| 摘要 |
<p>In a process for the manufacture of a shaft bottom made of concrete and comprising a chute of a predetermined shape, concrete is introduced into a bottom mould (1) comprising a mantle (2) and a mould bottom (3), on which a moulded body (8) forming the negative mould of the chute is arranged on the mould bottom (3) for the formation of the chute. In order to permit an inexpensive and mechanical production of a shaft bottom comprising an individual chute, the moulded body (8) is formed from at least one moulded piece (9) which can be fastened to the bottom mould (1), in particular to the mould bottom (3), which moulded piece (9) is adjusted to the dimensions of the predetermined shape of the chute and is removed from the shaft bottom after or simultaneously with stripping the formwork from the shaft bottom (Fig. 1).</p> |
