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Type of installation: inground (mod. J-4000 4,72 m/16 ft.)
ground
level
~ 60 cm*
(wide crawl
Notes:
20
side view / cross section
hollow concrete block with steel re-bar
and poured concrete in cavity space
way)
steel
frame
support
** concrete
steel
frame
support
casting
formwork
472 cm*
steel
frame
support
Minimum 20-25 cm of crushed stone
(stone size: 2-2,5 cm)
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