolation procedures.
Record movements and report transport or track defects.

Follow maintenance schedules, instructions and isolation procedures.
Check, measure, clean, secure, adjust and replace permitted components.
Maintain selected cooling, lubrication, fuel, pressure, ventilation, cabling, control, lighting or communication systems.
Complete functional checks after authorised maintenance.
Recognise defects and maintenance requirements outside the learner’s competence.
Record work completed and report outstanding faults accurately.

Interpret profile information, reinforcement details and surface-preparation requirements.
Locate and protect services before preparation begins.
Remove loose or debonded material and roughen or clean the substrate.
Establish surface levels and profiles using guide wires or depth pins.
Position and secure reinforcement bars or mesh where required.
Erect local formwork and protect adjoining work.
Record preparation and report conditions affecting sprayed concrete application.

Interpret the required profile, mix information, spraying sequence and test requirements.
Inspect the pump, nozzle, delivery lines and associated equipment.
Pre-wet surfaces where specified and spray concrete to the required profile.
Operate the nozzle or pump within the learner’s endorsement.
Control rebound, overspray, line blockages and exposure to cementitious dust.
Produce samples and support required testing.
Cure and protect completed concrete.
Clean the pump and lines safely and complete spraying and test records.

Interpret launch, line, level, jacking and reception information.
Prepare the work area, plant, jacking equipment and associated services.
Position and monitor pipes, boxes, inter-jack systems and tunnelling equipment.
Connect and disconnect systems using appropriate stored-energy isolation.
Control and monitor line, level, jacking force and operational progress.
Support safe launch and recovery of the tunnelling plant.
Report deviation, ground response, obstruction or equipment malfunction promptly.

Interpret flow diagrams, plant instructions, task briefings and operating limits.
Inspect tanks, pumps, pipework, valves, screens and separation equipment.
Prepare and start the slurry or fluid-processing system.
Control flow, pressure, density and separation processes as required.
Monitor outputs, spoil, fluids and operating readings.
Respond to leaks, blockages, pressure changes and abnormal conditions.
Shut down, isolate and clean the plant safely.
Manage processed material, wastewater and waste in accordance with site controls.

Interpret waterproofing specifications, drawings and manufacturers’ instructions.
Prepare surfaces and calculate material requirements.
Apply or install the specified liquid, sheet, drained-cavity, concrete, screed or render system.
Form and seal joints, penetrations and termination details.
Inspect, test, finish and protect the completed system.
Identify defects, repair requirements and work requiring specialist knowledge.

Assessment

Assessment establishes whether the learner can consistently perform the tunnelling occupation described by the selected pathway. A portfolio must demonstrate achievement of every required learning outcome, assessment criterion and endorsement.

Workplace Observation

A competent assessor observes the learner undertaking normal work, such as installing tunnel services, profiling an excavation, constructing linings, operating a conveyor, controlling plant or carrying out slurry operations.

Observation must confirm safe preparation, correct sequencing, equipment use, communication, quality checks and completion. Workplace evidence of occupational skills cannot be replaced by simulation.

Portfolio and Work Products

The portfolio brings together authenticated evidence from the learner’s role. Relevant evidence may include:

Assessor observation records.
Tunnel, shaft, lining or service-installation check sheets.
Plant inspection and pre-start records.
Conveyor, separation plant or transport operating logs.
Sprayed concrete preparation, application and test records.
Maintenance schedules and completed maintenance reports.
Drawings, task briefings and method statements used during observed work.
Defect, delay, incident or changing-condition reports.
Photographs linked to authenticated workplace activities.
Completed job cards, material records and shift documentation.

Evidence must belong to the learner and show what they did rather than merely describe the wider team’s work.

Questioning and Professional Discussion

Oral or written questioning and professional discussion confirm the knowledge that cannot always be observed directly. This can include emergency procedures, equipment limitations, ground-condition hazards, environmental controls, safe isolation and the reasons for selecting a particular method or resource.

Knowledge evidence supports practical evidence but does not replace demonstration of occupational competence.

Witness Testimony and Employer Evidence

Statements from suitably experienced supervisors, engineers or other occupationally competent witnesses may support the portfolio. They must identify the learner, the work undertaken, the circumstances and the competence observed.

Witness evidence cannot be the only basis for assessment where direct assessor observation is required.

Recognition of Prior Learning

Relevant authenticated evidence from previous tunnelling work may be considered where it remains current and satisfies the qualification requirements. Existing experience does not remove the need to demonstrate every mandatory unit, required endorsement and assessment criterion.

To complete the qualification, the learner must achieve all mandatory units for one approved pathway and meet its endorsement requirements.

Career Progression

Completion formally recognises competence in the occupational pathway assessed. Progression depends on the learner’s experience, employer requirements, project opportunities and any additional technical or statutory authorisations.

Skilled Tunnelling Roles

The qualification can support continued work in the corresponding occupation, such as:

Hand miner or shaft miner.
Machine tunnelling operative.
Tunnelling machine operator.
Tunnelling services operative.
Tunnel transport operator.
Spoil-removal conveyor operative.
Pipe-jacking or micro-tunnelling operative.
Separation plant operative.
Sprayed concrete lining operative.

The qualification does not authorise activities such as blasting, electrical work, specialist mechanical repair, lifting operations or entry into confined spaces where separate competence, training or appointment is required.

Advanced and Specialist Development

Experienced workers may develop towards more complex machinery, specialist construction methods, lead operative responsibilities or tunnel-boring machine operation. Relevant progression can include an advanced tunnelling operations qualification for tunnel-boring machine operators or further occupational qualifications connected with plant, sprayed concrete, temporary works or specialist underground construction.

Supervision and Site Leadership

Operatives who gain suitable experience may progress towards occupational work supervision or tunnelling-focused construction site supervision. Supervisory progression requires competence in planning, coordinating resources, monitoring work, leading teams and controlling site activities beyond the scope of this Level 2 qualification.

CSCS Card

The qualification has verified mappings to the Blue Skilled Worker card for a range of tunnelling occupations. Completing the qualification can support an application but does not automatically issue or guarantee a card.

Mapped occupations include machine tunnelling operative, pipejacking or micro-tunnelling operative, separation plant operative, spoil-removal equipment operative, sprayed concrete lining tunnelling operative, tunnel transport operative, hand miner, machine miner, shaft miner, tunnel miner, tunnelling services operative and tunnelling fitter’s or electrician’s mate.

The certificate and pathway must correspond to the occupation selected in the application. Most mapped specialist tunnelling occupations require the CITB Health, Safety and Environment Specialist Tunnelling test. The mapped spoil-removal equipment occupation currently identifies the Operatives test instead.

Applicants must separately apply for the card and must have passed the relevant health, safety and environment test within the required validity period. Pathway wording and card mappings can change, so applicants should confirm the current occupation, qualification and test through the official card finder before applying.

FAQs

These questions address the pathway, workplace and assessment issues that commonly affect prospective tunnelling learners.

Normally, no. The qualification assesses competence in genuine tunnelling operations. Learners need sustained access to the work, equipment and conditions associated with their selected pathway.

No. You complete the mandatory units for one occupational pathway, including any required activity or equipment endorsements. Units belonging only to other tunnelling roles are not automatically required.

Current versions are not structured identically. Certain specialisms remain pathways within one Diploma but are issued as separate Level 2 NVQ Certificates in another current suite. The registration title and structure must therefore be checked against the learner’s actual role.

Training-centre instruction may help develop knowledge or skills, but simulated performance cannot replace the workplace evidence required for the competence units. The assessed occupational activities must be demonstrated in a real work environment.

There is no single awarding-body-neutral experience requirement, but learners must be capable of performing real tunnelling work and producing evidence against the selected pathway. It is primarily designed for workers already employed or actively placed in the occupation.

No. Machine-related competence is tied to the plant or activity endorsement assessed. Employers must also confirm project induction, familiarisation, authorisation and any additional equipment-specific requirements.

No. An excavation or transport endorsement referring to blasting or electrical systems does not by itself authorise the learner to handle explosives or perform regulated electrical work. Separate competence, training, appointments and legal controls continue to apply.

Yes, where the completed pathway corresponds to a currently mapped tunnelling occupation. The applicant must apply separately, provide the required qualification evidence and pass the correct health, safety and environment test. The current mapping should be confirmed before applying.

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