WO2016193599A1

WO2016193599A1 - Support for a panel of a section of guided transport track

Info

Publication number: WO2016193599A1
Application number: PCT/FR2016/051276
Authority: WO
Inventors: David VIAN
Original assignee: Systra
Priority date: 2015-05-29
Filing date: 2016-05-27
Publication date: 2016-12-08
Also published as: FR3036711B1; AU2016269737A1; GB2554290A; CA2987083A1; SE1751494A1; GB201718729D0; US20180148896A1; KR20180016726A; CN107849826A; RU2017141370A; FR3036711A1; HK1252282A1

Abstract

The invention concerns, in particular, a section of guided transport track intended to be attached to a ballastless track bed (15) characterised in that said section comprises: a track panel (20) comprising two longitudinal members (21, 22) and at least one structure (23, 24) transverse to the longitudinal members, each longitudinal member (21, 22) comprising a top longitudinal groove (25) for receiving a rail; a plurality of panel supports (31, 32, 33, 34), each support comprising at least one stud (35) for attachment to the track bed, a cradle (37) for supporting a longitudinal member (22) mounted vertically movable in said stud (35), and means for the vertical movement of said cradle (37) relative to said stud (35) in such a way as to be able to adjust the height of the panel (20) relative to said track bed (15), and define the superelevation of the section of track formed in this way by means of a coordinated adjustment of the various cradles (37). 20

Description

SUPPORT OF A GUIDE TRANSPORT ROAD SECTION PANEL

1. Technical field of the invention

The invention relates to non-ballast tracks for guided transport vehicles, such as railway or pneumatic vehicles. More particularly, the invention relates to a support for the guided transport path sections for forming, by a successive arrangement of a plurality of sections, a non-ballast track, a track section and a corresponding ballastless track.

2. Technological background

Since the birth of railroad tracks, it is known to install these tracks on ballast, that is to say on a bed of crushed stone or gravel. The ballast makes it possible to distribute on the platform of the underlying track the forces transmitted by the sleepers under the action of the rolling loads. The ballast thus makes it possible to limit the settlement of the platform. The ballast finally allows to embed sleepers to limit their movements and deformations.

For several years, the projects of track without ballast multiply, in particular the tracks on slabs of concrete. Indeed, these track systems have the advantages of minimizing track maintenance costs and extending their service life.

These non-ballast tracks generally comprise a concrete or asphalt foundation layer on which a cast-in-place or prefabricated concrete slab is used to support and anchor the rails of the track.

One of the difficulties encountered when producing such a track without ballast is the precision required when laying the concrete slabs on the underlying subgrade because it directly determines the geometry of the track. In addition, in the event of a necessary overhang on the route of the track, it is necessary to adapt the earthwork of the foundation layer to form the cant prior to the placement of the concrete slabs. Adjusting the center distance can also cause technical problems. Finally, after adjusting the geometry of the track, it is necessary to seal or anchor the concrete slabs so that they are permanently immobilized.

The inventors have therefore sought to propose a new concept of support and track without ballast which solves at least some of the disadvantages of known channels without ballast.

3. Objectives of the invention

The invention aims to overcome at least some of the disadvantages of known non-ballast channels.

In particular, the invention aims to provide, in at least one embodiment, a support for making a fit of the tracks without ballast and maintenance of parts constituting this support while being simple design and compact.

The invention also aims to provide a section of track that does not require a slab of concrete or poured asphalt to be installed.

The invention also aims to provide, in at least one embodiment, a track section whose geometry (de ver s, height) can be adjusted after installation.

The invention also aims to provide, in at least one embodiment, a track section that allows a correction of the geometry of the channel thus formed after its installation and at any time during the life of the channel thus formed .

The invention also aims to provide, in at least one embodiment, a section of track that can be quickly installed by the track laying teams.

The invention also aims to provide, in at least one embodiment, a track section which has easy maintenance.

The invention also aims to provide, in at least one embodiment, a section of track that is insensitive to flooding.

The invention also aims to provide, in at least one embodiment, a section of track that can be installed on various types of structure, such as tunnels, viaducts, including viaducts U, bridges , booms, etc.

The invention also aims to provide, in at least one embodiment, a section of track that can be adapted to different types of guided vehicles, including rail vehicles or vehicles, high-speed passenger traffic vehicles, freight, metro, tramway, and equivalent vehicles.

4. Presentation of the invention

To do this, the invention relates to a support of a guided transport section section panel intended to be fixed on a track platform without ballast, the panel extending along a longitudinal axis and the support comprising:

at least one fixing stud adapted to be fixed to the platform,

at least one cradle adapted to support the panel, and

means for vertically moving said cradle with respect to said pad so as to be able to adjust the height of the panel relative to said platform and to define the deviation of the track section,

the cradle being mounted vertically movable along a vertical axis perpendicular to the longitudinal axis in said stud.

Thus, such support is simple design and allows economic gain and time in laying on site. Moreover, the fact that the cradle moves vertically in the stud makes it possible to provide a compact support and to guide the cradle in its movements.

In particular, the lane section panel extends horizontally along the longitudinal axis.

According to a feature of the invention, the fixing stud comprises at least one side wall connected to a bottom and extending along the vertical axis, said side wall being configured to guide the movement of said cradle along the vertical axis.

According to another characteristic of the invention, the support comprises several cradles moving and being guided in the same pad.

According to yet another characteristic of the invention, said means for vertical displacement of a cradle comprise:

a wedge wedge mounted substantially movable along a transverse axis with respect to said pad and carrying said cradle,

horizontal locking means, along the transverse axis, of said cradle relative to said pad so that a horizontal displacement of said block causes a vertical displacement of said cradle, said block and the cradle having complementary means configured to guide the cradle; displacement of the hold relative to the cradle, and

means for horizontal displacement along the transverse axis of said wedge in said stud.

According to this advantageous variant, the vertical displacement of the cradle relative to the stud is achieved by a horizontal displacement, along the transverse axis, of a wedge wedge relative to the stud, said wedge carrying said cradle, conjugated to a horizontal locking of the cradle.

According to yet another characteristic of the invention, said horizontal locking means of said cradle relative to the stud comprising a threaded insert engaged in said stud and extending horizontally through the stud bearing against said cradle.

According to yet another characteristic of the invention, said means for horizontal displacement of the wedge comprise a set screw bearing against said wedge wedge and engaged in the stud extending horizontally through said stud.

According to this variant, the horizontal blocking of the cradle is achieved by an adjusting screw connected in a threaded insert engaged in the stud and which bears against the cradle to prevent any horizontal movement.

In addition, the cradle being blocked horizontally against the pad, a horizontal displacement of the wedge wedge causes the sliding of the inclined planes one on the other, which results in a vertical displacement of the cradle, its horizontal displacement being constrained by the blocking means.

Advantageously, each support comprises means for horizontal displacement of said wedge wedge in said stud.

According to yet another characteristic of the invention, the cradle comprises at least two complementary lower inclined planes with two inclined planes upper wedges, the two lower inclined planes being oriented in substantially opposite directions. The two complementary inclined planes form a sliding connection between the hold and the cradle. These planes also allow the cradle to be in continuous contact with the hold.

According to yet another characteristic of the invention, the bottom of the stud comprises at least a first upper inclined plane on which said shim is mounted, the first upper inclined plane being complementary with a lower inclined plane of the shim. In this way, in the absence of a bearing force for example of said adjusting screw on said wedge, said wedge slides on said inclined plane of said stud. Thus, according to this variant, the adjusting screw abuts against the wedge wedge to push and thus ensure a vertical upward movement of the support cradle. In case of retraction of the adjusting screw, the corner wedge spontaneously comes by gravity slide on the inclined plane of the stud, which causes a vertical downward movement of the support cradle.

According to another variant, one end of the adjusting screw is integral with the wedge wedge so that a displacement of the screw relative to the stud causes, in the direction of rotation printed on the screw, an upward movement or down the support cradle carried by the wedge wedge.

Advantageously, but not exclusively, the first upper inclined plane of the bottom forms with the transverse axis an angle of between 10 ° and 20 °.

Advantageously, but not exclusively, the first upper inclined plane of the bottom forms with the longitudinal axis an angle of between 5 ° and 15 °.

According to yet another characteristic of the invention, the lower inclined planes of the cradle each form, with the longitudinal axis, an angle of between 10 ° and 20 °.

According to a characteristic of the invention, the stud comprises two lateral walls connected to said bottom, said bottom comprising a central plane inclined higher with respect to the transverse axis between the side walls, the first upper inclined plane of the bottom being arranged between one of the side walls and the upper inclined central plane so as to form a bowl. In this way, the bowl makes it possible to guarantee the stability of the hold housed in this bowl and there is no effort likely to get her out of her home.

According to yet another feature of the invention, at least one of the side walls comprises at least one through orifice of axis parallel to the longitudinal axis and adapted to receive means for disengaging the wedge from the bowl. Such a configuration is simple in design and allows the easy insertion of these disengagement means.

The invention could also relate to a support of a guided transport section section panel intended to be fixed on a track platform without ballast, the support comprising:

at least one fixing stud adapted to be fixed to the platform,

at least one cradle able to support the panel, and

means for vertical displacement, along a vertical axis, of said cradle with respect to said pad so as to be able to adjust the height of the panel relative to said platform and to define the deviation of the channel section, the displacement means comprising at least a wedge wedge movably mounted substantially along a transverse axis, perpendicular to the vertical axis, relative to said stud,

said wedge carrying the cradle and said cradle comprising at least two complementary lower inclined planes with two upper inclined planes of the wedge, the two lower inclined planes being oriented in substantially opposite directions.

The invention further relates to a guided transport path section for attachment to a track platform without ballast, the track section comprising a track panel comprising:

- Two longitudinal members extending along a longitudinal axis, each sill further comprising an upper longitudinal groove for receiving a rolling element and / or guiding a guided transport vehicle, such as a rail, and

at least one structure integral with said longitudinal members and extending transversely between them,

the track section comprising a plurality of panel supports according to one any of the aforesaid characteristics, adapted to be attached to said track platform and configured to support said panel above said track platform so as to adjust the height of the panel relative to said platform and to define the back of the track. track section thus formed by a coordinated setting of the different cradles.

A section of lane according to the invention thus makes it possible to adjust the precise geometry of the lane after the installation of the lane on the platform of the lane. In particular, the height of each sill (and therefore the height of each guide element and / or bearing housed in the groove of the sill, hereinafter referred to as "rail" for simplicity) can be adjusted, after installation. This height of the sill (that is to say the distance that separates the platform from the sill) is defined and adjusted by a displacement of the support cradle of a sill. This displacement of the cradle is obtained by the implementation of the means of vertical displacement of the cradle.

Throughout the text, the term "platform" of the track defines a landscaped ground on which the track section according to the invention is intended to be fixed. The track platform corresponds to the terracing of the track on which the studs of the track section are directly fixed. According to the invention, this platform is devoid of any ballast.

In addition, each sill being supported by at least one support - preferably two sill supports - a coordinated setting of the cradles of the different supports allows to form a cant. To do this, the supports of a sill are adjusted to a different height of the supports of the other sill, which allows to rotate the track panel around a longitudinal direction axis, thus forming the back. According to an advantageous variant, the track section is configured to allow the pivoting of the panel about a longitudinal axis whose position is coincident with the tread of the rail supported by the sill whose height has remained fixed, thus forming the slope . According to the invention, a section of track does not require forming a cant directly on the earthwork of the track prior to the installation of the track. This devers can be formed after the installation, by an inclination of track panel, which facilitates the laying of the track.

In addition, a track section according to the invention allows compensation differential settlements of the platform of the track by an individual adjustment of each stud. The adjustment function of the track section according to the invention also allows adjustment and correction of the geometry of the track during its lifetime. The accuracy of the earthworks is also less critical than with prior art tracks by the possibility of being able to refine the height of each sill with respect to the platform and to make up for any earthworks defects.

A section of track according to the invention is directly attached to the platform of the track and does not require the pouring of a slab of concrete or asphalt. Also, the realization of a transport path implementing sections of track according to the invention is performed more quickly than with the prior art ballastless track techniques.

In addition, the track extends above the platform, allowing water to pass under the lane sign in case of flooding of the platform.

Each liner of a lane panel of a section according to the invention comprises an upper longitudinal groove for receiving a rolling element and / or guiding a guided transport vehicle, such as a rail and its system. associated fixation. The section can therefore be used with different types of vehicle, the type of which is defined during the installation of the rolling element and / or guide.

In all the following and for the sake of simplicity, the term "rail" is used generically to define the rolling elements and guide elements that can be housed in the grooves of each sill, it being understood that this is a rail as such for a rail vehicle, but a running track for a pneumatic vehicle.

A section according to the invention comprises a cradle mounted vertically movable in the stud and vertical displacement means of this cradle relative to the stud.

According to one embodiment of the invention, the structure comprises minus two ties integral with the stringers. In particular, said sleepers are steel tubes.

According to another embodiment of the invention, the structure comprises at least one slab secured to the longitudinal members. This slab can be advantageously made of concrete.

Advantageously, but not exclusively, the slab comprises a longitudinal central rib formed between the two longitudinal struts. This rib reinforces structurally the slab and also avoids the derailment of the guided vehicle. The vehicle will always remain on the panel.

According to yet another characteristic, the cradle comprises a rounded upper face.

Advantageously, but not exclusively, the upper face is coated with an elastic sole.

Advantageously, each sill has a rounded lower face shaped to the rounded upper face of the cradle. This rounded face is advantageously cylindrical, in the mathematical sense of the term, that is to say that it has a surface defined by the displacement of a line parallel to itself on a generator, which in this case is a Semi circle.

According to this variant, the cradle and the sill have complementary shapes such that the cradle encloses the sill and forms with it a continuous contact area of support. The rounded shape also prevents transverse movement of the sill when mounted and supported by the cradles. Indeed, the side walls of the cradle then form transverse stops.

Advantageously and according to the invention, each sill further comprises two stops arranged transversely on a lower face of the sill and configured to be able to receive between them a cradle so that it can, once housed between the two stops, lock longitudinally each sill.

The stops arranged transversely under each sill prevent longitudinal slippage of the sill relative to said cradle.

Advantageously, but not exclusively, the track section comprises at least two supports per panel. Advantageously, the track section comprises four supports per panel.

According to another embodiment, the track section according to the invention comprises two sill supports.

According to a feature of the invention, said longitudinal members and said supports are formed of concrete.

According to another characteristic of the invention, said fixing stud is mounted on a metal block comprising a metal plate and a plurality of implantation elements welded under the metal plate and extending along the vertical axis perpendicular to the plate. , said metal block being intended to be inserted into said track platform by threshing or driving to fix this support.

Such a metal solid comprises for example several (sixteen in a particular case) implantation elements welded to the metal plate secured to the lower part of the fixing stud.

According to one characteristic of the invention, the implantation elements comprise section sections in the form of an H. Such a characteristic makes it possible to better withstand threshing in order to drive these implantation elements into the platform.

According to another embodiment, the implantation elements comprise a plurality of steel tubes.

The fastening of the fastening stud to the metal solid can be of any type. For example, the mounting pad is glued to the metal plate, or bolted to the metal plate.

According to another variant, the stud is fixed to the platform by micropiles, for example by three micro-piles. These micro-piles can be dark, beaten or drilled in the platform of the track.

According to another characteristic of the invention, the solid mass comprises pad setting means arranged on the metal plate.

The invention further relates to a track without a ballast for a guided transport vehicle comprising a track platform and a plurality of track sections. track comprising any one of the aforementioned features successively fixed on said track platform.

The invention also relates to a track section and a track formed of a plurality of track sections according to the invention characterized in combination by all or some of the features mentioned above or below.

The invention could also relate to a section of guided transport path intended to be fixed on a track platform without ballast, said section comprising:

a track panel comprising two sills extending along a longitudinal axis and at least two cross members integral with said sills and extending transversely between them, each sill further comprising an upper longitudinal groove for receiving a rolling element and / or guiding a guided transport vehicle, such as a rail, and,

a plurality of panel supports adapted to be attached to said track platform and configured to support said panel above said track platform, each support comprising a platform attachment pad, a support cradle of a sill mounted vertically movable in said pad, and means for vertically moving said cradle relative to said pad so as to adjust the height of said sill relative to said platform, and to define the devers of the section of lane thus formed by a coordinated setting of different cradles. This object may include all or some of the foregoing features.

a track panel comprising two longitudinal members extending along a longitudinal axis and at least one structure integral with said longitudinal members and extending transversely between said longitudinal members;

a plurality of panel supports adapted to be attached to said track platform and configured to support said panel above said track platform so as to be able to adjust the height of the panel relative to said platform and to define the track section backs, and

a metal block comprising a metal plate and a plurality of implantation elements welded under the metal plate and extending along a vertical axis perpendicular to the plate, said metal block being intended to be inserted into said track platform by threshing or sinking to secure this support. This object may include all or some of the foregoing features.

5. List of figures

Other objects, features and advantages of the invention will become apparent on reading the following description given solely by way of non-limiting example and which refers to the appended figures in which:

FIG. 1 is a schematic perspective view of a track portion according to a first embodiment of the invention formed by two successive track sections according to one embodiment of the invention, FIG. 2 is a diagrammatic view of perspective of a portion of a track section according to a second embodiment of the invention, Figure 3 is a schematic perspective view of a track section according to the first embodiment of the invention including a support is represented in exploded perspective,

FIG. 4 is a diagrammatic perspective view from above of a lane panel of a lane section according to the first embodiment of the invention,

FIG. 5 is a diagrammatic perspective view from below of a lane panel of a lane section according to the first embodiment of the invention,

FIGS. 6 and 7 show perspective views of an embodiment of a track panel according to the invention,

FIGS. 8 and 9 show perspective views of another mode of production of a track panel according to the invention,

FIG. 10 is a perspective view of an embodiment of a support according to the second embodiment of the invention,

FIG. 11 is a cross-sectional view of the support of FIG. 10; FIG. 12 is a longitudinal sectional view of the support of FIG.

FIG. 13 is a schematic exploded perspective view of another embodiment of a support of a track section according to one embodiment of the invention,

FIG. 14 is a diagrammatic sectional view of the support of FIG. 13; FIG. 15 is a schematic exploded perspective view of an alternative embodiment of a support of a section according to another embodiment; of the invention,

FIG. 16 is a diagrammatic sectional view of the support of FIG. 15,

FIG. 17 is a schematic cross-sectional view of a track section according to the second embodiment of the invention on which a vertical displacement of the track is illustrated,

FIG. 18 is a schematic cross-sectional view of a track section according to the second embodiment of the invention, in which a rotation of the track about a longitudinal axis is illustrated;

FIG. 19 is a diagrammatic cross-sectional view of a track section according to the first embodiment of the invention on which a vertical displacement of the track is illustrated,

FIG. 20 is a schematic cross-sectional view of a track section according to the first embodiment of the invention, in which a rotation of the track about a longitudinal axis is illustrated;

FIG. 21 is a schematic perspective view of a portion of a section according to a first embodiment of the invention on which longitudinal locking stops of the sill are highlighted,

FIGS. 22 and 23 respectively illustrate a first position and a second position of the holds of a support according to the second mode of embodiment of the invention,

FIG. 24 is a schematic perspective view of an embodiment of a metal bulkhead of a track section according to the invention,

FIG. 25 is a schematic perspective view of another embodiment of a metal block of a track section according to the invention,

- Figure 26 is a schematic sectional view of a track section according to one embodiment of the invention mounted on a track platform. 6. DETAILED DESCRIPTION OF AN EMBODIMENT OF THE INVENTION In the figures, the scales and the proportions are not strictly adhered to for purposes of illustration and clarity. Throughout the following detailed description with reference to the figures, unless otherwise indicated, each element of a support as arranged with respect to a track section and each element of a track section is described as is arranged when the track section is mounted and secured to a horizontal track platform. This arrangement is shown in particular in FIGS. 1 and 2.

In addition, identical, similar or similar elements are designated by the same references. Finally, the terms longitudinal, transverse and vertical are used in a nonlimiting manner with reference to the trihedron L, T, V as shown in the figures. L represents a longitudinal axis corresponding to the main direction of the track section. The longitudinal axis L designates in particular the direction in which a guided transport vehicle moves on the track formed by a plurality of track sections according to the invention. T represents a transverse axis perpendicular to the longitudinal axis L. V is a vertical axis perpendicular to the longitudinal axis L and to the transverse axis T. The terms "high", "upper", "lower", "above" above "and" below "are defined in the present invention with respect to the vertical axis V.

As shown in FIG. 1, a track 1 without a ballast according to the invention intended to allow the transport of a guided vehicle, such as a rail or pneumatic vehicle, comprises a track platform 15 without ballast and a plurality of sections. , 17 of lane according to a first embodiment of the invention fixed successively on the platform 15. FIG. only two sections 16, 17 successive. Nevertheless, it goes without saying that in practice, a track or a section of track comprises a multitude of sections of track successively arranged on an earthwork (or platform 15). In Figure 2 is illustrated a portion of a channel section 16 'according to a second embodiment of the invention.

Throughout the rest of the description, a section of track will be described in detail with reference to section 16, 16 'of track, understood that the other track sections may be identical.

As shown in FIG. 3, the track section 16 of the first embodiment comprises a track panel 20 and supports 31, 32, 33, 34 fixed to the platform 15. A support 34 is shown in exploded perspective to make appear the different elements forming the support which are described with reference to Figures 13 and 14 below.

As shown in Figures 3 and 4, the track panel 20 extends horizontally along the longitudinal axis L. The panel 20 comprises two longitudinal members 21, 22 which extend along the longitudinal axis, which merges to the traffic direction of vehicles, once the track is installed. The track panel 20 also comprises a transverse structure extending along the transverse axis T. This transverse structure comprises in this first embodiment two crosspieces 23, 24 which extend in particular transversely to the longitudinal members 21, 22. embodiment, these crosspieces 23, 24 are formed by metal tubes whose ends are secured to the longitudinal members 21, 22. These longitudinal members are preferably formed of concrete. A track panel 20 according to this embodiment has a general ladder shape. According to an undescribed variant, the track panel may comprise concrete sleepers and form other shapes than a ladder. For example, the cross members may be provided at each longitudinal end of the longitudinal members.

The sill 21 will now be described in detail, it being understood that the sill 22 has an identical architecture. The sill 21 comprises an upper longitudinal groove 25 for receiving a rolling element and / or guiding a guided transport vehicle, such as a rail. This groove 25 therefore extends longitudinally along the longitudinal axis L and is configured to receive the guide element or bearing on which the transport vehicle will be able to circulate. In the case of a railway vehicle, the guide element is a rail 41. This groove 25 is also intended to receive the rail fastening means to the sill. The sill 21 also comprises, according to a preferred embodiment, a rib forming a wall 26 extending longitudinally at the lateral edge of the sill 21. This wall 26 can laterally block a vehicle in case of derailment. This wall 26 is therefore a safety member of the track. This wall 26 also serves as a noise-canceling device by blocking the propagation of sound waves emitted due to the interactions of the vehicle and the rail. Each sill also comprises, according to this embodiment, two stops 27, 28 transverse formed on the lower surface of the sill as can be seen in Figure 5. These stops 27, 28 are spaced longitudinally from each other. a distance substantially equal to the longitudinal dimension of a cradle of a support (described hereinafter with reference to FIGS. 13 and 14) so that once the cradle is housed between the two abutments, it ensures a blocking longitudinal, along the longitudinal axis L, of the sill 21 and therefore a blocking of the corresponding channel panel 20. The sill presents in this embodiment, a lower face 47 rounded. Each support 31, 32, 33, 34 is adapted to be fixed to the platform 15 and configured to be able to support a portion of at least one sill.

According to the second embodiment illustrated in Figures 2 and 6 to 9, the section 16 'of track comprises a track panel 20 and supports. The panel 20 also comprises two longitudinal members 21, 22 extending along the longitudinal axis L. These longitudinal members also each comprise an upper longitudinal groove 25 for receiving a rolling element and / or guiding a guided transport vehicle . According to this embodiment, the groove 25 extends along the longitudinal axis but in a discontinuous manner. The transverse structure of the panel 20 comprises a slab 29 extending transversely between the two longitudinal members 21, 22. In particular, the slab 29 is integral with the longitudinal members. This slab 29 is defined in a plane perpendicular to the vertical axis V. The slab 29 comprises a central rib 30 formed between the two longitudinal members relative to the transverse axis T so as to structurally strengthen the slab 29. It also forms anti-derailment means of the guided vehicle. The central rib 30 extends along the axis L. In particular, it is provided in the upper part of the slab 29. According to an alternative embodiment illustrated in Figure 9, the central rib 30 is made in the lower part of the slab 29. The slab is advantageously made of concrete. Each support is adapted to be attached to the track platform and configured to support a portion of at least one sill.

We will now describe the supports in detail, it being understood that the supports have a substantially identical architecture. Each support comprises at least one attachment pad adapted to be fixed to the platform, at least one cradle adapted to support the panel, and means for vertically moving said cradle relative to said block so as to adjust the height of the panel relative to to said platform and to define the devers of the lane section.

With reference to FIGS. 1, 3, 13 to 16 and 22, the support 34, according to the first embodiment, comprises a stud 35 for fixing to the platform 15. This fixing stud 35 comprises a generally cylindrical shape. In particular, the stud 35 comprises a base 35a intended to rest on the platform 15, side walls 35b, a rear wall 35c, and a bottom 35d. The side walls 35b, the rear wall 35c and the bottom 35a form a housing for receiving the other members of the support 35. In particular, the side walls 35b and the rear wall 35c extend along the vertical axis V The side walls 35b are connected to the bottom 35d. These are also connected to the rear wall 35c. The other members of the support comprise a wedge 36 wedge which rests on the bottom 35d of the stud 35, and a cradle 37 for supporting the sill 22 which rests on the wedge 36. As can be seen in particular in FIGS. 14, the wedge 36 and the cradle 37 are installed between the two side walls 35b of the stud 35. In addition, the support comprises a screw 38 for adjusting and a horizontal locking screw 39 of the cradle 37. Each screw extends to through the rear wall 35c of the stud by a threaded hole 53 formed in the rear wall 35c. This tapped hole 53 here has an axis parallel to the transverse axis T. Each tapped hole has a thread conjugate to the thread of the screw that it receives so that the screw is engaged in the rear wall and a rotation of this screw in this threaded hole causes a horizontal displacement, here along the transverse axis T, of this screw relative to the stud 35. The wedge 36 further has an inclined upper plane conjugated to a lower inclined plane of the cradle 37. The wedge 36 also has, according to the embodiment of FIGS. 13 and 14, an inclined lower plane P6 conjugated to an inclined upper plane of the bottom 35d of the stud 35 (see FIG.

Thus, a rotation of the adjusting screw 38 by an operator causes a displacement of the shim 36 on the bottom 35d of the stud 35. This displacement of the wedge wedge 36 causes a sliding on one another of the inclined planes of the wedge 36 and the cradle 37. The cradle 37 being blocked horizontally by the locking screw 39, the cradle 37 is spontaneously driven in vertical displacement in the stud 35. In other words, a rotation of the screw 38 of adjustment makes it possible to raise or lower the cradle 37 in the stud 35 and consequently makes it possible to adjust the height of the sill carried by this support. More precisely still, the lateral walls 35b of the stud make it possible to guide the vertical displacement of the cradle in the stud. We thus mean by the expression the mounting or displacement of the cradle "in the stud" the fact that the cradle is disposed and housed inside the stud 35 and that it is guided inside the stud. The support is compact and the stud can guide the cradle in its movements.

Figures 15 and 16 show a support according to another variant. According to this embodiment, the stud 35 has a flat bottom and the height adjustment means are formed of a single screw 38 which is engaged in the shim 36 to be able to horizontally move the shim 36 in one direction or in the other. 'other. According to this variant embodiment, the means for horizontally locking the cradle are formed of a tube 42 which extends between the side walls of the stud 35.

Referring to Figures 2, 10 to 12, 16, 17, 22 and 23, the support 34 'according to the second embodiment also comprises a stud 35 for attachment to the platform 15. In this stud 35 are mounted several shims 36 and several cradles 37. The stud 35 extends here along the longitudinal transverse axis T. In this stud 35 as shown more precisely in FIG. 10, are mounted four wedges 36 each bearing respectively a cradle 37. In other words, four cradles 37 are housed in the stud 35. In this case of figures, these four cradles 37 are arranged in pairs. Each pair of cradles 37 cooperates by lateral support and sliding or displacement with the same side wall 35b of the pad 35. In other words, the cradle 37 is guided in its vertical displacement relative to a side wall 35b. The stud 35 comprises a projection 40 extending transversely in the stud 35 along the transverse axis T. In particular, the projection 40 extends along the longitudinal axis L. The latter 40 is disposed substantially at the level of the portion median along the axis T. The seam 40 also extends along the vertical axis from the bottom 35a of the stud 35. Of course, the stud 35 can be made without this projection 40. On either side of the protrusion 40 are mounted two shims 36 carrying a cradle 37. In the remainder of this description is described the arrangement of wedges and cradles on one side of the projection 40.

The bottom 35d of the stud 35 comprises a first upper inclined plane P5 on which is mounted a wedge wedge 36. The bottom 35d also comprises an upper inclined central plane P7 with respect to the longitudinal transverse axis T. This central plane inclined upper P7 is arranged between the side walls 35b of the stud 35. In particular, two first inclined top planes P5 are arranged on either side of this inclined central plane P7. In other words, the first upper inclined plane P5 is arranged between a side wall 35b and the upper inclined central plane P7 so as to form a bowl 43. The shim 36 is thus housed in this bowl 43. It is formed in this block four. cuvettes 40 each housing a shim 36. The first upper inclined plane P5 is complementary to the inclined lower plane P6 of the shim 36. The first upper inclined plane P5 forms with the transverse axis T an angle α of between 10 ° and 20 °. (see Figure 11). While the central plane inclined upper P7 forms with the transverse axis T an angle of 15 ° and 30 °. The first upper inclined plane P5 of the bottom 35d also forms with the longitudinal axis L an angle γ of between 5 ° and 15 ° (see FIG. As can be seen in FIGS. 11 and 12, the first upper inclined planes P5, P5 'of the bottom 35d are oriented in opposite directions. Each first plane P5, P5 'of the bottom 35d is inclined towards a lower end of an adjacent side wall 35b.

Each cradle 37 comprises two lower inclined planes PI, P2 complementary with two upper inclined planes P3, P4 of the shim 36. The two lower inclined planes PI, P2 of the cradle 37 are oriented in substantially opposite directions. Similarly for the shim 36, the upper inclined planes P3, P4 are oriented in opposite directions. This makes it possible to promote the displacement of the cradle 37 with respect to the shim 36 and also to allow continuous contact between the shim 36 and the cradle 37. Advantageously, the lower inclined planes P 1, P 2 of the cradle 37 each form with the longitudinal axis L an angle β between 10 ° and 20 °. Advantageously, but not exclusively, the inclined planes P3, P4 of the shim 36 form between them an open V upwards, or towards the cradle 37.

Each cradle 37 also comprises a rounded upper face 48. This upper face 48 is adapted to the rounded shape of the face 47 of the sill 22. Advantageously, but not exclusively, the upper face 48 is coated with a sole 49 of so as to dampen any vertical displacements of the track panel 20. This sole 49 is made of a polymeric material. The polymeric material is, for example, an elastomer.

In this embodiment, the tapped hole 53 for receiving the locking screw 39 is formed in the wall of the projection 40. The tapped hole 53 extends along the transverse axis T. The locking screw 39 of the cradle 37 extends through the stud 35 along the transverse axis T. The rear wall 35c of the bottom comprises the tapped hole 53 'intended to receive the adjusting screw 38 for raising or lowering the cradle 37 in the stud 35.

Thus, a rotation of an adjustment screw 38 by an operator causes a displacement of the corresponding shim 36 on the bottom 35d of the stud 35. This displacement of the wedge 36 causes a sliding on one another of the inclined planes PI , P2, P3, P4 of wedge wedge 36 and cradle 37 carried by this wedge. The cradle 37 being blocked horizontally by the locking screw 39, the cradle 37 is spontaneously driven vertically in the stud 35. Each 35b side wall of the stud can guide the vertical displacement of the cradle in the stud. The support is compact and the stud can guide the cradles in their movements.

Figures 17 to 20 show the different types of adjustment that can be achieved with a section of track according to the embodiments of the invention.

In FIG. 17 and 20, a vertical displacement, along the vertical axis V, of the track panel 20 is achieved by a coordinated action on the adjusting screws 38 of the different supports of the track panel. This adjusts the height of the track panel with respect to the platform 15 by adjusting in a coordinated manner the different cradles of the different supports.

In Figs. 18 and 21, the track panel 20 is pivoted about a longitudinal axis by a cradle adjustment on one side of the panel. This makes it possible to form a slope on the track layout by a slope of the track.

A track section according to the invention therefore allows the track to be adjusted according to two different degrees of freedom.

FIG. 22 shows the abutments 27, 28 formed under the sill 22 between which the cradle 37 is housed to block any longitudinal displacement of the sill 22. Preferably, each sill comprises only two abutments so that in the case where a sill is supported by two supports, only the cradle of one of the two supports is engaged with the two stops to ensure longitudinal locking of the sill.

With reference to FIGS. 12, 23 and 24, each side wall 35b comprises at least one through-hole 44 having an axis parallel to the longitudinal axis L and able to receive disengagement means 45 from the shim 36 of the bowl 43. In particular, the side walls 35b comprise an orifice 44 arranged opposite a shim 36. In the present example, two through holes 44 each pass through the side wall 35b on either side and open each into a bowl 43. disengagement 45 comprise a jack whose rod 46 is illustrated in Figures 22 and 23. In Figure 22, the rod 46 is inserted into a through hole 44 and its end abuts against a lateral edge 54 of the shim 36. The shim 36 is always housed in the bowl 43 because of the plans inclined towards the lower end of the side wall 35b. The rod 46 exerts a force on the shim 36 housed in the bowl so as to extract it from the bowl as shown in FIG. 23.

Figures 24 and 25 are views according to two embodiments of a metal block 50 for fixing the stud 35 in the platform 15. In both embodiments, the metal block 50 comprises a metal plate 51 intended to come into contact with the base 35a of the support 35. The plate has a rectangular shape. However, it could present another form that is adapted to the platform and / or support 34, 34 '. The metal base 50 also comprises a plurality of implantation elements 52 extending from the plate 51 in a direction perpendicular to said plate 51. The implantation elements 52 extend along the vertical axis V. Advantageously , but without limitation, the implantation elements are welded to the metal plate 51. Of course, other means for securing the implantation elements to the plate are conceivable. The length, the diameter and the number of implantation elements 52 are determined according to the ground. According to the embodiment illustrated in Figure 24, the implantation elements 52 comprise section sections in the form of H. These profiles are advantageously made of a metal material such as steel. According to the embodiment illustrated in FIG. 26, the implantation elements 52 comprise tubes 52. These tubes are also advantageously made of a metallic material such as steel. Following the example of FIG. 26, the metal block 50 may comprise sixteen tubes welded to the metal plate 51. The metal block 50 is intended to be fixed on a platform 15 by threshing or driving. The base 35a of the support 35 may be fixed to the metal plate 51 by gluing or by bolting means or any other equivalent means for securing the base 35a of the support 35 and the metal plate 51 of the metal block 50.

The solid mass 50 also comprises means for wedging the stud. These wedging means are arranged on the metal plate. The wedging means 57 comprise, as in the example shown in FIG. 24, buffers which are arranged on an upper face of said plate 51. Each pad is placed at a corner of the plate 51. The pads are mounted by means of fasteners such as screws or other suitable organs. These buffers 51 serve as a stop when the stud 35 is mounted on the solid mass 50.

Figure 27 is a view of a guided transport section section with a support according to the first embodiment of the invention, the track section being fixed on a platform 15 through the metal masses 50 described above. The platform 15 typically comprises an upper portion 56 of the earthwork and a backfill body 55. These metal beds 50 are preferably determined so that once anchored in the platform 15, implantation elements 52 extend to 55 body embankment of the platform 15. In addition, preferably, the upper surface of the platform 15 is slightly inclined, for example of the order of 4% to facilitate drainage. A section according to the invention makes it possible to compensate if necessary this slight inclination of the platform by an inverse adjustment of the supports.

The invention is not limited to the embodiments described. In particular, other types of architectures for the supports can be envisaged to ensure the function of vertical displacement of the cradles. According to the embodiments described, the vertical displacement of each cradle results from a horizontal or almost horizontal displacement of the wedge wedge. One can imagine other cutscenes to achieve a vertical displacement of the cradle relative to the stud to ensure a height adjustment and / or inclination of the track panel carried by the supports.

Claims

Supporting (31, 32, 33, 34, 34 ') a panel (20) of guided track section (16; 16') for attachment to a track platform (15) without ballast, the panel track extending along a longitudinal axis (L) and the support comprising:

at least one fixing stud (35) that can be fixed to the platform (15),

at least one cradle (37) able to support the panel (20), and

means for vertically displacing said cradle (37) with respect to said pad (35) so as to be able to adjust the height of the panel (20) with respect to said platform (15) and to define the deviation of the channel section,

characterized in that the cradle (37) is mounted vertically movable along a vertical axis (V) perpendicular to the longitudinal axis (L) in said stud (35).

Support (31, 32, 33, 34, 34 ') according to claim 1, characterized in that the stud (35) comprises at least one side wall (35b) connected to a bottom (35d) and extending according to the vertical axis (V), said side wall (35b) being configured to guide said cradle (37) along the vertical axis (V).

Support (31, 32, 33, 34, 34 ') according to claim 1 or 2, characterized in that said means for vertical displacement of a cradle (37) comprise: a wedge (36) movably mounted wedge substantially following the transverse axis (T) with respect to said stud (35) and carrying said cradle (37),

horizontal blocking means, along the transverse axis (T), of said cradle (37) with respect to said pad (35), so that a horizontal displacement of said pad (36) causes said cradle to move vertically (37) said shim (36) and the cradle (37) having complementary means configured to guide movement of the shim (36) relative to the cradle (37), horizontal displacement means, along the transverse axis (T), of said wedge (36) in said stud (35).

Support (31, 32, 33, 34, 34 ') according to claim 3, characterized in that said horizontal locking means of said cradle (37) relative to the stud (35) comprise a threaded insert (39) engaged in said stud (35) and extending horizontally through the stud (35) bearing against said cradle (37).

Support (31, 32, 33, 34, 34 ') according to one of claims 3 or 4, characterized in that said horizontal displacement means of said wedge (36) comprise a screw (38) of adjustment in abutment with said wedge (36) and engaged in said stud (35) extending horizontally through said stud (35).

Support (31, 32, 33, 34, 34 ') according to claim 2, characterized in that the bottom (35d) of the stud (35) comprises at least a first upper inclined plane (P5) on which said shim ( 36), the first upper inclined plane (P5) being complementary with a lower inclined plane (P6) of the shim (36).

Support (31, 32, 33, 34, 34 ') according to any one of the preceding claims, characterized in that the cradle (37) comprises at least two complementary lower inclined planes (P1, P2) with two upper inclined planes ( P3, P4) of the shim (36), the two lower inclined planes (P1, P2) being oriented in substantially opposite directions.

Guided transport track section (16; 16 ') for attachment to a track platform (15) without ballast, the track section comprising a track panel (20) comprising:

two longitudinal members (21, 22) extending along a longitudinal axis, each sill (21, 22) further comprising a longitudinal groove (25) upper part for receiving a rolling element and / or guiding a guided transport vehicle, such as a rail (41), and

at least one structure (23, 24, 29) secured to said longitudinal members (21, 22) and extending transversely between them,

characterized in that the track section comprises a plurality of supports (31,

32, 33, 34, 34 ') of the panel (20) according to any of the preceding claims, adapted to be attached to said track platform (15) and configured to support said panel (20) over said track platform (15) so as to be able to adjust the height of the panel (20) relative to said platform (15) and to define the outlines of the track section thus formed by a coordinated setting of the different cradles (37).

9. Section (16; 16 ') according to the preceding claim, characterized in that the structure comprises at least two crosspieces (23, 24) or a slab (29) secured to the longitudinal members.

10. Section (16; 16 ') according to the preceding claim, characterized in that the slab comprises a central rib (30) formed between the two longitudinal members (21, 22).

11. Section (16; 16 ') according to any one of the preceding claims, characterized in that each sill (21, 22) has a lower face (47) rounded shaped to the upper faces (48) of said cradles (37) of said supports (31, 32, 33, 34, 34 ').

12. Section (16; 16 ') according to any one of the preceding claims, characterized in that it comprises at least two supports (31, 32, 33, 34, 34') per panel. 13. Section (16; 16 ') according to any one of the preceding claims, characterized in that said longitudinal members (21, 22) and said supports (31, 32, 33, 34, 34 ') are formed of concrete.

14. Section (16; 16 ') according to any one of claims 8 to 13, characterized in that said stud (35) for fixing is mounted on a massive (50) metal comprising a plate (51) and a plurality of metal implantation elements welded under the metal plate (51) and extending along an axis perpendicular to the plate, said solid mass (50) being intended to be inserted into said channel platform (15) by threshing or sinking for fix this support.

15. Track (1) without ballast for guided transport vehicle comprising a platform (15) of track and a plurality of sections (16, 17) of track according to one of claims 8 to 14 fixed successively on said platform (15) of way.