A device for blocking ballast and intercepting water under a railway bridge

Abstract

The present invention discloses a device for blocking ballast and intercepting water under a railway bridge, which comprises a device body arranged on both sides of the railway bridge in the transverse direction of the bridge. The device body includes two groups of pipe column structures, a tray structure, a triangular truss and a ballast blocking net structure. The two groups of pipe column structures are respectively fixedly connected to the two side walls of the U-shaped groove of the underpass road. The tray structure includes a tray and a drainage structure. The tray extends along the longitudinal direction of the railway bridge, and the two ends of the tray are respectively fixedly connected to the two groups of pipe column structures. The drainage structure drains the water on the railway bridge to the transverse sides of the underpass road. The triangular truss extends along the longitudinal direction of the railway bridge, and the triangular truss is fixedly connected to the tray. The ballast blocking net structure extends along the longitudinal direction of the railway bridge, and the ballast blocking net structure is fixedly connected to the triangular truss. The present invention effectively solves the problems of drainage of the railway bridge in the underpass highway section and addition of a ballast blocking net, replaces the method of reconstructing the structure of the railway bridge itself, and has the advantages of long service life, easy maintenance, short construction period, etc.

Description

Technical Field

[0001] The present invention relates to railway bridge technology, and particularly to a device for blocking ballast and intercepting water under a railway bridge. Background Art

[0002] In recent years, with the rapid development of railways and highways in China, the intersection of highways and railways has become inevitable. Among China's railways, the proportion of bridges is relatively large. For new highway projects passing under existing railway bridges, it will become the norm for new highways to intersect with existing railways.

[0003] According to relevant regulations, in the project of a highway or urban road passing under a railway, in order to ensure the safety of vehicles under the bridge, it is necessary to block the water discharge holes of the railway bridge. And a ballast blocking net is added on the railway bridge to prevent the falling of railway ballast from affecting the driving safety of vehicles under the bridge. The railings of existing railway bridges are often old, and when designing railway railings, the load of the ballast blocking net is not considered, and its structure is relatively weak, which brings difficulties to the implementation of the project. At the same time, blocking the water discharge holes of the railway bridge increases the drainage difficulty of the railway bridge, has a long construction period, and seriously affects railway operation. The above methods have certain adverse effects on the structure of the railway bridge and affect the normal operation of the railway for a long time.

[0004] Therefore, at present, it is necessary to develop a technology that can effectively solve the problems of drainage of railway bridges at the underpass road and adding a ballast blocking net, and ensure the driving safety of highway vehicles under the railway bridge. At the same time, this technology has the advantages of little impact on the structure of the railway bridge, long service life, easy maintenance, short construction period, etc., and can be widely applied. Summary of the Invention

[0005] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a device for blocking ballast and intercepting water under a railway bridge. As an accessory structure of the railway bridge, it can be applied to the location where a new highway project passes under an existing railway bridge, effectively solve the problems of drainage of the railway bridge in the underpass highway section and adding a ballast blocking net, and replace the method of reconstructing the structure of the railway bridge itself. At the same time, the device for blocking ballast and intercepting water under a railway bridge of the present invention has the advantages of long service life, easy maintenance, short construction period, etc., which is conducive to wide promotion and application and has great significance for production applications.

[0006] The technical solution adopted by the present invention is: a device for blocking ballast and intercepting water under a railway bridge, the ballast blocking and water intercepting device is arranged at the location where a highway project passes under a railway bridge, and includes device bodies arranged on both sides of the railway bridge in the transverse direction of the bridge. The device body includes:

[0007] Two groups of pipe column structures, and the two groups of pipe column structures are respectively fixedly connected to the side walls of the U-shaped groove of the underpass road;

[0008] Tray structure, the tray structure includes a tray and a drainage structure, the tray extends along the longitudinal direction of the railway bridge, and both ends of the tray are fixedly connected to the two groups of tubular column structures respectively; the drainage structure drains the water on the railway bridge to the lateral sides of the underpass road;

[0009] Triangular truss, the triangular truss extends along the longitudinal direction of the railway bridge, and the triangular truss is fixedly connected to the tray; and,

[0010] Ballast retaining net structure, the ballast retaining net structure extends along the longitudinal direction of the railway bridge, and the ballast retaining net structure is fixedly connected to the triangular truss.

[0011] Furthermore, each group of tubular column structures includes:

[0012] Two vertical poles arranged at intervals along the line direction of the underpass road, the top end of the vertical pole is fixedly connected to the tray, and the bottom end is fixedly connected to the side wall of the U-shaped groove of the underpass road; and

[0013] A plurality of cross bars arranged at intervals in the vertical direction and provided between the two vertical poles.

[0014] Furthermore, each vertical pole is composed of multiple vertical pole monomers, and adjacent two vertical pole monomers are connected to each other by flanges.

[0015] Furthermore, a chassis is provided at the bottom end of each vertical pole, anchor bars are fixedly connected to the chassis, and the vertical pole is fixedly connected to the side wall of the U-shaped groove of the underpass road through the anchor bars.

[0016] Furthermore, the bottom surface of the tray is composed of a plurality of support cross beams arranged at intervals along the longitudinal direction of the railway bridge and a first ballast retaining net fixedly connected to the bottom surface of the support cross beams.

[0017] Furthermore, the drainage structure includes:

[0018] Drainage cross pipe, the drainage cross pipe extends along the longitudinal direction of the railway bridge, and both ends of the drainage cross pipe are respectively located on the lateral sides of the underpass road; and,

[0019] Drainage vertical pipe, the top end of the drainage vertical pipe is located below the water discharge hole of the railway bridge, and the bottom end is communicated with the drainage cross pipe.

[0020] Furthermore, the triangular truss includes:

[0021] Three chord members extending along the longitudinal direction of the railway bridge, one of the three chord members is used to connect the ballast retaining net structure and is the top chord member, and the remaining two chord members of the three chord members are used to connect the tray and are the bottom chord members;

[0022] A plurality of triangular support frames arranged at intervals along the longitudinal direction of the railway bridge. Each triangular support frame includes two vertical web members and one horizontal bottom member. The vertical web members connect the top chord member and the bottom chord member, and the horizontal bottom member connects the two bottom chord members; and,

[0023] A plurality of diagonal web members. The diagonal web members are arranged on both side surfaces of the triangular truss and are arranged at an angle with the chord members; one end of each diagonal web member is connected to the top chord member, and the other end is connected to the bottom chord member. Moreover, the connection points of the diagonal web members and the chord members are the connection points of the triangular support frames and the chord members.

[0024] Furthermore, sealing plates are provided on both end faces of each chord member.

[0025] Furthermore, the ballast retaining net structure includes:

[0026] A plurality of columns arranged at intervals along the longitudinal direction of the railway bridge. The bottom end of each column is fixedly connected to the triangular truss; and,

[0027] A second ballast retaining net arranged between two adjacent columns.

[0028] Furthermore, the columns and the second ballast retaining net are connected by hoop fasteners.

[0029] The beneficial effects of the present invention are as follows: The present invention creatively proposes a new type of ballast retaining and water intercepting device under a railway bridge. Compared with the prior art, the existing bridge is not modified, and the structure of the existing bridge itself is not affected, effectively solving the problems of drainage of the railway bridge in the underpass highway section and adding a ballast retaining net. At the same time, the structure is entirely composed of standard steel members, which can be manufactured standardly and is convenient for construction. The construction period of this structure is short, and the normal operation of the railway is less affected, which is conducive to wide promotion and application, and has great practical significance and economic value in production. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 : Elevation structure schematic diagram of the ballast retaining and water intercepting device under the railway bridge of the present invention;

[0031] Figure 2 : Cross-section structure schematic diagram of the ballast retaining and water intercepting device under the railway bridge of the present invention;

[0032] Figure 3 : Elevation structure schematic diagram of the ballast retaining net structure of the present invention;

[0033] Figure 4 : Elevation structure schematic diagram of the triangular truss of the present invention;

[0034] Figure 5: Schematic cross-sectional structure diagram of the tray structure of the present invention;

[0035] Figure 6 : Schematic elevation structure diagram of the pipe column structure of the present invention;

[0036] Figure 7 : Relationship diagram of the ballast blocking and water intercepting device under the railway bridge and the railway bridge of the present invention.

[0037] Annotation of the attached drawings:

[0038] Ⅰ - U-shaped groove of the underpass road;

[0039] 1 - Tray; 2 - Vertical pole;

[0040] 3 - Cross bar; 4 - Flange;

[0041] 5 - Chassis; 6 - Anchor reinforcement;

[0042] 7 - First ballast blocking net; 8 - Drainage cross pipe;

[0043] 9 - Drainage vertical pipe; 10 - Top chord;

[0044] 11 - Bottom chord; 12 - Vertical web member;

[0045] 13 - Transverse bottom bar; 14 - Diagonal web member;

[0046] 15 - Sealing plate; 16 - Column;

[0047] 17 - Second ballast blocking net; 18 - Hoop;

[0048] 19 - Support cross beam. Detailed implementation manner

[0049] In order to further understand the content, characteristics and effects of the present invention, the following embodiments are exemplified and described in detail in conjunction with the attached drawings:

[0050] As shown in the attached Figures 1 to 7 As shown, a ballast blocking and water intercepting device under the railway bridge, the ballast blocking and water intercepting device is mainly applied to both sides of the railway bridge in the transverse direction of the bridge, at the bridge hole where the underpass road crosses the existing railway bridge, and includes a device body arranged on both sides of the railway bridge in the transverse direction of the bridge. The device body mainly consists of four parts: a ballast blocking net structure, a triangular truss, a tray structure, and a pipe column structure.

[0051] (1) Ballast blocking net structure

[0052] The ballast retaining net structure extends along the longitudinal direction of the railway bridge, and the ballast retaining net structure is connected to the triangular truss by welding. The ballast retaining net structure consists of three types of components: the column 16, the second ballast retaining net 17, and the hoop 18. A plurality of columns 16 are arranged at intervals along the longitudinal direction of the railway bridge, and the bottom end of each column 16 is welded to the triangular truss; the second ballast retaining net 17 is arranged between two adjacent columns 16, and the column 16 and the second ballast retaining net 17 are connected by the hoop 18.

[0053] The column 16 plays a role of fixed support in the ballast retaining net structure; the second ballast retaining net 17 prevents the ballast on the railway subgrade of the railway bridge from splashing and falling; the hoop 18 connects the column 16 and the second ballast retaining net 17, so that the three parts form a whole.

[0054] (2) Triangular truss

[0055] The triangular truss extends along the longitudinal direction of the railway bridge, and the triangular truss is connected to the tray 1 in the tray structure by bolt connection. The triangular truss consists of four types of components: the chord, the triangular support frame, the diagonal web member 14, and the closure plate 15. There are three chords, and all three chords extend along the longitudinal direction of the railway bridge; one of the three chords is used to connect the ballast retaining net structure, and this chord is set as the top chord 10, and the other two chords of the three chords are used to connect the tray 1, and these two chords are set as the bottom chords 11. A plurality of triangular support frames are arranged at intervals along the longitudinal direction of the railway bridge, and each triangular support frame includes two vertical web members 12 and a horizontal bottom bar 13. The vertical web member 12 connects the top chord 10 and the bottom chord 11, and the horizontal bottom bar 13 connects the two bottom chords 11. A plurality of diagonal web members 14 are provided, and are all arranged on both side surfaces of the triangular truss and are arranged at an angle with the chords; one end of each diagonal web member 14 is connected to the top chord 10 and the other end is connected to the bottom chord 11, and the connection point of the diagonal web member 14 and the chord is the connection point of the triangular support frame and the chord. The closure plate 15 is arranged at the end face of each chord.

[0056] The chord plays a role of bearing the load of the ballast retaining structure and transmitting the load to the steel tray structure; the vertical web member 12 and the diagonal web member 14 transmit the load borne by the top chord 10 to the bottom chord 11; the closure plate 15 seals the port of the chord to prevent water from entering and corroding the steel pipe. The vertical web member 12, the horizontal bottom bar 13, the diagonal web member 14, and the closure plate 15 are all connected to the chord by welding.

[0057] (3) Tray structure

[0058] The tray structure is composed of two types of components: tray 1 and the drainage structure. Tray 1 extends along the longitudinal direction of the railway bridge. The two ends of tray 1 are respectively fixedly connected to two groups of tubular column structures by welding; the bottom surface of tray 1 consists of multiple support crossbeams 19 arranged at intervals along the longitudinal direction of the railway bridge and a first ballast retaining net 7 fixedly connected to the bottom surface of the support crossbeams 19. Among them, the support crossbeams 19 can be I-beams. The drainage structure is used to drain the water on the railway bridge to the lateral sides of the underpass road, including a drainage cross-pipe 8 and a drainage vertical pipe 9. The drainage cross-pipe 8 extends along the longitudinal direction of the railway bridge, and the two ends of the drainage cross-pipe 8 are respectively located on the lateral sides of the underpass road; the top end of the drainage vertical pipe 9 is located below the water discharge hole of the railway bridge, and the bottom end is connected to the drainage cross-pipe 8.

[0059] Tray 1 bears the loads of the upper triangular truss, the drainage vertical pipe 9, and the drainage cross-pipe 8, and transfers the loads to the tubular column structure; the first ballast retaining net 7 prevents the ballast on the railway subgrade on the railway bridge from splashing and falling; the drainage vertical pipe 9 drains the accumulated water on the railway bridge to the drainage cross-pipe 8; the drainage cross-pipe 8 drains the accumulated water discharged into it to both sides of the underpass road. The first ballast retaining net 7, the drainage cross-pipe 8, and the drainage vertical pipe 9 are all connected to tray 1 by bolts.

[0060] (4) Tubular column structure

[0061] There are two groups of tubular column structures, which are respectively fixedly connected to the two side walls of the underpass road U-groove I. Each group of tubular column structures is composed of four types of components: vertical poles 2, horizontal bars 3, chassis 5, and anchor reinforcement bars 6. Two vertical poles 2 are arranged at intervals along the line direction of the underpass road. Each vertical pole 2 can be composed of multiple vertical pole monomers, and adjacent vertical pole monomers are connected to each other by flanges 4; the top end of the vertical pole 2 is connected to tray 1 by welding, the bottom end of the vertical pole 2 is provided with a chassis 5, and anchor reinforcement bars 6 are fixedly connected to the chassis 5. The bottom end of the vertical pole 2 is fixedly connected to the side wall of the underpass road U-groove I through the anchor reinforcement bars 6. The horizontal bars 3 are arranged between the two vertical poles 2, and multiple horizontal bars 3 are arranged at intervals in the vertical direction.

[0062] The vertical pole 2 transfers the load transmitted by the tray structure to the foundation and provides a supporting effect for the entire device body; the horizontal bar 3 connects the two juxtaposed vertical poles 2 into a whole; the flange 4 is used to connect two sections of vertical pole monomers; the anchor reinforcement bars 6 mainly increase the connection strength between the vertical pole 2 and the foundation.

[0063] In the present invention, each component in the ballast retaining net structure, the triangular truss, the tray structure, and the tubular column structure is made of standard steel components. Among them, the first ballast retaining net 7 and the second ballast retaining net 17 are both perforated steel plates.

[0064] During the design, first determine the span of the device body of the present invention according to the width of the underpass road; secondly, determine the span and dimensions of the triangular truss according to the span; then, determine the dimensions of the remaining members and cut and manufacture them in the factory; finally, carry out the assembly construction in the order of the pipe column structure, the tray structure, the triangular truss, and the ballast retaining net structure.

[0065] The present invention can effectively solve the problems of drainage of railway bridges in the underpass highway section and increasing the ballast retaining net by utilizing the space on both sides of the railway bridge without reconstructing the existing railway bridge. At the same time, this solution is a permanent structure, mainly composed of section steel and seamless steel pipes, and has the advantages of easy maintenance, short construction period, and low cost.

[0066] Although the preferred embodiments of the present invention have been described above in conjunction with the accompanying drawings, the present invention is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not restrictive. Under the inspiration of the present invention, those of ordinary skill in the art can also make many forms without departing from the spirit and scope protected by the claims of the present invention, and these all fall within the protection scope of the present invention.

Claims

1. A ballast retaining and water-cutting device under a railway bridge, the ballast retaining and water-cutting device is arranged at a place where a highway project passes under a railway bridge, and comprises a device body arranged on both sides of the railway bridge in a transverse direction. It is characterized in that The device body comprises: Two sets of pipe column structures, the two sets of pipe column structures are respectively fixedly connected to the two side walls of the U-groove (Ⅰ) of the underpass; A tray structure, the tray structure comprising a tray (1) and a drainage structure, the tray (1) extending along the railway bridge in the direction of the bridge, the two ends of the tray (1) being respectively fixedly connected to the two groups of pipe column structures; the drainage structure drains water on the railway bridge to the lateral sides of the underpass road; A triangular truss, the triangular truss extending along the railway bridge in the direction of the bridge, the triangular truss being fixedly connected to the tray (1); and A ballast retaining net structure, the ballast retaining net structure extending along the railway bridge in the direction of the bridge, and the ballast retaining net structure fixedly connected to the triangular truss; in, Each set of pipe string structure includes: Two vertical poles (2) are arranged at intervals along the route direction of the underpass, the top ends of the vertical poles (2) are fixedly connected to the tray (1), and the bottom ends are fixedly connected to the side walls of the U-trough (Ⅰ) of the underpass; and A plurality of cross bars (3) disposed between the two vertical bars (2) and arranged at intervals in the vertical direction; The bottom surface of the tray (1) is composed of a plurality of supporting beams (19) arranged at intervals along the longitudinal direction of the railway bridge and a first ballast retaining net (7) fixedly connected to the bottom surface of the supporting beams (19).

2. The ballast retaining and water-cutting device under a railway bridge according to claim 1, It is characterized in that Each of the vertical poles (2) is composed of a plurality of vertical pole monomers, and two adjacent vertical pole monomers are connected to each other by a flange (4).

3. The ballast retaining and water cutting device under a railway bridge according to claim 1, It is characterized in that A chassis (5) is provided at the bottom end of each of the vertical poles (2), and an anchoring steel bar (6) is fixedly connected to the chassis (5). The vertical pole (2) is fixedly connected to the side wall of the U-channel (Ⅰ) of the underpass road via the anchoring steel bar (6).

4. The ballast retaining and water-cutting device under a railway bridge according to claim 1, It is characterized in that The drainage structure comprises: A drainage transverse pipe (8), the drainage transverse pipe (8) extending along the railway bridge in the direction of the bridge, and the two ends of the drainage transverse pipe (8) are respectively located on the lateral sides of the underpass road; and A drainage vertical pipe (9), wherein the top end of the drainage vertical pipe (9) is located below the drainage hole of the railway bridge, and the bottom end is connected to the drainage horizontal pipe (8).

5. The ballast retaining and water cutting device under a railway bridge according to claim 1, It is characterized in that The triangular truss comprises: Three chords extending along the railway bridge in the bridge direction, one of the three chords is used to connect the ballast net structure and is a top chord (10), and the other two of the three chords are used to connect the tray (1) and are bottom chords (11); A plurality of triangular support frames arranged at intervals along the longitudinal direction of the railway bridge. Each triangular support frame includes two vertical web members (12) and one horizontal bottom member (13). The vertical web members (12) connect the top chord member (10) and the bottom chord member (11), and the horizontal bottom member (13) connects the two bottom chord members (11); and, A plurality of diagonal web members (14). The diagonal web members (14) are arranged on both side surfaces of the triangular truss and are arranged at an angle with the chord members. One end of each diagonal web member (14) is connected to the top chord member (10), and the other end is connected to the bottom chord member (11). Moreover, the connection points of the diagonal web members (14) and the chord members are the connection points of the triangular support frames and the chord members.

6. The under-railway-bridge ballast retaining and water intercepting device according to claim 5, characterized in that, Sealing plates (15) are provided on both end faces of each chord member.

7. The under-railway-bridge ballast retaining and water intercepting device according to claim 1, characterized in that, The ballast retaining net structure includes: A plurality of columns (16) arranged at intervals along the longitudinal direction of the railway bridge. The bottom end of each column (16) is fixedly connected to the triangular truss; and, A second ballast retaining net (17) provided between two adjacent columns (16).

8. The under-railway-bridge ballast retaining and water intercepting device according to claim 7, characterized in that, The column (16) and the second ballast retaining net (17) are connected by a hoop (18).

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