DE10216573A1 - Construction of elastic bearing for concrete blocks for ballast-free permanent way uses a spring unit placed on ground near aperture in block, and supporting filler fed into aperture for even block support - Google Patents

Abstract

The concrete block (4) forms the mass and a spring unit (20) forms the spring of a mass-spring-system. The spring unit is positioned on the ground near an aperture (6) of the concrete block. After the block has been aligned using spindles (5), the aperture is filled with a supportive filler material (8) up to the spring unit. The spindles are released and the concrete block is placed on the spring unit. The spindles are removed after the filler material has reached support capacity. After the concrete block is fitted, a second concrete layer is applied to it, to carry esp. a track support frame. This is enclosed by a concrete filler layer.

Description

The present invention relates to a method for producing a elastic storage of a concrete component on a surface for production a mass-spring system, where the concrete component is the mass and a arranged between the concrete component and the subsurface Spring device represents the spring, as well as a slab track with storage.

Generic concrete components are used to manufacture Supporting structures, for example, for the ballastless superstructure for the rails of Tracks used as a so-called slab track. AT 370 461 is a Similar process and a supporting structure made afterwards known which u. a. Sleepers for the rails in a ballast bed receives. It is an elastically supported trough made of reinforced concrete Structure-borne noise-absorbing support structure for the superstructure of a railroad used. First, trough-shaped reinforced concrete prefabricated parts are compared the final dimensions of reduced wall thickness in the direction of Track axis laid one behind the other as external formwork. Then the Bottom and side wall parts of the trough using a Inner wall formwork by concreting on site to the required thickness added. Finally, the trough obtained with the superstructure provided, which consists of a ballast bed in the sleepers with the Rails lie or which are alternatively in a ballastless Superstructure can be arranged. The trough itself is on stripe-shaped elastic mats placed on synthetic resin mortar leveling bases rest the sole of the substructure. A disadvantage of this version is it is necessary to place the elastic mats on compensation bases, which is relatively accurate for even loading of the elastic mats must be leveled. In any case, it must be avoided that the. Trough rests on the substructure, and also that the elastic Mats are loaded unevenly to create a uniform mass-spring System. The structure of the base is therefore very complex.

EP 1039030 A1 discloses a ballastless superstructure, in which a driveway with prefabricated rail-bearing concrete slabs is created. The concrete slabs are covered with an underground mortar Floor attached to a concrete tub. The concrete tub in turn rests rubber-elastic profiles on the leveled surface. The rubber elastic Profiles can also be individual discrete rubber-elastic bearings. Here too there is the disadvantage that for an even load rubber-elastic bearings a precise machining of the bottom of the concrete tub or the top of the substrate is required. This is the only way ensures that the rubber-elastic bearings are evenly loaded and this creates an optimal mass-spring system.

The object of the present invention is therefore a method and a To create slab tracks with which it is possible with little Effort to evenly support a concrete component To create spring elements.

The object is achieved by a method and a device with the Characteristics of the independent claims.

In the inventive method for producing an elastic Storage of a concrete component on a surface to create a Mass-spring system puts the concrete component between a mass and a mass the concrete component and the underground spring device arranged The spring device is on the ground in the area of a Opening of the concrete component arranged. After aligning the Concrete component with holding elements is the opening of the concrete component up to Filled with a load-bearing filling material, or the Poured over spring device. Finally, the holding elements are released and the concrete component is mounted on the spring device.

The method according to the invention makes it possible for the complete concrete component comes to rest on the spring device. It is also the case when the spring device consists of several discrete devices consists. It has been proven that the concrete component on four such Spring devices is stored. But there are also more spring devices possible. The distances from one another can be the same or different, depending on the best spring or damping properties, which the System thereby receives. Through the method according to the invention, everyone carries Spring devices together and with essentially the same load Concrete component. Regardless of the height or the unevenness of the The spring devices are loaded underground. The distance is the Underside of the concrete component from the subsurface is less, that is Filling material, which is filled in the opening, made thinner, because under Circumstances the spring device protrudes into the opening itself. On the other hand, if the distance between the bottom of the concrete component and the surface is larger, the filling material becomes thicker in this case as there may be a gap between the underside of the concrete component and the top of the spring device. By the load-bearing filling material is independent of the exact surface of the Spring device and underside of the concrete component connect the Concrete component created with the spring device. This will make everyone Spring devices of the concrete component evenly loaded.

Advantageously, after storage of the concrete component on the Spring devices another layer of concrete on the concrete component applied. Due to the increased weight, the spring device deflects somewhat. at The later arrangement of the rails is advantageous because of an adjustment the rails or the support devices of the rails can be done exactly.

It is particularly advantageous if the holding elements of the concrete body Spindles are which are removed after the filler material Has achieved sustainability. The spindles can hold the concrete body support on the ground. Finally, the concrete body with the help of load-bearing filling material stored on the spring device, so is the Holding function of the spindles is no longer required. You can therefore from the Concrete bodies are removed and used for positioning and holding a other concrete body can be used.

Finally, in an advantageous embodiment, the Invention arranged and aligned a track support device. The Track support device can, for example, sleepers from a track support plate or a track grate, which consists of sleepers and rails mounted on them was made exist. The fact that the track support device on the Aligned concrete layer, the spring device is already light cushioned and thus to fix the track exactly. Through the Fastening the track support device and the tracks spring the spring devices no longer so far that a substantial change in the situation of the Tracks are created.

To fix the track support device, it is advantageous if on the A final filler concrete layer is poured. The Filling concrete layer surrounds the track support device and thus largely prevents it a change in position of the track support device and the tracks at one Crossing a rail vehicle.

It is also possible and for fastening the track support devices individual versions advantageous if in the concrete layer and / or the Filling concrete layer is first arranged a formwork body, which after is taken from the setting of the concrete layer or filling concrete layer. Then the resulting in the cavity Track support device inserted and fastened, for example cast in.

Before grouting the track support equipment on the concrete layer or the The track support equipment is aligned with the filling concrete layer. hereby it is not necessary that the contact surface between Track support devices and concrete layer or filling concrete layer match exactly. On Gap between the track support device and the concrete layer or Filling concrete layer can with an appropriate grout, for example be poured into a mortar or a plastic.

For the system to function properly, the concrete component is the Concrete layer and the filling concrete layer movable on the environment to store the spring element. It becomes a mass-spring system created which when crossing vehicles, in particular Rail vehicles appear very comfortable and noise-dampened. The complete Concrete component with the concrete layer and filling concrete layer contained on it bounces on the spring elements with a corresponding load.

To get a very effective mass-spring system, one is special large mass required. For this it is advantageous if several lined up concrete components by means of the concrete layer and / or the Filling concrete layer to be connected. This creates a mass which is possibly several hundred meters long and therefore one experiences particularly good damping.

In order to bring the spring device into the area of the opening, it is advantageous to insert this into an inspection shaft of the concrete component. It is thus possible to first use the holding device to hold the concrete component align and then the spring device under the concrete component to slide into the area of the opening. In addition, the Inspection shaft to check the spring devices as well if necessary, replace the spring devices if they are damaged.

Are used as a concrete component and / or as formwork for the concrete layer and Filled concrete layer precast concrete used, so is a special realize faster expansion of the route. The precast concrete components are only brought to the designated places, there by means of Holding devices positioned and the spring devices arranged. Is this Concrete component a plate, so appropriate formwork for the Concrete layer or the filling concrete layer arranged laterally along the plate and removed after the concrete layer or filling concrete layer has hardened. Alternatively, the concrete component consists of a trough, which through the Trough side parts simultaneously as formwork for the concrete layer and the Filling concrete layer serves. This lost formwork enables an even faster Extension of the route as when using a plate as Concrete component.

A slab track according to the invention has an elastic mounting a concrete component on a substrate to create a mass Spring system. The concrete component represents the mass and one spring device arranged between the concrete component and the substrate the spring. The concrete component are at least temporarily holding elements assigned. With the holding elements, the concrete component can over the Can be kept underground for adjustment in the desired position. In particular, this ensures that the slab track after the introduction of the Spring device as a bearing of the slab track and loosening the Holding device receives no direct contact with the subsurface and is therefore free as Mass-spring system can work.

The spring device is on the ground in the area of an opening of the Concrete component arranged. The opening is up to the spring device filled with a stable filling material. Finally, the concrete component is on the spring device mounted. Through the slab track according to the invention becomes a comfortable and vibration and noise-damped driving operation allows.

The spring device is advantageously an elastomer bearing. this is a very simple yet effective storage of the slab track. Alternatively, more complex spring devices or Bearings with dampers can be used.

A potting concrete has proven particularly useful as a filler, since it is connects excellently with the concrete component.

To enable a particularly good introduction of force runs through the Opening a reinforcement of the concrete component.

Advantageously, the holding devices are spindles which in the Concrete component arranged and vertical to the concrete component in the direction of the Can be moved underground.

It is particularly advantageous if the track support equipment is ballastless the concrete component are arranged. It becomes permanent enables smooth driving. The maintenance effort is also lower than when using a ballast bed.

If the concrete component has inspection openings, the storage can be checked regularly and, if necessary, serviced or replaced.

If several concrete components are joined together to form a band, then generates a particularly large mass, which functions as a mass Spring system influenced particularly advantageous.

If a concrete layer is arranged on the concrete component, the mass becomes increased and also facilitates the transport of the concrete component. The The concrete layer also connects a large number of concrete components together to form a long volume of great mass.

Is a filling concrete layer on the concrete component and / or the concrete layer arranged, so that in and / or in the concrete layer Track support device to be permanently attached.

The concrete component is advantageously a prefabricated panel or a Precast trough. These forms can be produced particularly advantageously as precast concrete parts.

Are the possible track support devices track support frames, track grates or Thresholds, it is possible in many ways to have a slab track create.

Further advantages of the invention are in the following Described embodiments. It shows

FIG. 1a-g, the preparation of a solid roadway with a concrete slab,

Fig. 2a-d Preparation of a solid road having a concrete trough,

Fig. 3 shows the installation of a warehouse in detail,

Fig. 4a-b another solid carriageway with a concrete trough and

Fig. 5 still another solid carriageway with a concrete trough.

Fig. 1a shows the concrete 1 , which is located in a tunnel tube, not shown, in a perspective view. The concrete 1 forms a base 2 and, thanks to the trough-shaped design, two side walls 3 . In the trough between the side walls 3 and on the subsoil 2 , a solid carriageway for rail traffic is built in the following. The solid track is supported by a mass-spring system to enable comfortable and low-noise driving.

Referring to FIG. 1b of the layer of concrete 1 is placed a concrete member 4 between the two side walls 3 to the ground. 2 The concrete component 4 has six spindles 5 , of which only three are visible in the present illustration. In addition, two inspection openings 7 are arranged in the concrete component 4 . Not far away from the inspection openings 7 are four openings 6 , in which spring elements 20 are later accommodated. In this exemplary embodiment, the concrete component 4 is designed as a concrete slab, which is a prefabricated concrete component. The concrete component 4 is thus inserted as a whole in the trough of the concrete 1 and can finally be stored on spring devices. The concrete component 4 is used for the following steps as the lower lost formwork for further concreting work. The end faces of the concrete component are made thinner than the rest of the concrete component 4 . As a result, the concrete layer concreted on top becomes thicker and therefore more stable at these points. The resulting tape is protected against breakage at these points.

The spindles 5 are in a position in which they have raised the concrete component 4 . The spindles 5 are supported on the base 2 of the concrete 1 and lift the concrete component 4 in the desired position. It must be ensured that the concrete component 4 has no contact with the substrate 2 at any point. This must also be fulfilled in a state in which the spring devices used later are maximally compressed. This is the only way to ensure that the mass is deflected optimally and that the damping properties are fully effective.

In this state, spring devices are introduced through the inspection openings 7 into the area of the openings 6 . The spring devices rest on the base 2 under the openings 6 . According to the design of the base 2, the spring devices protrude more or less deeply into the openings 6 . It may also be the case that the spring elements are deeper than the underside of the concrete component 4 when there is a large gap between the lower edge of the concrete component 4 and the base 2 and accordingly do not protrude into the opening 6 .

After the spring devices have been positioned, the opening 6 according to FIG. 1c is filled with a load-bearing filling material. The filling material can be a concrete, which connects well to the concrete component 4 . In order to create a load-bearing connection, it is advantageous if the reinforcement of the concrete component 4 runs through the openings 6 . In this way, a particularly high load-bearing capacity of the filling material 8 is achieved. The filler 8 connects the spring device to the concrete component 4 , since the filler 8 extends to the top of the spring device. By removing the spindles 5 from the concrete component 4 , the spring devices are loaded after the filling material 8 has hardened. In this state, the concrete component 4 lies completely on the spring devices via the filling material 8 , without having direct contact with the substrate 2 .

In Fig. 1d the preparation for the further concreting of the solid carriageway was made. For this purpose, two side molds 9 were arranged between the concrete component 4 and the side walls 3 . This side formwork 9 prevents a connection between the resilient mass and the rigid environment from being generated when concreting onto the concrete component 4 . In addition to the side formwork 9 , an inspection formwork 10 is provided, which enables later access to the spring devices.

In Fig. 1e, a concrete layer 11 was concreted onto the concrete component 4 . The concrete layer 11 is deeper than the side formwork 9 and the inspection formwork 10 . Continuous reinforcements 12 are provided in the concrete layer 11 . These continuous reinforcements run over a large number of concrete components 4 and thus connect concrete components 4 arranged one behind the other to form a single band of large mass, which is supported without constraint on a large number of spring devices. This creates a continuous belt, which can be a hundred meters and longer. This very large mass creates an optimal mass-spring system, which provides excellent damping. Due to the great weight of the concrete layer 11 , the spring devices, which form the bearing for the concrete belt, sink to a certain extent.

In Fig. 1f, a track support frame 13 is placed on the concrete layer 11 . The track support frame 13 in turn has positioning devices, not shown. These positioning devices can either be spindles which are supported on the hardened concrete layer 11 or frames which rest on the top of the concrete 1 and on which the track supporting frame 13 is suspended in a precise position.

As soon as the track support frame 13 is correctly positioned, a filler concrete layer 14 is applied according to FIG. 1g, which envelops and permanently fixes the track support frame 13 . The filling concrete layer 14 is also filled to a maximum of a height of the side formwork 9 . The inclinations required for the rail guidance can already be realized here. After the filling concrete 14 has set, the side formwork 9 and the inspection formwork 10 can be removed. As a result, a fixed carriageway for rail vehicles, which is mounted on spring devices and can move freely, has arisen within the trough of the concrete 1 . When the solid roadway is loaded, the spring devices are more or less pressed in. The solid roadway moves relative to the concrete 1 in particular in the vertical direction.

FIGS. 2a to 2d show an alternative embodiment of the invention. Instead of a plate-shaped concrete component 4 , a trough-shaped concrete component 4 is used here. The concrete component 4 has integrated side parts 15 , which serve as lost side formwork in the further concreting of the solid carriageway. The concrete component 4 is aligned together with the side parts 15 via the spindles 5 as in FIG. 1 in such a way that there is no contact with the base 2 and spring devices in the resulting gap between the base 2 and the underside of the concrete component 4 in the region of the openings 6 fit. If necessary, the spindles can first hold the concrete component 4 higher before positioning the spring devices, so that the spring devices can be pushed under the concrete component 4 . Subsequently, the concrete component 4 is screwed deeper so that the spring devices reach approximately the lower side of the concrete component or protrude slightly into the opening 6 .

In Fig. 2b, the concrete member 4 is prepared for further concreting. The spring devices are brought under the openings 6 , the openings 6 are filled with filling material 8 and the spindles 5 are removed, so that the concrete component 4 lies on the spring devices. The inspection formwork 10 is also attached to the concrete component 4 . In addition, a large number of concrete components 4 are arranged one behind the other in a manner not shown in order to be able to create a continuous band later.

The side walls 3 of the concrete 1 are further apart than the width of the concrete component 4 . This ensures that the concrete component 4 together with the other concrete layers and the track can deflect relative to the concrete 1 when the solid carriageway is later loaded.

In Fig. 2c, the concrete layer 11 is filled in the trough of the concrete component 4 . The concrete layer 11 largely fills the trough of the concrete component 4 . Only the area in which the track support frame 13 is later used is kept free. This is done, for example, by a formwork body, not shown, which is inserted in the concrete layer 11 and removed again after the concrete layer 11 has set.

Finally, according to FIG. 2d, the track support frame 13 is inserted into the recesses in the concrete layer 11 . For exact fixing of the track supporting frame 13 , this can optionally be aligned precisely with spindles or holding devices and is then permanently fixed with the filler concrete layer 14 . This method has the advantage that the filler concrete layer 14 introduced after the adjustment of the track support frame 13 has a lower mass and thus causes less further deflection of the spring devices. A change in the adjustment of the track support frame 13 before pouring with the filling concrete layer 14 is changed less.

Fig. 3 shows a detailed view of the spring means 20. The spring device 20 , which is an elastomer bearing, for example, is located in the region of the opening 6 of the concrete component 4 . By rotating the spindles 5 , the concrete component 4 is lifted from the base 2 until the spring device 20 fits under the concrete component 4 . The spring device 20 is then positioned in the region of the opening 6 through the inspection opening 7 or, if appropriate, also through the opening 6 . A sealing compound 21 is then placed between the opening 6 and the spring device 20 in order to seal the opening 6 downwards. After this has taken place, the cavity, which has now arisen from the previous opening 6 , is filled with filler material 8 . The filling material 8 is advantageously a grouting concrete, which combines well with the material of the concrete component 4 and thus enables force to be introduced into the concrete component or into the spring device 20 . In order to obtain a particularly good introduction of force, it can be advantageous that 6 reinforcement bars run through the opening. In this way, a positive and non-positive connection of the filling material 8 with the concrete component 4 is obtained. Instead of the elastomer bearing as spring device 20 , other spring devices can of course also be used. In order to prevent the spring device 20 from having direct contact with the concrete component 4 and the spring device depending on the substrate 2 can protrude more or less far into the opening 6 , it is particularly advantageous if the cross section of the spring device 20 is less than the cross section of the opening 6 is.

FIG. 4a shows an alternative mounting possibility of the track support frame 13. For this purpose, the track support frame 13 is attached to support 23 . The beams 23 in turn are supported on the side parts 15 of the concrete component 4 via a spindle 24 . The track support frame 13 can be brought into the desired position via the spindle 24 and fixed there. Subsequently, the concrete layer 11 is introduced between the concrete component 4 and the track support frame 13 ( FIG. 4b). The track support frame is permanently fixed by the concrete layer 11 . The beams 23 can then be removed from the track support frame 13 . A filler concrete layer 14 is not necessary in this embodiment, since the track support frame 13 is cast directly into the concrete layer 11 . With this method, the deflection of the spring device by filling in the concrete layer 11 must be taken into account when aligning the track support frame.

In FIG. 5 another embodiment of the invention is shown. The concrete component 4 is designed as a trough, which is filled with the concrete layer 11 . The concrete layer 11 forms a long band, which runs over a large number of concrete components 4 . The track is finally directly on the hardened surface of the concrete layer 11 or with the interposition of track fastening devices, for. B. track supporting frame, track gratings, sleepers or humps attached.

The attachment can e.g. B. by pouring or dowel done.

The present invention is not limited to the exemplary embodiments shown. In particular, other shapes of the concrete component 4 and the track fastenings, which have been shown here as track support frame 13 , are also possible. The use of the invention is particularly suitable for tunnels. However, it is not limited to this. A concrete, as shown in the exemplary embodiments, is therefore not always necessary.

Claims (25)

1. A method for producing an elastic mounting of a concrete component ( 4 ) on a substrate to produce a mass-spring system, the concrete component ( 4 ) being the mass and a spring device ( 4 ) arranged between the concrete component ( 4 ) and the substrate ( 2 ). 20 ) represents the spring, characterized in that the spring device ( 20 ) is arranged on the substrate in the region of an opening ( 6 ) of the concrete component ( 4 ) and after aligning the concrete component ( 4 ) with holding elements, the opening ( 6 ) up to Spring device ( 20 ) is filled with a load-bearing filling material ( 8 ) and finally the holding elements are released and the concrete component ( 4 ) is mounted on the spring device ( 20 ). 2. The method according to claim 1, characterized in that the concrete component ( 4 ) is carried by four spring devices ( 20 ). 3. The method according to any one of the preceding claims, characterized in that the holding elements of the concrete component ( 4 ) are spindles ( 5 ) which are removed after the filling material ( 8 ) has reached its load-bearing capacity. 4. The method according to any one of the preceding claims, characterized in that after the storage of the concrete component ( 4 ) a further layer of concrete ( 11 ) is applied to the concrete component ( 4 ). 5. The method according to any one of the preceding claims, characterized in that a track support device, in particular a track support frame ( 13 ) is arranged and aligned on the concrete layer ( 11 ). 6. The method according to any one of the preceding claims, characterized in that a final filler concrete layer ( 14 ) is poured onto the concrete layer ( 11 ), which surrounds the track support device. 7. The method according to any one of the preceding claims, characterized in that in the concrete layer ( 11 ) and / or the filling concrete layer ( 14 ) a formwork body is arranged for the subsequent installation of track support devices, such as sleepers, track gratings or track support frame ( 13 ). 8. The method according to any one of the preceding claims, characterized in that the track support devices are aligned before casting on the concrete layer ( 11 ) or the filling concrete layer ( 14 ). 9. The method according to any one of the preceding claims, characterized in that the concrete component ( 4 ), the concrete layer ( 11 ) and the filling concrete layer ( 14 ) relative to the environment on the spring device ( 20 ) are mounted. 10. The method according to any one of the preceding claims, characterized in that several strung concrete components ( 4 ) by means of the concrete layer ( 11 ) and / or the filler concrete layer ( 14 ) are connected together. 11. The method according to any one of the preceding claims, characterized in that the spring device ( 20 ) through an inspection shaft ( 7 ) of the concrete component ( 4 ) in the region of the opening ( 6 ) of the concrete component ( 4 ) is inserted. 12. The method according to any one of the preceding claims, characterized in that prefabricated concrete components are used as the concrete component ( 4 ) and / or as formwork for the concrete layer ( 11 ) and the filling concrete layer ( 14 ). 13. Solid carriageway with an elastic mounting of a concrete component ( 4 ) on a substrate to produce a mass-spring system, the concrete component ( 4 ) being the mass and a spring device arranged between the concrete component ( 4 ) and the substrate ( 2 ) 20 ) represents the spring, characterized in that at least temporarily holding elements are assigned to the concrete component ( 4 ), the spring device ( 20 ) is arranged on the substrate in the region of an opening ( 6 ) of the concrete component ( 4 ), the opening ( 6 ) to to the spring device ( 20 ) is filled with a load-bearing filling material ( 8 ) and finally the concrete component ( 4 ) is mounted on the spring device ( 20 ). 14. Solid track according to the previous claim, characterized in that the spring device ( 20 ) is an elastomer bearing. 15. Solid track according to one of the preceding claims, characterized in that the filling material ( 8 ) is a grouting concrete. 16. Fixed carriageway according to one of the preceding claims, characterized in that reinforcement ( 12 ) extends through the opening ( 6 ). 17. Fixed carriageway according to one of the preceding claims, characterized in that the holding device are spindles ( 5 ). 18. Fixed carriageway according to one of the preceding claims, characterized in that track support devices are arranged ballastless on the concrete component ( 4 ). 19. Solid track according to one of the preceding claims, characterized in that the concrete component ( 4 ) has inspection openings ( 7 ). 20. Slab track according to one of the preceding claims, characterized in that several concrete components ( 4 ) are connected to one another to form a band. 21. Fixed carriageway according to one of the preceding claims, characterized in that a concrete layer ( 11 ) is arranged on the concrete component ( 4 ). 22. Solid track according to one of the preceding claims, characterized in that on the concrete component ( 4 ) and / or the concrete layer ( 11 ) a filling concrete layer ( 14 ) is arranged. 23. Slab track according to one of the preceding claims, characterized in that the track support device in the concrete layer ( 11 ) and / or the filling concrete layer ( 14 ) is fixed. 24. Fixed carriageway according to one of the preceding claims, characterized in that the concrete component ( 4 ) is a precast slab or a precast trough. 25. Fixed carriageway according to one of the preceding claims, characterized in that the track support device is a track support frame ( 13 ), a track grate or sleepers.