EP0578044B1 - Component for control- or maintenance-manholes - Google Patents
Component for control- or maintenance-manholes Download PDFInfo
- Publication number
- EP0578044B1 EP0578044B1 EP93109918A EP93109918A EP0578044B1 EP 0578044 B1 EP0578044 B1 EP 0578044B1 EP 93109918 A EP93109918 A EP 93109918A EP 93109918 A EP93109918 A EP 93109918A EP 0578044 B1 EP0578044 B1 EP 0578044B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- metal reinforcement
- structural part
- elastomer
- rings
- part according
- 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
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Classifications
-
- 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
Definitions
- the invention relates to a component for maintenance and control shafts according to the preamble of claim 1.
- a shaft is understood to mean a structure that enables access to the sewerage system and supply lines.
- manholes which are closed at the top by an inlet grate or a manhole cover, consist of a manhole bottom, several manhole rings, a possibly conical manhole neck and a support ring on which the frame of the manhole cover or the inlet grate rests.
- spacer rings which consist entirely of an elastomer and thus fulfill the same function as the coatings or permanently elastic manhole components.
- the spacer rings are designed in such a way that their upper and lower horizontal surfaces are in full contact with the two adjacent shaft components.
- these spacer rings are not inherently rigid and can bend and warp during transport and storage, so that they do not come to rest correctly on the shaft component during installation.
- the problem arising from these disadvantages, to develop an intermediate layer ring which does not bend and warp is achieved according to the invention in that the intermediate layer ring is provided with at least one metal reinforcement which is embedded against the contact surfaces formed by the upper and lower horizontal surfaces.
- the Shore hardness of the elastomer is at least 75, which means that the compression path and thus the risk of the shaft components lying above the spacer ring coming loose from the road bed is extremely low.
- the reinforcement of the intermediate ring made of elastomer can take the form of two all-round steel wires.
- embedded wire mesh or perforated metal strips are also conceivable. If, in a preferred embodiment of the spacer ring according to the invention, sheet metal profiles in H, U or L shape are used on the inside and outside, the legs or edges of these sheet metal profiles are set back against the contact surfaces.
- FIG. 1 contains, as metal reinforcement in profile, two completely circumferential steel wires 2, 3 in the vicinity of the inner and outer interface.
- the metal reinforcement in the intermediate spacer ring 1 'according to FIG. 2 consists of sheet steel profiles 4, 5 embedded in the inside and outside with a T-profile, the transverse web being a has a lower height than the thickness of the spacer ring.
- the metal reinforcement 6, 7 has the sheet steel profile of a lying H or U. The elastomer can be pulled slightly over the lying legs of the profile.
- the intermediate spacer ring has only the radial width of the groove and the adjacent contact surface and is inserted there immovably.
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- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Environmental & Geological Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Clamps And Clips (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
- Prostheses (AREA)
- Liquid Developers In Electrophotography (AREA)
- Spinning Or Twisting Of Yarns (AREA)
- Sewage (AREA)
Abstract
Description
Die Erfindung betrifft ein Bauteil für Wartungs- und Kontrollschächte nach dem Oberbegriff von Anspruch 1. Unter einem solchen Schacht wird ein Bauwerk verstanden, das den Zugang zur Kanalisation und zu Versorgungsleitungen ermöglicht.The invention relates to a component for maintenance and control shafts according to the preamble of
Diese durch einen Einlaufrost oder einen Schachtdeckel oben verschlossenen Schächte bestehen aus einem Schachtboden, mehreren Schachtringen, einem ggf. konisch zusammenlaufenden Schachthals und einem Auflagering, auf dem der Rahmen der Schachtabdeckung oder des Einlaufrostes ruht.These manholes, which are closed at the top by an inlet grate or a manhole cover, consist of a manhole bottom, several manhole rings, a possibly conical manhole neck and a support ring on which the frame of the manhole cover or the inlet grate rests.
Die Verkehrsbelastungen eines in eine vom Schwerlastverkehr befahrene Straße eingebauten Schachtes sind enorm. Kleinste Niveauunterschiede zwischen der Straßenfläche und der Oberseite des Schachtdeckels führen zu Belastungsspitzen, die sich in den Schacht nach unten fortpflanzen. Wenn die Schachtbauteile nicht durch in die Fugen vollflächig eingebrachten Mörtel verbunden sind, werden die Schachtbauteile an Stellen der höchsten Flächenpressung zerstört. Auch gemauerte Schachthälse sind dieser hohen dynamischen Beanspruchung auf Dauer nicht gewachsen.The traffic loads on a shaft built into a road used by heavy goods traffic are enormous. The smallest differences in level between the road surface and the top of the manhole cover lead to load peaks that propagate down into the manhole. If the manhole components are not connected by mortar placed over the entire surface of the joints, the manhole components will be destroyed at places of the highest surface pressure. Even brick shaft necks are not able to cope with this high dynamic load in the long run.
Es ist bereits vorgeschlagen worden (DE-OS 38 39 320), zum Vernichten der aus den dynamischen Verkehrsbelastungen stammenden Druckkräfte mindestens einem der Schachtbauteile einen begrenzt dauerelastischen Aufbau oder an den Berührungsflächen eine dauerelastische Beschichtung zu geben. Damit sollen Druckkräfte möglichst weit oben im Schacht vernichtet und somit von den übrigen Schachtbauteilen ferngehalten werden.It has already been proposed (DE-OS 38 39 320) to give at least one of the shaft components a permanently elastic structure or a permanently elastic coating on the contact surfaces to destroy the compressive forces originating from the dynamic traffic loads. This is intended to destroy pressure forces as high as possible in the shaft and thus keep them away from the other shaft components.
Ein solches obenliegendes Schachtbauteil begrenzt dauerelastisch auszubilden stößt aber auf erhebliche Schwierigkeiten. Eine dauerelastische Beschichtung der Berührungsflächen hingegen ist beim Transport und beim Einbau beschädigungsanfällig.However, such an overhead shaft component with limited elasticity is subject to considerable difficulties. A permanently elastic coating of the contact surfaces, however, is susceptible to damage during transport and installation.
Eine andere Möglichkeit zum Fernhalten und Vernichten von verkehrsbedingten Druckkräften sind Zwischenlegeringe, die insgesamt aus einem Elastomer bestehen und dadurch dieselbe Funktion erfüllen wie die Beschichtungen bzw. dauerelastisch aufgebauten Schachtbauteile. Die Zwischenlegeringe sind so ausgebildet, daß sie mit ihrer oberen und unteren Horizontalfläche vollflächig an den beiden angrenzenden Schachtbauteilen anliegen. Diese Zwischenlegeringe sind jedoch nicht eigensteif und können sich beim Transport und bei der Lagerung verbiegen und verziehen, so daß sie beim Einbau nicht richtig auf dem Schachtbauteil zu liegen kommen. Die sich aus diesen Nachteilen ergebende Aufgabe, einen Zwischenlegering zu entwickeln, der sich nicht verbiegt und verzieht, wird erfindungsgemäß dadurch gelöst, daß der Zwischenlegering mindestens eine Metallbewehrung erhält, die gegen die von den oberen und unteren Horizontalflächen gebildeten Berührungsflächen zurückstehend eingebettet ist. Die Shore-Härte des Elastomers beträgt dabei mindestens 75, wodurch der Kompressionsweg und damit die Gefahr des Losschlagens der über dem Zwischenlegering liegenden Schachtbauteile aus der Straßenbettung äußerst gering wird.Another possibility for keeping away and destroying traffic-related pressure forces are spacer rings, which consist entirely of an elastomer and thus fulfill the same function as the coatings or permanently elastic manhole components. The spacer rings are designed in such a way that their upper and lower horizontal surfaces are in full contact with the two adjacent shaft components. However, these spacer rings are not inherently rigid and can bend and warp during transport and storage, so that they do not come to rest correctly on the shaft component during installation. The problem arising from these disadvantages, to develop an intermediate layer ring which does not bend and warp is achieved according to the invention in that the intermediate layer ring is provided with at least one metal reinforcement which is embedded against the contact surfaces formed by the upper and lower horizontal surfaces. The Shore hardness of the elastomer is at least 75, which means that the compression path and thus the risk of the shaft components lying above the spacer ring coming loose from the road bed is extremely low.
Aus der DE-A-2 536 631 ist zwar ein mit einer Metallbewehrung ausgestatteter Elastomerring bekannt, dieser Ring dient aber als Dichtung zwischen zwei mit einer rhombusförmigen Nut versehenen Schachtringen und hat keinerlei stoßdämpfende Funktion.From DE-A-2 536 631 an elastomer ring equipped with metal reinforcement is known, but this ring serves as a seal between two shaft rings provided with a rhombus-shaped groove and has no shock-absorbing function.
Die Bewehrung des aus Elastomer bestehenden Zwischenlegerings kann die Form von zwei rundumlaufenden Stahldrähten haben. Es sind aber auch eingebettete Drahtgitter oder Lochblechstreifen denkbar. Wenn in bevorzugter Ausgestaltung des erfindungsgemäßen Zwischenlegerings an der Innen- und Außenseite eingebettete Blechkantprofile in H-, U-oder L-Form verwendet werden, dann sind die Schenkel bzw. Kanten dieser Blechkantprofile gegen die Berührungsflächen zurückgesetzt.The reinforcement of the intermediate ring made of elastomer can take the form of two all-round steel wires. However, embedded wire mesh or perforated metal strips are also conceivable. If, in a preferred embodiment of the spacer ring according to the invention, sheet metal profiles in H, U or L shape are used on the inside and outside, the legs or edges of these sheet metal profiles are set back against the contact surfaces.
In den Zeichnungen sind Schnitte durch mehrere Ausführungsformen eines Zwischenlegerings dargestellt. So enthält der Zwischenlegering 1 nach Fig. 1 als Metallbewehrung im Profil zwei vollständig umlaufende Stahldrähte 2, 3 in der Nähe der inneren und äußeren Grenzfläche. Die Metallbewehrung bei dem Zwischenlegering 1' nach Fig. 2 besteht aus innen und außen eingebetteten Stahlblechprofilen 4, 5 mit T-Profil, wobei der Quersteg eine geringere Höhe hat als die Dicke des Zwischenlegerings. Bei dem Zwischenlegering 1" nach Fig. 3 hat die Metallbewehrung 6, 7 das Stahlblechprofil eines liegenden H oder U. Der Elastomer kann etwas über die liegenden Schenkel des Profils gezogen sein.In the drawings, sections through several embodiments of an intermediate ring are shown. 1 contains, as metal reinforcement in profile, two completely
Bei Schachtbauteilen , die an den Berührungsfläche eine stufenförmige Nut/Federverbindung aufweisen, hat der Zwischenlegering nur die radiale Breite der Nut und der benachbarten Berührungsfläche und wird dort unverschiebbar eingelegt.In the case of manhole components which have a step-shaped tongue and groove connection on the contact surface, the intermediate spacer ring has only the radial width of the groove and the adjacent contact surface and is inserted there immovably.
Claims (5)
- Structural part for maintenance and inspection manholes of drains or supply systems shaped as intermediate ring made of Elastomer with high shore hardness, sitting close to both adjacent manhole component parts with its full upper and lower horizontal surfaces, characterized in that the intermediate ring (1, 1', 1") is provided at least with a metal reinforcement (2 .... 7) which is embedded into the intermediate ring so that it stands back from the contact surfaces formed by the upper and lower horizontal surfaces.
- Structural part according to claim 1, characterized in that the metal reinforcement is formed at least as two completely closed rings (2, 3) made of steel wire.
- Structural part according to claim 1, characterized in that the metal reinforcement is a steel blade profile of H- (6) , U- (7) or L-shape.
- Structural part according to claim 3, characterized in that the sides or edges of the metal reinforement consisting of a steel blade profile stand back from the contact surfaces.
- Structural part according to the claims 1 through 4, characterized in that the hardness of the Elastomer is at least 75 shore.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE9209027U | 1992-07-06 | ||
| DE9209027U DE9209027U1 (en) | 1992-07-06 | 1992-07-06 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0578044A1 EP0578044A1 (en) | 1994-01-12 |
| EP0578044B1 true EP0578044B1 (en) | 1997-04-09 |
Family
ID=6881307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP93109918A Expired - Lifetime EP0578044B1 (en) | 1992-07-06 | 1993-06-22 | Component for control- or maintenance-manholes |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0578044B1 (en) |
| AT (1) | ATE151484T1 (en) |
| DE (2) | DE9209027U1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE29616149U1 (en) * | 1996-09-17 | 1998-01-22 | Finger Baustoffe Gmbh | Concrete component and shaft system |
| DE19641873C2 (en) * | 1996-09-19 | 2003-01-30 | Renauer Kanalbau Gmbh H | Manhole, gully or gutter cover |
| DE19810893C1 (en) * | 1998-03-13 | 1999-09-16 | Gek Ges Zur Erforschung Der Ka | Cover mounting for drain pipe |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1008611A (en) * | 1973-09-06 | 1977-04-19 | Richard D. Hein | Elastomeric structural bearing |
| DE2536631C3 (en) * | 1975-08-16 | 1979-08-02 | Woco Franz Josef Wolf & Co, 6483 Bad Soden-Salmuenster | Sealing ring made of elastic material for joints between manhole rings made of concrete |
| US4582449A (en) * | 1982-12-17 | 1986-04-15 | City Of Milwaukee | Manhole sealing device |
| DE3709822A1 (en) * | 1987-03-25 | 1988-10-13 | Klaus Koehler | Shaft neck as a connection between an underground space and the earth's surface |
| DE3839320C2 (en) * | 1988-11-22 | 1999-01-07 | Passavant Werke | Drainage and inspection shaft |
-
1992
- 1992-07-06 DE DE9209027U patent/DE9209027U1/de not_active Expired - Lifetime
-
1993
- 1993-06-22 DE DE59306087T patent/DE59306087D1/en not_active Expired - Fee Related
- 1993-06-22 EP EP93109918A patent/EP0578044B1/en not_active Expired - Lifetime
- 1993-06-22 AT AT93109918T patent/ATE151484T1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| ATE151484T1 (en) | 1997-04-15 |
| DE59306087D1 (en) | 1997-05-15 |
| EP0578044A1 (en) | 1994-01-12 |
| DE9209027U1 (en) | 1992-09-10 |
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