by admin-optimum-549 | Sep 23, 2021 | Water
Proud to accompany EIFFAGE yesterday during the successful completion of a 130m-long DN 800 PRV microtunnel in Massy, near Paris, as part of the sanitation network diversions being put in place by the Paris Saclay local authority. The entry / exit shafts were...
by admin-optimum-549 | Nov 2, 2020 | Water
Boring a 530 metre-long, 2.15 metre-wide microtunnel in one of the hardest and most abrasive rocks calls for the highest levels of vigilance. Add to that a 26-metre height difference between the entry and exit points as well as a crossing both a river and the busy...
