CN114753193A

CN114753193A - Method and device for replacing road bed board

Info

Publication number: CN114753193A
Application number: CN202210511051.5A
Authority: CN
Inventors: 徐冕; 王丁一; 李朝晖; 李光均; 王永明; 周向国; 刘广; 刘鹏飞; 赵豹; 李晓杰
Original assignee: Shanghai Civil Engineering Co Ltd of CREC; First Engineering Co Ltd of Shanghai Civil Engineering Co Ltd of CREC
Current assignee: Shanghai Civil Engineering Co Ltd of CREC; First Engineering Co Ltd of Shanghai Civil Engineering Co Ltd of CREC
Priority date: 2022-05-11
Filing date: 2022-05-11
Publication date: 2022-07-15

Abstract

The invention provides a method and a device for replacing a ballast bed slab, and relates to the technical field of ballastless track ballast bed slab repair. The method for replacing the ballast bed plate comprises the following steps: s1: obtaining the disease condition of the track bed plate to determine the replacement area of the track bed plate and make construction preparation; s2: cutting the ballast bed plate in the replacement area; s3: removing the ballast bed plate in the replacement area; s4: and pouring in the replacement area to obtain a new track bed board. Compared with the existing method for chiseling and remaking, the method for replacing the track bed slab avoids the damage to the steel rail, reduces the time required for cutting off the steel rail and welding the steel rail, and reduces the workload, thereby reducing the construction time and being beneficial to the rapid operation of the railway.

Description

Method and device for replacing road bed board

Technical Field

The invention relates to the technical field of ballastless track bed board repair, in particular to a method and a device for replacing a bed board.

Background

The ballastless track is a track which adopts integral foundations such as concrete, asphalt mixture and the like to replace a loose gravel track bed. The ballast bed plate is an important component of the ballastless track, the safety and the reliability of the ballast bed plate are particularly important, and when the ballastless track bed plate has diseases, the diseases must be treated quickly in time. At present, when a large-area defect occurs on a track bed plate, the treatment mode is mainly chiseling and redoing, but the existing chiseling and redoing mode is low in construction speed, a steel rail at a defect part needs to be cut off when redoing is chiseled, and the cut steel rail is welded back to the original position after the track bed plate is redone, so that the steel rail is damaged to a certain extent, and the reliability of the steel rail during working is reduced; and the operation time is increased by cutting off the steel rail and welding the steel rail, so that the skylight time of railway maintenance is prolonged, and the operation of the railway is not facilitated.

Disclosure of Invention

In order to overcome the defects in the prior art, the invention provides a ballast bed plate replacing method and a ballast bed plate replacing device.

The invention provides the following technical scheme:

a ballast bed board replacing method comprises the following steps: s1: obtaining the disease condition of the track bed plate to determine the replacement area of the track bed plate and make construction preparation; s2: cutting the ballast bed plate in the replacement area; s3: removing the ballast bed plate in the replacement area; s4: and pouring in the replacement area to obtain a new track bed board.

In a possible implementation manner, the determining of the replacement area of the track bed plate includes dividing the track bed plate into a first working area, a second working area and a third working area, which are adjacent to each other, wherein the second working area is damaged, and the replacement area is determined to be the second working area.

In a possible implementation manner, the cutting the track bed board in the replacement area includes cutting the track bed board in the replacement area along a first cutting position and a second cutting position, and cutting the track bed board in the replacement area into a first demolition plate, a second demolition plate, and a third demolition plate.

In a possible embodiment, the first cutting station and the second cutting station extend in the same direction as the track bed.

In a possible embodiment, the removing the track bed slab in the replacement area includes moving the first removing plate, the second removing plate and the third removing plate out of the second working area and moving the first removing plate, the second removing plate and the third removing plate to a placement station by a lifting device.

In a possible embodiment, the lifting device is connected to main ribs arranged on the first demolition plate, the second demolition plate, and the third demolition plate by a rope, so that the first demolition plate, the second demolition plate, and the third demolition plate move out of the second work area and move to the placement station, respectively.

In a possible implementation manner, before the step of pouring in the replacement area, preparation before pouring is further included, where the preparation before pouring includes setting a main reinforcement, an inner reinforcement, and a support frame in the second working area, the main reinforcement is connected with the inner reinforcement, and the support frame is fixed on a steel rail of the ballastless track.

In a possible embodiment, the main rib and the inner rib are fixedly connected by means of binding.

In a possible embodiment, a group of the supporting frames is arranged in the second working area every 2-3 meters.

In a second aspect, the application further provides a replacing device, the ballastless track comprises a surveying mechanism, a cutting mechanism, a dismantling mechanism and a pouring mechanism, the replacing device is used for replacing a track bed board on the ballastless track, and the surveying mechanism is used for acquiring the disease condition of the track bed board; the cutting mechanism is used for cutting the road bed plate in the replacement area; the dismantling mechanism is used for dismantling the roadbed slab in the replacing area; and the pouring mechanism is used for pouring in the replacement area to obtain a new track bed board.

Compared with the prior art, the invention has the following beneficial effects:

according to the track bed slab replacing method, the track bed slab with the defects is cut and removed, and the track bed slab is poured again in the area where the track bed slab is removed, so that the fast replacement of the defect track bed slab can be realized under the condition that the steel rail is not cut off. Compared with the existing method for chiseling and remaking, the method for replacing the track bed slab avoids the damage to the steel rail, reduces the time required for cutting off the steel rail and welding the steel rail, and reduces the workload, thereby reducing the construction time and being beneficial to the rapid operation of the railway.

In order to make the aforementioned objects, features and advantages of the present application more apparent and understandable, preferred embodiments are described below in detail in conjunction with the accompanying drawings.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and those skilled in the art can also obtain other related drawings based on the drawings without inventive efforts.

Fig. 1 shows a flow chart of the ballast bed replacing method of the present application;

FIG. 2 shows a schematic view of the ballast bed slab cutting of the present application;

FIG. 3 is a schematic view of the cutting of the track bed slab on a plurality of work tracks of the present application;

FIG. 4 shows a schematic view of the ballast bed transport of the present application;

FIG. 5 shows a schematic view of the isolation layer laid on the base plate of the present application;

fig. 6 shows a schematic view of the present application in which a support bracket is provided on a rail.

Description of the main element symbols:

100-ballast bed plate; 101-a first demolition plate; 102-a second demolition plate; 103-a third demolition plate; 110-a base plate; 200-sleeper; 210-a shoulder; 220-a fastener; 230-inner ribs; 300-steel rail; 400-hoisting equipment; 500-an isolation layer; 600-a support frame; 710-first cutting bit; 720-second cut position; 730-third separation site; 740-fourth split bit; 810-a first work track; 820-a second work track; 910-a first work area; 920-a second work area; 930-a third work area; 940-fourth work area.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention and are not to be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, but are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise explicitly stated or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., as being permanently connected, detachably connected, or integral; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

In the present invention, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the second feature or the first and second features may be indirectly contacting each other through intervening media. Also, a first feature "on," "above," and "over" a second feature may be directly on or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

Example one

Referring to fig. 1 to 6, in one embodiment, a method for replacing a ballast bed slab is provided. The method for replacing the track bed board is used for a ballastless track to quickly replace the track bed board 100 with large-area diseases on the ballastless track.

The ballastless track is composed of a track bed board 100, a base plate 110, a sleeper 200 and a steel rail 300. The track bed plate 100 is disposed above the base plate 110, the sleepers 200 are integrally formed on the upper surface of the track bed plate 100, and the rails 300 are fixed above the sleepers 200.

Referring to fig. 1, the method for replacing the ballast bed slab includes the following steps:

s1: and acquiring the disease condition of the ballast bed plate 100 to determine the replacement area of the ballast bed plate 100 and prepare for construction.

With reference to fig. 2 and 3, in some embodiments, an operator divides the track bed slab 100 into a first working area 910, a second working area 920 and a third working area 930 according to a defect condition of the track bed slab 100, the defect area of the track bed slab 100 is located in the second working area 920, the first working area 910 and the third working area 930 are respectively located at two sides of the second working area 920, the replacement area is the second working area 920, and a working object of the track bed slab replacement method is a damaged track bed slab in the second working area 920.

S2: cutting the ballast bed board 100 in the replacement area.

In some embodiments, an operator first cuts the track bed 100 within the second work area 920 along the first and

second cutting locations

710 and 720, respectively, such that the track bed 100 within the second work area 920 is divided into three portions. The extending directions of the first cutting position 710 and the second cutting position 720 are the same as the extending direction of the ballast bed 100.

Because in the second work area 920 the bed board 100 along the third separation position 730 with in the first work area 910 the bed board 100 disconnection, in the second work area 920 the bed board 100 along the fourth separation position 740 with in the third work area 930 the bed board 100 disconnection, so in the second work area 920 the bed board 100 is cut the back, makes in the second work area 920 the bed board 100 is cut to first demolish board 101, second demolish board 102 and third demolish board 103. The extending directions of the third separating position 730 and the fourth separating position 740 are perpendicular to the extending direction of the ballast bed plate 100.

In some embodiments, the track bed deck 100 within the second work area 920 is cut by a cutter.

In some embodiments, the first cutting location 710 and the second cutting location 720 are each located between two of the rails 300 to facilitate subsequent removal of the second removal plate 102.

In some embodiments, before cutting the track bed slab 100 in the damaged area, a guard assembly (not shown) is disposed on the steel rail 300, and the guard assembly is used to prevent the steel rail 300 from being accidentally damaged when cutting the track bed slab 100.

The protection assembly comprises geotextile and a protection box, the geotextile is wrapped on the steel rail 300, and the protection box is covered on the steel rail 300 in an inverted manner so as to protect the steel rail 300. The shape of the inner cavity of the protective box is matched with the shape of the steel rail 300.

S3: and removing the ballast bed board 100 in the replacement area.

Referring to fig. 4, in some embodiments, the first cutting location 710 and the second cutting location 720 are located between two of the steel rails 300, after the track bed slab 100 is divided into the first demolition plate 101, the second demolition plate 102, and the third demolition plate 103, the second demolition plate 102 is separated from the first demolition plate 101 and the third demolition plate 103, the second demolition plate 102 can be lifted upwards by a lifting apparatus 400, so that the second demolition plate 102 is separated from the base plate 110, and the lifting apparatus 400 can move the second demolition plate 102 to a placement station.

The placing station is used for placing the ballast bed plate 100 removed from the second working area 920.

In some embodiments, after the second demolition plate 102 is demolished, an operator may manually cooperate a jack to move the first demolition plate 101 in a direction away from the third demolition plate 103 to separate the tie 200 fixed on the first demolition plate 101 from the rail 300 so that the rail 300 does not obstruct upward lifting of the first demolition plate 101 and the tie 200, and then lift the first demolition plate 101 upward by the lifting apparatus 400 and move to the placement station. Similarly, the third demolition plate 103 may be lifted upwards in the same manner and moved to the placement station.

In other embodiments, due to limited construction space, the first demolition plate 101 cannot move in a direction away from the third demolition plate 103, and the third demolition plate 103 cannot move in a direction away from the first demolition plate 101. An operator may move the first demolition plate 101 to the area where the second demolition plate 102 is demolished by manually engaging a jack such that the first demolition plate 101 can be lifted up without being obstructed by the rail 300 in the area where the second demolition plate 102 is demolished. Similarly, the third demolition plate 103 may be lifted upwards in the same manner.

The first demolition plate 101 and the third demolition plate 103 are demolished in the above manner, so that a space required by construction can be effectively reduced, and the ballastless track with a smaller construction space is adapted.

After the track bed slab 100 in the second working area 920 is removed from the base plate 110, the steel rails 300 in the second working area 920 are in a suspended state, but since the track bed slab 100 in the first working area 910 and the third working area 930 still supports the steel rails 300, the influence on the steel rails 300 in the second working area 920 is small after the track bed slab 100 in the second working area 920 is removed.

In some embodiments, the steel rail 300 is fixed to the tie 200 by a fastener 220, and an operator removes the fastener 220 from the tie 200 when removing the first removal plate 101 and the third removal plate 103.

In some embodiments, a shoulder 210 is provided on the tie 200, and the shoulder 210 is used to limit the movement of the rail 300. When the highest position of the retaining shoulder 210 is lower than the lowest position of the steel rail 300, the retaining shoulder 210 has no influence on the removal of the first removal plate 101 and the third removal plate 103; when the highest of the shoulders 210 is higher than the lowest of the rails 300, the shoulders 210 should be chiseled off before the first and third dismantling

plates

101 and 103 are dismantled.

In some embodiments, the lifting apparatus 400 is a lift truck, and a movement device of the lift truck is capable of cooperating with the rail 300 to enable the lift truck to move along the rail 300.

In some embodiments, as shown in fig. 4, a plurality of ballastless tracks are disposed on a railway, the railway includes a first working track 810 and a second working track 820, when the track bed slab 100 in the second working area 920 on the first working track 810 needs to be replaced, the hoisting apparatus 400 can stop at the fourth working area 940 on the second working track 820, and the second working area 920 and the fourth working area 940 are parallel to each other.

In some embodiments, main ribs are provided in the track bed slab 100, after the track bed slab 100 in the second working area 920 is divided into the first demolition plate 101, the second demolition plate 102, and the third demolition plate 103, an operator opens a small opening at two ends of the second demolition plate 102 to leak the main ribs at two ends of the track bed slab 100, then two ends of a rope are respectively fixed to the main ribs at two ends, and the rope is lifted by the lifting hook on the lifting device 400 from the middle, so that the rope drives the second demolition plate 102 to lift upwards. Likewise, the first demolition plate 101 and the third demolition plate 103 may cooperate with the rope and the hoisting device 400 in the same manner.

The steps after removing the ballast bed slab 100 in the replacement area further include cleaning a base surface and laying an isolation layer.

The cleaning base surface is to clean up the interfering objects such as broken stones and garbage on the base plate 110 after removing the ballast bed board 100 in the second working area 920, so as to facilitate the subsequent steps.

As shown in fig. 5, after the base surface is cleaned, a layer of the isolation layer 500 is laid on the base plate 110, and the isolation layer 500 is used for preventing the force generated by the structural deformation of the track bed board 100 from being transmitted to the base plate 110, and for heat insulation and vibration isolation. The isolation layer 500 is geotextile.

The step of casting in the replacement area further comprises preparation before casting.

Preparation before casting includes placing new said main bars in said second work area 920.

In some embodiments, an inner rib 230 is disposed in the sleeper 200, and the preparation before casting further includes disposing a new inner rib 230 in the second working area 920, and the inner rib 230 in the second working area 920 and the main rib in the second working area 920 are bound and fixed by an insulating tie.

As shown in fig. 6, the preparation before casting further includes disposing a support frame 600 on the steel rail 300 in the second working area 920, wherein the support frame 600 is used for supporting and adjusting the profile of the steel rail 300, and the steel rail 300 is adjusted to a proper profile by fine-adjusting the support frame 600.

In some embodiments, the supporting frame 600 is fixed on the ground, and two ends of the supporting frame 600 are clamped on two of the rails 300 respectively to limit the lateral direction, the longitudinal direction and the height of the rails 300, so as to prevent the rails 300 from being displaced during the casting process.

In some embodiments, a group of the supporting frames 600 is disposed every 2-3 meters in the second working area 920 to ensure the linear stability of the steel rail 300.

S4: and pouring in the replacement area to obtain a new track bed board.

The step of casting in the replacement area includes installing a casting template in the second working area 920, adding casting material into the template, removing the template, and cleaning the site.

The track bed slab 100 formed by the pouring template has the same structure as the track bed slab 100 before being dismantled. In some embodiments, the casting form is disposed within the structure of the sleeper 200 such that the sleeper 200 is integrally formed with the track bed slab 100 during casting.

In some embodiments, the casting material is concrete, and in other embodiments, the concrete is modified concrete added with a polymer emulsion to further improve the hardness and waterproof capability of the concrete after the concrete is solidified.

In some embodiments, a damaged portion also exists in the track bed 100 in the first working area 910 or the third working area 930, and after the track bed 100 in the second working area 920 is replaced, an operator may also replace the track bed 100 in the first working area 910 or the third working area 930 by using the track bed replacement method, so as to quickly replace the track bed 100 with a large-area damaged portion.

According to the track bed slab replacing method, the track bed slab 100 with the defects is cut and removed, and the track bed slab 100 is poured again in the area where the track bed slab 100 is removed, so that the track bed slab 100 with the defects can be rapidly replaced without cutting off the steel rail 300. Compared with the existing method for removing remnants, the method for replacing the track bed slab avoids damage to the steel rail 300, reduces the time required for cutting off the steel rail 300 and welding the steel rail 300, reduces the workload, reduces the construction time, and is beneficial to the rapid operation of railways.

Example two

The embodiment provides a replacing device, which comprises a surveying mechanism, a cutting mechanism, a dismantling mechanism and a pouring mechanism, wherein the replacing device is used for replacing a track bed plate on a ballastless track, and the surveying mechanism is used for acquiring the disease condition of the track bed plate; the cutting mechanism is used for cutting the road bed board in the replacement area; the removing mechanism is used for removing the track bed plate in the replacing area; and the pouring mechanism is used for pouring in the replacement area to obtain a new track bed board.

The replacing device can rapidly replace the ballast bed board 100 with diseases on the ballastless track by using the ballast bed board replacing method.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims

1. A method for replacing a ballast bed plate with diseases on a ballastless track is characterized by comprising the following steps: s1: acquiring the fault condition of the track bed plate to determine the replacement area of the track bed plate and make construction preparation; s2: cutting the roadbed slab in the replacement area; s3: removing the ballast bed plate in the replacement area; s4: and pouring in the replacement area to obtain a new track bed plate.

2. The method of claim 1, wherein the determining the replacement area of the ballast bed slab comprises dividing the ballast bed slab into a first working area, a second working area and a third working area which are adjacent to each other, wherein the second working area is damaged, and the replacement area is determined to be the second working area.

3. The method of claim 2, wherein the cutting the track bed slab in the replacement area comprises cutting the track bed slab in the replacement area along a first cutting location and a second cutting location, respectively, to cut the track bed slab in the replacement area into a first demolition plate, a second demolition plate, and a third demolition plate.

4. The ballast bed slab replacing method according to claim 3, wherein the first cutting station and the second cutting station extend in the same direction as the ballast bed slab.

5. The method of replacing a ballast bed slab of claim 3, wherein the removing the ballast bed slab in the replacement area includes moving the first, second, and third removal plates out of the second work area and to a placing station, respectively, by a lifting device.

6. A method for changing a track bed according to claim 5, characterized in that the hoisting means are connected by means of ropes to main tendons provided on the first, second and third demolition plates, so that the first, second and third demolition plates are moved out of the second work area and to the placing station, respectively.

7. The method of claim 2, further comprising a preparation before casting in the replacement area, wherein the preparation before casting comprises arranging a main rib, an inner rib and a support frame in the second working area, wherein the main rib is connected with the inner rib, and the support frame is fixed on a steel rail of the ballastless track.

8. The method for replacing a track bed slab as claimed in claim 7, wherein the main ribs and the inner ribs are fixedly connected by binding.

9. The method of replacing a ballast bed slab as claimed in claim 7, wherein a group of said supporting frames is provided every 2-3 meters in said second working area.

10. The replacing device is characterized by comprising a surveying mechanism, a cutting mechanism, a dismantling mechanism and a pouring mechanism, wherein the replacing device is used for replacing a track bed board on a ballastless track, and the surveying mechanism is used for acquiring the disease condition of the track bed board; the cutting mechanism is used for cutting the road bed plate in the replacement area; the dismantling mechanism is used for dismantling the roadbed slab in the replacing area; and the pouring mechanism is used for pouring in the replacement area to obtain a new track bed board.