Internal bracing systems use horizontal or inclined struts to support excavation walls. These systems are particularly effective for wide excavations or where tie-back installation is not feasible due to property line constraints or underground obstructions.
Where It Works Best
- Urban excavations with property constraints
- Transit cut-and-cover tunnels
- Sites with underground utilities
- Excavations near existing foundations
Key Benefits
- No encroachment beyond property lines
- Effective for wide excavations
- High stiffness for deformation control
- Works where tie-backs cannot be installed
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