ARX Paris

Global Expertise, Local Presence – delivering engineering solutions with deep regional insight

We are a network of engineers working for major public and private clients, offering our services in the field of complex infrastructure design for large-scale projects involving metros, railway lines, airports and industrial buildings.

We support our clients from the early stages of their projects through their construction and completion.

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
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