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Subsurface Investigations
- Shallow & Deep Foundation Systems
- Retaining Walls
- Flexible & Rigid Pavement Design
- Soils Related Construction Procedures
- Slope Stability
- Groundwater Control & Drainage
- Soil Permeability
- Hard Rock Tunneling
- Field Engineering
- Drilling
TTL determines the best and most economical design and construction recommendation solutions when sites contain poor soil conditions.All tests are in accordance with recognized standards.
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