EA004007B1 - Method and device for correcting the position of a slab construction consisting of precast concrete slabs - Google Patents

Abstract

1. A method for the positional correction of a slab construction of precast concrete slabs (1), especially for an existing carriageway for high speed vehicles, wherein the precast concrete slabs (1) possess spindles (7) and said slab construction is carried by an underconstruction of a hard curing undergrout (4) and a carrier layer (5) of an under base, therein characterized, in that, for the said positional correction of least one precast concrete slab (1), the said precast concrete slab (1) is at least partially separated from the understructure, in particular from the undergrout (4) and/or from the carrier layer (5) and in that during the separation the spindles (7) are removed from the site of the separating cut and in that after the separation, the spindles (7) are returned to support location and the precast concrete slab (1) is finely aligned by said spindles (7) and in that the precast concrete slab (1) is provided with a renewed pour of an undergrout (4). 2. A method according to Claim 1, characterized in that, the under support, particularly the undergrout (4), is at least partially separated. 3. A method according to one of the foregoing Claims, characterized in that the understructure, particularly the undergrout (4), is separated in the longitudinal and/or in the horizontal direction from the precast concrete slab (1). 4. A method according to one of the foregoing Claims, characterized in that undergrout (4) is essentially separated at or in proximity to the contacting surface of the precast concrete slab (1) and/or the carrying layer (5). 5. A method according to one of the foregoing Claims, characterized in that the understructure, in particular the undergrout (4), is separated over the complete breadth of the precast concrete slab (1). 6. A method according to one of the foregoing Claims characterized in that before the separation of the understructure, in particular, the undergrout (4), an opening is made in the understructure, in particular the undergrout (4) for the insertion of a separating means, in particular a saw blade. 7. A method according to one of the foregoing Claims characterized in that the separation line exhibits a length, which is unequal to the length of a precast concrete slab (1), and especially is not on the contact location where two precast concrete slabs (1) abut. 8. A method according to one of the foregoing Claims characterized in that on the precast concrete slab (1), filling openings (9) are opened or created and employed for the renewed underpouring. 9. A method according to one of the foregoing Claims characterized in that closed filling openings of the old undergrout (4), are opened and made use of for renewed under pouring. 10. A method according to one of the foregoing Claims characterized in that the precast concrete slab (1) is exactly aligned by especially mechanical or hydraulic lifting means, such as spindles or lifting cushions, these means being placed inside and/or outside the precast concrete slab (1). 11. A method according to one of the foregoing Claims characterized in that the precast concrete slab (1) is undergrouted with an especially rapid-cure bitumen cement mortar, a plastic, or a cement mortar. 12. A method according to one of the foregoing Claims characterized in that the understructure, especially the undergrout (4) is separated by a saw, in particular a cable saw (20), a chain saw, or blade saw. 13. A method according to one of the foregoing Claims characterized in that the understructure, especially the undergrout (4) is separated by an oxygen lance. 14. A method according to one of the foregoing Claims characterized in that the understructure, especially the undergrout (4) is separated by a high pressure water stream. 15. A method according to one of the foregoing Claims characterized in that the cut opening in the understructure is cleaned before the renewed pour of grout. 16. A method according to one of the foregoing Claims characterized in that for the more rapid binding of the undergrout (4), the pour location is heated. 17. A method according to one of the foregoing Claims characterized in that a complete precast concrete slab (1) can be removed from the slab construction and replaced by an exchange slab. 18. A device with a separation apparatus for the release of at least one part of a precast concrete slab (1) of an existing carriageway for rail guided, high speed, vehicles from its understructure, especially in the case of a positional correction according to one of the foregoing Claims 1-17 characterized in that the separating apparatus (20, 21) is placed on the precast concrete slab (1) which is to be loosened or on an adjacent following precast concrete slab (1). 19. A device with a separating apparatus for the loosening from its understructure of at least a part of a precast concrete slab (1) of an existing carriageway for rail guided high speed vehicles, especially in the case of a positional correction according to one of the foregoing Claims 1-17 characterized in that the separation device (20, 21) is placed on a guide structure independent of the precast concrete slab (1) to be loosened, in particular on an adjoining track. 20. A device according to Claims 18 or 19 characterized in that the separating device (20, 21) cuts through the understructure, especially the undergrout layer placed beneath the precast concrete slab (1). 21. A device according to one of Claims 18-20 characterized in that the precast concrete slabs (1) are bound together. 22. A device according to one of Claims 18-21 characterized in that characterized in that the separating apparatus (20) is placed on the rails (2) of a first or second precast concrete slab (1). 23. A device according to one of Claims 18-22 characterized in that characterized in that the separating apparatus (20) is part of an assembly (20, 21) and within the said assembly (20, 21) exercises a thrust in a longitudinal direction of the precast concrete slab (1). 24. A device according to one of Claims 18-23 characterized in that in accord with one of the foregoing Claims, therein characterized in that the separation apparatus (20) and/or the assemble (20, 21) is guided on the rails (2). 25. A device according to one of Claims 18-24 characterized in that characterized, in that the assembly (20, 21) is placed securely on the rails (2), in particular, is clamped thereon.

Description

The invention relates to a method and device for adjusting the position of the precast panel structure of reinforced concrete slabs, in particular, solid roadbed for high-speed transport, while reinforced concrete slabs are poured from the bottom with a hardening compound and are supported on the base layer.

Known prefabricated panel structures of reinforced concrete slabs are also used as a roadbed for high-speed transport. At the same time high-speed vehicles move on rails. For uninterrupted and convenient operation of a high-speed road, it is required that the rails, as well as the base plates, be laid with great precision as to their height and plan position. The adjustment of the position of the rails is usually carried out by means of a known system of rail fasteners, as well as by installing gaskets of various thickness under the rails. In this way, an adjustment of rail position deficiencies of about 30 mm is achieved. The disadvantage here is that such adjustment measures do not allow for more substantial corrections, which, for example, are required when the base settles, as in these cases it is often necessary to take more significant corrective actions.

Thus, the objective of the present invention is to obtain a precast panel structure of reinforced concrete slabs, which also allows for the adjustment of large sizes, including height.

The problem is solved by the signs of claim 1 and claim 18 of the claims.

The method according to the invention makes it possible to correct the position of the precast panel structure of reinforced concrete slabs, in particular, of a solid roadbed for high-speed transport. The panel structure includes preferably two interconnected reinforced concrete slabs, while the reinforced concrete slabs are poured from the base construction side with a hardening compound and are supported on the base bearing layer. To correct the position of at least one reinforced concrete slab or its part, the reinforced concrete slab is completely or partially separated from the casting compound and / or from the base layer, then precisely oriented, and then re-filled with compound. This method allows for significant height adjustments. The slab separation can be carried out either chemically or mechanically. The most preferred method depends, in particular, on the environmental conditions and the compound material.

If the base structure, in particular, the compound layer and / or the carrier layer are separated in the longitudinal and / or transverse direction of the concrete slab, then a very simple method of separating the concrete slab is used. The choice of whether to separate from the base structure in the longitudinal or transverse direction depends on the nature of the draft of the plate, on the available tool and the surrounding conditions.

If the compound layer is cut at or near the point of contact with the concrete slab and / or the base layer, then a good new application and connection of the new compound to the concrete slab is ensured.

If before a sharp base structure, in particular, a compound layer, in this base structure, in particular, a hole is made in the compound layer for insertion of the cutting tool, in particular, the saw blade, then there is no need to separate the plate in order to start cutting.

If the cut line is not equal in length to the length of the reinforced concrete slab, in particular, it does not start or does not end at the junction of two reinforced concrete slabs, then the possibility of a vulnerable spot at the junction of the slabs is eliminated.

If filling holes are opened or created on the reinforced concrete slab and are used to re-pour the compound, this greatly facilitates the pouring of the new compound.

Filling with a compound is possible, essentially, without air bags.

It is especially preferable if the filling holes closed by the old compound are opened and used for re-pouring.

If a reinforced concrete slab is straightened by mechanical or hydraulic lifting means, such as spindles (jacks) embedded in a precast concrete slab, this makes it possible to straighten the reinforced concrete slab in a simple way using the means often left from the first straightening in the reinforced concrete slab.

To avoid damage to the jacks when cutting the layer, it is preferable to remove the jacks before cutting from the cutting zone and only after cutting them to return to the supporting position.

For the speedy resumption of movement on a reinforced concrete slab, it is preferable if the reinforced concrete slab is poured, in particular, with a rapidly hardening bitumen-cement mortar, plastic or cement mortar.

The device according to the invention is a separating device for separating, in particular, a solid roadbed located under the reinforced concrete slab for high-speed rail transport from the base structure, in particular, the cast compound. Solid roadbed often consists of at least the first and second reinforced concrete slabs. The separation device is located on a detachable or next reinforced concrete slab, preferably on rails.

Another device according to the invention is a separating device for separating at least a portion of a reinforced concrete slab of a solid roadbed for a high-speed rail vehicle from its base structure. The separation device is located on a guide independent of the detachable reinforced concrete slab, in particular, on the overrunning path. A solid roadbed is laid in most cases by a double track, so that the separating device can be guided along the overrunning path to separate the necessary roadway.

If the separating device within the constructive unit lifts the reinforced concrete slab in the longitudinal direction, then with a rigid fastening of the separator's stop, a relatively large part of the way is made to make a separating section.

Preferably, the separation device and / or the structural unit are guided along rails. In this way, an exact cut can be made.

If the structural unit is rigidly fixed on the rails, in particular, pressed against them, then a quick switch is possible to continue the cut.

Other advantages of the invention are described in the following examples of execution. Shown:

FIG. 1 is a top view of a reinforced concrete slab;

FIG. 2 is a cross-section of the support structure of the reinforced concrete slab;

FIG. 3 - section of the compound layer;

FIG. 4 - raising the plate;

FIG. 5 - fill the gap between the plate and the base layer;

FIG. 6 - an example of the execution of the cable saw.

FIG. 1 shows a top view of reinforced concrete slab 1. Plate 1 has many individual protrusions on which rails are mounted 2. Rail fasteners, which can be made of various known shapes, allow the rail to be adjusted in vertical and horizontal directions. If this possibility of alignment is insufficient, for example, due to the subsidence of the base, there is a need to adjust the height of the plate 1 itself. For this, in the proposed example of execution, jacks 7 are installed in six places, which serve to align plate 1. and also - in this example - in the middle of plate 1, jacks 7 provide fine adjustment of plate 1 due to more or less strong unscrewing of jack 7. These jacks 7, which are usually used when laying plate 1, receive thanks to Shaving a different purpose, as they allow you to adjust the position of the already laid plates 1. The jacks 7 are installed in the holes of the plate 1.

FIG. 2 shows a cross-section of the design of reinforced concrete slab 1, as well as its supports. On the carrier layer 5 with intermediate pouring of compound 4, plate 1 is located. The carrier layer can be hydraulically connected or, for example, can also be asphalt or another carrier layer corresponding to the purpose. Compound 4 rigidly connects the slab 1 with the base layer 5. The jack 7, which served to orient the reinforced concrete slab 1 when it is being laid, since when it is first laid down the slab 1 it does not perform the carrier function, it is presented with a retracted screw. It is installed in the hole of the compound layer 4, so that it can be used in the future.

To adjust the plate 1 according to FIG. 3, the compound layer 4 is cut. Thus, after cutting the layer of compound 4, the plate 1 can be moved within the panel structure in the vertical direction. It is especially advantageous when a cut in compound layer 4 is made directly at the place of separation of plate 1. This improves to a great extent the reliability of the connection of compound 4 which is poured later to reinforced concrete slab 1. The former connecting layer of compound layer 4 with the composite plate 1 loses its function. and becomes a carrier, and the connection is a new layer. It may also be preferable if the incision is made at the junction of the base layer 5 with compound 4. Here the former broken joint is also restored. In any case, the separation is easier to carry out at the junction of the plate 1 with the compound layer 4 or near this place, since with a known thickness of the plate 1 this place can be easily detected by the control device and separated. Since the thickness of compound 4 can be different, this joint is easier to determine than the joint with a hydraulically connected carrier layer 5.

If plate 1 needs to be lowered, then a rectangular area is cut out in compound 4, and then plate 1 is lowered into the resulting cavity.

FIG. 4 shows the raising of the plate 1. By screwing in the screw of the jack 7 and the corresponding alignment of the plate 1, the plate 1 is lifted relative to the base. At the same time the gap increases.

FIG. 5 plate 1 is again poured under the compound. The layer of compound 4 is hardened, and thus the jack 7 can again be unloaded.

FIG. 6 shows schematically the installation of the separation device relative to the plate 1. The separation device, which can be represented by a cable saw, oxygen lance, etc., is mounted on a mobile skid 21. The slide 21 is pulled using the cable winch to the place where the plate 1 should be separated. A cable winch or rope is attached at a knot in the form of counter support. Preferably, the anchor point is located on the adjacent plate 1. As a guide for the slide 21, a rail 2 may be used, which is laid on plate 1. Rail 2 may also serve to fasten the counter support. The countercore is pressed on the rail preferably, and after using the maximum path, the slide 21 can be shifted to continue the cut.

For the fastest hardening of a new compound, it is preferable if, in particular, at sub-zero temperatures, the material being poured or the gap is heated. To ensure a good connection with the new compound, it is also preferable if the gap before filling is cleared, for example, with a high-pressure blower. The gap can also be extended to the base layer if the new casting material is intended to produce a good joint.

The present invention can also be used to replace whole reinforced concrete slabs. In this case, the plates are completely separated from the base structure and then the replacement plate is re-laid.

Claims (25)

CLAIM 1. A method for adjusting the position of a panel structure made of reinforced concrete slabs (1), in particular a solid roadway for high-speed transport, while reinforced concrete slabs (1) have spindles (jacks) (7) and rely on the base structure from the solidified compound layer poured from below (4) and the carrier layer (5), characterized in that to adjust the position of at least one reinforced concrete slab (1), the slab (1) is separated at least partially from the base structure, in particular from the compound layer (4) and / or n the supporting layer (5), during separation the jacks (7) are removed from the cutting zone, after separation the jacks (7) are placed in their support position, the reinforced concrete slab (1) is leveled with jacks (7) and then the concrete concrete slab ( 1) again fill with a compound from below (4). 2. The method according to claim 1, characterized in that the base structure, in particular the compound layer (4), is separated at least partially. 3. The method according to claim 1 or 2, characterized in that the base structure, in particular the compound layer (4), is separated in the longitudinal and / or transverse direction of the reinforced concrete slab (1). 4. The method according to one of claims 1 to 3, characterized in that the compound layer (4) is separated, essentially, at the place of contact with the reinforced concrete slab (1) and / or the carrier layer (5) or near this place. 5. The method according to one of claims 1 to 4, characterized in that the base structure, in particular the compound layer (4), is separated at least along the entire width of the reinforced concrete slab (1). 6. The method according to one of claims 1 to 5, characterized in that before opening the base structure, in particular the compound layer (4), in the base structure, in particular in the compound layer (4), an opening for introducing the cutting tool is made into particular saw blade. 7. The method according to one of claims 1 to 6, characterized in that the dividing line has a length not equal to the length of the reinforced concrete slab (1), and this line, in particular, does not start or end at the junction of two reinforced concrete slabs (1 ) 8. The method according to one of claims 1 to 7, characterized in that in the reinforced concrete slab (1), the pouring holes (9) are opened or created and used for refilling. 9. The method according to one of claims 1 to 8, characterized in that the filling openings closed with the old compound are opened and used for refilling. 10. The method according to one of claims 1 to 9, characterized in that the precast plate (1) is aligned with lifting means located in the reinforced concrete slab (1) and / or outside, in particular mechanical or hydraulic, such as jacks (7) or pillows . 11. The method according to one of claims 1 to 10, characterized in that the reinforced concrete slab (1) is poured, in particular, with a quick setting bitumen-cement mortar, plastic or cement mortar. 12. The method according to one of claims 1 to 11, characterized in that the base structure, in particular the compound layer (4), is cut with a saw, in particular a wire saw (20), a power saw or a saw blade. 13. The method according to one of claims 1 to 12, characterized in that the base structure, in particular the compound layer (4), is cut with an oxygen spear. 14. The method according to one of claims 1 to 13, characterized in that the base structure, in particular the compound layer (4), is cut with a stream of water under high pressure. 15. The method according to one of claims 1 to 14, characterized in that the gap in the base structure is cleaned before refilling. 16. The method according to one of claims 1 to 15, characterized in that for the quickest setting of the compound (4), the pouring place is heated. 17. The method according to one of claims 1 to 16, characterized in that a whole reinforced concrete slab (1) is separated from the panel structure and replaced with another replaceable slab. 18. A device containing a separation device for separating at least part of a reinforced concrete slab (1) of a solid roadway for high-speed rail transport from the base structure, in particular, when adjusting the position by the method according to one of claims 1-17, characterized in that the separation the device (20, 21) is installed on a detachable or subsequent reinforced concrete slab (1). 19. A device containing a separation device for separating at least part of a reinforced concrete slab (1) of a solid roadbed for high-speed rail transport from its base structure, in particular, when adjusting the position by the method according to one of claims 1-17, characterized in that separation device FIG. one FIG. 2 FIG. 3 track (20, 21) is installed on a guide independent from the detachable reinforced concrete slab (1), in particular, on a bypass. 20. The device according to p. 18 or 19, characterized in that the separation device (20, 21) is designed to separate the base structure, in particular, located under the reinforced concrete slab (1) of the compound layer (4). 21. The device according to one of claims 18 to 20, characterized in that the reinforced concrete slabs (1) are interconnected. 22. The device according to one of claims 18 to 21, characterized in that the separation device (20) is mounted on the rails (2) of the first or second reinforced concrete slab (1). 23. The device according to one of claims 18 to 22, characterized in that the separation device (20) is part of the structural unit (20, 21) and within the structural unit (20, 21) performs a lift in the longitudinal direction of the reinforced concrete slab (1) . 24. The device according to one of claims 18 to 23, characterized in that the separation device (20) and / or the structural unit (20, 21) is guided along the rails (2). 25. The device according to one of paragraphs.18-24, characterized in that the structural unit (20, 21) is rigidly fixed, in particular pressed, on the rails (2).