The 5.8m vertical extension required alignment and installation of new precast concrete risers, with the gap between the inner and outer walls pressure-grouted to ensure structural integrity and prevent groundwater infiltration. The works also included HDPE internal linings, an epoxy-coated exterior, and the installation of associated steel pipework, ladders, and access landings.
Operating within a live landfill environment, the project presented unique challenges, including confined space work and potentially explosive atmospheric conditions within the fill zone. We implemented strict safety protocols, including continuous gas monitoring, controlled entry procedures, and non-sparking tools to mitigate risks. The project was delivered on time and within budget in under two weeks.
