ARX Paris – At the Heart of Major National Projects
Located in Courbevoie, at the gateway to the La Défense business district, our Paris office supports public and private clients on some of the most strategic infrastructure projects across the country. Metro systems, railway lines, stations, airports, underground structures, and complex buildings: our teams contribute at every stage of the project lifecycle, providing technical expertise, innovation, and operational excellence.
Thanks to its close proximity to key decision-makers, partners, and engineering stakeholders, ARX Paris serves as a major center of expertise dedicated to mobility, urban development, and energy transition challenges.
Brief technical overview
Domains
- Tunnel & Underground
- Bridges & other Structures
- Buildings
- Civil engineering
- Airports
- Cableways
- Geology
- Geotechnics & Special foundations
- Metros
- Railways
- Nuclear plants
- Ports / Maritime works
- Digital & Innovation
Main services
- Design
- Consulting / Expertise for Contractor and Owner
- Client representation
- Construction management
- Independent Checking
- General planner
- Project owner support
- BIM
- High level supervision
- Site supervision
- Measurement & Surveying
Phases
- Tender design
- Strategic planning
- Preliminary studies
- Preliminary design
- Final design
- Construction design
- Commissioning, completion
Our skills
Geological & geotechnical assessment
- Geological mapping
- Geological survey
- Geohazard assessment
- Planning, supervising, and interpreting the site investigations campaigns
- Geotechnical characterization
- Ground improvement design
- Tunnel face geological/geotechnical survey
Retaining structures, earthworks & foundations
- Shallow and deep foundation design
- Serviceability and stability check
- Embankment design
- Slope stability verification and monitoring
- Slope excavation support design
- Retaining walls design
- Vertical temporary and permanent support design for shafts and underground stations (dwalls, pile, etc.)
Bridges and civil works
- Rail and Road Infrastructure Design
- Tender, Concept, Preliminary, Detailed Design & Construction Engineering
- Complex Bridge Analysis & Design
- Bridge rehabilitation (strengthening, repairs, etc.)
- Rail Structure Interaction Analysis
- Project Management Consultancy Services
- BIM Modelling & Drafting
- Contractor Support & Engineering Solutions
- Peer review and Independent Checking Engineer
- Value Engineering
Tunnels
- Tender, Concept, Preliminary, Detailed Design & Construction Engineering
- Conventional tunnels design: temporary support and final lining
- TBM tunnels design : steel and fibber reinforced segments
- Face stability analyses & pre-support design
- Cut and cover tunnels design
- Immersed tunnels design
- TBM Tunnel Operational Plan
- Building Damage assessment
- Contours map of induced impacts
- Instrumentation and monitoring design and follow-up
- Back-analyses
Construction Management
- Development of specifications for tenders
- Site works supervision and follow-up
- Contract management & claiming
- Design/Contractors interface and coordination
- Risk assessment and management
- Budget and schedule control
- Stakeholder management and communication
- Onsite quality and HSE assurance control
- Executive design check
- Commissioning and Handover Assistance
- Post-Handover / Defects Liability Period (DLP)
Complex Buildings
- Concept, Preliminary, Tender, Detailed Design & Construction Engineering
- Complex structural Analysis & Design
- Project Management Consultancy Services
- BIM Modelling & Drafting
- Contractor Support & Engineering Solutions
- Peer review and Independent Checking Engineer
- Value Engineering
Technical Coordination and Project Management
- Project Management and Controls
- Interdisciplinary coordination
- Risk Management
- Contracts & Claims
- Site supervision
- Construction Management
Refurbishment of existing structures
- Design of investigation campaign for structural conditions assement
- Structural Condition Assessment a Survey
- Rehabilitation measures for existing structures : design and work-site supervision for tunnels, civil works and bridges
BIM
- BIM Management: ensuring consistent digital processes and collaboration across all project stakeholders
- 3D Modeling & Rebar Detailing: delivering precise and intelligent models for design, analysis, and construction
- 4D & 5D BIM Integration: connecting time (scheduling) and cost management to optimize project planning and monitoring
- Pre-coordination & Coordination: covering technical, architectural and structural aspects to guarantee seamless integration between trades
Key people
Bénédicte Pich
- Head of Bridges Division
Bénédicte Robert
- Head of Projects and Constructions Management Division
Geoffray Lambert
- Head of Buildings & Civil works Division
Khaoula Arhannaj
- Head of BIM Division
