Underground Engineering


The subsurface is considered by many to be the most unpredictable of the engineering environments. It cannot be seen and its behavior is difficult to determine. Successful underground engineering requires a practical and theoretical understanding of geotechnical, structural, and groundwater engineering principles; long-term experience in designing, constructing, and monitoring engineered structures; and a thorough understanding of soil and rock conditions. STS’s capabilities in delivering sound underground engineering to its clients are unsurpassed. We consistently provide our clients with:

  • State of the Practice Analyses
  • Benefit of an Extensive Subsurface Database
  • Cost Effective Designs
  • Constructable Solutions
  • Value Added Engineering
  • Construction Cost Savings

STS’s involvement offers a true advantage in developing a project that meets or exceeds the cost performance expectations. Our project managers, geotechnical and structural engineers, and hydrogeologists have one goal in mind: to provide you, our client, with a successfully engineered and constructed project.

Geotechnical Studies
  • Soil Sampling and Testing
  • Strength Evaluation
  • Underground Structure Design Recommendations
  • Utility Identification
Earth Support Systems
  • Lateral Movement Analysis
  • Cost/Benefit Studies
  • Retention System Selection
  • Retention Design
  • Instrumentation and Monitoring
Groundwater Control
  • Flow Studies
  • Groundwater Management System
  • Dewatering Systems
Soil/Structure Interaction
  • Bearing Capacity
  • Settlement Analysis
  • Foundations
  • Tunnels
  • Basements
  • Other Underground Structures