CN217419188U

CN217419188U - Anti-sedimentation structure of bridge head pavement attachment plate

Info

Publication number: CN217419188U
Application number: CN202221036810.9U
Authority: CN
Inventors: 赖洪春
Original assignee: Zhonggu International Engineering Consulting Co ltd
Current assignee: Zhonggu International Engineering Consulting Co ltd
Priority date: 2022-05-04
Filing date: 2022-05-04
Publication date: 2022-09-13
Anticipated expiration: 2032-05-04

Abstract

The utility model discloses a bridge abutment pavement attachment strap prevent subsiding structure, including road surface ground, abutment and bridgehead bridge, the abutment sets up in the left side of road surface ground, and the abutment hugs closely with the road surface ground, linking concave station has all been seted up to the both sides of abutment, and the bridge abutment bridge overlap joint in the left linking concave station of abutment and fixed, the backfill hole that is the notch cuttype matrix is seted up in the left side at road surface ground top, and has pour backfill gravel material in the backfill hole. The technology is an optimized design, no difficulty exists in the construction process, after the pavement foundation at the position of the butt strap body is compacted, the concrete stand columns manufactured in advance are driven into backfill soil according to the design positions, and after the design elevation is reached, butt strap reinforcing steel bars are bound, butt strap molds are installed, and butt strap concrete is poured; during the period, the bearing upright post is kept vertical, and the effective connection between the bearing upright post and the butt strap body is ensured by paying attention to the soil penetration height.

Description

Anti-settlement structure of bridge head pavement attachment slab

Technical Field

The utility model relates to a road and bridge construction technical field specifically is a bridge bridgehead road surface attachment strap prevent subsiding structure.

Background

At present, in the bridge engineering design industry, the butt strap is an indispensable component in a bridge structure, because the construction process is simple and quick, and the construction position is good, the construction quality problem of the culvert is caused just by the convenience and quickness of the construction of the butt strap; the main function of the butt strap is to connect the bridge and the roadbed, and the size of the butt strap is slightly different according to the difference of the width of the bridge, the difference of the load grade and the difference of the road grade; at present, the vehicle demand is increasing day by day, and some phenomena of overloading and overspeed exist, the "bumping" and uneven settlement at the bridge head become inevitable problems.

On-site discovery of bridge heads, a plurality of bridge abutments have 'vehicle jumping', air separation and cracking caused by uneven settlement, even if surface treatment can be carried out on the defects, water flows into the bridge abutments to cause roadbed defects, and the roadbed defects are reflected to the surfaces of driveways in a short period, so that the service life is greatly reduced, the roadbed and other structures are damaged, and unnecessary waste is further caused; this scheme is a whole atress problem of major consideration, and whether the butt strap can use the key for a long time and lie in the butt strap whether stable of roadbed down, because butt strap one side connection abutment, the road bed is connected to one side, and the abutment is mostly the pile foundation, does not have the settlement volume nearly to little medium-sized bridge, but the road bed subsides and can not avoid, so lead to one side rigidity one side flexibility, cause the fracture back rivers to get into inside very easily.

Therefore, it is necessary to design an anti-settling structure of a bridge end pavement slab so as to solve the problems mentioned above.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a bridge bridgehead road surface attachment strap prevent subsiding structure to solve the problem that how to solve the attachment strap and solve inhomogeneous settlement in road operation, be close to road bed one side at the attachment strap and set up the stand, lean on the stand uninstallation, improve the road bed compactness.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a bridge bridgehead pavement attachment strap prevent subsiding structure, includes road surface foundation, abutment and bridgehead bridge, the abutment sets up in the left side of road surface foundation, and the abutment hugs closely with road surface foundation, the both sides of abutment have all been seted up and have been linked up the concave station, and bridgehead bridge overlap joint is fixed in the left linking concave station of abutment, the backfill hole that is the notch cuttype matrix is seted up in the left side at road surface foundation top, and has pour backfill gravel material in the backfill hole, backfill gravel material fills up whole backfill hole and forms a notch cuttype matrix and protects and carry the structure, the top of backfill gravel material is connected with the attachment strap body, and the left end overlap joint of attachment strap body is fixed in the linking concave station on abutment right side.

Preferably, the top surfaces of the butt strap body, the abutment, the bridge head bridge and the road surface foundation are flush.

Preferably, the bottom of the access board body is connected with a bearing upright post, the bearing upright post is vertically inserted into the backfill gravel material and is fixed, and the bearing upright post can be uniformly distributed in a plurality of groups at equal intervals.

Preferably, the bottom of the strap body is provided with an embedded directional groove, the top end of the bearing upright post is fixedly connected with a step convex edge, and the step convex edge is connected in the embedded directional groove in a limiting manner.

Preferably, the road surface foundation comprises embankment, bed course and basic unit from supreme down in proper order, and road surface foundation is effectively connected with the attachment strap body again after the compaction, it is the concrete stand to bear the weight of the stand.

Preferably, the top surfaces of the butt strap body, the abutment, the bridge head bridge and the road surface foundation are poured with surface layers in a seamless mode.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) the anti-settlement structure of the bridge head pavement butt strap is an optimized design, difficulty is eliminated in the construction process, after the pavement foundation at the butt strap body is compacted, a concrete upright post manufactured in advance is driven into backfill soil according to a design position, and after the design elevation is reached, butt strap steel bars are bound, a butt strap mould is installed, and butt strap concrete is poured; during the period, the bearing upright post is required to be kept vertical, and the effective connection between the bearing upright post and the butt strap body is ensured by paying attention to the soil penetration height.

(2) The anti-settlement structure of the bridge head pavement attachment strap can be used for arranging the ground ring beam at the bottom of the body of the side attachment strap of the roadbed and integrally pouring concrete under the body of the attachment strap, so that the bearing capacity can be improved, and the uneven settlement of the roadbed can be reduced.

(3) This bridge bridgehead road surface attachment strap prevent subsiding structure, through bearing the common atress of stand and attachment strap body, improve the rigidity of road bed one side, reduce inhomogeneous settlement through this kind of mode, increase the life of attachment strap body.

Drawings

FIG. 1 is a sectional view of the overall structure of the present invention;

FIG. 2 is an enlarged view of part A of the structure of FIG. 1;

fig. 3 is a perspective view of the connection between the strap body and the bearing column of the present invention.

In the figure: 100. an embankment; 101. a cushion layer; 102. a base layer; 103. a surface layer; 200. an abutment; 300. a bridgehead bridge; 400. back-filling sand gravel; 500. a strap body; 600. a load bearing column; 700. embedding the orientation slot; 800. and (6) a step bead.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides the following embodiments:

example one

The utility model provides a bridge abutment bridge surface attachment strap prevent subsiding structure, including the road surface ground, abutment 200 and bridgehead bridge 300, abutment 200 sets up in the left side of road surface ground, and abutment 200 hugs closely with the road surface ground, the linking concave station has all been seted up to abutment 200's both sides, and abutment bridge 300 overlaps in the left linking concave station of abutment 200 and fixes, the backfill hole that is the notch cuttype matrix is seted up to the left side at road surface ground top, and pour backfill gravel material 400 in the backfill hole, backfill gravel material 400 fills up whole backfill hole and forms a notch cuttype matrix and protects and carry the structure, the top of backfill gravel material 400 is connected with attachment strap body 500, and the left end overlap joint of attachment strap body 500 is in the linking concave station on bridge 200 right side and fixes.

Further, the bottom of the strap body 500 is connected with a bearing upright column 600, and the bearing upright column 600 is vertically inserted into the backfill gravel material 400 for fixing, and the bearing upright columns 600 can be distributed uniformly in a plurality of groups at equal intervals.

Further, the bottom of the strap body 500 is provided with an embedded directional groove 700, the top end of the bearing upright column 600 is fixedly connected with a step convex edge, and the step convex edge is connected in the embedded directional groove 700 in a limiting manner.

The specific implementation manner of this embodiment is: the technology is an optimized design, no difficulty exists in the construction process, after the pavement foundation at the position of the butt strap body 500 is compacted, the concrete upright post manufactured in advance is driven into backfill soil according to the design position, and after the design elevation is reached, butt strap steel bars are bound, a butt strap mould is installed, and butt strap concrete is poured; during the period, the bearing upright column 600 is required to be kept vertical, and the bearing upright column 600 is ensured to be effectively connected with the butt strap body 500 by taking the soil penetration height into consideration;

through bearing stand 600 and the common atress of attachment strap body 500, improve the rigidity of road surface ground one side, reduce the differential settlement through this kind of mode, increase attachment strap body 500's life.

Example two

The utility model provides a bridge abutment bridge surface attachment strap prevent subsiding structure, including the road surface ground, abutment 200 and bridgehead bridge 300, abutment 200 sets up in the left side of road surface ground, and abutment 200 hugs closely with the road surface ground, the linking concave station has all been seted up to abutment 200's both sides, and abutment bridge 300 overlaps in the left linking concave station of abutment 200 and fixes, the backfill hole that is the notch cuttype matrix is seted up to the left side at road surface ground top, and pour backfill gravel material 400 in the backfill hole, backfill gravel material 400 fills up whole backfill hole and forms a notch cuttype matrix and protects and carry the structure, the top of backfill gravel material 400 is connected with attachment strap body 500, and the left end overlap joint of attachment strap body 500 is in the linking concave station on bridge 200 right side and fixes. The bottom of the strap body 500 is connected with a bearing upright column 600, and the bearing upright column 600 is vertically inserted into the backfill gravel material 400 for fixation, and the bearing upright columns 600 can be distributed uniformly in a plurality of groups at equal intervals. The bottom of the strap body 500 is provided with an embedded directional groove 700, the top end of the bearing upright column 600 is fixedly connected with a step convex edge, and the step convex edge is connected in the embedded directional groove 700 in a limiting manner.

The difference from the first embodiment is that the following contents are also included:

the top surfaces of the butt strap body 500, the abutment 200, the bridge head 300 and the road surface foundation are flush.

Further, the road surface foundation comprises the embankment 100, the cushion layer 101 and the base layer 102 from bottom to top in sequence, the road surface foundation is effectively connected with the butt strap body 500 after being compacted, the bearing upright columns 600 are concrete upright columns, and the pressure resistance of the road surface foundation is improved.

Further, the top surfaces of the butt strap body 500, the abutment 200, the bridge head 300 and the road surface foundation are poured with the surface layer 103 in a seamless mode, and therefore bridge leveling is guaranteed.

In this embodiment: the foundation ring beam can be arranged at the bottom of the side lapping plate body 500 of the roadbed, concrete is integrally poured under the lapping plate body 500, the bearing capacity can be improved, and therefore the uneven settlement of the roadbed is reduced.

Those not described in detail in this specification are within the skill of the art.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a bridge bridgehead road surface attachment strap prevents subsiding structure which characterized in that: including road surface foundation, abutment (200) and bridgehead bridge (300), abutment (200) set up in the left side of road surface foundation, and abutment (200) hug closely with the road surface foundation, the link up concave station has all been seted up to the both sides of abutment (200), and abutment bridge (300) overlap joint in the left link up concave station of abutment (200) and fixed, the backfill hole that is the notch cuttype matrix is seted up in the left side at road surface foundation top, and has pour backfill grit material (400) in the backfill hole, backfill grit material (400) fill up whole backfill hole and form a notch cuttype matrix and protect and carry the structure, the top of backfill grit material (400) is connected with attachment slab body (500), and the left end overlap joint of attachment slab body (500) is fixed in the link up concave station on bridge (200) right side.

2. The anti-settling structure of the bridge pier pavement slab according to claim 1, wherein: the top surfaces of the butt strap body (500), the abutment (200), the bridge head bridge (300) and the road surface foundation are flush.

3. The anti-settling structure of the bridge pier pavement slab according to claim 1, wherein: the bottom of attachment strap body (500) is connected with bears stand (600), and bears the vertical back-filled gravel stone material (400) internal fixation that inserts of stand (600), it can be multiunit equidistance evenly distributed to bear stand (600).

4. The anti-settling structure of the bridge pier pavement slab according to claim 3, wherein: embedding orientation groove (700) have been seted up to the bottom of strap body (500), the top fixedly connected with step bead of bearing stand (600), and step bead is spacing to be connected in embedding orientation groove (700).

5. The anti-settling structure of the bridge pier pavement slab according to claim 4, wherein: the pavement foundation sequentially comprises an embankment (100), a cushion layer (101) and a base layer (102) from bottom to top, is compacted and then is effectively connected with the butt strap body (500), and the bearing upright columns (600) are concrete upright columns.

6. The anti-settling structure of the bridge pier pavement slab according to claim 2, wherein: and the top surfaces of the butt strap body (500), the abutment (200), the bridge head bridge (300) and the road surface foundation are poured with a surface layer (103) in a seamless mode.