Categories for Technical

for the city of Nantes, which is burying its high-voltage lines as part of commercial venture.  MESIL (which stands for ‘mise en souterrain par initiative locale’ – placing networks underground at the initiative of local authorities) is the name given by RTE (the Electricity Transmission Network) to projects undertaken at the request of local communities. In the Beaujoire neighbourhood, at the request of the city of Nantes, SADERTELEC is undertaking two MESIL projects for RTE to bury overhead lines in this area to allow for the expansion of a shopping centre. MESIL 1 – a tricky business… RTE commissioned SADERTELEC… +

for an easy-peasy solution that has made all the difference! Frozen-veg specialist GELAGRI entrusted SADE with the rehabilitation of the process-water equalising tank at its production site in Loudéac, Côtes d’Armor. A huge project whose timescale depended on the ripening of peas. Proposal of a customised solution To ensure both the water-tightness of the 6,000m3 tank and the recovery of the considerable amount of matter suspended in the vegetable washing water, SADE Engineering and the Rennes Regional Division designed and sized a decanting channel comprising a damping chamber and two decanting compartments that are successively refilled by overflows, over the… +

including redeployment of its wastewater systems from now to 2050. The cliffs in Ault are regularly retreating, under repeated attack from the sea wearing them away from the bottom, and rainwater infiltration eating away at them from the top, plus the combined effects of freezing and thawing. According to estimates, in some places, they are losing 30 to 50m every 100 years. Faced with this danger, the town was added to the Picardy cliffs risk prevention plan (prefectural order of 6 June 2013), which addresses the risk of coastal erosion and predicts changes to the coastline, as well as making… +

An environmentally-responsible project for the Dunkirk Urban Authority. In recent years, since the enactment of the GEMAPI law (for the management of marine areas and flood prevention), the Dunkirk Urban Authority (CUD) has given priority to a global survey of its facilities located alongside coastlines and aquatic environments. It has established a long-term action plan for all the necessary upgrading and modernisation works to these facilities. In the municipalities of Grand-Fort-Philippe and Gravelines, the rip-raps and embankments of the Aa channel form part of this maintenance and renovation plan due to their advanced state of deterioration. The most frequently observed… +

Congratulated by CASQY, one of the project managers. In the vicinity of Trappes, the RD10 departmental road, also known as the ‘Nationale 10’, is soon to ‘vanish’. It will be placed underground, a task involving considerable preparatory works, including the rerouting of water supply and wastewater networks, entrusted to the Normandy Regional Division by their respective project owners, SMG SEVESC and the Saint-Quentin-en-Yvelines Local Authority (CASQY). An impressive task…but not for SADE! Water supply network Rerouting the water supply networks required the laying of 725m of 150mm-diameter cast-iron tubes using conventional techniques and 1,500m of 600mm-diameter using trenchless works to… +