Vaujours (93)
RD 84
Route de Courtry
93410 Vaujours
GPS coordinates :
48.933681, 2.602302
Backfilling an active underground quarry
Types of layout
Securing underground galleries
Issues :
Securing the site
Project presentation
Securing the Placo® quarry in Vaujours by recycling excavated soil.
Thanks to its experience in backfilling quarries, ECT adapts its activity to the operating conditions laid down in the prefectoral authorization: extraction progress, quality of materials, required compaction.
ECT manages the complete traceability of the flow of materials entering the site (grid plan), as well as the quality of the materials used for backfilling.
ECT’s intervention is part of a dynamic of joint activity, through :
- adoption of quarry safety procedures
- anticipating and adapting the backfill phasing to the quarry’s extraction activity
Key figures
2019
Installation of the soil unloading platform
minutes
Soil unloading on the platform
Project life
Organized lunch in an old souchet
February 2023 – An incredible lunch was organized by David Robert, ECT site manager in charge of backfilling the Placo/St Gobain de Vaujours quarry, and Mathieu Noël, the operations manager.
Customer innovation: unloading platform
December 2019 – At the Placo® quarry in Vaujours, ECT has innovated to offer its earthworker customers a more complete and secure service. Installed and inaugurated at the end of 2019, a platform outside the quarry optimizes the soil unloading process. In just 8 minutes, our customers can unload their goods in complete safety.
Introducing the Bas Mining 10X4 fleet
The soil dumped on the platform is then loaded onto one of ECT’s Bas Mining 10X4 trucks. These “pusher trucks” can carry up to 50 tonnes of earth, which is used to secure the quarry using a clavage technique.
Discovering underground galleries
Underground quarries are rehabilitated at the same time as operations. The galleries are backfilled to the ceiling with inert soil. The maximum height of the galleries at Vaujours can reach 17 m.
