ES2316873T3 - PROCEDURE FOR THE CONSTRUCTION OF A CORRESPONDING FIXED AND FOOTWEAR ROAD. - Google Patents

Abstract

The invention relates to a method for constructing a rigid track for high-speed rail traffic. According to said method, the inventive rigid track is either constructed from precast concrete components (7) arranged on a track bed structure (2,4;16), an intermediate region between the concrete components (7) and the track bed structure (2,4;16) being filled in with a solidifying filling material (8) in order to fix the position of the concrete components (7), or from cast-in-situ concrete or a combination of concrete components (7) and cast-in-situ concrete on the track bed structure (2,4;16). The inventive method is characterised in that the track bed structure (2,4;16) is created from an existing ballast bed (2), the ballast being at least partially compacted. The invention also relates to a corresponding communication track of a rigid track.

Description

Procedure for the construction of a road fixed and corresponding roadway.

The present invention relates to a procedure for the construction of a fixed road for traffic High-speed rail from finished parts of precast concrete, which is deposited on a support layer and it is poured into an intermediate space between the finished pieces of concrete and support layer, for fixing the position of the finished concrete pieces, a filling mass that consolidates or is constructed from concrete prepared on site or a combination of finished concrete and concrete parts prepared in place on the support layer, as well as a corresponding track platform of a fixed track. The layer of support is built in this case from a bed of ballast existing.

Road construction for traffic High-speed rail is usually done or over a ballast superstructure or with a fixed track, which is constructed, for example, from a plurality of pieces finished concrete. In the ballast superstructure is a inconvenient the high maintenance intensity while in the fixed track must have more construction time prolonged and with higher costs. If a tour is built high speed, then this one is either built on a new route or replaces a conventional rail route. In the latter case the ballast bed is completely disassembled existing and a set support layer is constructed hydraulically, on which they tend or else the finished concrete pieces or a layer of concrete prepared in the place or a combination of both. This dismantling of the route old and the construction of the new route essentially causes Long construction time and high costs.

UD 3,656,690 describes a roadway for a high-speed train, in which a bed of existing ballast, to build the road. The rails and old sleepers are removed in this case and the existing ballast bed. The ballast is cleaned and constructed of Again finally in the form of a gutter. The flanks of the gutter are consolidate and clean the intermediate space between the flanks. Above, concrete slabs are built for the new road. Due to the disassembly of the old ballast bed, the time of Construction is also correspondingly long here.

The purpose of the present invention is to create a procedure for the construction of a fixed track and a road corresponding, which avoids the aforementioned inconveniences above and enable in a particularly fast and with relatively low costs high rail traffic speed.

The task is solved by means of a procedure and a roadway with the characteristics of the independent claims.

In the process according to the invention for the construction of a fixed track for rail traffic high speed are deposited, for example, finished parts of precast concrete on a support layer and poured into a intermediate space between the finished parts and the support layer, for fixing the position of the finished parts, a mass of filler that consolidates. In an alternative way or in Combination with finished concrete pieces, it can be built the fixed track also with concrete prepared on site, which pour over the support layer. The support layer is constructed of an existing ballast bed. The ballast used for the old track route to be dismantled is therefore used for the construction of a support layer for the new fixed track. According to the invention, the ballast is consolidated, introducing a binder between the sleepers of a still old road in the bed of ballast and removing, after setting the binder, the track, the sleepers and the excessive ballast.

If the binder is introduced between sleepers of a still old track in the bed of ballast, then a very special advantage can be seen here.

High speed travel can be prepared in this way, while traffic is still done railway on the old track. They are only filled with binder the accessible free areas of the ballast bed and of this way the base for the later construction of the track is created for high speed rail traffic. The time of inactivity between rail traffic on old roads and rail traffic on new roads can be maintained from This way too short. If the tracks, the sleepers and the excessive ballast after setting the binder, then it creates the basis for the construction of partial plates finished of concrete on the support layer. Also this measure contributes to the fact that the time of inactivity.

While the conventional ballast bed does not it was appropriate to meet the high requirements for high-speed rail traffic, now through the elaboration of the existing ballast bed is possible to improve essentially the properties and use the old infrastructure for the new support layer. This way you get the advantage of transforming a track installation conventional in a railway installation for rail traffic high speed can be performed in a relatively way Fast and with favorable costs.

Through the consolidation of the ballast to from the existing ballast bed with a binder hydraulic, especially cement mortar or binder bituminous or plastic based, it becomes the support layer generated in this way of high support capacity and especially also very resistant due to vibrations and loads, which produced during the operation of high rail traffic speed. In this way, a durable and reliable substrate is created for laying finished concrete parts, which are used most of the time as irons, or the concrete layer prepared in place.

If the pressure binder is introduced into the ballast bed cavities, then an area of ballast bed support that crosses, in certain circumstances, the complete ballast bed. The cavities, which are present between individual ballast stones, it used to apply the binder. You get a union between the binder and the ballast, which creates a layer of very reliable support. Through the use of pressure during introduction of the binder penetration is possible especially deep binder through the bed of ballast, which creates a very large support capacity.

For the introduction of the binder in the bed of ballast are advantageous injection lances, which are introduced with agitation in the ballast bed and through which can bind the binder into the cavities of the bed of ballast. Binder penetration through the bed ballast can be done in this way very uniformly and selective

If the binder is introduced in at least one direction at a distance from each other, so that they are obtained in the ballast bed hydraulically forged and intermediate zones do not fill, then you can get the support capacity required individual support layer. With a capacity of reduced support, intermediate unfilled areas are larger than with a higher support capacity required from the layer of support.

To prevent the dough from pouring between the support layer and the finished concrete piece filter in the area not filled with the ballast bed, is provided in a way more advantageous that at least the unfilled areas are closed tightly on the surface. To that end, it applies, for example, a layer of relatively fine cement mortar over the areas do not fill in and, if necessary, additionally on the areas set. The filling dough will penetrate in this way with obstacles in the ballast bed cavities and therefore will not support to a sufficient extent the partial plate finished concrete.

Additionally or alternatively to the introduction to binder pressure in the ballast bed cavities, belongs to the invention and it is advantageous that the surface of the ballast bed and the resulting milled material in this case be mixed with the binder. Then you apply the mixture on the surface of the remaining ballast bed as a support layer. After setting this mixture, it build the finished concrete partial plate or the layer of prepared concrete in place on the new surface resulting. Through this procedure for setting the ballast with the binder for the formation of a support layer a support layer is created very quickly. In this case, however, as opposed to the realization especially advantageous of the introduction of the binder under pressure between the cross ties of the old road, it is necessary that the old road has been disassembled before the upper layer of the bed is milled of ballast and be built new.

The mixture of the binder with the material resulting milling can be done by applying the binders before milling on the surface of the ballast bed. Through of milling the binder and bed ballast is carried out automatically a mixture of binder and ballast. This mixture can be applied again to continuation on the remaining ballast bed and you can toughen.

Alternatively, for many cases of application is advantageous that the binder is mixed after milled with the milled material. The milled material is brought to such end, for example, to a mixing chamber, in which the binder and material with each other and then applied of new over the remaining ballast layer. After setting a fixed support dandruff has also been created here and With support capacity.

Another alternative to building a layer of support using the old ballast bed and the binder is that the binder is deposited on the bed of ballast by way of a clamp, penetrating the binder into the surface of the ballast bed and closing laterally. This In this way, the ballast bed is prevented from breaking on the side. The binder, which partially penetrates the bed of ballast, is occupies in this way a jagged clamp with the bed of ballast and therefore provides a stable support layer for high-speed rail traffic without interference. The hydraulic binder is set with the ballast of the bed of existing ballast and thus forms the support layer, on which you can build the finished concrete pieces or the layer of concrete prepared on site.

If a drain is introduced into the support layer  and / or a drain remains in the existing remaining ballast, then the advantages are combined in an advantageous way of a stable support layer with the drain capacity of a roadbed.

On a roadway according to the invention of a fixed track for a railway vehicle of railway traffic High speed built from finished concrete parts prefabricated, finished concrete pieces are placed on a support layer A filling dough is poured that consolidates into an intermediate space between the finished concrete pieces and the support layer Instead of the finished concrete pieces you can also serve a layer of concrete prepared on site or concrete prepared on site in combination with finished parts for construction of a fixed track.

The support layer is constructed from an existing ballast bed. According to the invention, the ballast is consolidated at least in part on the ballast bed, a binder being introduced between the sleepers of a track still old in the bed of ballast. In this way it is possible already roadway infrastructure preparation for the new track installation when rail traffic still circulates about the installation of old road. Only when the binder, which is tied in the form of columns in the bed of ballast, has set and have finished the usual work of preparation, you can quickly build a road. The support layer formed in this way can be build in a very fast way and with favorable cost and presents a high support capacity, as is necessary for the High speed train operation. Through the Use of the existing ballast bed clearly reduces the material as well as the time for the preparation of the road infrastructure.

If the ballast is combined with a binder that It is forged hydraulically or bituminous or plastic based, then a particularly solid support layer is obtained and with support capacity

It is especially advantageous that the binder be introduced under pressure into the cavities of the ballast bed. From this way a deep penetration of the binder is possible Through the ballast. In this way, you get a high resistance of the support layer. The binder fed to pressure to the support bed fills, on the one hand, the cavities of the ballast bed and compresses, if necessary, the loose ballast additionally for consolidation with the binder.

If the binder is not introduced over all the ballast bed, but has a distance of at least one direction, then zones are arranged in the ballast bed hydraulically set and intermediate areas not filled. The construction of a support layer of this type is possible This way especially quickly. Especially when the binder is introduced under pressure in the cavities, it is achieved usually sufficient strength and support capacity of the support layer, even if intermediate areas remain stuffed

To prevent the filling mass between the layer of support and the finished piece of concrete seeps into the areas not you fill in the support layer and therefore cannot fill completely the cavity between the support layer and the piece finished concrete. It is provided in a more advantageous way than unfilled areas are tightly closed in the surface with a sealing agent. A shutter agent of this type can be, for example, a cement mortar, which applies to unfilled areas and, if necessary, also to the filled areas and in this way creates a tight surface uniform for the filling dough.

If the surface of the ballast bed is milled additionally or alternatively to the pressure introduction of the binder in the ballast bed and the milled material is mixed with the binder, then a composite material is obtained, which form the support layer. This composite material is applied on the  surface of the remaining ballast bed and is suitable for build the finished concrete pieces or the concrete layer prepared in place on this surface that is obtained new from this way.

If the binder is liquid and is applied as a clamp on the bed of ballast, then you get a especially good ballast retention from the bed of ballast. In some application cases, this may be sufficient type of construction for the support layer from a bed of existing ballast and a binder. In this case it is especially advantageous that the binder penetrates approximately 5 to 20 cm on the surface and on the sides of the ballast bed for provide an anchor of the binder with the ballast layer. From this way you get a particularly firm joint retention and a high bearing capacity of the old ballast bed with the additionally arranged binder. In this way it is possible the operation of high-speed trains on the bed of Ancient ballast crafted this way.

The present invention presents, in addition to the mentioned advantages, also the advantage that especially in the case of the provision of unfilled areas and filled areas of the A ballast bed can be drained through the zones Do not fill. This is especially advantageous especially during the extension master, during which the operation of Conventional circulation

Other advantages of the present invention are described in the following embodiments. In this case:

Figure 1 shows a top plan view on a ballast superstructure with a track
Conventional and binder introduced.

Figure 2 shows a cross section to through the ballast superstructure of figure 1.

Figure 3 shows a superstructure of ballast prepared for laying a fixed track.

Figure 4 shows a cross section to through a support layer according to the invention and a partial plate finished.

Figure 5 shows the milling of a layer of ballast.

Figure 6 shows a cross section to through a bed of ballast with milled binder, and

Figure 7 shows a cross section of a bed of ballast with surrounding binder.

The following examples explain the invention with the help of a fixed track with finished concrete pieces. But the invention is not limited thereto, but can be used also when the fixed track is constructed of concrete prepared in the place or in combination with concrete prepared on site and parts finished concrete.

Figure 1 shows a top plan view on a substrate 1 and a rail of lanes 3 built on a bed of ballast 2. The bed of ballast 2 is prepared for transformation for a support layer of a fixed track. To that end, a plurality of columns are made in the ballast bed 2  4, which are constituted of ballast and binder. Columns 4 they are arranged between sleepers 5 and therefore can be enter the bed of ballast 2, without adjusting it Lasting way the circulation operation. After what columns 4 have been introduced, for example, under pressure and with injection lances on the bed of ballast 2, you can resume the circulation operation Through this interruption only of short duration a construction especially of more favorable cost or a favorable cost preparation of the construction of a fixed track.

Columns 4 are arranged in series, which they are in each case between two sleepers 5. The bed of ballast 2 not filled is in this case still enough to Provide a drain. Among the columns 4 is also the ballast bed 2 not filled.

Figure 2 shows a cross section to through a bed of ballast 2 according to figure 1. It clearly deduces that columns 4 are arranged on the substrate 1 and are distanced from the surface of the ballast bed 2. In addition, they have distances from each other, which correspond essentially to the width of the sleepers 5. Of this way, it is possible that columns 4 can be entered from the upper side of the ballast bed 2 between the sleepers 5 in the ballast bed 2. Columns 4 are formed in this case with binder and ballast from bed of ballast 2. The sides upper columns 4 are approximately in one level, of so that they later serve as a uniform support layer for a partial plate finished with concrete.

Figure 3 shows a representation in perspective of a support layer, which has been prepared from according to the representations of figures 1 and 2. The grill of old tracks 3 with sleepers 5 and lanes 6 has been disassembled in the intermediate time. The remaining ballast of the bed of Ballast 2 has been removed, so that the surfaces of the columns 4 are essentially in a plane. Columns 4 they form the supports for a fixed track arranged above in a later instant. The remaining ballast, which had been arranged on the surface of columns 4 in the ballast bed 2 old, has been removed on both sides and can be used later, for example, for the filling of the slope.

Figure 4 shows a cross section to through the structure according to the invention of one way fixed. On the substrate 1 the ballast bed 2 and columns 4, which are constructed from the ballast of bed of ballast 2 and a binder consolidated with it. The track 6 is fixed on a finished piece of concrete 7, which is made in the form of an iron. The finished concrete piece 7 is rests on spindles known and not represented on the layer of support, which is made up of ballast bed 2 and the columns 4. Through the leveling of the finished piece of concrete 7 according to the required development of the path of track 6 you get a hollow space between the finished piece of concrete 7 and the support layer formed by the concrete bed 2 and columns 4. This hollow space is filled with a mass of padding 8 to ensure the position of the finished concrete piece and avoid pushups.

To prevent filler dough 8 from leaking in the unconsolidated ballast bed 2, before placing the finished concrete piece 7 on the support layer is provided the surface of the support layer with a sealing agent 9. The sealing agent 9, which may be, for example, a mortar of cement, makes the filling mass 8 cannot penetrate the cavities of the ballast bed 2 and cannot completely fill the hollow space between the finished concrete piece and the layer of support.

In order to provide a part drain finished of concrete 7, tubes 10 are provided, which lead the water through the finished concrete piece 7, the filling mass 8 and the sealing agent 9. In the area not filled with the bed of ballast 2 you can filter the water below or you can drive laterally out of the ballast bed 2.

Figure 5 shows the milling of a binder 15, for example mortar or concrete, in ballast bed 2. Envelope the ballast bed 2 is applied the binder layer 15, which it is milled together with a part of the ballast bed 2 by means of a strawberry. The milled material of the ballast bed 2 and the binder 15 is mixed and then applied as a layer of support 16 on the remaining part of the ballast bed. After from the setting of the binder 15 in the support layer 16 a layer with high support capacity for the construction of a track Fixed for high-speed rail traffic. Instead of apply binder 15 before milling on the bed of ballast 2, it can also be advantageous to erode only the bed of ballast 2 with a strawberry 17 and mix it in an installation of mixture not represented with binder 15. Next, apply the support layer 16, as already explained, on the remaining bed of ballast 2.

Figure 6 shows a cross section to through a support layer 16 according to figure 5, on which a finished piece of concrete 7 is arranged. For the filling of the hollow space between the finished concrete piece 7 and the layer of support 16 is again arranged a filling mass 8, which fixes the position of the finished concrete piece 7.

Figure 7 shows another embodiment of the invention in a cross section through the road. He ballast bed 2 is surrounded in this case with a layer of binder 15. Binder 15 surrounds the bed of ballast 2 both on its upper side as well as on its flanks. This way it get a ballast bed clamp-shaped enclosure 2 with the binder layer 15. The bearing capacity and the ballast bed retention 2 rise in this way and it get a very good support capacity of the support layer, which does not change in position either in the case of vibrations, for example when a high-speed train runs over it. He maintenance expense of such a roadway remains of This way especially reduced. The binder 15 can be introduced in this case easily into the bed cavities of Ballast 2, this is especially the case when in the binder 15 it is a fluid mortar, which can be easily filtered in the bed of ballast 2, before it set. Over the surface from the binder 15 the finished concrete part is refilled with track 6 and a filling mass 8 arranged between the piece Finished concrete 7 and binder 15.

The present invention is not limited to Examples of embodiment represented. In particular, they are possible combinations of individual ballast bed preparations 2. Thus, for example, the ballast bed 2 can be introduced columns 4 and a support layer 16 can be applied additionally through milling on columns 4. In addition, it can be performed a surrounding fastener according to figure 7 in combination with the milling of figures 5 and 6 and / or the construction of columns 4. The binder does not have to be able to set hydraulically. You can also use plastic-based binders or tar. In the case of using concrete prepared in the place for the construction of the road, it is not necessary usually arranging a filling mass 8 on the layer of support 16, in addition the application of the sealing of the Ballast remaining before the application of the concrete prepared in the place.

Claims (19)

1. Procedure for the construction of a fixed track for high-speed rail traffic from finished precast concrete parts (7), which are deposited on a support layer (2, 4; 16) and poured into a space intermediate between the finished concrete pieces (7) and the support layer (2, 4; 16), for fixing the position of the finished concrete pieces (7), a filling mass (8) that consolidates or it is constructed from concrete prepared in place or a combination of finished pieces of concrete (7) and concrete prepared in place on the support layer (2, 4; 16), in which the support layer (2, 4; 16) is constructed from an existing ballast bed (2), in which the ballast is at least partially consolidated, characterized in that a binder (15) is introduced between the sleepers (5) of a track (6) ) still old in the bed of ballast (2) and after the setting of the binder (15) the track (6) is removed, the sleepers (5) and excessive ballast. 2. Method according to the preceding claim, characterized in that the ballast is combined for consolidation with a binder (15) that is hydraulically set or bituminous binder or plastic-based binder. Method according to one of the preceding claims, characterized in that the binder (15) is introduced under pressure into the cavities of the ballast bed (2). 4. Method according to one of the preceding claims, characterized in that injection lances (2) are introduced into the ballast bed, especially with stirring, through which the binder (15) is introduced under pressure into the ballast bed cavities (2). Method according to one of the preceding claims, characterized in that the binder (15) is introduced in at least one direction at a distance from each other, so that hydraulically set zones and zones are obtained in the ballast bed (2). intermediate not filled. Method according to one of the preceding claims, characterized in that the unfilled areas are sealed in the surface. Method according to one of the preceding claims, characterized in that the surface of the ballast bed (2) is milled, the milled material obtained in this case is mixed with the binder (15) and applied on the surface of the ballast bed (2) remaining as a support layer (16), and because after the setting of this mixture, the fixed track is built on the resulting new surface. Method according to one of the preceding claims, characterized in that the binder (15) is applied before milling on the surface of the ballast bed (2). Method according to one of the preceding claims, characterized in that the binder (15) is mixed, after milling, with the milled material. Method according to one of the preceding claims, characterized in that the binder (15) or because the support layer (16) is placed on the ballast bed (2) as a clamp, in which the binder (15) penetrates the surface of the ballast bed (2) and closes laterally. Method according to one of the preceding claims, characterized in that a drain is incorporated in the support layer and / or is maintained in the existing remaining ballast. 12. Fixed-track roadway for a high-speed rail traffic rail vehicle from finished concrete parts (7) prefabricated, which are deposited on a support layer (2, 4; 16) and into which it is poured in an intermediate space between the finished concrete pieces (7) and the support layer (2, 4; 16), for fixing the position of the finished concrete pieces (7), a filling mass (8) that it is consolidated or constructed from concrete prepared in place or a combination of finished pieces of concrete (7) and concrete prepared in place on the support layer (2, 4; 16), in which the support layer (2, 4; 16) is constructed from an existing ballast bed (2), in which the ballast is at least partially consolidated, characterized in that a binder (15) is introduced between the sleepers (5) of a track (6) still old in the ballast bed (2), in which the binder (15) and the ballast are introduced into form of columns (4), which form the support layer (2, 4; 16), in the ballast bed (2). 13. Roadway according to the preceding claim, characterized in that the ballast is consolidated with a binder (15) that is hydraulically set or bituminous binder or plastic based binder. 14. Roadway according to one of the preceding claims, characterized in that the binder (15) is pressurized into the cavities of the ballast bed (2). 15. Roadway according to one of the preceding claims, characterized in that the binder (15) is inserted at least one direction at a distance from each other, such that hydraulically set zones and zones are arranged in the ballast bed (2). intermediate not filled. 16. Roadway according to one of the preceding claims, characterized in that the unfilled areas are hermetically sealed on the surface with a sealing agent (9). 17. Roadway according to one of the preceding claims, characterized in that the surface of the ballast bed (2) is milled, because the milled material is mixed with the binder (15) and applied on the surface of the ballast bed (2 ) remaining, and because the fixed track is built on the resulting new surface. 18. Roadway according to one of the preceding claims, characterized in that the binder (15) is liquid and is placed together with ballast as a support layer (16) as a clamp on the ballast bed (2) and penetrates approximately 5 to 20 cm on the surface and sides of the ballast bed (2). 19. Roadway according to one of the preceding claims, characterized in that a drain is incorporated in the support layer (2, 4; 16) and / or is maintained in the existing remaining ballast bed (2).