Remediation of Uncontrolled Inflows in Deep Excavations
Uncontrolled groundwater inflows caused by technical failures pose a significant risk to deep excavations, impacting safety, programme, and cost. These inflows may result from defects in retaining systems, diaphragm wall joints, pile integrity issues, or failures in temporary works and waterproofing measures.
The team specialises in the assessment, control, and remediation of uncontrolled inflows in complex ground conditions. They combine site investigation, forensic engineering, and practical remediation techniques to stabilise excavations and restore construction progress safely and efficiently.
Approach
- Rapid identification of inflow sources and failure mechanisms
- Risk-based assessment to protect excavation stability and adjacent assets
- Design and implementation of targeted remediation solutions
- Close collaboration with contractors and designers to minimise disruption
Typical Remediation Techniques
- Targeted grouting (chemical, cementitious, or microfine)
- Sealing of construction joints and defects
- Localised ground improvement
- Temporary and permanent groundwater control measures
By addressing the fundamental causes of technical breakdowns, clients can lessen delays, control expenditures, and ensure the lasting functionality of underground structures.
Abstract Below:
