OTB are skilled in the design and construction of all types of shafts, piled boxes, deep excavations, and cofferdams.
- Shapes: Circular, Oval, Elliptical, Rectangular, quadrilateral
- Forms: Bored Piles, Sheet Piles, Segmental (PCC), SCL, D-wall, Timber
- Functions: Cofferdams, basements, lift shafts, access shafts.
We offer a method led design, choosing the appropriate form of construction and sequence to suite the individual site conditions and constraints. We have developed numerous novel excavation sequence using hybrid supports. We offer a full range of design of service including:
- Geotechnical assessment and interpretation.
- Geotechnical and structural design.
- Design of temporary propping.
- Construction sequencing.
- Temporary support to existing structures.
- Ground movement assessment.
- Monitoring specification and interpretation.
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