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Drainage near the Rhone, Lyon, France

The Project:

The project is based in the downtown of Lyon and at the corner of a crossroads. Urban density is high and the lanes are nearby. The site is located approximately 350m from the Rhone river. The work consists of creating a well-point system about 1,2 m deep, so that the soil reinforcement can be completed and the excavation of bottom material be excavated properly after the rubble have become dry.


The Problem:

The complexity of the project is caused by continuing reinforcement of the soil under the groundwater level and excavation of rubble to allow the creation of a second level of basement. All these works can only be carried out in a dry environment, it was necessary to establish a system of continuous pumping during the work under this condition.


The Solution:

Our client has completed the installation of strainer wells and four Contractors' pumps Tsurumi KRS822 were implemented. They pump about 200 m3/h to 23m of head. The wells are connected by pipes of DN150. This facility operates 24/7 and it is under constant surveillance. To date no action on the pumps had to be done.

In het geval van schurend en corrosief gebruik, zullen bepaalde componenten van nature sneller verslijten. Met betrekking tot bovenstaande toepassing kan slijtage met name optreden in de waaier, de roerder, het zuigdeksel, de asbus, de oliering, de mechanische asafdichting,het pomphuis, de zuigkorf, de motorbehuizing en de afvoerkoppeling. Afhankelijk van de werkingsomstandigheden kan de levensduur van die onderdelen aanzienlijk variëren en kan deze korter zijn dan de wettelijke garantieperiode.
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