EP1613453B1 - Verfahren und vorrichtung zum herstellen eines schachtbodens sowie eine gruppe von formstücken - Google Patents

Verfahren und vorrichtung zum herstellen eines schachtbodens sowie eine gruppe von formstücken Download PDF

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Publication number
EP1613453B1
EP1613453B1 EP04723451A EP04723451A EP1613453B1 EP 1613453 B1 EP1613453 B1 EP 1613453B1 EP 04723451 A EP04723451 A EP 04723451A EP 04723451 A EP04723451 A EP 04723451A EP 1613453 B1 EP1613453 B1 EP 1613453B1
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EP
European Patent Office
Prior art keywords
channel
moulding elements
moulded article
mold
mould
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP04723451A
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German (de)
English (en)
French (fr)
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EP1613453A1 (de
Inventor
Johann SCHLÜSSELBAUER
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Individual
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Individual
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Priority claimed from DE2003117321 external-priority patent/DE10317321B4/de
Priority claimed from AT6532003A external-priority patent/AT500886B8/de
Application filed by Individual filed Critical Individual
Priority to SI200431589T priority Critical patent/SI1613453T1/sl
Priority to PL04723451T priority patent/PL1613453T3/pl
Publication of EP1613453A1 publication Critical patent/EP1613453A1/de
Application granted granted Critical
Publication of EP1613453B1 publication Critical patent/EP1613453B1/de
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B7/00—Moulds; Cores; Mandrels
    • B28B7/38—Treating surfaces of moulds, cores, or mandrels to prevent sticking
    • B28B7/388—Treating surfaces of moulds, cores, or mandrels to prevent sticking with liquid material, e.g. lubricating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B7/00—Moulds; Cores; Mandrels
    • B28B7/16—Moulds for making shaped articles with cavities or holes open to the surface, e.g. with blind holes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B7/00—Moulds; Cores; Mandrels
    • B28B7/16—Moulds for making shaped articles with cavities or holes open to the surface, e.g. with blind holes
    • B28B7/168—Moulds for making shaped articles with cavities or holes open to the surface, e.g. with blind holes for holders or similar hollow articles, e.g. vaults, sewer pits
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B7/00—Moulds; Cores; Mandrels
    • B28B7/16—Moulds for making shaped articles with cavities or holes open to the surface, e.g. with blind holes
    • B28B7/18—Moulds for making shaped articles with cavities or holes open to the surface, e.g. with blind holes the holes passing completely through the article
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B7/00—Moulds; Cores; Mandrels
    • B28B7/28—Cores; Mandrels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B7/00—Moulds; Cores; Mandrels
    • B28B7/28—Cores; Mandrels
    • B28B7/30—Cores; Mandrels adjustable, collapsible, or expanding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B7/00—Moulds; Cores; Mandrels
    • B28B7/34—Moulds, cores, or mandrels of special material, e.g. destructible materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B7/00—Moulds; Cores; Mandrels
    • B28B7/34—Moulds, cores, or mandrels of special material, e.g. destructible materials
    • B28B7/342—Moulds, cores, or mandrels of special material, e.g. destructible materials which are at least partially destroyed, e.g. broken, molten, before demoulding; Moulding surfaces or spaces shaped by, or in, the ground, or sand or soil, whether bound or not; Cores consisting at least mainly of sand or soil, whether bound or not
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B7/00—Moulds; Cores; Mandrels
    • B28B7/34—Moulds, cores, or mandrels of special material, e.g. destructible materials
    • B28B7/346—Manufacture of moulds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B7/00—Moulds; Cores; Mandrels
    • B28B7/34—Moulds, cores, or mandrels of special material, e.g. destructible materials
    • B28B7/348—Moulds, cores, or mandrels of special material, e.g. destructible materials of plastic material or rubber
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B7/00—Moulds; Cores; Mandrels
    • B28B7/36—Linings or coatings, e.g. removable, absorbent linings, permanent anti-stick coatings; Linings becoming a non-permanent layer of the moulded article
    • B28B7/364—Linings or coatings, e.g. removable, absorbent linings, permanent anti-stick coatings; Linings becoming a non-permanent layer of the moulded article of plastic material or rubber

Definitions

  • the invention relates to a method for producing a manhole having a predetermined shape concrete shaft floor, in which in a bottom mold with a mold shell and a mold bottom, at which mold bottom to form the channel a negative shape of the channel forming molding body is placed, concrete is introduced in which the shaped body is formed from at least one fitting attachable to the bottom mold, in particular to the mold bottom, which mold is adapted to the dimensions of the predetermined shape of the channel and is removed from the bottom of the manhole after stripping the shaft bottom, and a device for Producing such a shaft bottom, a shaped body for this purpose and a shaped piece for producing the shaped body.
  • Manhole bottoms provide the bottom seal of generally vertical manholes that provide access to sewer systems, such as sewers, and underground pipe systems. Such wells are often located in interfaces of conduits, i. at channel branches or outlets and junctions of secondary channels, etc.
  • the bottom of such shafts forming shaft bottoms are cup-shaped structures with a relatively thick-walled dense bottom and a mostly cylindrical side wall in which connection openings for the tubes and / or channels are formed.
  • connection openings for the tubes and / or channels are formed in the shaft bottom run open at the top, referred to as channels channels of mostly semi-circular or approximately U-shaped cross section between the respective provided in the side wall of a shaft bottom connection openings.
  • the channels In order to ensure a jam-free flow of the frequently contaminated with significant amounts of large-scale solids liquids, the channels have a certain slope and the bottom of the shaft called a berm appearance of low slope.
  • the shafts are constructed of standardized individual rings, the shaft bottoms are individually designed components which differ from one another with regard to the positioning of the connection openings acting as inlets and outlets, the cross-sectional shape of the channels and the pipes to be connected.
  • only high-quality, liquid-tight concrete may be used for the production of manhole bases and in particular their channels.
  • a further method for producing a shaft bottom prefabricated plastic molded parts are used with a negative mold corresponding to the channel, wherein for each individual channel a separate molded part is to be made, which is to be fixed on the mold bottom.
  • These moldings are made as plastic shells relatively expensive for each individual channel according to the course of the channel and remain as a so-called lost form in the finished channel.
  • a disadvantage of this method in addition to the high price of designed as a high-quality plastic shells moldings and the necessary production of external suppliers, which significantly complicates the entire logistics of mechanical production of manhole bases.
  • the invention aims to avoid these disadvantages and difficulties and has as its object to enable the production of manhole bottoms with individually shaped channels in a simple manner and without much time and cost.
  • the channel should also be made of high-quality concrete, namely a concrete that is equivalent to the shell or bottom of the shaft floor, be produced.
  • the above object is achieved by a method for producing a concrete manhole bottom having a predetermined shape according to claim 1, an apparatus for producing a concrete manhole bottom having a predetermined shape according to claim 15 and a group of moldings for producing a concrete Shaped body according to the method of claim 23.
  • the invention proposes a method for producing a channel having a predetermined shape concrete floor, in which in a bottom mold with a mold shell and a mold bottom, at which mold bottom to form the channel a negative shape of the channel forming molding is placed concrete is introduced, wherein the shaped body formed from shaped pieces and attached directly to the bottom mold between opposite sides of the mold shell or the mold base and is removed after or with the stripping of the shaft bottom of the shaft bottom.
  • the method according to the invention is characterized in that the shaped pieces consist of a material which withstands the pressure during the filling of the concrete and is produced from a foam, a rigid foam plastic, a thermoplastic foam or from plastic.
  • the shaped body with the predetermined negative shape of the channel is inventively formed from two or more fittings, which are adapted to the dimensions of the predetermined shape of the channel.
  • the method comprises the steps of selecting two or more shaped pieces from a plurality of shaped pieces of different shape with rectilinear and arcuate longitudinal extent, cutting the two or more selected shaped pieces to fit the dimensions of the predetermined shape of the trough, and assembling the two or more selected fittings with rectilinear and / or arcuate longitudinal extent to the molding, wherein the individual moldings are connected to each other to form the molding or are attached to the formation of the molding individually on the mold bottom.
  • the molded body is formed from at least two moldings formed directly on the bottom mold between mutually opposite sides of the mold jacket or on the mold bottom, forming a core to be removed from the bottom of the cavity.
  • the shaped pieces consist of a material which withstands the pressure during the filling of the concrete and are produced from a foam, a rigid foam plastic, a thermoplastic foam or from plastic.
  • the shaped pieces are adapted to the dimensions of the predetermined shape of the channel, wherein the shaped body consists of two or more prefabricated form pieces, which have a rectilinear and / or arcuate longitudinal extent and a cross section corresponding to the shape of the cross section of the channel and tailored according to the geometry of the shaped body and are assembled to the shaped body, wherein the individual fittings are connected together in the bottom mold or individually attached to the mold bottom.
  • a group of shaped pieces for producing a shaped body forming a negative mold of a channel bottom of a well bottom, characterized that the fittings are made of the pressure of the concrete-holding foam, rigid foam plastic, thermoplastic foam or plastic, and the group of fittings of shaped pieces with straight longitudinal extent and shaped pieces with arcuate longitudinal extent, wherein the cross section of the shaped pieces corresponds to a cross section of the channel.
  • the invention thus enables a method and an apparatus for producing a manhole bottom of concrete having a predetermined shape, wherein two or more of a set of less simple basic body, the above-mentioned group of moldings, which consists of shaped parts respectively rectilinear or arcuate longitudinal extent Fittings can be selected, cut and assembled to realize individual channel geometries easily, with little time and cost.
  • a particular advantage of the invention is the fact that the manufacturer of the shaft bottom can produce the shaped body itself according to the requirement of the produced channel, u.zw. by simply forming the molded body from him ready prefabricated fittings whose cross-section corresponds to the cross-section of the channel to be produced.
  • the shaped body is formed from two or more shaped pieces, wherein advantageously shaped pieces are kept in stock, namely shaped pieces of different shape, such as. Fittings with straight or curved longitudinal extension.
  • a shaped piece or a plurality of shaped pieces are cut to suitable lengths and assembled to form a shaped body, as required
  • Combination of rectilinear and arcuate shaped pieces advantageously any shapes of Formkörpem can be generated.
  • the molded article is attached to the bottom mold, e.g. clamped between opposite sides of the mold shell or directly attached (glued and / or screwed) to the mold bottom, it being possible to join the individual moldings together, e.g. by gluing, or to attach individually to the mold bottom.
  • the invention makes use of the fact that the sewage pipes to be connected to a shaft bottom have standardized diameters on which the cross-section of the flumes depends, so that even with complicated shapes of the flute with a small number of fittings of different cross-section, the Aus GmbH is found to These fittings can produce a negative shape of the channel.
  • a simple adaptation of the molded body to the mold bottom, in particular in the case of more complicated channels, is characterized in that the molded article formed from a plurality of moldings initially has a dimension exceeding the bottom surface of the mold bottom and is adapted to the circumference of the mold base after being fixed to the mold bottom, wherein the Mold bottom is preferably separated from the mold jacket during this process.
  • the channel slope also depends on the local conditions on a construction site, not only the course of the channel, but also the channel slope through the Fittings are specified.
  • a height adjustment is also carried out on the fittings in accordance with the depth and / or the slope of the predetermined shape of the channel. This can be achieved in a simple manner in that the fittings are prefabricated with a correspondingly greater height than the required Gerinnetiefe, so that the cut pieces can be removed in the area of the support surface of the mold surface facing top surface according to the channel slope, for example, cut off.
  • the predetermined by the mold bottom inclination of the tread surface (Berme) of the shaft bottom is taken into account by an additional processing of the attachment surface of the fittings.
  • the recess body are provided on the outside before the introduction of concrete with a circumferentially extending seal according to a preferred variant.
  • the part of the seal that protrudes beyond the circumference of the recess body is then anchored in the concrete, whereas the actual sealing lip, which was initially surrounded by the recess body, is exposed after removal of the recess body.
  • this is provided before inserting the concrete with a release agent, this being suitably formed by at least one foil placed around the shaped body and / or at least one band placed around the shaped body, which band is preferably provided in a corresponding to the cross section of the band recess of the molding forming the form piece.
  • a variant is characterized in that the separation aid is formed by at least one heating element provided in the shaped body. This allows at least a simple division of the molding.
  • the removal of the shaped body after stripping the shaft bottom takes place in that a wedge-shaped piece is cut out of the molded body, whereupon the remaining molded body parts are folded under release of the contact with the concrete and easily lifted out of the flume.
  • An apparatus for producing a manhole having a predetermined shape concrete shaft floor by means of a bottom mold with a mold shell and a mold bottom, on which a negative mold of this channel forming moldings is arranged to form the channel, is to solve the problem underlying the invention with the Characteristics of claim 15 is formed.
  • the device can be used both for shaking and for pouring the concrete.
  • the molded body is expediently composed of two or more prefabricated shaped pieces, wherein the prefabricated shaped pieces have a straight and / or arcuate longitudinal extent and a cross section corresponding to the shape of the cross section of the channel.
  • the shaped pieces are formed from a foam, such as a lightweight rigid foam plastic or thermoplastic foam, such as EPS, or plastic.
  • a particularly simple consideration of the required slope of the channel can be accomplished that the mold bottom has a flat, but inclined to form a berm bottom and that the molding has a flat with the mold bottom directly into contact base surface.
  • a mold bottom is used with an inclined to form the Gerinnege manys landing surface, it is recommended that the mold bottom, in particular the inclined part of the same, to make interchangeable in order to consider by changing the mold bottom different inclinations of the channel slope.
  • the radial distance from the mold bottom to the mold shell bridging recess body are preferably provided at the ends of the molded body, which are expediently also formed from a lost core-forming bodies, preferably on the outside with a circumferentially extending seal are provided, which seal projects with a foot radially beyond the recess body, the sealing part (sealing lip), however, is inserted into the recess body.
  • the recess bodies are adapted at their ends adjoining the molded body as well as at the ends reaching the mold jacket in accordance with the gradient of the channel.
  • the shaped body is preferably composed of molded pieces of a lightweight foam, such as a rigid foam plastic, or a thermoplastic material, such as EPS.
  • the shaped body is supplemented at its ends in each case with a negative mold of a pipe connection forming recess body, wherein the recess body advantageously also from a lost core forming body, preferably also from a lightweight foam, such as rigid foam plastic, such as EPS, or a thermoplastic material , is formed.
  • a lightweight foam such as rigid foam plastic, such as EPS, or a thermoplastic material
  • a particularly simple way of attaching a seal on the shaft bottom for the connection of pipes on the flume can be accomplished, that the recess body is provided on the outside with a same over the circumference extending seal which protrudes radially with a foot part over the recess body whose seal However, sealing part is inserted in the recess body.
  • the recess body are advantageously adapted at their ends in accordance with the predetermined gradient of the channel.
  • Moldings for forming the molded body are made of foam, in particular rigid foam plastic or thermoplastic foam, such as EPS, or made of plastic and expediently have a rectilinear or arcuate longitudinal extension, wherein the cross section corresponds to the cross section of the channel, and optionally the height of Cross-section of the fitting is sized larger than the height of the cross section of the channel.
  • the prefabricated fittings ensure the mechanical production of manhole bottoms with channels predetermined cross-section without elaborate mold work It must be ensured only for a seamless transition between individual fittings. For this purpose, any joints between the fittings or between the fittings and the mold bottom or to the Aussparungs foundede be covered and / or filled with a joint filler.
  • the profile pieces can not only frontally, but also in the area of the tread of the mold bottom facing attachment surface in any way with the help of a heating wire in a relatively simple way cropped.
  • the feed of the heating wire can be controlled mechanically depending on the respective required shape.
  • a preferred embodiment of a shaped piece is characterized in that the shaped piece on its surface forming the channel has a recess for inserting a strip provided as a separating aid.
  • a suitable variant is characterized in that in the fitting at least one heating wire for the purpose of dividing and / or separating out a part thereof, preferably a wedge-shaped part, is provided.
  • the apparatus for producing a shaft floor made of concrete has a bottom mold 1, which is composed of a mold jacket 2 and a coaxial mold bottom 3, which is pot-shaped and forms a bottom 4.
  • This mold bottom 3 is arranged on a frame-like support frame 5, the coupling lugs 6 has.
  • the mold shell 2 is provided with similar coupling tabs 7, so that the mold shell 2 with the mold bottom 3 via the coupling lugs 6 and the coupling tabs 7 not only coupled together, but also can be connected to a turning device to the shaft bottom after manufacture before curing to be able to demould.
  • a shaped body 8 is arranged to form a channel, which consists of straight fittings 9 and circular arc-shaped fittings 10 (see. Fig. 4 ) and releasably connected to the bottom 4 is connected.
  • fittings 9 and 10 recess body 11 are connected to the inlets and outlets, which rest after assembly of the mold base 3 with the mold shell 2 on the mold shell 2.
  • the bottom mold 1 can then be placed with upwardly facing bottom 4 on a vibrating table to shake the concrete 12 in the upwardly open bottom mold 1.
  • the channel of the shaft bottom is formed, in a uniform over the entire shaft bottom concrete quality.
  • a bottom pallet 14 is placed on the bottom mold 1 and connected to the mold shell 2, so that the bottom mold 1 turned and the shaped manhole bottom can be deposited with down-facing shaft bottom on the bottom pallet before the chess bottom is removed from the mold.
  • the shaft bottom of the mold shell 2 and the mold bottom 3 are detached from each other, so that the mold bottom 3 can be deducted from the shaft bottom 2 in front of the mold jacket.
  • the molded body 8 must be adapted to the respective requirements of the channel guide in the shaft bottom for a machine production of manhole bottoms , This is achieved by prefabricated fittings 14, 15, as in the Fig. 5 to 7 are shown. These prefabricated shaped pieces 14, 15 correspond in their profile cross section the required cross section of the channel, which in turn must be adapted to the nominal diameter of the subsequent sewer pipes, so that with comparatively few cross-sectional shapes for the prefabricated fittings 14 and 15 Aus GmbH can be found.
  • the fittings 14 and 15 can be prefabricated with a height h exceeding the Gerinnetiefe, so that the shaped pieces 14 and 15 can preferably be removed or cut in a wedge shape after being cut to length on the floor 4 facing side, as can be seen from Fig. 8 for that in the Fig. 2 diametrically continuous molding 9a through the separation surface 16 can be seen.
  • the bottom 4 is provided, for example, with roof surfaces 17 sloping from one diameter to both sides, wherein the section line 18 of the two roof surfaces 17 running along a diameter is aligned in the direction of the channel course.
  • the processed in terms of its attachment surface 19 fitting 9a is in the Fig. 9 shown in cross section.
  • the mold piece 9b which is perpendicular to the mold piece 9a is likewise to be machined with respect to the required slope for this chute portion. Because of its arrangement on only one of the two roof surfaces 17 can be considered on the inclination of the separating surface 16 at the same time the inclination of the berm, as the Fig. 10 can be removed. In this case, the separating surface 16 already forms the attachment surface 19. As has already been stated, the end face of the molding 9b facing the molding 9a is to be trimmed in accordance with the cross-sectional shape of the profile piece 9a. In the Fig. 10 the relevant cut surface is denoted by 20.
  • the fittings 9a and 9b can now according to the diagram after Fig. 11 be joined together and trimmed at the free end faces corresponding to the cylinder jacket of the cup-shaped mold bottom 3, to be subsequently placed on this and connected to this.
  • the attachment of the machined fittings 9 a and 9 b on the floor 4 can be done in different ways, because it is only about the fittings 9 and 10 to secure against displacement on the floor 4.
  • the fittings 9a and 9b can be screwed through the bottom 4 therethrough.
  • Fig. 3 which shows the mold bottom 3 without mold jacket 2, a channel with a radially continuous section and two sections opening at an acute angle to be made.
  • a channel with a radially continuous section and two sections opening at an acute angle to be made For this purpose, in turn, only straight fittings 14 are required, which must be cut to length and trimmed accordingly.
  • Fig. 3 can be removed, it is by no means necessary to specify uniform cross-sectional dimensions for the Gerinnemaschine.
  • the joints or intersections can be filled with a joint filler and / or covered accordingly, as shown in the Fig. 3 is indicated in the transition region between the fittings 9 by the reference numeral 21.
  • Fig. 4 shows a shaped body 8 for a channel course, which contains a bow.
  • a circular arc-shaped fitting 15 is required, which is cut to length according to the required length on the fitting 10 between the two straight fittings 9. Because of the frontal juxtaposition these fittings 9 and 10 is to provide only an axis normal shock, which creates simple manufacturing conditions.
  • Fig. 12 is a bottom mold 1 for casting a shaft bottom shown schematically.
  • This bottom mold 1 in turn has a mold bottom 2 surrounded by a mold shell 3, which is pot-shaped and carries on its bottom 22 a replaceable bottom 4, which has a continuous, adapted to the inclination of the Gerinnege houses inclination. Since thus the channel slope is already taken into account by the inclination of the bottom 4, the fittings 9 need not be circumcised to form the Gerineverile with respect to their height. Accordingly, shaped pieces can be prefabricated with a profile cross-section which corresponds exactly to the channel cross-section, the shaped pieces 9 only having to be cut to length accordingly.
  • the preparation of the recess body 11 for the inlet and outlet can be used with the thus prepared bottom 4 molded body inserted into the mold shell 2 and the bottom mold 1 with concrete 12 are poured.
  • a mold ring 13 is placed on the poured concrete 12. After an at least partial curing of the concrete, the finished manhole base can be removed from the mold.
  • the shaft bottom can also be made separately from the pot-shaped shaft with a flat bottom and subsequently inserted into the pot-like shaft.
  • a bottom mold is required, which has a corresponding bottom 4 within a mold shell 23.
  • cut pieces 9 are cut to the required for the channel negative mold in the manner already described in order to then pour the concrete 12 on the bottom mold 4 can. After at least partial curing of the shaped shaft bottom, this can be removed from the mold.
  • a seal 24 is provided which protrudes with its foot part 25 over the surface 26 of the recess body 11 and is anchored with this foot part 25 during the filling of the concrete in the bottom mold 1 in the concrete.
  • the seal 24 protrudes with a sealing lip 27 into the recess body 11, which sealing lip 27 protrudes after the forming of the shaft bottom and removing the recess body 11 in the opening formed by the recess body.
  • a seal 24 in the recess body 11 it is formed in two parts, for example composed of two pipe sections 11 'and 11 " Fig. 14 is shown, is suitably made of the same material as the shaped body 8. It can be screwed or glued to the end faces of the shaped body 8.
  • a strip 30 is provided as a separating aid, for example a tear-resistant adhesive tape which surrounds the shaped body 8 or the shaped piece 9 at least at one point of its longitudinal extent. This band 30 then allows easy gripping and pulling out of the shaped body 8 or shaped piece 9 from the channel.
  • this band 30 has a greater thickness, the band 30 is expediently inserted into a recess provided from the outset on the shaped body 8 and extending around the circumference of the shaped body 8, the depth of this recess being dimensioned such that when the band 30 is applied a completely smooth surface 31 of the molding is given.
  • the invention is of course not limited to the illustrated embodiments, which merely serve to illustrate the concept of the invention, which consists in the provision of prefabricated fittings 9 with adapted to the respective channel cross-section profile cross-section of various channels courses by a suitable assembly of the separated pieces 9 of the pieces to be able to realize without having to do without a mechanical production.
  • a lightweight foam in particular the well-known under the brand "Styrofoam” rigid foam plastic has been found that can be foamed in a simple manner in molds to the moldings 9, according to Foaming has a sufficiently high compressive strength and dimensional stability, can be easily cut by suitable cutting tools, such as hot wire, saws, knives, and ultimately also represents a very cheap product.
  • fittings made of polystyrene Styrofoam 8 can be made in a concrete plant by foaming in various forms, it is usually appropriate prefabricate fittings 9 in different dimensions, cross-sections and radii of curvature, which may provide price advantages and consistent properties or quality guaranteed. From different fittings 9 then suitable for the individual channels to be produced specimens are selected and cut to predetermined final dimensions. For this purpose, particularly heating wire cutting devices with adjustable linear and arcuate cut are suitable. The mold segments cut to final dimensions are then joined together to form the respective shaped body, e.g. glued together. The one-piece molded body 8 thus formed, after finishing, e.g. with respect to its height on the mold bottom 3, positioned in a predetermined position and e.g.
  • the cut fittings 9 can also be individually releasably fastened to the mold bottom 3 in virtually seamless joint system.
  • the material and manufacturing costs of the molded articles 8 made of styrofoam are so low that a single use is economically justifiable and the shaped bodies 8 are removed from the already hardened channels even if the shaped bodies 8 are damaged, e.g. can be knocked out.
  • the shaped body 8 can also be produced from hollow shaped pieces 9, for example made from plastic pipe blanks, which are connected to one another at their butt ends thermally or by gluing to one another and / or to the core bottom.
  • the molded body 8 should have smooth outer surfaces throughout, so that the molded channels are smooth-walled. When using rigid foam, the desired smooth surfaces already result from the foaming process.
  • Cut open-pored areas of such fittings 9 and also moldings 8 with a relatively rough surface can be covered, for example, by applying cut-to-size films or liquid or pasty substances before the concrete pouring takes place.
  • the covers made of films or other substances or formed by release agents, such as wax or oil, can prevent caking of the concrete and facilitate the removal of the molding 8.
  • the fittings 9, 10, 14, 15 are made of inexpensive materials and can be processed by simple technical means, such as knives, saws, cutting wires.
  • the assembly of the shaped pieces 9, 10, 14, 15 to the shaped body 8 and also the fixation of the individual Fün Community 9 or the shaped body 8 on the mold bottom 3 is also carried out in a technically simple manner, e.g. by gluing or by means of suitable fasteners, such as screws, dowels, etc. It is essential that all these measures be carried out by the manufacturer of the manhole bottoms on site, i. in the concrete plant, can be made.
EP04723451A 2003-04-15 2004-03-26 Verfahren und vorrichtung zum herstellen eines schachtbodens sowie eine gruppe von formstücken Expired - Lifetime EP1613453B1 (de)

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SI200431589T SI1613453T1 (sl) 2003-04-15 2004-03-26 Postopek in naprava za proizvodnjo dna jaĺ ka kot tudi skupine oblikovanih elementov
PL04723451T PL1613453T3 (pl) 2003-04-15 2004-03-26 Sposób i urządzenie do wytwarzania dna szybu oraz zestaw kształtek

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DE2003117321 DE10317321B4 (de) 2003-04-15 2003-04-15 Verfahren und Vorrichtung zur Herstellung von Schachtunterteilen aus Beton
AT6532003A AT500886B8 (de) 2003-04-29 2003-04-29 Vorrichtung zum herstellen eines schachtbodens aus beton
PCT/AT2004/000110 WO2004091877A1 (de) 2003-04-15 2004-03-26 Verfahren zum herstellen eines schachtbodens

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EP1613453B1 true EP1613453B1 (de) 2010-10-27

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EP (1) EP1613453B1 (pl)
AT (1) ATE485929T1 (pl)
CA (1) CA2522196C (pl)
DE (1) DE502004011821D1 (pl)
DK (1) DK1613453T3 (pl)
PL (1) PL1613453T3 (pl)
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Also Published As

Publication number Publication date
EP1613453A1 (de) 2006-01-11
DK1613453T3 (da) 2011-02-14
US20130059026A1 (en) 2013-03-07
US20060087056A1 (en) 2006-04-27
WO2004091877A1 (de) 2004-10-28
PL1613453T3 (pl) 2011-04-29
CA2522196C (en) 2013-06-11
ATE485929T1 (de) 2010-11-15
DE502004011821D1 (de) 2010-12-09
SI1613453T1 (sl) 2011-03-31
CA2522196A1 (en) 2004-10-28
US8262977B2 (en) 2012-09-11

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