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DRAINMAX on 13.000m² sealed surface

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Project

Fanuc Academy / Germany / 2015

Application

Stormwater attenuation

Products

DRAINMAX tunnel

Planning

Number of tunnels

78 x DM-T-1600-M/60 D-100-10

required stowage volume

180m³

Pore volume backfill material

33%

Area

13.000m²

Requirement for traffic load

SLW30

Description

In this project there was a 7 l/s discharge restriction as a condition. On the basis of a flooding proof, a retention volume of at least 180 m³ was calculated. Due to limited height conditions, the retention body had to be designed very flat. The DRAINMAX tunnel system was chosen. As a partial infiltration of rainwater was not permitted, the complete system was welded into a 2 mm thick PE-HD foil.