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Home > News and agenda > Canal sealing: a challenge being prepared now in Cizancourt
Throughout September 2020, the Société du Canal Seine-Nord Europe is carrying out work to build a 500 m² test basin in Cizancourt in the Somme. Once commissioned, this basin is intended to host a series of life-size leak tests. The works are taking place 1km from Cizancourt, on an agricultural plot located near the intersection between the A29 and the Somme canal. They will end in October 2020.
For 12 months, the instrumentation will measure:
Additional checks will be carried out by disbursement – or excavation – of the different layers.
The works carried out in Cizancourt are managed by the Société du Canal Seine-Nord Europe, supported by the Groupement Bouygues, Razel and ISL Ingénierie.
The Seine-Nord Europe Canal will be designed according to the principles of water saving and resource conservation. It will be fed from the Oise, by pumping from surface water. No sampling will be carried out in the water table. As a canal intended for navigation, the Canal Seine-Nord Europe will be a hydraulic system which will ensure a sufficient water supply so that it can be used by barges and other boats throughout the year, whatever climatic hazards (heavy rain or high heat). Once filled, the water level of the canal will be continuously monitored and managed. The aim is to guarantee optimal navigation conditions, while saving water. Nevertheless, like all watercourses (rivers, rivers, etc.), the water supply of a canal will be subject to two hazards: evaporation during periods of high heat, and losses by infiltration into the structure itself. infrastructure. As the environmental ambition of the Seine-Nord Europe Canal is to preserve water resources as much as possible, innovative solutions have been devised to seal the future Canal. It is these solutions in the making, both natural and effective, that will be tested in Cizancourt.
107km of Canal means 5 to 6 million square meters which will have to be made watertight. The challenge is to implement the most sustainable solutions wherever possible, with optimal materials management as a guideline. In particular, this involves using the natural properties of the soil, reusing the cuttings from the excavation work, while seeking to limit the transport of these materials.
Thus, to avoid any interaction with groundwater and limit the filling phases, the Société du Canal Seine-Nord Europe plans to alternate two complementary methods:
Positioned halfway between Compiègne and Aubencheul-au-Bac, the Cizancourt site has several advantages:
Find the timelapse of the works on https://www.devisubox.com/dv/dv.php5?pgl=Project/interface&sRef=76ZJ2LOCQ
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