Design & Contract Services

Planning phase • Preliminary design • Value engineering/alternative design • Detailed design • Contract document preparation • Design-Build • Design-Bid Build • P3 • CMAR • Pre-bid contract interpretation/evaluation

Geotechnical Engineering

Geotechnical assessment • Preparation of Geotechnical Data Report (GDR) & Baseline Report (GBR) • Foundation design

Structural Engineering

Segmental lining design • Tunnel and shaft concrete lining design • Steel liner plate lining design • Pipe jacking design • Traffic decking design • Structural component design

Tunnel Design/Rehabilitation

Tunnel analysis & design • Tunnel excavation and Initial Support (TBM, NATM/SEM, rock support) • Tunnel face pressure analysis • Tunnel advance rate analysis • Inspection/Rehabilitation • Groundwater control • Ground improvement

Numerical Analysis

Structural and geomechnical numerical modeling (2D and 3D)

Support of Excavation Design

Solider pile and lagging • Deep soil mixing walls • Cement bentonite walls • Sheetpiling • Diaphragm walls Secant/tangent pile walls • Rock shaft initial support system • Groundwater control • Ground improvement

Trenchless Technology

Trenchless technique & ground condition evaluation • Microtunneling, pilot tube, HDD, Jack and Bore • Jacking forces estimation and backstop design

Instrumentation Design/Impact Assessment and Protection of Existing Structures

Condition Survey/Evaluation • Constrution impact assessment and analysis • Mitigation recommendations and design • Instrumentation design and installation

Construction Management

Scheduling • Submittal reviews • Construction monitoring services

Claims Services

Investigative/forensic analysis • Claim review & support • Expert witness services