Process for the manufacture of a shaft bottom

Details Process for the manufacture of a shaft bottom Process for the manufacture of a shaft bottom

B - Operations, Transporting

28

B

B28B 7/16 (2006.01) B28B 7/34 (2006.01)

Patent

CA 2522196

The invention relates to a method for producing a concrete shaft bottom which comprises a drain having a defined shape. According to said method, concrete is introduced into a bottom mold (1) that comprises a mold jacket (2) and a mold bottom (3). On said mold bottom (3), a molded body (8) forming the negative shape of the drain is disposed to configure the drain. The aim of the invention is to allow for the inexpensive and mechanized production of a shaft bottom having an individual drain. For this purpose, the molded body (8) is configured from at least one molded piece (9) that is fixed on the bottom mold (1), especially on the mold bottom (3). The molded piece (9) is adapted to the dimensions of the defined shape of the drain and is removed from the shaft bottom once or while the formwork is dismantled from the shaft bottom.

L'invention concerne un procédé pour réaliser le fond d'un puits en béton comportant un drain de forme définie. Selon ce procédé, du béton est coulé dans un moule au sol (1) comportant une enveloppe de moule (2) et un fond de moule (3), sur lequel est disposé un élément de moulage (8) formant le négatif du drain pour façonner le drain. L'invention vise à réaliser un fond de puits doté d'un drain individuel de manière mécanique et peu onéreuse. A cet effet, l'élément de moulage (8) est constitué par au moins une pièce de moulage (9), qui peut être fixée au moule au sol (1), et notamment au fond du moule (3), cette pièce de moulage (9) étant adaptée aux dimensions de la forme définie du drain et extraite du fond du puits après ou pendant le décoffrage du fond du puits.

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