EP1048784A2 - Voie pour véhicule à lévitation magnétique - Google Patents

Voie pour véhicule à lévitation magnétique Download PDF

Info

Publication number: EP1048784A2
Authority: EP; European Patent Office
Prior art keywords: support; prestressed concrete; guideway; track according; concrete
Prior art date: 1999-04-30
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.): Granted

Application number

EP00108482A

Other languages

German (de)

English (en)

Other versions

EP1048784B1 (fr

EP1048784A3 (fr

Inventor

Hermann C. Prof.Dr.Ing. Flessner

Rolf J. Dipl.-Kfm.Dr.Ing. Werner

Winfried Dipl.-Ing. Mohr

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.)

Rail One GmbH

Original Assignee

Pfleiderer Infrastrukturtechnick 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.)

1999-04-30

Filing date

2000-04-19

Publication date

2000-11-02

2000-04-19 Application filed by Pfleiderer Infrastrukturtechnick GmbH and Co KG filed Critical Pfleiderer Infrastrukturtechnick GmbH and Co KG

2000-11-02 Publication of EP1048784A2 publication Critical patent/EP1048784A2/fr

2000-12-27 Publication of EP1048784A3 publication Critical patent/EP1048784A3/fr

2006-05-24 Application granted granted Critical

2006-05-24 Publication of EP1048784B1 publication Critical patent/EP1048784B1/fr

2020-04-19 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

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Classifications

- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B25/00—Tracks for special kinds of railways
- E01B25/30—Tracks for magnetic suspension or levitation vehicles
- E01B25/305—Rails or supporting constructions
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/20—Producing shaped prefabricated articles from the material by centrifugal or rotational casting
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2/00—Bridges characterised by the cross-section of their bearing spanning structure
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/20—Concrete, stone or stone-like material
- E01D2101/24—Concrete
- E01D2101/26—Concrete reinforced
- E01D2101/28—Concrete reinforced prestressed

Definitions

the invention relates to a driveway for land transport routes, preferably for magnetic levitation trains, e.g. B. TRANSRAPID, with on-site concrete or precast construction manufactured substructures arranged prefabricated guideway girders, which have at least one hollow reinforced prestressed concrete longitudinal member, and with the prestressed concrete side member running across the carriageway on both sides cantilevered guideway slabs manufactured as separate components.
B. TRANSRAPID magnetic levitation trains
Such a guideway is known from DE 298 09 580 U1, the guideway side members there are made of steel.
the previous precast concrete guideway girders are environmentally harmful steel structures - cf. for this, for example, DE 41 15 936 A1 - in principle constructed in such a way that a hollow reinforced prestressed longitudinal member with a trapezoidal shape Cross section is provided, the larger base leg located above left and right is extended.
the extension is usually up to the total width of the route is designed so that only the route side Components of the supporting and guiding system of the guideway (side guide rails, Slide rails and stator packs) must be attached.
Such a prestressed concrete longitudinal beam can only be reasonably economical produce as a shaken concrete part that has a special one at the ends fanned reinforcement is required. This in turn requires a practical one full cross section in the end area to accommodate the reinforcement bars and even in the hollow and middle areas there are still wall thicknesses of at least 30 to 40 cm required to achieve the necessary in shaken concrete construction To ensure strength.
these difficulties also apply with a hybrid construction, with the lateral arms of the prestressed concrete side members are not designed for the full width of the route, but are somewhat shortened. On the shortened arms are screwed onto dimensionally stable steel elements, which in turn are the trackside components of the support and Form or maintain a management system.
the prestressed concrete side member must be used with the shortened arms made by shaking in a mold be, which in turn the difficulties described above with the brings with it increased weight, not only in view of the increased material expenditure, but especially because of the difficult handling the finished parts are undesirable when installed on site.
the invention is therefore based on the object of a guideway for magnetic levitation trains of the type mentioned in such a way that the prestressed concrete longitudinal beams easier, cheaper and with smaller wall thicknesses and thus lower weights can be manufactured.
the invention provides that the one or more Prestressed concrete longitudinal beams as manufactured by means of centrifugal concrete production Prestressed concrete support pipes with flat upper support shoulders for the guideway slabs are trained.
the guideway slabs be both reinforced concrete slabs and sheet steel constructions can, d. H. by not using the prestressed concrete side member on the side the prestressed concrete side member can be concreted with the support legs for the track as a substantially tubular symmetrical spun concrete component manufacture.
This centrifugal concrete production not only enables less Wall thicknesses and thus lower weights, but you get this way and way a continuously hollow support member that has a large inside provides continuous space for laying cables and supply lines.
the support shoulders should, among other things, laterally over the in essentially cylindrical tubular shape projecting reinforcing ribs be, these reinforcing ribs with the order of magnitude stronger cantilevered flanges of the previous guideway girders cannot be compared are.
These protruding ribs to achieve a slightly larger one
the support surface becomes the unbalance of the wearer - which, incidentally, during manufacture can be compensated for by other measures, but what to be discussed further below - kept small enough so that one simple centrifugal concrete production is possible.
the guideway panels are made of a plurality of short spaced Track slab segments are preferably approximately 6 m in length.
These plate segments can be exchanged much faster and in maintenance or Repairs can be dismantled individually from the type holder and thus also easy to repair, especially in the preferred production as a sheet steel construction, In contrast, it is easy to mill in machines and can therefore be machined precisely to the existing concrete slabs.
the plate segments To form a guideway slab, screw connections, similar as with existing threshold systems, simply and permanently on the Prestressed concrete support pipes are attached. Another advantage is that the segments can be assembled exactly.
the division of the guideway slab of a prefabricated guideway girder of about 20 m - 31 m length in a plurality of plate segments not only has the advantage of one easier and also more precise machinability of these plate segments and easier handling.
the guideway slab does not yet need prestressed concrete support pipe when laying it be screwed on so that the weight - regardless of the already considerable Weight saving through the centrifugal concrete production - is reduced again.
the division of the guideway slab into individual slab segments offers the advantage that an easier cross slope of the road in curves can be achieved and in particular the transition areas between the different Slope sections can be made easier.
Prestressed concrete support pipe with retrofitted concrete brackets for storage be provided on the pillars.
Prestressed concrete support pipes Threaded bushings for screwing in protruding into a support bracket Anchor rods can be embedded and in addition, the Prestressed concrete support pipes in the support console's support area also have a roughened Have surface, so that this also results in a better connection between the prestressed concrete support pipe and the support bracket is guaranteed.
Intermediate wedges can be used to elevate the travel path laterally in curve sections between the support shoulders of the prestressed concrete support pipes and the track slabs be introduced, or - especially in the case of very strong cant Curve sections - the prestressed concrete support pipes twisted onto the support brackets his.
the inventive design of a driveway with the way of spun concrete production manufactured prestressed concrete support pipes can also be Excellent use of track with ground-level routing.
Cross support walls provided - a protrusion of about 80 to 100 cm above the Soil is because of the overlap of the Transrapid carriage construction around Sidewalls of the driveway also with the so-called ground-level guideway required on which the precast track beams are seated.
the guideway is at ground level provided that two connected to each other in parallel at a distance in the support area
Prestressed concrete support pipes which together made the one as a separate component
Wear guideway slab preferably in the form of individual slab segments, are supported directly on the ground foundations.
the prestressed concrete support pipes provided with side flats next to the upper support shoulders be at a height of about 80 cm despite the juxtaposition at a distance only have an overall width that is clearly below the width of the route remains.
the construction according to the invention has a sound development from hurled, pre-tensioned, interconnected rectangular tubes with a height of 60 to 80 cm, which is supported directly on the ground foundations are the advantage that you have a lot less foundations per stretch needs. While there were three foundations per 6.20 m track slab had to provide, two ends are sufficient in the construction according to the invention arranged foundations on the total length of the prestressed concrete support pipes from 20 m - 31 m. This means a significant simplification when creating the Driveway.
the space between the flung rectangular tubes is also suitable for the protected reception of cables and supply lines.
the in can be designed essentially as rectangular pipes with particular advantage on the side of a square profile, in turn steel frame screwable to the base foundations in the support area be screwed on.
centrifuged prestressed concrete rectangular pipes can do this via an intermediate wedge carrier be supported on the ground foundations, so that you can not stand for each slope needs special guideway supports, which in turn require special ones Make centrifuge molds necessary.
the disadvantageous effect of bending over large sections can be provided on the one hand be that the prestressed concrete support pipes with a slight curvature after are manufactured in such a way that they are in the stored state due to the Own weight and the weight of the guideway slab on it exactly Take up a horizontal, flat position.
the curvature can go up be dimensioned so that the horizontal position even under traffic load is achieved.
a centrifugal concrete mold is provided, in which the outer shape of the prestressed concrete support pipe with asymmetrical about the axis of rotation distributed support ribs is provided such that in connection with the asymmetrically distributed prestressing steel due to the increased The proportion of concrete in the area of the support shoulders compensates for any imbalance becomes.
Fig. 1 - The guideway construction shown in Figures 1 and 2 for an elevated Route guidance - the several meter high support 1 is only hinted at in FIG. 2 shown and completely omitted in Fig. 1 - consists in essentially from a prestressed concrete support pipe 2 and as separate components manufactured guideway slabs 3, these guideway slabs not being of the same length how the prestressed concrete support tube 2 are formed, but from individual plate segments be produced with a correspondingly shorter length. This makes possible, regardless of the production of these track slabs 3 as reinforced concrete slabs or, as shown, as a sheet steel construction, a considerably easier processing of the track slabs.
the guideway slabs and the actual side member are designed as Longitudinal beam as, at least approximately symmetrical and therefore only slight Unbalancing pipe, which consequently by means of centrifugal concrete production can be manufactured.
the entire superstructure was the track slab 3 shows, together with the supporting longitudinal tube, which has hitherto been customary had a trapezoidal, enlarged cross-section as a one-piece Component has been made, which makes a meaningful centrifugal concrete production almost impossible made.
this component had to be independent in every case be handled as a whole by its type of manufacture.
centrifugal concrete results in a large, continuous interior Cavity 7, which are used to lay cables and supply lines can.
the prestressed concrete support pipe 2 are in the support area on the pillars 1, generally at the ends at 20 m - 31 m long prestressed concrete support pipes threaded bushings 8 inserted into which anchoring rods 9 can be screwed. These are used for anchoring in Support brackets 10 with the help of which the prestressed concrete support pipe 2 with the track slab 3 is supported on the supports 1.
the additionally provided, preferably spring-loaded, support feet 11 are known per se and therefore need this Not be described in more detail.
Track slabs from the prestressed concrete support pipes 2 enable a very simple Elevation of the carriageway in curves, as shown in FIGS. 3 to 5.
the prestressed concrete support tube rotates about its longitudinal axis is, for example, concreted accordingly to the console 10 is.
the split design of the guideway slabs is particularly advantageous as individual short plate segments especially for this cant track increase 3 to 5, as this means that the inclination is not constant within one Precast track with 20 m - 31 m length must remain the same, but the Plate segments of approximately 6.20 m each have different inclinations could.
FIG. 7 and 8 is a schematic view or a section through a Route shown at ground level route guidance.
one or several guideway slabs 3 with a length of about 6.20 m, which are parallel over two Distance from each other and through a rectangular steel tube 14 with each other Prestressed concrete pipes 2 'screwed to the support directly on the floor foundation 15 is supported.
Floor foundations 15, which also have anchoring piers 16 can only be provided at a distance that the Length of a prefabricated guideway girder, i.e. in the exemplary embodiment shown about 20 m - 31 m can be provided, while previously supporting the Prefabricated guideway girders with the help of transverse support walls arranged at 3-meter intervals almost ten times as many foundations were required.
the inner continuous cavity 7 ' which is essentially a rectangular tube trained pre-stressed concrete support pipes 2 ', the space is also particularly suitable between the prestressed concrete rectangular beams to hold cables and supply lines.
Fig. 9 a section corresponding to Fig. 7 is shown, with a through the wedge plate 17 arranged on the foundation 15 has a path inclination as curve elevation is achieved.
FIG. 10 shows an enlarged section through a prestressed concrete support pipe 2, in which also arranged in different circular cylindrical planes 18 and 19 Prestressing steels 20 and 21 are also indicated.
the prestressing steels are in the lower, the support shoulders 4 remote half of the prestressed concrete support pipe 2 packed more densely, possibly also more trained to be in this the lower ones are particularly stressed by tension due to the weight Area to achieve increased reinforcement.
This asymmetrical distribution the reinforcement can now be combined with an asymmetrical distribution of the Supporting ribs 22 for stiffening the shaped plate 23 within a spun concrete form 24 according to FIG.

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Engineering & Computer Science (AREA)
Mechanical Engineering (AREA)
Architecture (AREA)
Civil Engineering (AREA)
Structural Engineering (AREA)
Manufacturing & Machinery (AREA)
Chemical & Material Sciences (AREA)
Ceramic Engineering (AREA)
Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Railway Tracks (AREA)
Control Of Vehicles With Linear Motors And Vehicles That Are Magnetically Levitated (AREA)

EP00108482A 1999-04-30 2000-04-19 Voie pour circulation à lévitation magétique, par exemple TRANSRAPID Expired - Lifetime EP1048784B1 (fr)

Applications Claiming Priority (3)

Application Number	Priority Date	Filing Date	Title
DE19919703A DE19919703C2 (de)	1999-04-30	1999-04-30	Fahrweg für Transrapid
DE19919703		1999-04-30
CA002323977A CA2323977A1 (fr)	1999-04-30	2000-10-19	Passage pour reseaux de transport terrestre

Publications (3)

Publication Number	Publication Date
EP1048784A2 true EP1048784A2 (fr)	2000-11-02
EP1048784A3 EP1048784A3 (fr)	2000-12-27
EP1048784B1 EP1048784B1 (fr)	2006-05-24

Family

ID=25682175

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP00108482A Expired - Lifetime EP1048784B1 (fr)	1999-04-30	2000-04-19	Voie pour circulation à lévitation magétique, par exemple TRANSRAPID

Country Status (3)

Country	Link
EP (1)	EP1048784B1 (fr)
CA (1)	CA2323977A1 (fr)
DE (1)	DE19919703C2 (fr)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
KR20020031674A (ko) *	2000-10-23	2002-05-03	추후제출	경량궤도차용 차도
WO2002075051A3 (fr) *	2001-02-12	2003-01-09	Lina Lichius	Piste de circulation pour vehicules guides sur piste
WO2003023144A1 (fr) *	2001-09-07	2003-03-20	Shanghai Maglev Transportation Development Co., Ltd	Structure de voie pour transport a grande vitesse
WO2003025285A1 (fr) *	2001-09-21	2003-03-27	Shanghai Maglev Transportation Development Co., Ltd.	Structure de voie pour le transit par voie rapide
WO2003102304A1 (fr)	2002-05-28	2003-12-11	Thyssenkrupp Technologies Ag	Voie de communication pour vehicules a sustentation magnetique
WO2004001766A3 (fr) *	2002-06-25	2004-03-18	Polygro Trading Ag	Systeme de contenants pour le transport et le stockage de materiaux fortement radioactifs
WO2004022852A1 (fr) *	2002-08-14	2004-03-18	Pfleiderer Infrastrukturtechnik Gmbh & Co. Kg	Voie pour trains magnetiques
EP1441066A1 (fr) *	2003-01-17	2004-07-28	Ed. Züblin Ag	Dalle de support, préfabriquée en béton, pour train à lévitation magnétique
WO2004063466A1 (fr) *	2003-01-14	2004-07-29	Schmitt Stumpf Frühauf und Partner Ingenieurgesellschaft im Bauwesen mbH	Piste pour trains a sustentation magnetique, et son procede de production
WO2005049921A1 (fr) *	2003-11-18	2005-06-02	Max Bögl Bauunternehmung GmbH & Co. KG	Procede de positionnement precis d'un support de voie et voie
CN107756600A (zh) *	2017-11-20	2018-03-06	上海师范大学	水泥管片圆弧面自动收水抹平装置

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE10038851A1 (de)	2000-08-04	2002-02-14	Boegl Max Bauunternehmung Gmbh	Verfahren zum Herstellen einer Verbindungsstelle an einem Fahrweg
US6951433B2 (en)	2000-08-04	2005-10-04	Dieter Reichel	Device for nonpositively fixing a bracket to a supporting base body
JP2004509247A (ja)	2000-09-12	2004-03-25	マクス、ベグル、バウウンテルネームング、ゲゼルシャフト、ミット、ベシュレンクテル、ハフツング、ウント、コンパニー、コマンディトゲゼルシャフト	走行路支持体
DE10110613B4 (de) *	2001-03-06	2009-06-10	Otmar Fahrion	Fahrwegsegment für eine Magnetschwebebahn
DE10215668A1 (de) *	2002-04-10	2003-10-30	Zueblin Ag	Fahrweg für Magnetschwebebahn
DE10217460C1 (de) *	2002-04-19	2003-12-24	Pfleiderer Infrastrukturt Gmbh	In Schleuderbeton hergestelltes Spannbetontragrohr, insbesondere für Fahrwege von Magnetschwebebahnen
DE20210554U1 (de) *	2002-07-08	2003-11-20	Wilcken, Alexander von, 80939 München	Kopplungsvorrichtung, insbesondere für einen Fahrweg für eine Magnetschwebebahn, und Fahrweg für eine Magnetschwebebahn
DE10239661A1 (de) *	2002-08-24	2004-03-18	Walter Bau-Ag	Fahrweg in modularer Bauweise, inbesondere für eine Magnetbahn
DE10240808A1 (de) *	2002-08-30	2004-03-11	Walter Bau-Ag	Magnetbahnfahrweg aus Stahlträgern im Verbund mit Fahrwegelementen aus Betonfertigteilen
DE102005011838A1 (de) *	2005-03-15	2006-09-21	Pfleiderer Europoles Gmbh & Co. Kg	Schilderbrücke
DE102005057380B4 (de) *	2005-11-30	2009-12-03	Walter Sobolewski	Röhrenartiger, hohler, fester Fahrwegträger
DE102010026586A1 (de)	2010-07-08	2012-01-12	Roland Lipp	Fahrbahn für eine Magnetschwebebahn
DE102010048819A1 (de)	2010-10-20	2012-04-26	Roland Lipp	Hochgeschwindigkeits-Fernverkehrssystem zum Transport von Personen und/oder Lasten

Citations (2)

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DE4115936A1 (de)	1991-05-16	1992-11-19	Dyckerhoff & Widmann Ag	Aus stahl- oder spannbeton bestehender traeger fuer einen fahrweg fuer magnetschwebefahrzeuge
DE29809580U1 (de)	1998-05-28	1998-08-20	Noell Stahl- und Maschinenbau GmbH, 97080 Würzburg	Fahrwegplatte für die Fahrbahn von Magnetbahnzügen

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FR1045807A (fr) *	1951-06-18	1953-12-01		Procédés et appareils de fabrication d'éléments de construction en béton centrifugé et éléments ainsi obtenus
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JPH01160610A (ja) *	1987-12-18	1989-06-23	Sumitomo Constr Co Ltd	多角形中空コンクリート部材の製造用型枠装置
JPH07113435B2 (ja) *	1989-03-31	1995-12-06	中川ヒューム管工業株式会社	遠心成形コンクリート管
FR2746824A1 (fr) *	1996-03-27	1997-10-03	Baudin Chateauneuf Sa	Caissons precontraints pour tablier de pont
DE19619866C2 (de) *	1996-05-17	2003-10-02	Boegl Max Bauunternehmung Gmbh	Fahrweg für Magnetbahnzüge

1999
- 1999-04-30 DE DE19919703A patent/DE19919703C2/de not_active Expired - Fee Related
2000
- 2000-04-19 EP EP00108482A patent/EP1048784B1/fr not_active Expired - Lifetime
- 2000-10-19 CA CA002323977A patent/CA2323977A1/fr not_active Abandoned

Patent Citations (2)

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Publication number	Priority date	Publication date	Assignee	Title
DE4115936A1 (de)	1991-05-16	1992-11-19	Dyckerhoff & Widmann Ag	Aus stahl- oder spannbeton bestehender traeger fuer einen fahrweg fuer magnetschwebefahrzeuge
DE29809580U1 (de)	1998-05-28	1998-08-20	Noell Stahl- und Maschinenbau GmbH, 97080 Würzburg	Fahrwegplatte für die Fahrbahn von Magnetbahnzügen

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
KR20020031674A (ko) *	2000-10-23	2002-05-03	추후제출	경량궤도차용 차도
WO2002075051A3 (fr) *	2001-02-12	2003-01-09	Lina Lichius	Piste de circulation pour vehicules guides sur piste
WO2003023144A1 (fr) *	2001-09-07	2003-03-20	Shanghai Maglev Transportation Development Co., Ltd	Structure de voie pour transport a grande vitesse
US7357084B2 (en)	2001-09-07	2008-04-15	Shanghai Maglev Transportation Development Co., Ltd.	Guideway structure for high-speed track- bound transportation
US7182023B2 (en)	2001-09-21	2007-02-27	Shanghai Maglev Transportation Development Co., Ltd.	Track structure of the rapid track transit
WO2003025285A1 (fr) *	2001-09-21	2003-03-27	Shanghai Maglev Transportation Development Co., Ltd.	Structure de voie pour le transit par voie rapide
WO2003102304A1 (fr)	2002-05-28	2003-12-11	Thyssenkrupp Technologies Ag	Voie de communication pour vehicules a sustentation magnetique
WO2004001766A3 (fr) *	2002-06-25	2004-03-18	Polygro Trading Ag	Systeme de contenants pour le transport et le stockage de materiaux fortement radioactifs
WO2004022852A1 (fr) *	2002-08-14	2004-03-18	Pfleiderer Infrastrukturtechnik Gmbh & Co. Kg	Voie pour trains magnetiques
WO2004063466A1 (fr) *	2003-01-14	2004-07-29	Schmitt Stumpf Frühauf und Partner Ingenieurgesellschaft im Bauwesen mbH	Piste pour trains a sustentation magnetique, et son procede de production
EP1441066A1 (fr) *	2003-01-17	2004-07-28	Ed. Züblin Ag	Dalle de support, préfabriquée en béton, pour train à lévitation magnétique
WO2005049921A1 (fr) *	2003-11-18	2005-06-02	Max Bögl Bauunternehmung GmbH & Co. KG	Procede de positionnement precis d'un support de voie et voie
CN107756600A (zh) *	2017-11-20	2018-03-06	上海师范大学	水泥管片圆弧面自动收水抹平装置
CN107756600B (zh) *	2017-11-20	2024-05-24	上海师范大学	水泥管片圆弧面自动收水抹平装置

Also Published As

Publication number	Publication date
CA2323977A1 (fr)	2002-04-19
EP1048784B1 (fr)	2006-05-24
EP1048784A3 (fr)	2000-12-27
DE19919703C2 (de)	2001-05-23
DE19919703A1 (de)	2000-11-16

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