EP0288781B1 - Steel manhole for accomodating tank accessories - Google Patents
Steel manhole for accomodating tank accessories Download PDFInfo
- Publication number
- EP0288781B1 EP0288781B1 EP88105393A EP88105393A EP0288781B1 EP 0288781 B1 EP0288781 B1 EP 0288781B1 EP 88105393 A EP88105393 A EP 88105393A EP 88105393 A EP88105393 A EP 88105393A EP 0288781 B1 EP0288781 B1 EP 0288781B1
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- EP
- European Patent Office
- Prior art keywords
- manhole
- steel wall
- steel
- wall
- flange
- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D90/00—Component parts, details or accessories for large containers
- B65D90/10—Manholes; Inspection openings; Covers therefor
- B65D90/105—Manholes; Inspection openings; Covers therefor for underground containers
Definitions
- the invention relates to a shaft made of steel for receiving tank equipment.
- Such a shaft can be a dome shaft or a fuel dispenser shaft.
- a cathedral shaft is intended for an underground storage container and is used to hold the necessary lines and cables for the tank equipment.
- the dome shaft should enable the storage container and its safety devices to be monitored as freely as possible.
- a fuel dispenser shaft is located below a fuel dispenser and contains its connections and cables for safety devices and the like.
- Dome shafts and petrol pump shafts that have been common up to now consist of bricks that are built on a concrete foundation. It cannot be avoided that smaller amounts of droplets or even larger "accident" quantities of liquid mineral oil products unintentionally escape from pipelines and conveying devices or from their connections. Even if such a dome shaft is constructed correctly, leaks occur in the masonry, which also lead to damage to the insulating layer. As a result, mineral oil products escaping from the pipes in the dome shaft into the Soil surrounding the cathedral shaft and contaminate the groundwater.
- a dome shaft is known from AT-B-252818, the wall of which is formed from at least two prefabricated sections.
- the lower section is firmly connected to the top of a subterranean storage container, while the upper section is detachably connected to the lower section.
- the upper section of the shaft wall has at its upper end an outwardly angled, circumferential flange on which a manhole cover rests.
- the dome shaft described in AT-B-252818 is not liquid-tight, since liquid can emerge from the shaft at the connection point between the lower and upper part of the shaft wall.
- Dome shafts made of plastic are known from DE-GM 71 47 998.
- an annular disc is provided which has a relatively large contact surface.
- the support surface should be designed there so large that it absorbs the surface pressure and can neither be harmful to the cathedral shaft nor the storage tank.
- the large contact surface of the washer absorbs the loads and does not transfer them to the cathedral shaft.
- the present invention has for its object to improve a shaft of the type under consideration so that it is completely liquid-tight, so that a faulty leakage of liquid mineral oil products from the shaft is reliably avoided.
- the shaft should be designed so that it can be driven even by heavy vehicles.
- the shaft has a steel wall which is connected in one piece to an outwardly angled, circumferential steel flange which is received in a concrete ring.
- the concrete ring surrounds the upper end section of the steel wall and projects above it in height.
- the steel wall is preferably provided with an outer and an inner insulating layer. If the formation of the concrete ring is such that it lies below the flange on the outer insulation layer and is essentially flush with the inner surface of the inner insulation layer above the flange, no liquid can accumulate in this area, since the inner walls of the concrete ring and the steel wall smoothly into one another pass over.
- the inner wall of the concrete ring can also be insulated.
- the concrete wreath is expediently poured at the installation site and contains reinforcement in order to be able to safely absorb the acting forces.
- the pipe ends for the suction line and the ventilation lines, as well as at least one cable pipe socket are usually passed through the shaft wall. While in the previously usual shafts the wall openings are subsequently sealed with concrete mortar, and in this area there is again the risk that liquid mineral oil products leak through leaks, it is advantageously proposed according to the invention to weld the pipe ends and the cable pipe connection (s) into the steel wall. This measure creates a completely tight connection to the steel wall. For retrofitting or conversion measures, additional pipe ends can be welded in stock and initially sealed.
- the dome shaft according to the invention preferably has a manhole cover over the concrete ring, which lies over a large area on the concrete ring and is placed on the entire surface of the concrete ring with a layer of concrete mortar, preferably about 2 cm thick. In this way, traffic loads from driving on the cathedral shaft are safely borne.
- the steel wall of the dome shaft is welded to the steel storage container in a liquid-tight manner.
- the dispenser shaft according to the invention which is welded to be liquid-tight due to its construction, rests on a concrete foundation, the lower end of the steel wall being welded onto a steel plate, the edge of which projects like a flange over the steel wall.
- the lower end portion of the steel wall is included in the concrete foundation along with the steel plate.
- a container (1) made of steel for underground storage of liquid mineral oil products is partially shown, onto which the steel wall (2) of a dome shaft (3) is welded in a liquid-tight manner.
- the dome shaft (3) contains the necessary tank equipment, of which only the suction line (4) is shown in the figures.
- the steel wall (2) has at its upper end an angled, circumferential flange (5) which is accommodated in a concrete ring (6) made of reinforced in-situ concrete.
- the concrete ring (6) also serves to compensate for the height and, with its lower, smaller end section, lies against an outer insulating layer (7) of the steel wall (2), while its predominant part projects beyond the flange (5).
- the inner surface of the concrete ring (6) is flush with the inner surface of the steel wall (2), which is also provided with an insulating layer.
- a concrete mortar layer (8) for embedding a manhole cover (9) that can be driven over is applied to the concrete ring (6).
- the pipe end (10) of the suction line (4) is welded into the steel wall (2) on both sides.
- the suction line (4) is welded to the pipe end (10) at the installation point of the dome shaft, as indicated in FIG. 1 by the weld seam (11).
- Fig. 1 is also seen on both sides in the steel wall (2) welded additional pipe end (12) that is provided for any retrofitting or conversion measures and is sealed until use.
- a cable pipe socket (which is described with reference to FIGS. 2 and 3) can also be provided (not shown in FIG. 1).
- the cable pipe socket is also welded into the steel wall (2).
- FIGS. 2 and 3 show a fuel dispenser shaft (13) which also has a steel wall (14) with a circumferential flange (15) which is angled at the top.
- the lower end of the steel wall (14) is welded onto a steel plate (16), the peripheral edge of which projects beyond the steel wall (14) in a flange-like manner, this flange being identified by the reference number (17) in FIGS. 2 and 3.
- the upper flange (15) is integrated in a concrete ring, which is formed by an island concrete base (19) of a dispensing system. Fastening brackets (20) for attaching the housing of a petrol pump are anchored in this island concrete base.
- FIG. 2 it can be seen that pipe ends (21) and (22) for the connection of suction lines are welded on both sides in the steel wall (14) in the dispenser shaft (13).
- Fig. 3 also shows a cable pipe socket (23) welded into the steel wall (14) on both sides, to which cable pipes with gasoline-resistant seals are connected at the installation point.
- the dispenser shaft (13) is provided with spare pipe ends (24) and (25), which are welded into the steel wall (14) on both sides.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
Description
Die Erfindung betrifft einen Schacht aus Stahl zur Aufnahme von Tankausrüstung.The invention relates to a shaft made of steel for receiving tank equipment.
Bei einem derartigen Schacht kann es sich um einen Domschacht oder um einen Zapfsäulenschacht handeln. Ein Domschacht ist für einen unterirdischen Lagerbehälter bestimmt und dient zur Aufnahme der erforderlichen Leitungen und Kabel der Tankausrüstung. Der Domschacht soll eine möglichst ungehinderte Überwachung des Lagerbehälters und seiner Sicherheitseinrichtungen ermöglichen. Ein Zapfsäulenschacht befindet sich unterhalb einer Zapfsäule und enthält deren Anschlüsse sowie Kabel für Sicherheitseinrichtungen und dergleichen.Such a shaft can be a dome shaft or a fuel dispenser shaft. A cathedral shaft is intended for an underground storage container and is used to hold the necessary lines and cables for the tank equipment. The dome shaft should enable the storage container and its safety devices to be monitored as freely as possible. A fuel dispenser shaft is located below a fuel dispenser and contains its connections and cables for safety devices and the like.
Bisher übliche Domschächte und Zapfsäulenschächte bestehen aus Ziegelsteinen, die auf ein Betonfundament aufgemauert sind. Es läßt sich nicht vermeiden, daß kleinere Tropfmengen oder auch größere "Unfall"-Mengen flüssiger Mineralölprodukte unbeabsichtigt aus Rohrleitungen und Fördereinrichtungen oder aus deren Anschlüssen austreten. Auch wenn ein derartiger Domschacht konstruktiv richtig ausgebildet ist, treten Undichtigkeiten im Mauerwerk auf, die auch zu einer Beschädigung der Isolierschicht führen. Dies hat zur Folge, daß im Domschacht aus den Rohrleitungen ausgetretene Mineralölprodukte in das den Domschacht umgebende Erdreich gelangen und das Grundwasser verunreinigen können.Dome shafts and petrol pump shafts that have been common up to now consist of bricks that are built on a concrete foundation. It cannot be avoided that smaller amounts of droplets or even larger "accident" quantities of liquid mineral oil products unintentionally escape from pipelines and conveying devices or from their connections. Even if such a dome shaft is constructed correctly, leaks occur in the masonry, which also lead to damage to the insulating layer. As a result, mineral oil products escaping from the pipes in the dome shaft into the Soil surrounding the cathedral shaft and contaminate the groundwater.
Aus diesem Grunde ist bereits vorgeschlagen worden, in den gemauerten Domschacht einen Domschachtkragen aus Stahl einzusetzen, der im unteren Bereich des Domschachtes eine Auffangwanne bildet. Dieser Domschachtkragen ist mit einem dauerelastischen Mörtel gegenüber der Domschachtwand abgedichtet. Diese Ausbildung hat zwar den Vorteil, daß verhältnismäßig geringe Mengen ausgetretener Mineralölprodukte aufgefangen werden können. Wenn die Mineralölprodukte jedoch das obere Ende des Domschachtkragens übersteigen, besteht die Gefahr, daß sie durch den dauerelastischen Mörtel hindurchtreten, da hierzu bereits kleinste Poren ausreichen. Außerdem können im oberen, durch den Domschachtkragen ungeschützten Mauerwandbereich des Schachtes Undichtigkeiten auftreten, durch die die Mineralölprodukte aus dem Domschacht austreten können.For this reason, it has already been proposed to insert a steel shaft collar into the brick dome shaft, which collar forms a collecting trough in the lower area of the shaft. This cathedral shaft collar is sealed with a permanently elastic mortar against the cathedral shaft wall. This training has the advantage that relatively small amounts of leaked mineral oil products can be collected. However, if the mineral oil products exceed the upper end of the dome shaft collar, there is a risk that they will pass through the permanently elastic mortar, since even the smallest pores are sufficient. In addition, leaks can occur in the upper wall wall area of the shaft, which is unprotected by the dome shaft collar, through which the mineral oil products can escape from the dome shaft.
Dieselben Probleme bestehen bei den bisher üblichen Zapfsäulenschächten, die ebenfalls aus Ziegelsteinen aufgemauert sind.The same problems exist with the previously usual fuel pump manholes, which are also made of bricks.
Aus der AT-B-252818 ist ein Domschacht bekannt, dessen Wandung aus mindestens zwei vorgefertigten Teilstücken gebildet ist. Dabei ist das untere Teilstück mit der Behälteroberseite eines unterirdischen Lagerbehälters fest verbunden, während das obere Teilstück lösbar mit dem unteren Teilstück verbunden ist. Das obere Teilstück der Schachtwandung weist an seinem oberen Ende einen nach außen abgewinkelten, umlaufenden Flansch auf, auf dem ein Schachtdeckel aufliegt. Der in der AT-B-252818 beschriebene Domschacht ist nicht flüssigkeitsdicht, da an der Verbindungsstelle zwischen dem unteren und oberen Teilstück der Schachtwandung Flüssigkeit aus dem Schacht heraustreten kann.A dome shaft is known from AT-B-252818, the wall of which is formed from at least two prefabricated sections. The lower section is firmly connected to the top of a subterranean storage container, while the upper section is detachably connected to the lower section. The upper section of the shaft wall has at its upper end an outwardly angled, circumferential flange on which a manhole cover rests. The dome shaft described in AT-B-252818 is not liquid-tight, since liquid can emerge from the shaft at the connection point between the lower and upper part of the shaft wall.
Aus dem DE-GM 71 47 998 sind Domschächte aus Kunststoff bekannt. Gemäß dem DE-GM 71 47 998 ist eine Ringscheibe vorgesehen, die eine relativ große Auflagefläche aufweist. Die Auflagefläche soll dort so groß gestaltet werden, daß sie den Flächendruck aufnimmt und weder dem Domschacht noch dem Lagertank schädlich werden kann. Die große Auflagefläche der Ringscheibe nimmt also die Belastungen auf und überträgt sie nicht auf den Domschacht.Dome shafts made of plastic are known from DE-GM 71 47 998. According to DE-GM 71 47 998, an annular disc is provided which has a relatively large contact surface. The support surface should be designed there so large that it absorbs the surface pressure and can neither be harmful to the cathedral shaft nor the storage tank. The large contact surface of the washer absorbs the loads and does not transfer them to the cathedral shaft.
Der vorliegenden Erfindung liegt die Aufgabe zugrunde, einen Schacht der betrachteten Art so zu verbessern, daß er vollkommen flüssigkeitsdicht ist, so daß zuverlässig ein fehlerhafter Austritt von flüssigen Mineralölprodukten aus dem Schacht vermieden ist. Dabei soll der Schacht so ausgeführt sein, daß er auch von schweren Fahrzeugen befahrbar ist.The present invention has for its object to improve a shaft of the type under consideration so that it is completely liquid-tight, so that a faulty leakage of liquid mineral oil products from the shaft is reliably avoided. The shaft should be designed so that it can be driven even by heavy vehicles.
Diese Aufgabe wird bei einem Schacht der betrachteten Art erfindungsgemäß durch die im Kennzeichen des Patentanspruchs 1 angegebenen Merkmale gelöst. Vorteilhafte Weiterbildungen der Erfindung sind in den Unteransprüchen gekennzeichnet.This object is achieved according to the invention in a shaft of the type under consideration by the features specified in the characterizing part of patent claim 1. Advantageous developments of the invention are characterized in the subclaims.
Gemäß der Erfindung hat der Schacht eine Stahlwand, die mit einem nach außen abgewinkelten, umlaufenden Stahlflansch einstückig verbunden ist, der in einem Betonkranz aufgenommen ist.
Der Betonkranz umgreift den oberen Endabschnitt der Stahlwand und überragt diesen in der Höhe. Bei dieser Ausbildung ist ein unbeabsichtigter Austritt flüssiger Mineralölprodukte aus dem Inneren des Schachtes durch dessen Wandung mit absoluter Sicherheit vermieden, da die Flüssigkeit auch im Anschlußbereich der Stahlwand an den Betonkranz, der gleichzeitig dem Höhenausgleich dient, keinen Weg ins Äußere des Schachtes finden kann. Überraschenderweise ergeben sich bei der erfindungsgemäßen Ausbildung auch keine Probleme, wenn der Schacht befahren wird, da die auftretenden Verkehrslasten (SLW 30) über entsprechende Abmessungen des Betonkranzes derart in den Untergrund abgetragen werden, daß die verbleibenden, auf den Lagerbehälter übertragenen Kräfte unbedenklich sind. Ein entsprechender statischer Nachweis ist von der Anmelderin geführt worden.According to the invention, the shaft has a steel wall which is connected in one piece to an outwardly angled, circumferential steel flange which is received in a concrete ring.
The concrete ring surrounds the upper end section of the steel wall and projects above it in height. With this design, accidental leakage of liquid mineral oil products from the inside of the shaft through the wall of the shaft is avoided with absolute certainty, since the liquid cannot find a way into the outside of the shaft even in the connection area of the steel wall to the concrete rim, which also serves to compensate for the height. Surprisingly, with the design according to the invention, there are also no problems when the shaft is being driven over, since the traffic loads (SLW 30) occurring are transferred into the ground via corresponding dimensions of the concrete ring in such a way that the remaining forces transmitted to the storage container are harmless. The applicant has provided corresponding structural evidence.
Die Stahlwand ist vorzugsweise mit einer Außen- und einer Innenisolierschicht versehen. Wenn die Ausbildung des Betonkranzes so getroffen ist, daß dieser unterhalb des Flansches an der Außenisolierschicht anliegt und oberhalb des Flansches im wesentlichen mit der Innenfläche der Innenisolierschicht fluchtet, kann sich in diesem Bereich keine Flüssigkeit ansammeln, da die Innenwände des Betonkranzes und der Stahlwand glatt ineinander übergehen. Die Innenwand des Betonkranzes kann ebenfalls isoliert sein.The steel wall is preferably provided with an outer and an inner insulating layer. If the formation of the concrete ring is such that it lies below the flange on the outer insulation layer and is essentially flush with the inner surface of the inner insulation layer above the flange, no liquid can accumulate in this area, since the inner walls of the concrete ring and the steel wall smoothly into one another pass over. The inner wall of the concrete ring can also be insulated.
Der Betonkranz wird zweckmäßigerweise an der Einbaustelle gegossen und enthält eine Bewehrung, um die einwirkenden Kräfte sicher aufnehmen zu können.The concrete wreath is expediently poured at the installation site and contains reinforcement in order to be able to safely absorb the acting forces.
Sowohl bei Domschächten als auch bei Zapfsäulenschächten werden üblicherweise die Rohrenden für die Saugleitung und die Belüftungsleitungen als auch zumindest ein Kabelrohrstutzen durch die Schachtwandung hindurchgeführt. Während bei den bisher üblichen Schächten die Wandöffnungen nachträglich mit BetonMörtel abgedichtet werden, und in diesem Bereich wiederum die Gefahr besteht, daß flüssige Mineralölprodukte durch Undichtigkeiten austreten, wird gemäß der Erfindung mit Vorteil vorgeschlagen, die Rohrenden und den oder die Kabelrohrstutzen in die Stahlwand einzuschweißen. Mit dieser Maßnahme ist ein vollkommen dichter Anschluß an die Stahlwand geschaffen. Für Nachrüst- oder Umbaumaßnahmen können auch zusätzliche Rohrenden auf Vorrat eingeschweißt und zunächst dichtgesetzt werden.Both in dome shafts and in fuel dispenser shafts, the pipe ends for the suction line and the ventilation lines, as well as at least one cable pipe socket, are usually passed through the shaft wall. While in the previously usual shafts the wall openings are subsequently sealed with concrete mortar, and in this area there is again the risk that liquid mineral oil products leak through leaks, it is advantageously proposed according to the invention to weld the pipe ends and the cable pipe connection (s) into the steel wall. This measure creates a completely tight connection to the steel wall. For retrofitting or conversion measures, additional pipe ends can be welded in stock and initially sealed.
Der erfindungsgemäße Domschacht weist vorzugsweise über dem Betonkranz eine Schachtabdeckung auf, die großflächig auf dem Betonkranz aufliegt und mit einer Beton-Mörtelschicht von vorzugsweise etwa 2 cm Dicke auf die ganze Fläche des Betonkranzes aufgesetzt ist. Damit werden Verkehrslasten aus dem Befahren des Domschachtes sicher abgetragen. Die Stahlwand des Domschachtes ist flüssigkeitsdicht auf den Lagerbehälter aus Stahl aufgeschweißt.The dome shaft according to the invention preferably has a manhole cover over the concrete ring, which lies over a large area on the concrete ring and is placed on the entire surface of the concrete ring with a layer of concrete mortar, preferably about 2 cm thick. In this way, traffic loads from driving on the cathedral shaft are safely borne. The steel wall of the dome shaft is welded to the steel storage container in a liquid-tight manner.
Der erfindungsgemäße, durch seinen Aufbau flüssigkeitsdicht geschweißte Zapfsäulenschacht ruht auf einem Betonfundament auf, wobei das untere Ende der Stahlwand auf eine Stahlplatte aufgeschweißt ist, deren Rand flanschartig über die Stahlwand hinausragt. Der untere Endabschnitt der Stahlwand ist zusammen mit der Stahlplatte in das Betonfundament aufgenommen.The dispenser shaft according to the invention, which is welded to be liquid-tight due to its construction, rests on a concrete foundation, the lower end of the steel wall being welded onto a steel plate, the edge of which projects like a flange over the steel wall. The lower end portion of the steel wall is included in the concrete foundation along with the steel plate.
Nachfolgend werden zwei bevorzugte Ausführungsformen der Erfindung mit Bezug auf die Zeichnung beschrieben. Dabei zeigen:
- Fig. 1
- einen Vertikalschnitt durch einen erfindungsgemäßen Domschacht;
- Fig. 2
- einen Vertikalschnitt durch einen erfindungsgemäßen Zapfsäulenschacht, und
- Fig. 3
- einen Vertikalschnitt durch den Zapfsäulenschacht gemäß Fig. 2 entlang einer Linie III-III in Fig. 2.
- Fig. 1
- a vertical section through a cathedral shaft according to the invention;
- Fig. 2
- a vertical section through a dispenser shaft according to the invention, and
- Fig. 3
- 3 shows a vertical section through the dispenser shaft according to FIG. 2 along a line III-III in FIG. 2.
In Fig. 1 ist teilweise ein Behälter (1) aus Stahl zur unterirdischen Lagerung flüssiger Mineralölprodukte dargestellt, auf den die Stahlwand (2) eines Domschachtes (3) flüssigkeitsdicht aufgeschweißt ist. Der Domschacht (3) enthält die erforderliche Tankausrüstung, von der in den Figuren nur die Saugleitung (4) dargestellt ist.In Fig. 1, a container (1) made of steel for underground storage of liquid mineral oil products is partially shown, onto which the steel wall (2) of a dome shaft (3) is welded in a liquid-tight manner. The dome shaft (3) contains the necessary tank equipment, of which only the suction line (4) is shown in the figures.
Die Stahlwand (2) weist an ihrem oberen Ende einen abgewinkelten, umlaufenden Flansch (5) auf, der in einem Betonkranz (6) aus bewehrtem Ortbeton aufgenommen ist. Der Betonkranz (6) dient zugleich dem Höhenausgleich und liegt mit seinem unteren, kleineren Endabschnitt an einer Außenisolierschicht (7) der Stahlwand (2) an, während sein überwiegender Teil den Flansch (5) überragt. Die Innenfläche des Betonkranzes (6) fluchtet mit der ebenfalls mit einer Isolierschicht versehenen Innenfläche der Stahlwand (2).The steel wall (2) has at its upper end an angled, circumferential flange (5) which is accommodated in a concrete ring (6) made of reinforced in-situ concrete. The concrete ring (6) also serves to compensate for the height and, with its lower, smaller end section, lies against an outer insulating layer (7) of the steel wall (2), while its predominant part projects beyond the flange (5). The inner surface of the concrete ring (6) is flush with the inner surface of the steel wall (2), which is also provided with an insulating layer.
Auf den Betonkranz (6) ist eine Beton-Mörtelschicht (8) zur Bettung einer befahrbaren Schachtabdeckung (9) aufgebracht.A concrete mortar layer (8) for embedding a manhole cover (9) that can be driven over is applied to the concrete ring (6).
Das Rohrende (10) der Saugleitung (4) ist beidseitig in die Stahlwand (2) eingeschweißt. Die Saugleitung (4) wird an der Einbaustelle des Domschachtes an das Rohrende (10) angeschweißt, wie in Fig. 1 durch die Schweißnaht (11) angedeutet ist. In Fig. 1 ist ferner ein beidseitig in die Stahlwand (2) eingeschweißtes zusätzliches Rohrende (12) zu erkennen, daß für eventuelle Nachrüst- oder Umbaumaßnahmen vorgesehen ist und bis zum Gebrauch dichtgesetzt ist. Beim Ausführungsbeispiel gemäß Fig. 1 kann auch ein Kabelrohrstutzen (der anhand der Fig. 2 und 3 beschrieben wird) vorgesehen sein (in Fig. 1 nicht gezeigt). Der Kabelrohrstutzen ist ebenfalls in die Stahlwand (2) eingeschweißt.The pipe end (10) of the suction line (4) is welded into the steel wall (2) on both sides. The suction line (4) is welded to the pipe end (10) at the installation point of the dome shaft, as indicated in FIG. 1 by the weld seam (11). In Fig. 1 is also seen on both sides in the steel wall (2) welded additional pipe end (12) that is provided for any retrofitting or conversion measures and is sealed until use. In the exemplary embodiment according to FIG. 1, a cable pipe socket (which is described with reference to FIGS. 2 and 3) can also be provided (not shown in FIG. 1). The cable pipe socket is also welded into the steel wall (2).
In den Figuren 2 und 3 ist ein Zapfsäulenschacht (13) dargestellt, der ebenfalls eine Stahlwand (14) mit einem oben abgewinkelten, umlaufenden Flansch (15) aufweist. Die Stahlwand (14) ist mit ihrem unteren Ende auf eine Stahlplatte (16) aufgeschweißt, deren Umfangsrand die Stahlwand (14) flanschartig überragt, wobei dieser Flansch in den Figuren 2 und 3 mit dem Bezugszeichen (17) kenntlich gemacht ist.FIGS. 2 and 3 show a fuel dispenser shaft (13) which also has a steel wall (14) with a circumferential flange (15) which is angled at the top. The lower end of the steel wall (14) is welded onto a steel plate (16), the peripheral edge of which projects beyond the steel wall (14) in a flange-like manner, this flange being identified by the reference number (17) in FIGS. 2 and 3.
Der untere Endabschnitt der Stahlwand (14) und die damit verbundene Stahlplatte (16) sind in einem Betonfundament (18) aufgenommen.The lower end section of the steel wall (14) and the steel plate (16) connected to it are received in a concrete foundation (18).
Der obere Flansch (15) ist in einen Betonkranz eingebunden, der durch eine Insel-Betonsohle (19) einer Zapfanlage gebildet ist. In dieser Insel-Betonsohle sind Befestigungswinkel (20) zum Anbringen des Gehäuses einer Zapfsäule verankert.The upper flange (15) is integrated in a concrete ring, which is formed by an island concrete base (19) of a dispensing system. Fastening brackets (20) for attaching the housing of a petrol pump are anchored in this island concrete base.
In Fig. 2 ist zu erkennen, daß auch bei dem Zapfsäulenschacht (13) Rohrenden (21) und (22) zum Anschluß von Saugleitungen beidseitig in der Stahlwand (14) verschweißt sind. Fig. 3 zeigt ferner einen beidseitig in die Stahlwand (14) eingeschweißten Kabelrohrstutzen (23), an den an der Einbaustelle Kabelrohre mit benzinfesten Dichtungen angeschlossen werden. Auch der Zapfsäulenschacht (13) ist vorsorglich mit Reserverohrenden (24) und (25) versehen, die beidseitig in die Stahlwand (14) eingeschweißt sind.In Fig. 2 it can be seen that pipe ends (21) and (22) for the connection of suction lines are welded on both sides in the steel wall (14) in the dispenser shaft (13). Fig. 3 also shows a cable pipe socket (23) welded into the steel wall (14) on both sides, to which cable pipes with gasoline-resistant seals are connected at the installation point. As a precaution, the dispenser shaft (13) is provided with spare pipe ends (24) and (25), which are welded into the steel wall (14) on both sides.
Claims (12)
- Manhole for accommodating tank accessories, comprising a steel wall (2, 14), the upper end of which is integrally connected to an outwardly angled encircling steel flange (5, 15),
characterized in that- the steel wall (2, 14) is made integral,- the concrete ring (6, 19), the inner diameter of which corresponds substantially to the inner diameter of the manhole and the outer diameter of which is greater than the outer diameter of the steel flange (5, 15), engages round an upper end portion of the steel wall (2, 14) and projects beyond the latter vertically, and- the concrete ring (6, 19) is connected sealingly to the steel wall (2, 14) in that the steel flange (5, 15) is received in the concrete ring (6, 19). - Manhole according to claim 1,
characterized in
that the steel wall (2, 14) is provided with an outer and an inner insulating layer (7) and that the concrete ring (6, 19) hears beneath the flange (5, 15) on the outer insulating layer (7) whilst above the flange (5, 15) it is at least approximately flush with the inner insulating layer. - Manhole according to claim 2,
characterized in
that the flange (5, 15) is provided with an insulating layer on both sides. - Manhole according to any one of claims 1 to 3,
characterized in
that the concrete ring (6, 19) consists of reinforced cast-in-place concrete. - Manhole according to any one of claims 1 to 4, tube ends for suction and ventilating conduits being led through the manhole wall,
characterized in
that the tube ends (10, 12, 21, 22, 24, 25) are welded into the steel wall (2, 14). - Manhole according to any one of claims 1 to 5, a cable tube also being led through the manhole wall,
characterized in
that the cable tube (23) is welded into the steel wall (14). - Manhole according to claim 5 or 6,
characterized in
that a bilateral welding in the steel wall (2, 14) is provided. - Manhole according to any one of claims 5 to 7,
characterized in
that for subsequent fitting or modification steps additional tube ends (12, 24, 25) are welded on both sides into the steel wall (2, 14). - Manhole according to any one of claims 1 to 8, which is constructed as dome manhole and can support heavy traffic,
characterized in
that the steel wall (2) is welded in liquid-tight manner onto a storage container (1) of steel for the storage of liquid mineral oil products and that over the concrete ring (6) a manhole cover (9) is arranged. - Dome manhole according to claim 9,
characterized in
that the entire upper side of the concrete ring (6) is covered by the manhole cover (9). - Manhole constructed as gasoline pump manhole according to any one of claims 1 to 8, which rests on a concrete foundation,
characterized in
that the lower end of the steel wall (14) is welded onto a steel plate (16), the edge (17) of which projects in flange-like manner beyond the steel wall (14), and that the lower end portion of the steel wall (14) engages with the steel plate (16) into the concrete foundation (18). - Gasoline pump well according to claim 11,
characterized in
that the concrete ring is the island concrete base (19) of a pump installation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT88105393T ATE78786T1 (en) | 1987-04-29 | 1988-04-05 | STEEL CHAMBERS FOR TANK EQUIPMENT. |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3714343 | 1987-04-29 | ||
| DE19873714343 DE3714343A1 (en) | 1987-04-29 | 1987-04-29 | STEEL SHAFT FOR TANKA EQUIPMENT |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0288781A2 EP0288781A2 (en) | 1988-11-02 |
| EP0288781A3 EP0288781A3 (en) | 1990-02-07 |
| EP0288781B1 true EP0288781B1 (en) | 1992-07-29 |
Family
ID=6326543
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP88105393A Expired - Lifetime EP0288781B1 (en) | 1987-04-29 | 1988-04-05 | Steel manhole for accomodating tank accessories |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0288781B1 (en) |
| AT (1) | ATE78786T1 (en) |
| DE (2) | DE3714343A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102040060A (en) * | 2009-10-14 | 2011-05-04 | 玉田工业株式会社 | Pipe protection device of underground storage container |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE29502938U1 (en) * | 1995-02-22 | 1995-04-13 | Alcatel Kabel AG & Co., 30179 Hannover | Device for accommodating the assemblies of active and passive nodes in telecommunications systems |
| DE29602552U1 (en) * | 1996-02-14 | 1996-03-28 | Alcatel Kabel AG & Co., 30179 Hannover | Device for accommodating the assemblies of active and passive nodes in telecommunications systems |
| US6889948B2 (en) | 2001-12-06 | 2005-05-10 | Malcom R. Melancon | Flange for connecting fan to manway |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE7634508U1 (en) * | Aulmich, Fritz | |||
| DE8319616U1 (en) * | 1983-12-22 | Thüner, Udo Th., 4740 Oelde | Auxiliary device for insertion into the cover storage of manhole openings | |
| DE7147998U (en) * | 1900-01-01 | Nau S | Heavy-duty dome shaft cover | |
| US2327628A (en) * | 1940-03-14 | 1943-08-24 | Ewing Robert | Thermal shield for tank heads |
| AT252818B (en) * | 1965-08-31 | 1967-03-10 | Franz Wopfner | Installation on underground liquid containers |
| DE1989789U (en) * | 1968-03-30 | 1968-07-18 | Hans Guenter Moeller | PRE-FABRICATED DOM SHAFT FOR MINERAL OIL TANKS. |
| DE2248616A1 (en) * | 1972-10-04 | 1974-04-11 | Halterner Werkgesellschaft Mit | DEVICE FOR COVERING EARTH SHELLS, IN PARTICULAR DOM SHELLS OF GASOLINE OR OIL TANKS |
| US4527708A (en) * | 1984-05-14 | 1985-07-09 | Plymouth Tank Of West Michigan, Inc. | Liquid tank spillage control system |
-
1987
- 1987-04-29 DE DE19873714343 patent/DE3714343A1/en not_active Withdrawn
-
1988
- 1988-04-05 EP EP88105393A patent/EP0288781B1/en not_active Expired - Lifetime
- 1988-04-05 DE DE8888105393T patent/DE3873140D1/en not_active Expired - Lifetime
- 1988-04-05 AT AT88105393T patent/ATE78786T1/en active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102040060A (en) * | 2009-10-14 | 2011-05-04 | 玉田工业株式会社 | Pipe protection device of underground storage container |
| CN102040060B (en) * | 2009-10-14 | 2014-11-05 | 玉田工业株式会社 | Pipe protection device of underground storage container |
Also Published As
| Publication number | Publication date |
|---|---|
| DE3873140D1 (en) | 1992-09-03 |
| EP0288781A2 (en) | 1988-11-02 |
| ATE78786T1 (en) | 1992-08-15 |
| EP0288781A3 (en) | 1990-02-07 |
| DE3714343A1 (en) | 1988-12-01 |
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