| 摘要 |
Device for on-site concrete casting a waterworks well or a vat. First a bottom (2) is cast. Then a slotted steel mould ring (3) is fit on the bottom and is equipped with radial support elements. Then a prefabricated concrete ring is fit on the support elements and a slotted external mould ring is mounted on or outside of the bottom plate (2) with subsequent casting of the vat walls. The device (1) comprises an outer mould ring (4) of steel sheeting material that is vertically slotted (19) and has locking devices (20, 21) for the slots (19) as well as an inner mould ring (3) of steel sheeting material that is also vertically slotted and has locking devices for the slots. At least one of the rings has vertical rows of holes (13). On the inside (outside) of the inner ring (outer ring), a pipe (11) is fixed right in front of each row of holes. The pipe has two rows of holes (12) that are situated in front of each other and cover the holes (13) of the inner ring (3) and outer ring (4).<IMAGE> |
