EP1741841B1 - Manhole shaft - Google Patents

Manhole shaft Download PDF

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Publication number
EP1741841B1
EP1741841B1 EP06012707A EP06012707A EP1741841B1 EP 1741841 B1 EP1741841 B1 EP 1741841B1 EP 06012707 A EP06012707 A EP 06012707A EP 06012707 A EP06012707 A EP 06012707A EP 1741841 B1 EP1741841 B1 EP 1741841B1
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EP
European Patent Office
Prior art keywords
shaft
manhole
access part
cone
access
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.)
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Application number
EP06012707A
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German (de)
French (fr)
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EP1741841A1 (en
Inventor
Tobias Heger
Guido Kania
Roland Hendel
Mariusz Ciolak
Heiko Leihbecher
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rehau Automotive SE and Co KG
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Rehau AG and Co
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Publication date
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Publication of EP1741841A1 publication Critical patent/EP1741841A1/en
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Publication of EP1741841B1 publication Critical patent/EP1741841B1/en
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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00—Independent underground or underwater structures; Retaining walls
    • E02D29/12—Manhole shafts; Other inspection or access chambers; Accessories therefor
    • E02D29/124—Shaft entirely made of synthetic material
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00—Independent underground or underwater structures; Retaining walls
    • E02D29/12—Manhole shafts; Other inspection or access chambers; Accessories therefor
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00—Independent underground or underwater structures; Retaining walls
    • E02D29/12—Manhole shafts; Other inspection or access chambers; Accessories therefor
    • E02D29/121—Manhole shafts; Other inspection or access chambers; Accessories therefor characterised by the connection between shaft elements, e.g. of rings forming said shaft

Definitions

  • the invention relates to a shaft top according to the preamble of claim 1.
  • Such shaft tops are known from the prior art and practice. Due to the outwardly arched shape, such shaft tops usually have a good resistance to compressive forces exerted on the shaft top of the underground surrounding the shaft structure.
  • a disadvantage of the known shaft top parts is that the region of the transition between the shaft cone and the access part is more easily deformed than the shaft cone or the access part.
  • Another disadvantage of the known shaft tops is that their production costs are very high, for example in the rotation process, while in the case of shaft tops, which are produced by injection molding, vertical reinforcements for the removal of vertical loads missing.
  • a generic shaft top is from the DE 697 11 377 T2 as well as the DE 100 05 688 C1 known.
  • the latter relates to a shaft top according to the preamble of claim 1.
  • the disclosure relates to a shaft top having an access part and a shaft cone which is connected to the access part and can be placed with a peripheral edge opposite the access part on a shaft ring, wherein the shaft cone a substantially outwardly arched basic shape has.
  • This shaft top is intended to overcome the disadvantages of the known prior art, especially in compressive stresses do not bend inwards.
  • a disadvantage of this shaft top is that when inspections by persons, for example in the context of inspections of existing pits no way it is safe to enter the shaft or to reach the shaft bottom. In this shaft top there are no possibilities to mount a climbing aid or a ladder safe to walk so that the inside of the shaft can be inspected. Another disadvantage is seen that the person gets in from above with his back to the center of the shaft and the light conditions in the shaft are very unfavorable, so that any existing climbing aids hardly stand out from the ground of the shaft and so there is a considerable security risk during inspections. Another disadvantage is seen in the fact that a possible inspection or inspection by means of climbing aids or ladders is only possible if they can be firmly anchored in the wall of the shaft top.
  • the shaft top according to the invention is characterized in that at least one retaining element is arranged in the access part. It has been found that by the particular one-piece attachment of retaining elements in the access section a simple way is created to secure additional climbing aids or other required for a visit tools such as ladders safely and easily. Furthermore, it has been found to be advantageous that the retaining elements on the access part when opening a well filled and filled in the ground very easily by the inspection staff after opening the shaft top final lid can be reached, since these are arranged only at a small distance from the ground level.
  • the holding element is approximately U-shaped and has an opening into which, for example, climbing aids can be introduced, but which can also be used, for example, to move objects determined by the staff accident-free down into the shaft.
  • the holding elements of the upper part of the shaft according to the invention are arranged opposite each other in a further advantageous embodiment, for example, to introduce a tread, so that the inspection personnel can reach this next, positioned at a small distance from the ground level, tread accident-free to the next mounted in the shaft structure treads.
  • this tread is easily removable at any time, so that even larger, for example, necessary for a cleaning of the shaft tools can be lowered through the opening of the access section into the shaft.
  • shaft upper part according to the invention Another advantage of the shaft upper part according to the invention is seen in the fact that through the use of a thermoplastically processable material, in particular polypropylene, for the shaft top according to the invention a cost-effective production can be realized, at the same time high ring stiffness or impact resistance.
  • a shaft top according to the invention is easy to inspect by a light coloration such as orange brown and has a very high chemical resistance by the use of a polypropylene material.
  • Fig. 1 shows a shaft top 10 according to the invention for a shaft, not shown, with an access part 11 and a shaft cone 12 which is connected to the access part 11 and with a connecting element 13 on the access part 11 opposite side of the shaft cone 12 to another shaft element, such as a central part or lower part is placed.
  • the shaft cone 12 of the shaft top 10 has a substantially outwardly arched basic shape.
  • the shaft top 10 according to the invention is designed such that the shaft cone 12 has at least three sections A, B, C, in which substantially mutually parallel stiffening elements 20 are arranged.
  • the sections A, B, C of the shaft upper part 10 according to the invention can be separated from one another by at least one reinforcing element 30, which further improves the rigidity of the shaft upper part 10 according to the invention.
  • the reinforcing element 30 advantageously connects the connecting element 13 to the access part 11.
  • the shaft top 10 according to the invention has a reinforcing element 40, which is spaced from the connecting element 13 and which is arranged circumferentially on the shaft cone 12 in this embodiment.
  • three reinforcing elements 40 are arranged to achieve a required ring stiffness.
  • the reinforcing elements 40 are integrally connected to the shaft cone 12.
  • the stiffening elements 20 of the shaft upper part 10 according to the invention are formed in this embodiment as a bead or bead, which interrupt the inner surface of the shaft cone 12, so that the stiffening elements 20 are arranged approximately wave-shaped.
  • the shaft top 10 according to the invention has on the reinforcing elements 30 on transport elements 31, which ensure both in the manufacture of the shaft top 10 as well as during transport or installation safety and reduce the risk of accidents.
  • 30 securing elements 32 are arranged on the reinforcing element, which are particularly suitable to a simple and secure manner a restrained connection with an underlying Shaft center part or manhole base to produce without a costly welding of the manhole components is necessary.
  • the securing elements 32 during transport of the shaft top 10 of the invention provide additional security.
  • the shaft top 10 has in its access part 11 at least one holding element 15, which is connected in this embodiment in one piece with this.
  • this holding element 15 in the access part 11 a trouble-free and accident-free access to the shaft structure is possible, especially at high shaft tops or access openings.
  • an additional, corrosion-resistant climbing or holding element can be introduced, in particular if two oppositely positioned holding elements 15 are arranged in the access part 11.

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  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
  • Tents Or Canopies (AREA)
  • Mechanically-Actuated Valves (AREA)
  • Sewage (AREA)

Abstract

In the manhole access section (11), there is at least one attachment point (15). This is connected integrally to the access section and includes an opening located in a U-shaped region. The attachment point is located in the transition region to the shaft dome (12). Two such attachment points are positioned opposite each other, on the inner wall of the access section.

Description

Die Erfindung betrifft ein Schachtoberteil gemäß dem Obergriff des Anspruches 1.The invention relates to a shaft top according to the preamble of claim 1.

Derartige Schachtoberteile sind aus dem Stand der Technik und der Praxis bekannt. Aufgrund der nach außen gewölbten Form haben derartige Schachtoberteile üblicherweise eine gute Widerstandsfähigkeit gegen Druckkräfte, die auf das Schachtoberteil aus dem das Schachtbauwerk umgebenden Untergrund ausgeübt werden.
Nachteilig bei den bekannten Schachtoberteilen ist jedoch, dass sich der Bereich des Übergangs zwischen Schachtkonus und Zugangsteil leichter verformt als der Schachtkonus oder das Zugangsteil.
Ein weiterer Nachteil der bekannten Schachtoberteile besteht darin, dass deren Herstellungskosten beispielsweise im Rotationsverfahren sehr hoch sind, während bei Schachtoberteilen, die im Spritzgießverfahren hergestellt sind, vertikale Verstärkungen zur Abtragung von Vertikallasten fehlen.Such shaft tops are known from the prior art and practice. Due to the outwardly arched shape, such shaft tops usually have a good resistance to compressive forces exerted on the shaft top of the underground surrounding the shaft structure.
A disadvantage of the known shaft top parts, however, is that the region of the transition between the shaft cone and the access part is more easily deformed than the shaft cone or the access part.
Another disadvantage of the known shaft tops is that their production costs are very high, for example in the rotation process, while in the case of shaft tops, which are produced by injection molding, vertical reinforcements for the removal of vertical loads missing.

Ein gattungsgemäßes Schachtoberteil ist aus der DE 697 11 377 T2 wie auch der DE 100 05 688 C1 bekannt. Letztere zeigt ein Schachtoberteil entsprechend dem Oberbegriff des Anspruch 1. Die Offenbarung bezieht sich auf ein Schachtoberteil mit einem Zugangsteil und einem Schachtkonus, der mit dem Zugangsteil verbunden ist und mit einer dem Zugangsteil gegenüberliegenden Umfangskante auf einen Schachtring aufsetzbar ist, wobei der Schachtkonus eine im Wesentlichen nach außen gewölbte Grundform hat. Dieses Schachtoberteil soll die Nachteile des bekannten Standes der Technik überwinden, insbesondere bei Druckbeanspruchungen sich nicht nach innen verbiegen. Dies soll dadurch realisiert sein, dass im Bereich des Übergangs vom Zugangsteil zum Schachtkonus eine im Wesentlichen parallel zu der Ebene, in der die Umfangskante gelegen ist, ausgerichtete Verstärkungsrippe auf dem Außenmantel des Schachtkonus vorgesehen ist, die sich über dem gesamten Umfang des Schachtkonus erstreckt.A generic shaft top is from the DE 697 11 377 T2 as well as the DE 100 05 688 C1 known. The latter relates to a shaft top according to the preamble of claim 1. The disclosure relates to a shaft top having an access part and a shaft cone which is connected to the access part and can be placed with a peripheral edge opposite the access part on a shaft ring, wherein the shaft cone a substantially outwardly arched basic shape has. This shaft top is intended to overcome the disadvantages of the known prior art, especially in compressive stresses do not bend inwards. This is to be realized in that in the region of the transition from the access part to the shaft cone a substantially parallel to the plane in which the peripheral edge is located aligned reinforcing rib is provided on the outer surface of the shaft cone, which extends over the entire circumference of the shaft cone.

Nachteilig bei diesem Schachtoberteil ist, dass bei Begehungen durch Personen beispielsweise im Rahmen von Inspektionen an bestehenden Schachtanlagen keine Möglichkeit besteht, sicher in den Schacht hinein bzw. bis an den Schachtgrund zu gelangen. In diesem Schachtoberteil befinden sich keine Möglichkeiten eine Steighilfe oder eine Leiter begehungssicher so anzubringen, dass das Schachtinnere inspiziert werden kann. Weiterhin nachteilig wird gesehen, dass die Person von oben mit dem Rücken zur Schachtmitte einsteigt und die Lichtverhältnisse im Schacht sehr ungünstig sind, so dass sich evtl. vorhandene Steighilfen kaum vom Untergrund des Schachtes abheben und so ein beträchtliches Sicherheitsrisiko bei Begehungen besteht.
Ein weiterer Nachteil wird darin gesehen, dass eine mögliche Begehung oder Inspektion mit Hilfe von Steighilfen oder auch Leitern nur dann möglich ist, wenn diese in der Wand des Schachtoberteils fest verankert werden können. Dazu ist es jedoch erforderlich, die Außenwand des Schachtes anzubohren bzw. auch durchzubohren um geeignete Befestigungselemente anzubringen, was einerseits sehr zeit- und kostenaufwendig ist und andererseits den Schacht in seiner Stabilität und seiner Dichtheit negativ beeinflusst. Weiterhin nachteilig wird gesehen, dass durch die gewölbte Form des Schachtkonus das Erreichen möglicher Steighilfen durch einsteigendes Personal sehr schwierig ist, da dieses durch die gewölbte Form verdeckt ist.A disadvantage of this shaft top is that when inspections by persons, for example in the context of inspections of existing pits no way it is safe to enter the shaft or to reach the shaft bottom. In this shaft top there are no possibilities to mount a climbing aid or a ladder safe to walk so that the inside of the shaft can be inspected. Another disadvantage is seen that the person gets in from above with his back to the center of the shaft and the light conditions in the shaft are very unfavorable, so that any existing climbing aids hardly stand out from the ground of the shaft and so there is a considerable security risk during inspections.
Another disadvantage is seen in the fact that a possible inspection or inspection by means of climbing aids or ladders is only possible if they can be firmly anchored in the wall of the shaft top. For this purpose, however, it is necessary to drill or drill through the outer wall of the shaft to install suitable fasteners, which on the one hand is very time consuming and costly and on the other hand adversely affects the shaft in its stability and its tightness. Another disadvantage is seen that the achievement of possible climbing aids by boarding personnel is very difficult because of the curved shape of the manhole cone, as this is hidden by the curved shape.

Es ist daher Aufgabe der Erfindung, die Nachteile des bekannten Standes der Technik zu überwinden und ein Schachtoberteil aufzuzeigen, welches wirtschaftlich und kostengünstig herstellbar ist, welches einfach und sicher handhabbar ist und welches ein deutlich verringertes Sicherheitsrisiko für Begehungen aufweist.It is therefore an object of the invention to overcome the disadvantages of the known prior art and to show a shaft top, which is economical and inexpensive to produce, which is easy and safe to handle and which has a significantly reduced security risk for on-the-go.

Erfindungsgemäß wird dies durch die kennzeichneten Merkmale des Anspruches 1 gelöst. Weitere vorteilhafte Ausgestaltungen sind in den Unteransprüchen beschrieben.This is achieved by the characterizing features of claim 1. Further advantageous embodiments are described in the subclaims.

Das erfindungsgemäße Schachtoberteil zeichnet sich dadurch aus, dass im Zugangsteil wenigstens ein Halteelement angeordnet ist.
Es wurde festgestellt, dass durch das insbesondere einstückige Anbringen von Halteelementen im Zugangsteil eine einfache Möglichkeit geschaffen ist, zusätzliche Steighilfen oder andere für eine Begehung erforderliche Werkzeuge wie beispielsweise Leitern sicher und einfach zu befestigen.
Weiterhin vorteilhaft konnte festgestellt werden, dass die Halteelemente am Zugangsteil beim Öffnen eines im Erdreich eingesetzten und verfüllten Schachtes durch das Begehungspersonal nach dem Öffnen des Schachtoberteil abschließenden Deckels sehr leicht erreichbar sind, da diese nur in einem geringen Abstand von der Geländeoberkante angeordnet sind.
Das Halteelement ist etwa U-förmig ausgebildet und weist eine Öffnung auf, in die beispielsweise Steighilfen einbringbar sind, das aber auch beispielsweise dazu genutzt werden kann, um vom Personal bestimmte Gegenstände unfallfrei in den Schacht hinab zu bewegen.
Ein weiterer Vorteil wird darin gesehen, dass durch die einstückige Verbindung des Halteelements mit dem Zugangsteil eine sichere und leichte Befestigung von beispielsweise Steighilfen möglich ist.
Bei dem erfindungsgemäßen Schachtoberteil ist es aufgrund der Anordnung der Halteelemente möglich, die von nationalen Gesetzen oder Normen geforderten Abstände zwischen der Geländeoberkante und der ersten Position an der ein Befestigungs- bzw. Steigelement eingebracht werden muss, zu erfüllen. Das erfindungsgemäße Schachtoberteil bietet somit die Möglichkeit durch eine Anordnung von einem Halteelement im Zugangsteil latent im Stand der Technik vorhandene Sicherheitsrisiken zu minimieren bzw. sogar auszuschließen.
Die Halteelemente des erfindungsgemäßen Schachtoberteils sind in einer weiteren vorteilhaften Ausführungsform einander gegenüberliegend angeordnet, um beispielsweise eine Trittstufe einzubringen, so dass das Inspektionspersonal über diese erste, in geringem Abstand zur Geländeoberkante positionierte, Trittstufe unfallfrei zu den nächsten im Schachtbauwerk montierten Trittstufen gelangen kann. Vorteilhafterweise ist diese Trittstufe jederzeit wieder problemlos entfernbar, so dass auch größere beispielsweise für eine Reinigung des Schachtes notwendige Werkzeuge durch die Öffnung des Zugangsteils in den Schacht hinabgelassen werden können.The shaft top according to the invention is characterized in that at least one retaining element is arranged in the access part.
It has been found that by the particular one-piece attachment of retaining elements in the access section a simple way is created to secure additional climbing aids or other required for a visit tools such as ladders safely and easily.
Furthermore, it has been found to be advantageous that the retaining elements on the access part when opening a well filled and filled in the ground very easily by the inspection staff after opening the shaft top final lid can be reached, since these are arranged only at a small distance from the ground level.
The holding element is approximately U-shaped and has an opening into which, for example, climbing aids can be introduced, but which can also be used, for example, to move objects determined by the staff accident-free down into the shaft.
Another advantage is seen in the fact that a secure and easy attachment of example climbing aids is possible by the integral connection of the retaining element with the access part.
In the shaft top according to the invention, it is possible due to the arrangement of the holding elements, the required by national laws or standards distances between the ground level and the first position at which a fastening or climbing element must be introduced to meet. The shaft top according to the invention thus offers the possibility of minimizing or even precluding existing safety risks by arranging security elements present in the access part latently in the access part.
The holding elements of the upper part of the shaft according to the invention are arranged opposite each other in a further advantageous embodiment, for example, to introduce a tread, so that the inspection personnel can reach this next, positioned at a small distance from the ground level, tread accident-free to the next mounted in the shaft structure treads. Advantageously, this tread is easily removable at any time, so that even larger, for example, necessary for a cleaning of the shaft tools can be lowered through the opening of the access section into the shaft.

Ein weiterer Vorteil des erfindungsgemäßen Schachtoberteils wird darin gesehen, dass durch die Verwendung eines thermoplastisch verarbeitbaren Werkstoffes, insbesondere Polypropylen, für das erfindungsgemäße Schachtoberteil eine kostengünstige Herstellung realisierbar ist, bei gleichzeitig hoher Ringsteifigkeit bzw. Schlagzähigkeit. Vorteilhafterweise ist ein derartiges erfindungsgemäßes Schachtoberteil inspektionsfreundlich durch eine helle Farbgebung wie beispielsweise orangebraun und weist eine sehr hohe Chemikalienbeständigkeit durch die Verwendung eines Polypropylenwerkstoffes auf.Another advantage of the shaft upper part according to the invention is seen in the fact that through the use of a thermoplastically processable material, in particular polypropylene, for the shaft top according to the invention a cost-effective production can be realized, at the same time high ring stiffness or impact resistance. Advantageously, such a shaft top according to the invention is easy to inspect by a light coloration such as orange brown and has a very high chemical resistance by the use of a polypropylene material.

Die Erfindung soll nun an einem diese nicht einschränkenden Ausführungsbeispiel näher beschrieben werden.The invention will now be described in more detail on a non-limiting this embodiment.

Es zeigt:

Fig. 1 -
erfindungsgemäßes Schachtoberteil
It shows:
Fig. 1 -
Shaft top according to the invention

Fig. 1 zeigt ein erfindungsgemäßes Schachtoberteil 10 für einen nicht dargestellten Schacht mit einem Zugangsteil 11 und einem Schachtkonus 12, welcher mit dem Zugangsteil 11 verbunden ist und mit einem Verbindungselement 13 auf der dem Zugangsteil 11 gegenüberliegenden Seite des Schachtkonusses 12 auf ein weiteres Schachtelement, wie beispielsweise ein Mittelteil oder Unterteil aufsetzbar ist. Der Schachtkonus 12 des Schachtoberteils 10 weist eine im Wesentlichen nach außen gewölbte Grundform auf. Das erfindungsgemäße Schachtoberteil 10 ist so ausgebildet, dass der Schachtkonus 12 wenigstens drei Abschnitte A, B, C aufweist, in denen im Wesentlichen parallel zueinander angeordnete Versteifungselemente 20 angeordnet sind. Die Abschnitte A, B, C des erfindungsgemäßen Schachtoberteils 10 können durch wenigstens ein Verstärkungselement 30 voneinander getrennt sein, was die Steifigkeit des erfindungsgemäßen Schachtoberteils 10 noch verbessert. Das Verstärkungselement 30 verbindet vorteilhafterweise das Verbindungselement 13 mit dem Zugangsteil 11. Durch das Verstärkungselement 30 werden zumindest teilweise aufeinander zulaufende Versteifungselemente 20 aus den Abschnitten A, B, C miteinander verbunden. Das erfindungsgemäße Schachtoberteil 10 weist ein Verstärkungselement 40 auf, welches vom Verbindungselement 13 beabstandet ist und welches in diesem Ausführungsbeispiel umlaufend am Schachtkonus 12 angeordnet ist. In diesem Ausführungsbeispiel sind zur Erzielung einer erforderlichen Ringsteifigkeit drei Verstärkungselemente 40 angeordnet. Die Verstärkungselemente 40 sind einstückig mit dem Schachtkonus 12 verbunden. Durch das Verstärkungselement 40 werden vorteilhafterweise benachbarte Versteifungselemente 20 miteinander verbunden, so dass hierdurch die Ringsteifigkeit und Längssteifigkeit für die Verkehrslastabtragung des erfindungsgemäßen Schachtoberteils 10 optimiert wird. Die Versteifungselemente 20 des erfindungsgemäßen Schachtoberteils 10 sind in diesem Ausführungsbeispiel als Wulst oder Sicke ausgebildet, die die innere Oberfläche des Schachtkonusses 12 unterbrechen, so dass die Versteifungselemente 20 etwa wellenförmig angeordnet sind. Das erfindungsgemäße Schachtoberteil 10 weist an den Verstärkungselementen 30 Transportelemente 31 auf, die sowohl bei der Herstellung des Schachtoberteils 10 als auch beim Transport bzw. Montage die Sicherheit gewährleisten und die Unfallgefahr reduzieren. Weiterhin sind am Verstärkungselement 30 Sicherungselemente 32 angeordnet, die insbesondere dazu geeignet sind, auf einfache und sichere Weise eine längskraftschlüssige Verbindung mit einem darunter befindlichen Schachtmittelteil oder Schachtunterteil herzustellen, ohne dass eine aufwendige Verschweißung der Schachtbauteile notwendig wird. Außerdem sorgen die Sicherungselemente 32 beim Transport des erfindungsgemäßen Schachtoberteils 10 für zusätzliche Sicherheit. Im Bereich des Verbindungselementes 13 des Schachtoberteils 10 ist mindestens ein Markierungselement 14 angeordnet, welches insbesondere bei der Montage des Schachtoberteils 10 auf einem Schachtbauwerk für eine schnelle Ausrichtung und sichere Montage sorgt.
Das erfindungsgemäße Schachtoberteil 10 weist in seinem Zugangsteil 11 wenigstens ein Halteelement 15 auf, welches in diesem Ausführungsbeispiel einstückig mit diesem verbunden ist. Durch dieses Halteelement 15 im Zugangsteil 11 ist insbesondere bei hohen Schachtoberteilen bzw. Zugangsöffnungen ein problemloser und unfallfreier Zutritt in das Schachtbauwerk möglich. Hier kann ein zusätzliches, korrosionsbeständiges Steige- oder Halteelement eingebracht werden, insbesondere wenn zwei einander gegenüberliegend positionierte Halteelemente 15 im Zugangsteil 11 angeordnet sind. Dieses hat den Vorteil, das mit ihm der ursprüngliche Abstand von der Geländeoberkante bis zur ersten Steigstufe reduziert ist und somit ein wesentlich sicheres Einsteigen des Schachtbauwerks über das Schachtoberteil 10 gewährleistet ist. Ein zusätzlich einbringbares Steigelement ist aufgrund der optimierten Geometrie des Halteelements 15 einfach, sicher und fest mit dem Schachtoberteil 10 verbindbar. Durch das insbesondere einstückig im Zugangsteil 11 des Schachtoberteils 10 befestigte Halteelement 15 ist die direkte und somit stabile bzw. verschiebesichere Befestigung einer zusätzlichen Steighilfe oder Steigstufe in jedem Fall gewährleistet und somit auch das Sicherheitsrisiko für das einsteigende Personal drastisch reduziert. In einer vorteilhaften Ausführungsform können in die Halteelemente 15 beispielsweise Einsteighilfen, Verschlüsse oder Reinigungs- und Inspektionsgeräte eingebracht werden, so dass eine Beschädigung des Zugangsteiles 11 bzw. des Schachtkonus 12 des Schachtoberteils 10 aber auch eine kostenaufwändige Montage derartiger Hilfsmittel vermieden werden. Fig. 1 shows a shaft top 10 according to the invention for a shaft, not shown, with an access part 11 and a shaft cone 12 which is connected to the access part 11 and with a connecting element 13 on the access part 11 opposite side of the shaft cone 12 to another shaft element, such as a central part or lower part is placed. The shaft cone 12 of the shaft top 10 has a substantially outwardly arched basic shape. The shaft top 10 according to the invention is designed such that the shaft cone 12 has at least three sections A, B, C, in which substantially mutually parallel stiffening elements 20 are arranged. The sections A, B, C of the shaft upper part 10 according to the invention can be separated from one another by at least one reinforcing element 30, which further improves the rigidity of the shaft upper part 10 according to the invention. The reinforcing element 30 advantageously connects the connecting element 13 to the access part 11. By the reinforcing element 30, at least partially converging reinforcing elements 20 from the sections A, B, C are connected to one another. The shaft top 10 according to the invention has a reinforcing element 40, which is spaced from the connecting element 13 and which is arranged circumferentially on the shaft cone 12 in this embodiment. In this embodiment, three reinforcing elements 40 are arranged to achieve a required ring stiffness. The reinforcing elements 40 are integrally connected to the shaft cone 12. By the reinforcing element 40 adjacent reinforcing elements 20 are advantageously connected to each other, so that thereby the ring stiffness and longitudinal stiffness for traffic load transfer of the shaft top 10 according to the invention is optimized. The stiffening elements 20 of the shaft upper part 10 according to the invention are formed in this embodiment as a bead or bead, which interrupt the inner surface of the shaft cone 12, so that the stiffening elements 20 are arranged approximately wave-shaped. The shaft top 10 according to the invention has on the reinforcing elements 30 on transport elements 31, which ensure both in the manufacture of the shaft top 10 as well as during transport or installation safety and reduce the risk of accidents. Furthermore, 30 securing elements 32 are arranged on the reinforcing element, which are particularly suitable to a simple and secure manner a restrained connection with an underlying Shaft center part or manhole base to produce without a costly welding of the manhole components is necessary. In addition, the securing elements 32 during transport of the shaft top 10 of the invention provide additional security. In the region of the connecting element 13 of the upper shaft part 10 at least one marking element 14 is arranged, which ensures in particular during assembly of the upper shaft part 10 on a shaft structure for a quick alignment and secure installation.
The shaft top 10 according to the invention has in its access part 11 at least one holding element 15, which is connected in this embodiment in one piece with this. By this holding element 15 in the access part 11, a trouble-free and accident-free access to the shaft structure is possible, especially at high shaft tops or access openings. Here, an additional, corrosion-resistant climbing or holding element can be introduced, in particular if two oppositely positioned holding elements 15 are arranged in the access part 11. This has the advantage that with it the original distance from the ground level to the first riser is reduced and thus a substantially safe boarding of the shaft structure is ensured via the shaft top 10. An additionally insertable riser element is due to the optimized geometry of the support member 15 simple, secure and fixed to the shaft top 10 connectable. By the particular integrally in the access part 11 of the shaft top 10 fixed holding member 15, the direct and thus stable or secure against displacement attachment of an additional climbing aid or step is guaranteed in each case and thus drastically reduces the security risk for the entering personnel. In an advantageous embodiment, for example, access aids, closures or cleaning and inspection devices can be introduced into the holding elements 15, so that damage to the access part 11 or the shaft cone 12 of the shaft top 10 but also a costly installation of such aids can be avoided.

Claims (5)

  1. Manhole upper part, produced from a thermoplastically processable material, in particular polypropylene, for a manhole having an access part and a manhole cone which is connected to the access part and which can be placed on a further manhole element by way of a connecting element on that side of the manhole cone opposite the access part, wherein the manhole cone has a substantially outwardly curved basic shape and wherein at least one retaining element (15) is arranged in the access part (11), characterized in that the retaining element (15) has an approximately U-shaped design and is integrally connected to the access part (11).
  2. Manhole upper part according to Claim 1, characterized in that the retaining element (15) has an opening (16).
  3. Manhole upper part according to Claim 2, characterized in that the opening (16) in the retaining element (15) is arranged in the U-shaped region.
  4. Manhole upper part according to Claims 1 to 3, characterized in that the retaining element (15) is arranged in the transition region from the access part (11) to the manhole cone (12).
  5. Manhole upper part according to Claims 1 to 4, characterized in that two retaining elements (15) positioned opposite one another are arranged on the inner wall of the access part (11).
EP06012707A 2005-06-29 2006-06-21 Manhole shaft Active EP1741841B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202005010489U DE202005010489U1 (en) 2005-06-29 2005-06-29 Schacht shell

Publications (2)

Publication Number Publication Date
EP1741841A1 EP1741841A1 (en) 2007-01-10
EP1741841B1 true EP1741841B1 (en) 2012-03-14

Family

ID=36934231

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06012707A Active EP1741841B1 (en) 2005-06-29 2006-06-21 Manhole shaft

Country Status (3)

Country Link
EP (1) EP1741841B1 (en)
AT (1) ATE549463T1 (en)
DE (1) DE202005010489U1 (en)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3121249C2 (en) * 1981-05-29 1983-03-17 Gerhard 8867 Oettingen Enßle Anchoring for crampons in parts made of concrete or the like.
DE9407303U1 (en) * 1994-05-02 1994-07-07 Kessel, Bernhard, 85101 Lenting Shaft, shaft element and tread element for the shaft or the shaft element
DE29506860U1 (en) * 1995-04-22 1995-08-24 Hubeny, Rudolf, 48268 Greven Water transfer shaft with segments containing plastic
NL1003376C2 (en) * 1996-06-19 1997-12-23 Wavin Bv Attachment for a well.
DE19908345C1 (en) * 1999-02-26 2000-10-19 Ksm Gmbh Holder for the climbing aid rod into a drainage shaft has two U-shaped sections forming a mounting plate and a holder in a rigid structure without free play and with no welded seams
DE10005688C1 (en) * 2000-02-09 2001-06-28 Romold Gmbh Plastics manhole element for water supply or drainage system has metal ladder treads supported by projections extending inwards from manhole element wall
DE20019374U1 (en) * 2000-11-15 2001-01-18 BG Edelstahl und Kunststofftechnik für Krankenhaus und Industrie GmbH, 45657 Recklinghausen Holding device as an entry aid for shaft structures
DE202005010486U1 (en) * 2005-06-29 2006-08-24 Rehau Ag + Co. Schacht shell

Also Published As

Publication number Publication date
DE202005010489U1 (en) 2006-08-17
EP1741841A1 (en) 2007-01-10
ATE549463T1 (en) 2012-03-15

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