EP0851955B1 - Verfahren zum anheben eines festen rahmens für eine schachtabdeckung - Google Patents

Verfahren zum anheben eines festen rahmens für eine schachtabdeckung Download PDF

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Publication number
EP0851955B1
EP0851955B1 EP96932463A EP96932463A EP0851955B1 EP 0851955 B1 EP0851955 B1 EP 0851955B1 EP 96932463 A EP96932463 A EP 96932463A EP 96932463 A EP96932463 A EP 96932463A EP 0851955 B1 EP0851955 B1 EP 0851955B1
Authority
EP
European Patent Office
Prior art keywords
manhole cover
cover frame
frame
manhole
ring
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
EP96932463A
Other languages
English (en)
French (fr)
Other versions
EP0851955A1 (de
Inventor
Frede Soerensen
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.)
Furnes-Hamjern NCC AS
Original Assignee
Furnes-Hamjern NCC AS
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Furnes-Hamjern NCC AS filed Critical Furnes-Hamjern NCC AS
Publication of EP0851955A1 publication Critical patent/EP0851955A1/de
Application granted granted Critical
Publication of EP0851955B1 publication Critical patent/EP0851955B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • E02D29/14—Covers for manholes or the like; Frames for covers
    • E02D29/1409—Covers for manholes or the like; Frames for covers adjustable in height or inclination
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F19/00—Hoisting, lifting, hauling or pushing, not otherwise provided for
    • B66F19/005—Lifting devices for manhole covers

Definitions

  • the invention relates to a method for raising a fixed frame for manhole covers.
  • the fixed manhole cover frame mentioned above consists of an annular wall, having a lower flange supported on a manhole frame and internally having a recess upon which the manhole cover rests. Thus, the fixed manhole cover frame is supported directly on the manhole frame.
  • This type of manhole cover frame is frequently used for manholes or wells in roads with heavy and much traffic. When laying a new coat of asphalt it is necessary to raise the manhole cover frame with this layer thickness so that the frame cover is maintained level with the road.
  • US 5 221 155 and US 4 582 450 disclose a segmented ring system to be placed on top of the manhole cover frame to provide a new raised manhole cover frame. These documents do not suggest to use the segmented ring system to support the original manhole cover frame at a raised level.
  • each spacer element in a known manner having a width and a shape to fit the frame of the well or manhole and the flange on the manhole cover frame, and having a thickness that may be uniform along the whole periphery or adapted for inclined positioning of the manhole cover frame, and is characterized in that each spacer element is divided into segments with an inner edge and an outer edge, said inner edge having at least one outwardly protruding abutment member at right angles to the spacer segment, and that the edge of the spacer segments overlap in such a manner that the outer edge on one spacer element abuts against the inner edge of a neighbouring segment.
  • the overlapping between the segments also means that it is almost completely avoided that road materials drift out between the segments as a consequence of the vibrations in the road caused by vehicles etc.
  • the segments are made of cast iron, which is well-suited to absorb the vibrations in the road without cracking and has a good friction against both the concrete in the frame of the well or manhole and the frame for the cover, usually also being made from cast iron.
  • each of the segments 2 comprises an abutment member 4 protruding downwardly against the manhole frame, as well as along the inside teeth 6 separated by recesses 14, and on the outside forms a continuous arc of a circle with the exception of the ends 8 and 10, respectively, shaped in such a manner that the end 8 overlaps the end 10 on the neighbouring segment.
  • the spacer segments may be shaped with a view to inclined siting of the frame, so that the plane formed by the segment surface is inclined. This can be advantageous, if the road, in which the manhole is placed, is on an incline.
  • the spacer segments may also be shaped with a view to rectangular or other geometrical shapes of the frame, and the number of segments may be chosen appropriately with regard to easy handling, i.e. dimensions as well as weight.
  • easy handling i.e. dimensions as well as weight.
  • the recesses 14 between the teeth 6 limit the weight of each segment.
  • Saving in weight is advantageous, as it is contemplated to produce the segments in cast iron, this also meaning that the segments have ample strength, in spite of the recesses, to form the necessary abutment.
  • the use of cast iron is also advantageous, as it is well-suited to absorb the multitudinuous impacts from the road traffic without cracking, and provides good friction between the concrete on the manhole frame and the frame, the latter normally also being made of cast iron.
  • the abutment member 4 When placing a segment 2, the abutment member 4 is placed in abutment against the manhole frame 12 as shown in Figure 2. This makes it possible to have segments in different thicknesses t as indicated in Figure 2, and by placing a number of segments on top of each other it is possible to provide just the appropiate height dimensions. When placing segments on top of each other, the abutment member is, of course, placed so as to hit one of the teeth 6 on the segment below. The teeth, or rather the recesses between them, will improve the possibility for the ring segments to come into secure abutment, if there are irregularities in their supporting basis.
  • the ring 36, cf. Figure 6, can advantageously be provided with welded-on rings 38 or the like as abutments for each of the legs 40 of the tripod. At the same time, this provides a base for the legs of the tripod, so that pressure marks in the asphalt are avoided.
  • a lifting wire In the middle of the tripod there is a lifting wire with a hook 42, and in the top of the tripod there is a lifting device for the wire, i.e. e lifting tackle.
  • FIG. 7 shows the hook 42 of the tripod and the ring 36 placed around the frame 18 prior to the raising of the latter.
  • a lifting device is suspended, having rods 44 engaging the lower side of the recess 24 of the frame for lifting the latter.
  • the lifting device indicated is constructed on the same principle as an inverted umbrella lowered into the well or manhole.
  • the lifting device comprises three, four or a greater number of lifting rods 44 being pivoted outwardly for engagement below the recess 22 via rods 46 assembled in a slide member 50 with a stop 52 on a rod 48.
  • the segment 2 is introduced in the same manner as in Figure 4.
  • the cover frame 26 shown in Figure 5 is, however, of a type with an outwardly protruding flange 28, which makes it necessary to remove material around the frame, but does not require the shape of the segments or the way of installing to be changed.
  • the frame 26 comprises recesses for positioning wedges of which one designated 34 is shown. By using the recesses 34 it is possible to lift the frame by driving in wedges.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Structural Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Underground Structures, Protecting, Testing And Restoring Foundations (AREA)

Claims (5)

  1. Verfahren zum Wiederinstallieren von Schachtabdeckungen für Straßen an einem erhöhten Niveau durch Anheben des Rahmens (18, 26) für die Schachtabdeckung, Plazieren eines oder einer Anzahl von Distanzringen (2) auf der Basis (12), die vorher den Rahmen (18) der Schachtabdeckung trägt, und Absenken des Rahmens (18, 26) der Schachtabdeckung auf diesen Ring oder diese Ringe (2), dadurch gekennzeichnet, dass der Rahmen (18, 26) der Schachtabdeckung nur in eine Position etwas überhalb seines Wiedermontageniveaus angehoben wird, und dass der Distanzring oder die Distanzringe (2) in der Form von Ringsegmentstücken (2), die an ihrem Enden mit komplementär vorstehenden überlappenden Teilen (8, 10) zum Schließen radialer Zusammenstoßfugen geformt sind, montiert werden, indem diese Segmentstücke unter dem Rahmen (18, 26) für die Schachtabdeckung in deren angehobener Position eingeführt werden, wonach der Rahmen für die Schachtabdeckung in seine Wiedermontageposition abgesenkt wird.
  2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass vor dem Anheben eines Rahmens (26) einer Schachtabdeckung der äußerlich glatten Art ein Streifring (36) um den Rahmen (26) für die Schachtabdeckung platziert wird und vorzugsweise als eine Tragebasis für eine Anhebevorrichtung, wie ein Dreibein (40), die verwendet wird, verwendet wird.
  3. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass der Distanzring in Segmente unterteilt ist, vorzugsweise in drei Segmente.
  4. Verfahren nach Anspruch 3, dadurch gekennzeichnet, dass jedes der Segmente mit einem nach unten vorstehenden Widerlagerelement (4) geformt ist, das innen platziert ist.
  5. Verfahren nach Anspruch 3, dadurch gekennzeichnet, dass jedes der Ringsegmente (2), die vorzugsweise aus Gussstahl gefertigt sind, mit einer Reihe von Zähnen (6) entlang einer Kante geformt ist, vorzugsweise der inneren Kante.
EP96932463A 1995-09-27 1996-09-27 Verfahren zum anheben eines festen rahmens für eine schachtabdeckung Expired - Lifetime EP0851955B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DK107995 1995-09-27
DK107995 1995-09-27
PCT/DK1996/000410 WO1997012096A1 (en) 1995-09-27 1996-09-27 Means for raising a fixed frame for manhole covers

Publications (2)

Publication Number Publication Date
EP0851955A1 EP0851955A1 (de) 1998-07-08
EP0851955B1 true EP0851955B1 (de) 2000-06-28

Family

ID=8100768

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96932463A Expired - Lifetime EP0851955B1 (de) 1995-09-27 1996-09-27 Verfahren zum anheben eines festen rahmens für eine schachtabdeckung

Country Status (4)

Country Link
EP (1) EP0851955B1 (de)
AU (1) AU7125496A (de)
DK (1) DK0851955T3 (de)
WO (1) WO1997012096A1 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6161985A (en) * 1997-12-11 2000-12-19 Vernon W. Hinkle Manhole collar assembly
US5934820A (en) * 1997-12-11 1999-08-10 Hinkle; Vernon W. Manhole collar assembly and method for producing same
CN100458023C (zh) * 2004-08-24 2009-02-04 北京仁创制造技术研究院 啮合式安全井盖
DE202012008343U1 (de) * 2012-08-31 2012-09-13 Frank Straßer Schieberkappenziehvorrichtung

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1336134A (fr) * 1962-06-01 1963-08-30 Dispositif pour transmettre l'heure au moyen de signaux électriques
US3331295A (en) * 1965-10-20 1967-07-18 Foundry Products And Methods I Cover assembly
DE1229265B (de) * 1966-02-21 1966-11-24 Diringer O H G W Vorrichtung zum Anheben eines in einem Schacht angeordneten Kanalringes
US4673310A (en) * 1983-11-14 1987-06-16 E.L. LeBaron Foundry Co. Method of and apparatus for adjustably leveling manhole covers, grates and the like
US4582450A (en) * 1984-10-10 1986-04-15 Ronald Neil Universal manhole adjusting ring
US5221155A (en) * 1991-09-24 1993-06-22 Umar, Inc. Vertically adjustable manhole adjusting ring section
US5482400A (en) * 1994-10-03 1996-01-09 National Rubber Technology Inc. Segmented adjustment riser
DK172815B1 (da) * 1994-11-17 1999-08-02 Knud Erik Vester Fremgangsmåde og aggregat til hævning af brøndkarme

Also Published As

Publication number Publication date
DK0851955T3 (da) 2000-11-06
EP0851955A1 (de) 1998-07-08
WO1997012096A1 (en) 1997-04-03
AU7125496A (en) 1997-04-17

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