ABSTRACT
In 2020 Studio Speri was engaged by Enel Green Power in the design of the maintenance project of the Sillico reservoir, located in Tuscany, in the district of Lucca (Italy). The aim of the work is the rehabilitation of the reservoir impervious facing. The existing facing, made of concrete slabs, has failed due to differential foundations settlements. The reservoir has already experienced cracking of the concrete facing several times in the last years, without solving the problem definitively. The present designed and built solution consist in waterproofing by a flexible geosynthetics impervious facing system. The impervious facing is composed by a composite geomembrane liner (PVC geomembrane + geotextile) coupled with a composite geodrain (geonet + geotextile).
