EP2543773B1 - Schachtdeckel - Google Patents

Schachtdeckel Download PDF

Info

Publication number: EP2543773B1
Authority: EP; European Patent Office
Prior art keywords: manhole cover; filling; concrete; accordance; aforementioned
Prior art date: 2011-07-06
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.): Active

Application number

EP12174664.8A

Other languages

German (de)

English (en)

French (fr)

Other versions

EP2543773A1 (de

Inventor

Thomas Lorenz

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.)

Thomas Lorenz Industrietechnik GmbH and Co KG

Original Assignee

Thomas Lorenz Industrietechnik GmbH and Co KG

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.)

2011-07-06

Filing date

2012-07-02

Publication date

2015-06-17

2012-07-02 Application filed by Thomas Lorenz Industrietechnik GmbH and Co KG filed Critical Thomas Lorenz Industrietechnik GmbH and Co KG

2012-07-02 Priority to PL12174664T priority Critical patent/PL2543773T3/pl

2013-01-09 Publication of EP2543773A1 publication Critical patent/EP2543773A1/de

2015-06-17 Application granted granted Critical

2015-06-17 Publication of EP2543773B1 publication Critical patent/EP2543773B1/de

Status Active legal-status Critical Current

2032-07-02 Anticipated expiration legal-status Critical

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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
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/6851—With casing, support, protector or static constructional installations
- Y10T137/6966—Static constructional installations
- Y10T137/6991—Ground supporting enclosure
- Y10T137/6995—Valve and meter wells
- Y10T137/7021—Covers

Definitions

the invention relates to a manhole cover according to the preamble of claim 1.
a manhole cover which consists only of the two components of a floor and a filling.
material for the bottom of the manhole cover the same material is preferably used as for a manhole, which is to be closed with the manhole cover, is mentioned as an example of high density polyethylene.
the manhole serves as access to the sewer system for inspection purposes. Where the manhole cover can be arranged and what loads it withstands is not mentioned.
U1 From the DE 298 01 640 U1 is a generic foreign manhole cover known.
This manhole cover has at the bottom of an outer shell made of sheet metal, in which then the actual bottom is poured, which has a certain layer thickness, and in which case the filling is poured into the ground.
This overall three-layer structure of the manhole cover is complex in terms of production technology. The components or materials used are relatively expensive, so z.
the outer shell provided as a lost molding made of sheet metal, and the bottom is either made of cast steel or - in contrast, larger dimensions - made of polymer concrete.
the filling also consists of Polymer concrete.
the manhole cover is to be arranged in roadways and is designed for correspondingly high load capacities due to a high volume of traffic, high mechanical loads and aggressive weather conditions.
a manhole cover known, which is designed as a filled hollow body.
a shell encloses the filling on all sides, so that the filling must be introduced through a filling opening in the shell.
the shell is preferably made of polyethylene, and the filling is preferably made of concrete.
Lever as are designed as a substantially U-shaped, downwardly open bracket. They can be pulled out of the manhole cover in a vertical direction so that they can be picked up to lift the manhole cover. In the lowered state of rest, the lever pockets each dive into a recess which is provided in the surface of the manhole cover.
the manufacture of the manhole cover is complicated because a hollow body must be filled, the openings of the hollow body, which are required for the vertical mobility of the lever ashes, either complicate this filling, or later, after hardening of the filling, the manhole cover must be repeatedly pierced, to create channels through which the lever pockets can extend.
a lid which does not serve as a manhole cover, but serves to cover trenches in road surfaces, and which is designed as a metal plate.
the lid is used when the excavation work is stopped and the road surface is opened for traffic.
the metal plates are dimensioned accordingly stable and therefore heavy.
Omega-shaped lever pockets are provided, which are rotatably mounted at its two ends in the cover plate and from a down-hanging rest position in an upright Use position can be pivoted in which they protrude above the surface of the lid upwards.
a lid having a core with a cell structure and an outer closed cladding layer of a fiber reinforced resin is known.
the lid should expressly endure high dynamic loads, so that z. B. in traffic, the vehicles can drive over the lid.
the core can, for. B. consist of several Balsaholzblöcken, and the cladding layer of a glass fiber reinforced epoxy or polyester resin.
the manufacture of the lid is complicated because two separate parts of the coating layer are produced. A first part of the cladding layer forms a trough, in which then the individual components of the core are inserted. Subsequently, the core is covered with the second part of the cladding layer.
both parts of the cladding layer must be bonded together at all points of contact that they have with each other and with the core structure, and that any air pockets must be avoided to provide a substantially monolithic mass.
Tools for lifting the lid are not provided, but rather the lid has anchor holes which allow the insertion of ground anchors, so that the lid can be fixed by means of these ground anchors to the ground.
manhole covers outside of roads are required.
inspection and maintenance shafts may be provided on private residential land, e.g. As in garage entrances to allow access to the house connections of the sewer for cleaning or inspection purposes.
a mechanical load by heavy trucks is just as little given here as a high volume of traffic or a high road salt load in winter.
Conventional manhole covers are therefore often overqualified for these applications and because of their complex production or unnecessarily expensive because of the expensive materials used.
the invention has for its object to improve a generic manhole cover to the effect that this is possible to produce inexpensively.
the invention proposes, in other words, to create a production-optimized manhole cover, which does not necessarily have to withstand particularly high loads, as is the case for example in traffic, but for example in driveways, on private land u.
a production-optimized manhole cover which does not necessarily have to withstand particularly high loads, as is the case for example in traffic, but for example in driveways, on private land u.
the soil has a layer thickness of at most 5 mm.
sufficient inherent stability of the soil is guaranteed to make it suitable as a casting mold, so as a lost formwork for the concrete filling.
the most economical production of the manhole cover is supported by this comparatively low material thickness of the soil.
the floor consists of glass fiber reinforced plastic.
the soil can also contribute to the strength and compressive strength of the manhole cover contribute.
the soil is economical to produce, so that it can easily remain as a lost formwork even after pouring the filling at this.
a coating, impregnation or other treatment of the concrete filling on its underside is therefore not required to protect against influences that act on the manhole cover from the shaft. Rather, the manhole cover is usable without post-processing, after the concrete filling is cured in the bottom shell.
thermosetting plastic As plastic, a thermosetting plastic is used. This has sufficiently good mechanical properties and a very good economy.
lever ashes may be provided, so that two diametrically opposite points are provided for handling the manhole cover and the manhole cover can be raised or lowered as simply as possible and without jamming.
Both lever ashtrays can be made as equal parts, so that only two different types of parts must be prefabricated, namely the ground and the lever ashes, with a bottom and one or two lever ashes are used for each manhole cover.
the filling itself need not be prefabricated as a component, but is poured in a flowable state into the soil, which thus forms the formwork for the concrete filling.
the proposed manhole cover can be designed for a load of 15t to 20t, in contrast to, for example, manhole covers that are used on public roads and can be loaded up to 40t.
the manhole cover is technically designed for a load of only 5 t, so that correspondingly inexpensive materials can be used or the layer thicknesses of the floor or of the filling can be correspondingly low.
the technically possible load capacity of 5t means a license of up to 1.5t for use in public areas, eg. B.
the manhole cover can advantageously be structurally designed in terms of its materials and layer thicknesses that it is destroyed only at a load of 6t, said force at which the destruction occurs, is referred to as a bursting force.
the cost-effective production of the manhole cover can be advantageously supported by the fact that not only one, but two lever pockets are provided, which are arranged diametrically opposite one another. This way you can the lid can be raised or lowered without jamming, which reduces the burden of the manhole cover compared to the use of only a single lever as, for example, edge loads are reduced by an oblique orientation of the lid.
the load on the individual lifting lugs and the places where the lifting lugs are anchored in the filling is also reduced by using two lifting lugs.
the manhole cover must be designed for these only lower loads.
a lever ashes are formed from a wire, preferably a stainless steel wire whose two ends are anchored in the filling, wherein in the filling a trough is provided, through which extends this wire, so that the middle part of the wire runs within the trough and can be tracked with appropriate lifting tools.
a recessed arrangement of the lever ashes is ensured so that they do not protrude beyond the surface of the manhole cover, which reduces the burden of the lever ashes when passing, driving over o. The like.
the manhole cover is preferably a stainless steel wire whose two ends are anchored in the filling, wherein in the filling a trough is provided, through which extends this wire, so that the middle part of the wire runs within the trough and can be tracked with appropriate lifting tools.
the lever ashtray can be anchored immovably in the filling, instead of being movably mounted between a rest position and a use position.
the production of the manhole cover is simplified in this way and can be carried out more economically. Since it can be assumed that the manhole cover in most applications not daily or weekly, but at most several months or even several years away from the shaft, is associated with additional costs, the handling of the lever as possibly facilitating embodiment of Manhole cover in this majority of cases not economically useful. In view of the long intervals between use of the lever ashes, it is also questionable whether, if necessary, it can actually be moved without any problems or, if necessary, is difficult to navigate due to protection, corrosion and similar influences, in which cases the desired easier handling of the lever ashes would not have been realized.
the wire is not rectilinear but arcuate, wherein it has a curved upwardly extending middle part.
the smallest possible depression of the trough in the filling as large a free space below the middle part of the lever ashes ensures, so that it can be easily detected - even if it is immovably anchored in the filling.
a weakening in the filling which can be effected by the trough and the correspondingly reduced material thickness of the filling, can be kept as low as possible by a flat design of the trough. In this way, a sufficiently stable manhole cover can be created with the least possible use of materials.
the GRP material has no complicated longitudinal rovings, which have particularly good mechanical properties, but the GRP material may advantageously comprise non-directional fiber mats as reinforcing fibers, which are more economical to obtain than the aforementioned rovings.
the achievable by the concrete filling properties of the manhole cover are sufficient anyway, so that the achievable by the soil strength and resilience improvement of the manhole cover ensures sufficient load capacity for the manhole cover even when using such non-directional fiber mats in the ground.
the concrete used as filling must be for the desired strength of the manhole cover no high performance or polymer concrete o. The like., So concrete with special aggregates, but the concrete may be designed for economic reasons as pure mineral concrete.
the sufficient strength or load capacity of the manhole cover can be easily achieved even with such a simple designed concrete material, for example, if the additives used are assembled in a suitable manner, as is known in practice, for example by sand of a certain grain size is used, ie a certain so-called grading curve, so that by matching the individual, different sized aggregates in the concrete already sufficient strength values for the filling, and thus for the entire manhole cover are possible.
1 designates as a whole a manhole cover which essentially consists of concrete, the concrete forming a filling 2 which is poured into a plastic shell which forms a bottom 3 of the manhole cover 1.
the bottom 3 is designed shell-shaped and forms not only the bottom, but also a circumferential side edge.
two troughs 4 are provided, which are diametrically opposed to each other and through which extends a wire forming a lever ashtray 5.
each wire is approximately wave-shaped and is anchored with its two ends in the filling 2, while the middle part of this wire extends upwards and through the trough 4.
the middle part of each wire extends as Lever ashes 5 at a great distance higher than it corresponds to the deepest bottom of the trough 4, so that the lever ashes 5 can be easily understood and accordingly the manhole cover 1 can be handled easily.
a manhole cover 1 For the production of a manhole cover 1, only three different components are used, namely, first, the bottom 3, in which then the filling 2 is filled, wherein a wire is poured as a lever ashtray 5 and enclosed by the filling 2. Of these three different components of the wire or the lever ashtray 5 is used in duplicate, but manufacturing technology to produce only three different components to create the manhole cover 1.
the concrete of the filling 2 is a comparatively simple and inexpensive concrete material, as a purely mineral concrete without polymer additives o. The like. Does not have fiber reinforcements o. The like., So that he for the required strength of the manhole cover 1 a particularly economical production of Manhole cover allows.

Landscapes

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)

EP12174664.8A 2011-07-06 2012-07-02 Schachtdeckel Active EP2543773B1 (de)

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
PL12174664T PL2543773T3 (pl)	2011-07-06	2012-07-02	Pokrywa szybu

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE201110051611 DE102011051611A1 (de)	2011-07-06	2011-07-06	Herstellungsoptimierter Schachtdeckel

Publications (2)

Publication Number	Publication Date
EP2543773A1 EP2543773A1 (de)	2013-01-09
EP2543773B1 true EP2543773B1 (de)	2015-06-17

Family

ID=46395538

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP12174664.8A Active EP2543773B1 (de)	2011-07-06	2012-07-02	Schachtdeckel

Country Status (4)

Country	Link
US (1)	US8454263B2 (pl)
EP (1)	EP2543773B1 (pl)
DE (1)	DE102011051611A1 (pl)
PL (1)	PL2543773T3 (pl)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US8727659B1 (en) *	2013-03-08	2014-05-20	EJ USA, Inc.	Manhole cover with insert
USD724758S1 (en) *	2013-07-16	2015-03-17	William J. Lumme, Jr.	Manhole leveling cover
US9303381B2 (en) *	2013-12-09	2016-04-05	John E Balogh	Handhole and manhole anti-theft insert
JP6228008B2 (ja) *	2013-12-27	2017-11-08	未来工業株式会社	マンホール蓋凹所の閉塞蓋、蓋体及び凹所閉塞マンホール蓋
US10047493B2 (en)	2014-09-05	2018-08-14	Hubbell Incorporated	Hybrid utility cover
US10358285B2 (en) *	2015-04-10	2019-07-23	Channell Commercial Corporation	Thermoset polymer utility vault lid
ES2642935B1 (es) *	2016-05-19	2018-09-13	Manufacturas Y Transformados Ab, S.L.	Tapa para su uso en vías públicas
EP3472393B1 (de) *	2016-06-20	2022-11-30	Basf Se	Schachtabdeckung für schächte, kanalzugänge oder entwässerungsrinnen
WO2018067326A2 (en)	2016-10-06	2018-04-12	Hubbell Incorporated	Utility cover for use with automated metering equipment
US11221233B2 (en)	2016-10-06	2022-01-11	Hubbell Incorporated	Utility cover for use with automated metering equipment
US10240317B2 (en) *	2016-10-10	2019-03-26	Trumbull Manufacturing, Inc.	Cover assembly
US20190161936A1 (en) *	2016-10-10	2019-05-30	Trumbull Manufacturing, Inc.	Cover assembly
US11525235B2 (en)	2016-12-12	2022-12-13	Composite Access Products GP, LLC	Composite manhole cover with embedded detection
US20190309486A1 (en) *	2018-04-10	2019-10-10	Locke Solutions, Llc	Monolithic slotted drain
CN109707028A (zh) *	2019-02-27	2019-05-03	西南交通大学	一种土木工程盖板
ES1270700Y (es) *	2021-05-19	2021-09-30	Mas Juan Manuel Martinez	Proteccion colectiva y senalizacion de registros en edificacion y obra civil

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US149246A (en) *		1874-03-31		Improvement in vault-covers
US783702A (en) *	1903-06-10	1905-02-28	David E Olds	Manhole-cover.
US4013374A (en) *	1975-10-16	1977-03-22	Passavant-Werke Michelbacher Hutte	Cover for manhole structures
GB2145444B (en) *	1983-08-05	1988-04-07	John Patrick Telford	Manhole chambers
DE3469447D1 (en) *	1983-11-26	1988-03-31	John Reginald Newton	Composite article
US4801483A (en) *	1987-02-13	1989-01-31	Power-Tel Products Group, Inc.	High strength, light weight structural composite and method of preparing same
US4974992A (en) *	1988-10-07	1990-12-04	Harter William M	Excavation closure
US5123776A (en) *	1991-01-31	1992-06-23	Advanced Drainage Systems, Inc.	Plastic fillable manhole cover with penetrating handles
DE29801640U1 (de)	1998-01-31	1998-05-20	Meyer, Heike, 10437 Berlin	Schachtabdeckung
USD428658S (en) *	1999-10-06	2000-07-25	Morrison Bros. Company	Manhole cover
USD428999S (en) *	1999-10-06	2000-08-01	Morrison Bros. Company	Manhole cover
US6393771B1 (en) *	2000-02-10	2002-05-28	Michael Alan Stetson	Cover for closing surface disposed utility access opening
US6682257B1 (en) *	2002-03-07	2004-01-27	Raymond Zappe	Cover apparatus for an access opening
US7537413B1 (en) *	2007-01-07	2009-05-26	Ricardo Brugos	Adjustable manhole cover apparatus
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2011
- 2011-07-06 DE DE201110051611 patent/DE102011051611A1/de not_active Withdrawn
2012
- 2012-07-02 EP EP12174664.8A patent/EP2543773B1/de active Active
- 2012-07-02 PL PL12174664T patent/PL2543773T3/pl unknown
- 2012-07-06 US US13/542,772 patent/US8454263B2/en not_active Expired - Fee Related

Also Published As

Publication number	Publication date
US8454263B2 (en)	2013-06-04
DE102011051611A1 (de)	2013-01-10
EP2543773A1 (de)	2013-01-09
PL2543773T3 (pl)	2015-12-31
US20130011194A1 (en)	2013-01-10

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