Sewerage Oosterring Genk

An innovative sewerage project is being carried out along the Oosterring in Genk. The goal is to replace an outdated sewer system that serves nearly 10,000 residents with a new collector. This new system will be laid parallel to the existing one to minimize disruption. Advanced techniques such as pipe jacking and a sustainable approach are used to limit environmental impact and contribute to efficient and future-proof water purification.

Pipe Jacking

Pipe jacking is a crucial and technically challenging part of the new connecting sewerage along the Oosterring in Genk. This method allows pipes with diameters from 800 mm to 2000 mm and lengths up to 455 meters to be laid underground without surface excavations, minimizing impact on traffic, residents, and surrounding infrastructure. A special feature is the use of a 2.5-meter diameter drill head, a rare and advanced technique in Flanders, used for complex crossings. This precision technique requires extensive planning and specialized support.

Sustainability and Innovation

The project uses mains electricity to power drilling installations, significantly reducing environmental impact compared to traditional diesel generators. This choice avoids the emission of 1,200 tons of CO₂ during the works and reduces noise pollution, contributing to a more pleasant working environment for both workers and residents.

Reuse of Bentonite Slurry

During pipe jacking, bentonite slurry is produced, a mixture of bentonite clay and groundwater used to reduce friction and provide stability during drilling. Instead of disposing of this slurry as waste, it is dewatered on-site using specialized equipment, allowing the bentonite to be reused in the drilling process. This circular approach promotes both ecological and economic sustainability during the works.