5.10 Backfill the excavation pit
Fill the excavation pit with suitable filling material (ballast
with size 0/16 grain, 50 cm all round), whilst compacting
the filling material properly (e.g. with a vibrating plate) to
Dpr ≥ 95% every 30 cm.
For proper fastening, surround the base section with lean
concrete (see lean concrete wedge in the figure).
EN
016-102_01 DE_EN_FR Pumping station / Installation and operating manual 73 / 144
To Next Page
Loading...
