CN215104618U

CN215104618U - Abutment structure

Info

Publication number: CN215104618U
Application number: CN202121253232.XU
Authority: CN
Inventors: 魏国
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-06-04
Filing date: 2021-06-04
Publication date: 2021-12-10
Anticipated expiration: 2031-06-04

Abstract

The utility model provides a bridge abutment structure, which comprises a bearing platform, a plurality of anchor rods and a main abutment body, wherein the plurality of anchor rods are implanted into the bedrock of a mountain body, and the upper ends of the plurality of anchor rods are implanted into the bearing platform so as to anchor the bearing platform and the bedrock mutually; the main abutment body is connected with the bearing platform in an integrated mode and used for supporting the bridge span and connecting the bridge span and the roadbed. When the abutment is built on the slope of the mountain and weathers the bedrock, the abutment is directly constructed on the bedrock through a plurality of anchor rods without excavating and piling, the overall structural strength structure of the abutment is guaranteed, and meanwhile, the construction amount can be effectively reduced and the transverse stability of the abutment is guaranteed. The problem of among the prior art build abutment on mountain slope and meet with the stroke basement rock and adopt the pile to construct of digging greatly, not only construction quantity is big and lead to the abutment back of the body filler to increase influence abutment structural stability is solved.

Description

Abutment structure

Technical Field

The utility model relates to a bridge construction field particularly, relates to an abutment structure.

Background

At present, when a bridge is built between canyons, abutment structures built on slope surfaces of mountain bodies on two sides need to bear the pressure in the vertical direction of a bridge span and the horizontal acting force of the bridge span in the running process of a vehicle. When the bridge abutment is constructed on the slope surface of a mountain, the mountain is usually subjected to medium stroke bedrock under many conditions, and the piling construction is generally carried out after the large excavation is carried out at the bedrock during the current construction; the construction of digging the pile greatly not only leads to the construction volume increase, and can lead to the abutment back of the body filler to increase, the abutment back of the body filler increase can further increase the abutment back of the body soil pressure that the abutment bore, and then lead to the abutment structure atress uneven, influence the stability of abutment structure.

SUMMERY OF THE UTILITY MODEL

A primary object of the utility model is to provide an abutment structure to at least, it meets to take to dig the pile greatly and construct to solve among the prior art to build the abutment on the mountain slope, and not only the construction volume is big and lead to the abutment back of the body filler to increase the problem that influences abutment structural stability.

In order to achieve the above object, the utility model provides an abutment structure, include: a bearing platform; the anchor rods are multiple, the lower ends of the anchor rods are implanted into the bedrock of the mountain body, and the upper ends of the anchor rods are implanted into the bearing platform to anchor the bearing platform and the bedrock mutually; the main abutment body is connected with the bearing platform in an integrated mode and used for supporting the bridge span and connecting the bridge span and the roadbed.

Further, many stock are the matrix along the horizontal direction and arrange.

Further, the distances between two anchor rods which are parallel to each other and adjacent to each other are equal.

Further, the length of many stock equals and the both ends of many stock correspond the parallel and level along the horizontal direction.

Further, the abutment structure further comprises: the bench back filler is filled in the space between the rear part of the main bench body and the lower part of the roadbed to support the roadbed.

Further, the main stage body includes: the front wall and the rear wall are adjacently arranged on the bearing platform along the direction from the bridge span to the roadbed and are integrally connected with the bearing platform; the top cap is arranged on the front wall and the rear wall and is integrally connected with the front wall and the rear wall; one end of the bridge span is arranged on the top cap, and one end of the roadbed is adjacent to the bridge span through the top cap.

The abutment structure applying the technical scheme of the utility model comprises a bearing platform, a plurality of anchor rods and a main abutment body, wherein the plurality of anchor rods are implanted into the bedrock of the mountain body, and the upper ends of the plurality of anchor rods are implanted into the bearing platform to anchor the bearing platform and the bedrock mutually; the main abutment body is connected with the bearing platform in an integrated mode and used for supporting the bridge span and connecting the bridge span and the roadbed. When the abutment is built on the slope of the mountain and weathers the bedrock, the abutment is directly constructed on the bedrock through a plurality of anchor rods without excavating and piling, the overall structural strength structure of the abutment is guaranteed, and meanwhile, the construction amount can be effectively reduced and the transverse stability of the abutment is guaranteed. The problem of among the prior art build abutment on mountain slope and meet with the stroke basement rock and adopt the pile to construct of digging greatly, not only construction quantity is big and lead to the abutment back of the body filler to increase influence abutment structural stability is solved.

Drawings

The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic view of an alternative abutment structure according to an embodiment of the present invention.

Wherein the figures include the following reference numerals:

10. a bearing platform; 20. an anchor rod; 30. a main stage body; 31. a front wall; 32. a rear wall; 33. a top cap; 40. bedrock; 50. a bridge span; 60. a roadbed; 70. and (5) filling the table back.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

According to the utility model discloses abutment structure, including cushion cap 10, stock 20 and main platform body 30, stock 20 is many, and the lower extreme of many stocks 20 is planted in the bed rock 40 of massif, and the upper end of many stocks 20 is planted in cushion cap 10 in order to anchor cushion cap 10 and bed rock 40 each other; the main deck body 30 is integrally connected with the cap 10, and the main deck body 30 serves to support the bridge span 50 and to connect the bridge span 50 with the roadbed 60. When the abutment is built on the slope of the mountain and meets the stroke basement rock 40, the large excavation and the piling are not needed, the bearing platform 10 construction is directly carried out on the basement rock 40 through the plurality of anchor rods 20, the overall structural strength structure of the abutment is guaranteed, and meanwhile, the construction amount can be effectively reduced and the transverse stability of the abutment is guaranteed. The problem of among the prior art build abutment on mountain slope and meet with well stroke metaplasia basement rock 40 and adopt the pile to construct of digging greatly, not only construction quantity is big and lead to the abutment back of the body filler to increase influence abutment structural stability is solved.

In particular, the anchor rods 20 are rebar lengths. In order to ensure that all positions of the bridge pier are stressed evenly, a plurality of anchor rods 20 are arranged in a matrix form along the horizontal direction; the multiple anchor rods 20 are parallel to each other and the distance between two adjacent anchor rods 20 is equal. Meanwhile, the lengths of the plurality of anchor rods 20 are equal and both ends of the plurality of anchor rods 20 are correspondingly flush in the horizontal direction, i.e., the implantation depths of all the anchor rods 20 in the bedrock 40 are the same.

Further, the main platform body 30 comprises a front wall 31, a rear wall 32 and a top cap 33, wherein the front wall 31 and the rear wall 32 are adjacently arranged on the bearing platform 10 along the direction from the bridge span 50 to the roadbed 60 and are integrally connected with the bearing platform 10, and the rear side wall of the rear wall 32 forms an inclined plane with a certain included angle with the vertical direction; the top cap 33 is provided on the front wall 31 and the rear wall 32 and integrally connected with the front wall 31 and the rear wall 32, the front side of the top cap 33 has a stepped structure, one end of the bridge span 50 is installed at the stepped structure of the front side of the top cap 33 to support the bridge span 50, the upper end of the rear side of the top cap 33 also has a stepped structure, and one end of the roadbed 60 extends to the stepped structure to be adjacent to the bridge span 50 through the top cap 33.

Further, the abutment structure further includes an abutment filler 70, and the abutment filler 70 is filled in a space between the rear of the main platform body 30 and the lower side of the roadbed 60 to support the roadbed 60; the back filling material 70 is compacted and abutted with the rear side wall of the rear wall 32 to generate transverse pressure on the main table body 30, and the rear side wall of the rear wall 32 is set to be of an inclined surface structure, so that part of transverse pressure can be offset, and the stress stability of the main table body 30 is ensured.

In the concrete construction of the abutment structure of the embodiment, a construction plane is firstly chiseled on the bedrock 40 of the mountain slope, then anchor holes are drilled on the plane of the bedrock 40 according to the preset matrix arrangement positions, and the depth of the anchor holes is determined according to the concrete construction requirements of the abutment structure. Inserting the cut anchor rods 20 into the anchor holes in sequence and injecting bar planting glue or concrete mortar for reinforcement; the upper half section of the anchor rod 20 is exposed outside the bedrock 40, and then the exposed part of the anchor rod 20 is continuously bound with a reinforcement cage structure and sequentially poured with the bearing platform 10 and the main platform body 30; then, the back side of the main platform body 30 is filled with the platform back filler 70, and finally, the construction of the bridge span 50 and the roadbed 60 is performed.

The anchor rod process arranged on the abutment structure of the embodiment obviously reduces the engineering quantity of the stroke bedrock in the excavation of a construction unit on the basis of ensuring the stress of the abutment structure, thereby reducing the engineering quantity of the abutment back filler 70 and further reducing the pressure of the abutment back filler 70 born by the abutment; in addition, the anchor rods 20 integrate the bearing platform 10 and the bedrock 40, significantly increasing the anti-skid stability of the abutment, and reducing the construction difficulty and the construction cost.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An abutment structure, comprising:

a bearing platform (10);

the anchor rods (20), the lower ends of the anchor rods (20) are implanted into a bedrock (40) of a mountain body, and the upper ends of the anchor rods (20) are implanted into the bearing platform (10) so as to anchor the bearing platform (10) and the bedrock (40) to each other;

a main platform body (30), wherein the main platform body (30) is integrally connected with the bearing platform (10), and the main platform body (30) is used for supporting the bridge span (50) and connecting the bridge span (50) and a roadbed (60).

2. The abutment structure according to claim 1, wherein a plurality of the anchor rods (20) are arranged in a matrix form in a horizontal direction.

3. The abutment structure according to claim 2, wherein the plurality of anchor rods (20) are parallel to each other and the interval between the adjacent two anchor rods (20) is equal.

4. The abutment structure according to claim 2, wherein the plurality of anchor rods (20) are equal in length and both ends of the plurality of anchor rods (20) are correspondingly flush in a horizontal direction.

5. The abutment structure of claim 1, further comprising:

and the table back filling material (70) is filled in a space between the rear part of the main table body (30) and the lower part of the roadbed (60) to support the roadbed (60).

6. The abutment structure according to claim 1, wherein the main abutment body (30) comprises:

a front wall (31) and a rear wall (32), wherein the front wall (31) and the rear wall (32) are adjacently arranged on the bearing platform (10) along the direction from the bridge span (50) to the roadbed (60) and are integrally connected with the bearing platform (10);

a top cap (33) provided on the front wall (31) and the rear wall (32) and integrally connected with the front wall (31) and the rear wall (32);

wherein one end of the bridge span (50) is mounted on the top cap (33), and one end of the roadbed (60) is mutually abutted with the bridge span (50) through the top cap (33).