01 Tunnel Inspection +
  • Detailed visual and digital inspections of tunnels using advanced techniques
  • Identification of structural defects, water ingress, lining degradation, and ground movement
  • Use of high-resolution photography, 3D scanning, and non-destructive testing methods
  • Preparation of comprehensive inspection reports with prioritised repair recommendations
  • Periodic inspection planning and asset condition monitoring for long-term maintenance
  • Compliance with UK standards and client-specific specifications
  • Inspections carried out by experienced Chartered Tunnel Engineers
02 Construction and Project Management +
  • Constructability reviews
  • Contract management
  • Risk management
  • Value engineering
  • Specialist advice on construction methodology and optioneering
  • Expert support for contractual issues related to ground conditions
  • Project management
  • Peer review
03 Rock Tunnelling +
  • Rock tunnelling advice and methodology reviews
  • Specialist advice on rock support implementation during design and construction
  • Expertise in evaluation of project feasibility in rock environments
  • Specialist advice on construction methodology and optioneering
  • Specialist advice on drill and blast tunnels
  • Technical advice on construction of underground caverns
04 Structural Assessment +
  • Structural analysis and integrity assessments for tunnels, bridges, buildings, and retaining walls
  • Load assessment and verification for change of use, ageing assets, or post-damage evaluation
  • Finite Element Modelling (FEM) and hand calculation checks to validate structural performance
  • Advice on repair, strengthening, or replacement options based on findings
  • Condition surveys and structural health monitoring setup
  • Risk assessment of defects with actionable recommendations
  • Services delivered by qualified structural and civil engineers in accordance with relevant codes
05 Soft Ground Tunnelling +
  • Constructability reviews of underground projects
  • Technical advice on tunnels constructed with the SCL method
  • Technical support for various TBM tunnelling methods in soft ground
  • Specialist advice on soft ground construction methods
06 Shaft Construction +
  • Specialist advice on shaft construction during design and execution
  • Constructability reviews and technical advice on Caisson Sinking (wet and dry), underpinning, and SCL techniques
  • Advice on Diaphragm Walling, Secant Piling, and Sheet Piling
  • Guidance on Raise Boring methodology
  • Optioneering and construction methodology support
  • Advice on grouting, dewatering, and other ground treatment techniques
07 Drill and Blast Method +
  • Design of drill and blast patterns for tunnels, shafts, and open excavations
  • Technical support on drill and blast methods throughout the project lifecycle
  • Review and optimisation of drilling and blasting practices
  • Calculation and control of ground vibration and air overpressure
  • Specialist advice for blasting in urban environments and near sensitive structures
  • Strategies to minimise the environmental impacts of blasting
08 Engineering and Design Management +
  • Concept design and design review of underground structures
  • Engineering management during design and construction phases
  • Design management for underground and tunnelling projects
  • Value engineering and design optimisation
  • Incorporation of sustainability in design and construction
  • Peer review of engineering deliverables
09 Civil Engineering Design +

  • Detailed Design and Specification: Preparing complete technical specifications, design drawings (e.g., General Arrangement and Detailed Drawings), and schedules for permanent works in accordance with relevant codes and standards (e.g., Eurocodes, British Standards).

  • Structural Analysis and Verification: Executing advanced structural modelling, stress analysis, and structural verification checks for both underground and above-ground assets.

  • Interface Management: Managing and coordinating design interfaces between civil, geotechnical, mechanical, and electrical disciplines to ensure integrated and holistic solutions.

  • Buildability and Value Engineering: Integrating construction methodology and logistical constraints into the design process to maximise efficiency and applying value engineering principles to optimise cost and programme.

  • Compliance and Regulatory Assurance: Ensuring designs adhere strictly to health, safety, environmental (HSE) regulations, and obtaining necessary statutory approvals.

  • Conceptual and Feasibility Design: Developing initial design options, conducting optioneering studies, and producing feasibility reports for complex infrastructure schemes.

10 Temporary Works Design and Consultancy +
  • Comprehensive Design of Temporary Structures: Production of detailed design calculations, drawings, and specifications for all critical temporary works, including formwork, falsework, scaffolding, temporary propping, and ground support systems (e.g., sheet piles, temporary anchors).

  • Compliance with Standards (BS 5975): Ensuring all designs and site procedures strictly adhere to the requirements of the British Standard BS 5975 (Code of practice for temporary works procedures and the permissible stress design of falsework) and relevant Eurocodes.

  • Design Check and Independent Verification: Undertaking rigorous checks and, where required, independent Category 3 checks (Cat 3 checks) of temporary works designs to ensure structural integrity and stability.

  • Site Support and Implementation Advice: Providing technical support to site teams, advice on safe erection and dismantling sequences, and assistance with Temporary Works Register documentation and permits.

  • Preparation of Design Risk Assessments (DRAs): Conducting thorough risk assessments specific to the temporary structure and its interaction with permanent works, mitigating potential hazards during installation and use.

  • Certification and Design Approval: Formal sign-off by a competent Temporary Works Designer and the issuance of relevant Design Certificates (e.g., TWC sign-off) prior to construction commencement.

11 Construction Advice +
  • Method Statement Review and Optimisation: Detailed assessment and refinement of contractors' Method Statements to ensure technical compliance, constructability, sequence efficiency, and alignment with safety protocols and geotechnical constraints.

  • Soft-Ground Tunnelling Support: Providing expert guidance and practical troubleshooting for soft-ground excavation challenges, including face stability issues, use of Earth Pressure Balance (EPB) and Slurry Tunnel Boring Machines (TBMs), and associated ground treatment.

  • Ground-Related Troubleshooting: Rapid response and provision of authoritative solutions for unexpected site conditions, such as sudden changes in ground behaviour, water ingress control, and management of unforeseen obstructions.

  • Commercial Viability Assessment: Reviewing proposed construction methodologies from a commercial perspective, applying expertise to minimise programme risk, reduce operational costs, and enhance overall project value.

  • Temporary Works Liaison: Offering specialist advice on the implementation and sequencing of critical temporary works, ensuring seamless integration with the permanent works structure and construction programme.

  • Contractual Issue Resolution: Providing technical input and expert opinion to assist contractors in resolving complex ground-related contractual disputes, variations, and claims.

12 Design and Planning Advice +
  • Programme Certainty Optimisation: Developing and reviewing critical path methods and construction sequencing to establish realistic and predictable project timelines, focusing on early identification of potential programme clashes.

  • Cost-Benefit Analysis and Optioneering: Conducting detailed cost studies and technical optioneering to select the most financially efficient and technically robust design solutions, ensuring long-term value for money (VfM).

  • Integrated Works Strategy: Establishing a cohesive strategy for the seamless interface and execution of Temporary Works (TW) and Permanent Works (PW) designs, minimising complexity and site rework.

  • Early-Stage Risk De-risking: Proactive identification and mitigation of major project risks, including geotechnical uncertainty, regulatory hurdles, and constructability challenges, during the initial planning phases.

  • Stakeholder Engagement and Regulatory Approval Support: Assisting clients in presenting technical proposals to stakeholders and statutory bodies to facilitate timely planning permissions and consents.

  • Feasibility Study and Concept Design Development: Translating client requirements into tangible engineering concepts, preparing preliminary designs, and defining scope and budget for subsequent design stages.