CASE STUDIES
This project involved the excavation and construction of a new chamber with a concrete base, block work structure, and associated pipework replacements. Our approach ensured safety, compliance, and quality throughout, while adhering to a detailed plan and tight deadlines.
Site Assessment and Excavation
- CAT scanned the works area to locate and mark services to avoid disruption during excavation.
- Marked out and cut for a new chamber with the required dimensions
- Excavated in layers to a depth of 3.2m, ensuring clearance under the existing pipework. Spoil was removed into roll-on roll-off skips.
Temporary Works and Safety
- Supplied and installed temporary works for safety, including edge protection and an escape davit for personnel safety during the excavation.
Chamber Construction
- Installed a 150mm concrete base with 1 mesh reinforcement and a 350mm wide sump in the corner of the new chamber.
- Constructed a 40N blockwork chamber with internal opening dimensions of 2.5m x 2.5m, reinforced with 16mm steel bars tied into the base, with a final height 100mm below ground level.
- Supplied and installed C30 concrete infill to fill the block recesses up to the finished height.
Additional Installations
- Installed bolt-down bollards, finished in black with yellow stripes for visibility and safety.
- Drilled 2 core holes to a depth of 1.8m over existing pipework for replacement.
Finalisation and Handover
The project successfully delivered a high-quality chamber construction with:
A robust concrete base and blockwork chamber that met the specified dimensions and safety requirements.
Safe and clear access for future pipework replacements and maintenance.
Compliance with health and safety protocols throughout the project.
By carefully managing the excavation, construction, and safety aspects, we ensured the client received a reliable and functional chamber, completed to the highest standards.
