| 摘要 |
The invention relates to a prefabricated reinforced-concrete panel for erection of the liquid-manure cellar of box pens for cattle, which is constituted in such a manner that it can be used both for erecting the cellar walls and for erecting the cellar ceiling. This multipurpose structural element is characterised in that it has on one longitudinal side of the panel an angular flange which, in the panels used for the cellar walls, serves as support for the ceiling panels and, in the panels used for the cellar ceiling, as upwardly projecting limit bead for the different regions of the pen bottom, such as lying boxes, walkways, fodder passage and feeding troughs, the panels intended for the walkways being provided with narrow slots.
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