The Solution
To meet the project requirements, the Soleno Team designed five distinct systems using HydroStor® chambers, specifically the HS-31 and HS-75 models chambers across three systems, capable of storing 639 m3 (22,566 ft3) of water during heavy rainfall. Designed for projects with very limited available depth, the HS-31 chamber, which stored a volume of 115.11 m3, was necessary to complete the last two basins, requiring nearly 158 chambers in total.
In each of the 41-row retention systems, approximately 535 HydroStor® chambers were installed on woven polypropylene geotextile to reinforce the ground’s load-bearing capacity. These chambers were then surrounded by clean stone covered with TX-90 nonwoven needled geotextile. Installing Soleno geotextiles at the bottom of the excavation, on the excavation walls, and on top of the systems, is crucial for isolating the clean stone and stabilizing the chambers.