Trevis Ct, Swanbank, Ipswich

The site at Trevis Ct, Swanbank, Ipswich, required critical mine remediation works to ensure site safety and stability. The presence of abandoned underground mine workings posed a significant geotechnical risk to future development, necessitating a proven, engineered solution to prevent surface subsidence.

We deployed our signature Grout Cone Construction technique. This method was selected for its high effectiveness in stabilizing void spaces within abandoned mine workings, providing a permanent, structural barrier against roof collapse.

Our methodology involved precision cased drilling to reach the base of the target mine workings. Each borehole underwent camera inspection to accurately assess the mine condition. We then pumped a high-specification thick grout into the void, systematically retrieving the casing to form a structural cone that achieved full contact with the mine roof.

The primary challenge centered on maintaining hole stability during cased drilling within the complex mine environment. We resolved this through meticulous drilling practices and rigorous QA/QC protocols, ensuring that every grout cone was constructed exactly to the specified dimensions and structural requirements.

The successful installation of the grout cones has effectively eliminated the risk of sinkholes and surface subsidence associated with the underlying historical mining activities. The site is now fully stabilized, allowing DC Construction to proceed with their development plans with complete confidence in the foundation’s integrity.