Railway track well precast board sealing device

Abstract

The application provides a track row well prefabricated plate plugging device, and relates to the field of track traffic construction.The device comprises a tunnel middle plate, which is arranged in the middle side of the inside of a tunnel, and a middle partition wall is arranged in the middle side of the bottom end surface of the inside of the tunnel, and a scaffold is arranged on both sides of the middle partition wall; a prefabricated middle plate is arranged in the inside of the track hoisting well mouth of the tunnel middle plate, and a reinforcing steel bar is inserted into the upper part of both sides of the prefabricated middle plate; the prefabricated middle plate is prefabricated in advance, which creates favorable conditions for the construction of the contact network and cable bridge of the negative second floor, thereby greatly shortening the waiting time, and greatly improving the construction speed; the problem that the traditional cast-in-place reinforced concrete plugging structure needs to be stopped for waiting during the process of waiting for the complete solidification of the cast-in-place reinforced concrete plugging structure, thereby affecting the construction speed, is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of rail transit construction technology, in particular to a rail track well prefabricated plate sealing device. BACKGROUND

[0002] In the process of urban rail transit construction, in order to meet the needs of underground station and interval track laying, a hole for track hoisting well is usually reserved on the station structure plate, which is usually called a rail track well. The function of the rail track well is to place the rail track product from the assembly area to the track laying vehicle and transport it to the track laying working surface. Its position and size should meet the requirements of safe and efficient hoisting of the rail track. The track laying unit requires that the rail track hole be opened directly above the subway line, and after the track laying operation is completed, the rail track well is sealed by using post-poured reinforced concrete structure.

[0003] The traditional cast-in-place reinforced concrete sealing structure of the rail track well is constructed by first erecting a scaffold on the negative two layer (track area) after the track laying is completed, pouring the negative one layer rail track hole, erecting a negative one layer scaffold after the negative one layer middle plate reaches the design strength, pouring the top plate rail track well, and then removing the scaffold from top to bottom after the top plate reaches the design strength. This makes the whole sealing construction process not conducive to the construction conditions of the catenary, cable bridge and the like, and also not conducive to timely full-line hot sliding (hot sliding includes the rail track well stop line), and also affects the speed of engineering construction, especially during the waiting period for the cast-in-place reinforced concrete to completely solidify, which requires stopping work and waiting, thereby wasting a lot of time. SUMMARY

[0004] Therefore, the present application provides a rail track well prefabricated plate sealing device to solve the problem that the traditional cast-in-place reinforced concrete sealing structure needs to stop work and wait during the process of waiting for the cast-in-place reinforced concrete to completely solidify, which is not conducive to the construction conditions of the catenary, cable bridge and the like, and also not conducive to timely full-line hot sliding, and also affects the speed of engineering construction.

[0005] The present application provides a rail track well prefabricated plate sealing device, which specifically comprises: a tunnel middle plate, which is arranged in the middle side of the tunnel interior, and a middle partition wall is arranged in the middle side of the bottom end surface of the tunnel interior, and scaffolds are arranged on both sides of the middle partition wall; a prefabricated middle plate is arranged in the rail track hoisting well of the tunnel middle plate in a uniform manner, and a reinforcing steel bar is inserted into the upper part of both sides of the prefabricated middle plate; and a sealing mechanism is arranged on the upper end of both sides of the middle partition wall.

[0006] Further, the middle partition wall comprises a middle partition wall lower segment, a middle partition wall post-poured segment and a connecting steel bar, the middle partition wall lower segment is arranged in the middle side of the bottom end surface of the tunnel interior, and the connecting steel bar is embedded in the middle partition wall lower segment; and the middle partition wall post-poured segment is poured on the upper end of the middle partition wall lower segment.

[0007] Further, the upper end of the connecting steel rod penetrates the top surface of the lower section of the partition wall, and the upper end of the connecting steel rod is located inside the post-cast section of the partition wall.

[0008] Further, four embedded lifting rings are embedded in the upper part of the prefabricated middle plate, and a connecting sleeve is welded to one side of each embedded lifting ring; the connecting sleeve is inserted into the reinforcing steel bar.

[0009] Further, a pouring hole is formed in the middle of the upper surface of the prefabricated middle plate, and a feeding pipe is arranged inside the pouring hole; the height of the feeding pipe is equal to the thickness of the middle part of the prefabricated middle plate.

[0010] Further, two rectangular grooves are formed in the bottom surface of the prefabricated middle plate in a left-right symmetrical manner, and a pre-embedded steel plate is arranged inside each rectangular groove; a reinforcing column is arranged on the upper surface of the pre-embedded steel plate in a uniform manner, and the upper end of the reinforcing column is located inside the prefabricated middle plate.

[0011] Further, the sealing mechanism comprises steel formworks, connecting rods and angle steels, the number of steel formworks is two, and eight connecting rods are inserted into the two steel formworks in a uniform manner; an angle steel is welded to the upper end of the opposite surface of each steel formwork.

[0012] Further, threads are arranged on the left and right ends of each connecting rod, the threads on the two ends of the connecting rod are distributed in a symmetrical manner, and a fastening nut is connected to the left and right ends of each connecting rod through threads.

[0013] Further, when the sealing mechanism is in a sealed state, the upper ends of the two angle steels are welded to the bottom surface of the two pre-embedded steel plates at the bottom of the prefabricated middle plate.

[0014] Beneficial effects

[0015] 1、Through the arrangement of the prefabricated middle plate, the prefabricated middle plate can be prefabricated in advance, then the lower section of the partition wall is constructed by erecting a scaffold in the negative two layer, then the steel formwork is installed by cooperating the connecting rod with the nut, then the prefabricated middle plate is hoisted and installed into the track hoisting well mouth on the tunnel middle plate, then the steel formwork and the pre-embedded steel plate at the bottom of the prefabricated middle plate are welded by using the angle steel, then the concrete is poured into the feeding pipe to form the post-cast section of the partition wall, then the scaffold is removed, the site is cleaned, and other professional construction track areas are handed over; finally, the scaffold is erected on the top of the prefabricated middle plate, and the top track well is blocked for construction operation, in this process, since the negative two layer scaffold has been removed, and the site obstacles have been cleaned, favorable conditions are created for the construction of the negative two layer contact net and cable bridge, etc., and the whole line can be quickly heated and slid, and the prefabricated middle plate is prefabricated in advance, which greatly shortens the waiting time for shutdown, thereby greatly improving the speed of engineering construction.

[0016] 2、The application can further reinforce the plurality of prefabricated middle plates by cooperating the connecting sleeve with the reinforcing steel bar, removing the scaffold after the plugging of the top rail row well is completed, then inserting the connecting sleeve inside the prefabricated middle plate top into the reinforcing steel bar, and welding the reinforcing steel bar on the connecting sleeve, so that the prefabricated middle plates can be further reinforced.

[0017] 3、The application can make the concrete fall down between the two opposite steel formworks under the action of gravity by pouring the concrete into the feeding pipe, and then form the post-poured section of the partition wall after the concrete solidifies, so that the partition wall and the prefabricated middle plate form a rigid joint, and meet the stress requirements of the partition wall under the train vibration load and wind pressure. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the application, the drawings of the embodiments will be briefly introduced below.

[0019] In the drawings:

[0020] Figure 1 is a schematic diagram of the axial structure of the embodiment of the application.

[0021] Figure 2 is a schematic diagram of the front structure of the embodiment of the application.

[0022] Figure 3 is a schematic diagram of the embodiment of the application Figure 2 is a schematic diagram of the local enlarged structure at A of the middle.

[0023] Figure 4 is a schematic diagram of the tunnel middle plate, partition wall, prefabricated middle plate and reinforcing steel structure of the embodiment of the application.

[0024] Figure 5 is a schematic diagram of the partition wall structure of the embodiment of the application.

[0025] Figure 6 is a schematic diagram of the prefabricated middle plate and reinforcing steel structure of the embodiment of the application.

[0026] Figure 7 is a schematic diagram of the prefabricated middle plate, feeding pipe and embedded steel plate structure of the embodiment of the application.

[0027] Figure 8 is a schematic diagram of the prefabricated middle plate and sealing mechanism structure of the embodiment of the application.

[0028] LIST OF REFERENCE NUMERALS

[0029] 1, tunnel mid-plate; 2, tunnel; 3, mid-partition wall; 301, lower section of mid-partition wall; 302, post-poured section of mid-partition wall; 303, connecting steel bar; 4, scaffold; 5, prefabricated mid-plate; 501, embedded lifting ring; 502, connecting sleeve; 503, feeding pipe; 504, embedded steel plate; 505, reinforcing column; 506, rectangular groove; 6, sealing mechanism; 601, steel formwork; 602, connecting rod; 603, angle steel; 7, reinforcing steel bar. DETAILED DESCRIPTION

[0030] In order to make the purpose, scheme and advantages of the technical solutions of the present application clearer, the technical solutions of the embodiments of the present application will be described clearly and completely below in conjunction with the drawings of specific embodiments of the present application.

[0031] Embodiment: Please refer to Figures 1 to 8 as shown:

[0032] The present application provides a track row well prefabricated plate plugging device, including tunnel mid-plate 1, tunnel mid-plate 1 is arranged in the inside of tunnel 2 middle side, and the inside bottom end surface of tunnel 2 middle side is provided with mid-partition wall 3, and the inside bottom end surface of tunnel 2 is located in the left and right sides of mid-partition wall 3 and is provided with scaffold 4; the track hoisting well mouth of tunnel mid-plate 1 is placed with prefabricated mid-plate 5 in a uniform manner, and one reinforcing steel bar 7 is inserted into the upper part of the left and right sides of prefabricated mid-plate 5; the left and right sides of mid-partition wall 3 are provided with sealing mechanism 6.

[0033] As Figures 1 to 5 shown, mid-partition wall 3 includes lower section of mid-partition wall 301, post-poured section of mid-partition wall 302 and connecting steel bar 303, lower section of mid-partition wall 301 is arranged in the inside bottom end surface of tunnel 2 middle side, and connecting steel bar 303 is embedded in the inside of lower section of mid-partition wall 301; post-poured section of mid-partition wall 302 is poured on the upper end of lower section of mid-partition wall 301; the upper end of connecting steel bar 303 penetrates the top end surface of lower section of mid-partition wall 301, and the upper end of connecting steel bar 303 is located in the inside of post-poured section of mid-partition wall 302, through the arrangement of post-poured section of mid-partition wall 302, so that mid-partition wall 3 and prefabricated mid-plate 5 form a rigid joint, which meets the stress requirements of the partition wall under the action of train vibration load and wind pressure.

[0034] As Figure 1 , Figure 6 and Figure 7 shown, four embedded lifting rings 501 are embedded on the upper part of prefabricated mid-plate 5, and a connecting sleeve 502 is welded on one side of each embedded lifting ring 501, by inserting the connecting sleeve 502 into the reinforcing steel bar 7, the reinforcing steel bar 7 is welded on the connecting sleeve 502, so that the prefabricated mid-plates 5 can be further reinforced between them;

[0035] The connecting sleeve 502 is inserted with the reinforcing steel bar 7; the prefabricated middle plate 5 is provided with a pouring hole in the middle of the upper end face, and the pouring hole is internally provided with a feeding pipe 503; the height of the feeding pipe 503 is equal to the thickness of the middle part of the prefabricated middle plate 5; the bottom end face of the prefabricated middle plate 5 is provided with two rectangular grooves 506 in a left-right symmetrical manner, and each rectangular groove 506 is internally provided with a pre-embedded steel plate 504; the pre-embedded steel plate 504 is provided with a reinforcing column 505 on the upper end face in a uniform manner, and the upper end of the reinforcing column 505 is located in the prefabricated middle plate 5, so that the construction speed is greatly improved by the arrangement of the prefabricated middle plate 5.

[0036] As shown in Figure 1 , Figure 3 and Figure 7 , the sealing mechanism 6 comprises a steel formwork 601, a connecting rod 602 and an angle steel 603, the number of the steel formwork 601 is two, and eight connecting rods 602 are inserted on the two steel formworks 601 in a uniform manner; one angle steel 603 is welded on the upper end of the back face of each steel formwork 601; the outer left and right ends of each connecting rod 602 are provided with threads, and the threads at the two ends of the connecting rod 602 are distributed in a symmetrical manner, and the outer left and right ends of each connecting rod 602 are connected with a fastening nut through threads;

[0037] When the sealing mechanism 6 is in a sealing state, the upper ends of the two angle steels 603 are respectively welded on the bottom end faces of the two pre-embedded steel plates 504 at the bottom of the prefabricated middle plate 5, and the arrangement of the sealing mechanism 6 ensures that there is no gap between the bottom of the prefabricated middle plate 5 and the steel formwork 601, preventing the phenomenon of concrete leakage during pouring.

[0038] The specific use and role of the embodiment are as follows: in the present application, during the construction of urban rail transit, after all the track litters are hoisted into the well, when the track litter well needs to be sealed, first, according to the scheme drawing, the prefabricated middle plate 5 is prefabricated, which can be prefabricated on site or prefabricated in a factory, and concrete is used as a backup after strengthening;

[0039] Then the scaffold 4 is erected on the negative two layer to construct the lower section 301 of the partition wall, and the lower section 301 of the partition wall is demoulded after the concrete is poured, at this stage, the track litter well is divided into one half, and the hoisting of small materials for track laying can be carried out, then the steel formwork 601 is installed by the connecting rod 602 and the nut, and is used as a formwork for the post-pouring section;

[0040] Then the prefabricated middle plate 5 is hoisted and installed into the track hoisting well mouth on the tunnel middle plate 1 by using an 80-ton truck crane, a 15-ton forklift is used to horizontally transport to the truck crane operation position, after the prefabricated middle plate 5 is installed, the steel formwork 601 and the pre-embedded steel plate 504 at the bottom of the prefabricated middle plate 5 are welded by using the angle steel 603 at the bottom of the prefabricated middle plate 5, and the purpose of welding the angle steel 603 is to ensure that there is no gap between the bottom of the prefabricated middle plate 5 and the steel formwork 601, preventing the phenomenon of concrete leakage during pouring.

[0041] After the welding is completed, the concrete is poured into the inside of the feeding pipe 503, and then the concrete falls downward between the two opposite steel formworks 601 under the action of gravity, and then the diaphragm wall post-cast segment 302 is formed after the concrete solidifies, and then the anticorrosion and rust-proof treatment is performed on the outer exposed steel plate, the scaffold 4 is removed, the site is cleaned, and the track area is handed over to other professional construction; finally, the scaffold 4 is erected on the top of the prefabricated middle plate 5, the plugging construction operation of the top track well is performed, and in this process, since the negative two layer scaffold 4 has been removed and the site obstacles have been cleaned, favorable conditions are created for the construction of the catenary and cable bridge of the negative two layer, and the whole line heat sliding can be performed more quickly, and through the advance prefabrication of the prefabricated middle plate 5, the waiting time during shutdown is greatly shortened, thereby greatly improving the construction speed;

[0042] After the plugging of the top track well is completed, the scaffold 4 is removed, and then the reinforcing steel bars 7 are inserted into the inside of the connecting sleeve 502 on the top of the prefabricated middle plate 5, the reinforcing steel bars 7 are welded on the connecting sleeve 502, so that the prefabricated middle plates 5 can be further reinforced, and then the details of the prefabricated middle plate 5 are treated, the horizontal and vertical joints of the prefabricated middle plate 5 are filled with epoxy mortar, and then 100mm thick fine stone concrete is poured on the top of the prefabricated plate, and the steel mesh is arranged inside, and the surface is waterproofed, thereby creating conditions for subsequent decoration.

Claims

1. A track panel well prefabricated plate sealing device, characterized in that, The utility model relates to a tunnel middle plate (1) is arranged in the inside side of tunnel (2), and the inside bottom end surface of tunnel (2) is provided with the partition wall (3) in the middle side, and the inside bottom end surface of tunnel (2) is arranged with the scaffold (4) on both sides of partition wall (3); the track hoisting well mouth of tunnel middle plate (1) is placed with prefabricated middle plate (5) in the even shape, and one reinforcing steel bar (7) is inserted in the upper portion of both sides of prefabricated middle plate (5); the partition wall (3) is provided with sealing mechanism (6) on both sides of upper end, and the sealing mechanism (6) comprises steel form (601), connecting rod (602) and angle steel (603), the number of steel form (601) is two, and eight connecting rods (602) are inserted in the even shape on two steel forms (601), and one angle steel (603) is welded on the upper end of opposite face of two steel forms (601). The utility model relates to a tunnel middle plate (1) is arranged in the inside side of tunnel (2), and the inside bottom end surface of tunnel (2) is provided with the partition wall (3) in the middle side, and the inside bottom end surface of tunnel (2) is arranged with the scaffold (4) on both sides of partition wall (3); the track hoisting well mouth of tunnel middle plate (1) is placed with prefabricated middle plate (5) in the even shape, and one reinforcing steel bar (7) is inserted in the upper portion of both sides of prefabricated middle plate (5); the partition wall (3) is provided with sealing mechanism (6) on both sides of upper end, and the sealing mechanism (6) comprises steel form (601), connecting rod (602) and angle steel (603), the number of steel form (601) is two, and eight connecting rods (602) are inserted in the even shape on two steel forms (601), and one angle steel (603) is welded on the upper end of opposite face of two steel forms (601). The utility model relates to a tunnel middle plate (1) is arranged in the inside side of tunnel (2), and the inside bottom end surface of tunnel (2) is provided with the partition wall (3) in the middle side, and the inside bottom end surface of tunnel (2) is arranged with the scaffold (4) on both sides of partition wall (3); the track hoisting well mouth of tunnel middle plate (1) is placed with prefabricated middle plate (5) in the even shape, and one reinforcing steel bar (7) is inserted in the upper portion of both sides of prefabricated middle plate (5); the partition wall (3) is provided with sealing mechanism (6) on both sides of upper end, and the sealing mechanism (6) comprises steel form (601), connecting rod (602) and angle steel (603), the number of steel form (601) is two, and eight connecting rods (602) are inserted in the even shape on two steel forms (601), and one angle steel (603) is welded on the upper end of opposite face of two steel forms (601). The utility model relates to a tunnel middle plate (1) is arranged in the inside side of tunnel (2), and the inside bottom end surface of tunnel (2) is provided with the partition wall (3) in the middle side, and the inside bottom end surface of tunnel (2) is arranged with the scaffold (4) on both sides of partition wall (3); the track hoisting well mouth of tunnel middle plate (1) is placed with prefabricated middle plate (5) in the even shape, and one reinforcing steel bar (7) is inserted in the upper portion of both sides of prefabricated middle plate (5); the partition wall (3) is provided with sealing mechanism (6) on both sides of upper end, and the sealing mechanism (6) comprises steel form (601), connecting rod (602) and angle steel (603), the number of steel form (601) is two, and eight connecting rods (602) are inserted in the even shape on two steel forms (601), and one angle steel (603) is welded on the upper end of opposite face of two steel forms (601). The utility model relates to a tunnel middle plate (1) is arranged in the inside side of tunnel (2), and the inside bottom end surface of tunnel (2) is provided with the partition wall (3) in the middle side, and the inside bottom end surface of tunnel (2) is arranged with the scaffold (4) on both sides of partition wall (3); the track hoisting well mouth of tunnel middle plate (1) is placed with prefabricated middle plate (5) in the even shape, and one reinforcing steel bar (7) is inserted in the upper portion of both sides of prefabricated middle plate (5); the partition wall (3) is provided with sealing mechanism (6) on both sides of upper end, and the sealing mechanism (6) comprises steel form (601), connecting rod (602) and angle steel (603), the number of steel form (601) is two, and eight connecting rods (602) are inserted in the even shape on two steel forms (601), and one angle steel (603) is welded on the upper end of opposite face of two steel forms (601). The utility model relates to a tunnel middle plate (1) is arranged in the inside side of tunnel (2), and the inside bottom end surface of tunnel (2) is provided with the partition wall (3) in the middle side, and the inside bottom end surface of tunnel (2) is arranged with the scaffold (4) on both sides of partition wall (3); the track hoisting well mouth of tunnel middle plate (1) is placed with prefabricated middle plate (5) in the even shape, and one reinforcing steel bar (7) is inserted in the upper portion of both sides of prefabricated middle plate (5); the partition wall (3) is provided with sealing mechanism (6) on both sides of upper end, and the sealing mechanism (6) comprises steel form (601), connecting rod (602) and angle steel (603), the number of steel form (601) is two, and eight connecting rods (602) are inserted in the even shape on two steel forms (601), and one angle steel (603) is welded on the upper end of opposite face of two steel forms (601). When the sealing mechanism (6) is in the sealed state, two angle steels (603) are respectively welded on the bottom end surface of the two embedded steel plates (504) at the bottom of prefabricated middle plate (5).

2. The track panel well precast panel plugging device according to claim 1, characterized in that: ​ 3. The track foundation well precast panel sealing device of claim 1, wherein: ​ 4. The track foundation pit prefabricated plate sealing device according to claim 2, characterized in that: ​

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