CN215801576U

CN215801576U - Bridge pile foundation structure

Info

Publication number: CN215801576U
Application number: CN202121513944.0U
Authority: CN
Inventors: 陈冉; 陈晨; 陈辉; 崔迎; 张玉
Original assignee: Xuzhou Xinghui Construction Group Co ltd
Current assignee: Xuzhou Xinghui Construction Group Co ltd
Priority date: 2021-07-05
Filing date: 2021-07-05
Publication date: 2022-02-11
Anticipated expiration: 2031-07-05

Abstract

The utility model discloses a bridge pile foundation structure, which relates to the technical field of pile foundations and comprises a pile hole, a pile frame and a pile platform, wherein the pile frame extends into the pile hole and is filled with concrete to form a pile foundation, the pile platform is arranged at the top of the pile foundation, the pile frame comprises a main frame and a steel casing, the main frame is vertically arranged along the pile hole, the steel casing is arranged at the outer side of the main frame, the steel casing comprises a cylindrical steel casing body, a plurality of insertion ribs are vertically arranged at the top and the bottom of the casing body, a plurality of insertion holes are also arranged at the top and the bottom of the casing body, the number of the insertion holes and the number of the insertion ribs are the same, the insertion holes and the insertion ribs are sequentially staggered, the upper casing body and the lower casing body are connected by the insertion holes and the insertion ribs in an inserting manner, the plurality of the casing bodies are connected up and down to form a continuous steel casing, the bridge pile foundation structure is stable, the construction is convenient, the pile foundation has high strength, and the steel casing of the bridge structure adopts a combined structure, the continuous and uninterrupted steel casing is formed by splicing the short cylinder bodies, so that the construction prevention and fixing effects can be achieved.

Description

Bridge pile foundation structure

Technical Field

The utility model relates to the technical field of pile foundations, in particular to a bridge pile foundation structure.

Background

Deep foundations consisting of piles and pile caps connected to the tops of the piles or single-pile foundations consisting of columns connected to pile foundations, referred to as pile foundations for short. The pile body is completely buried in the soil, and the bottom surface of the bearing platform is in contact with the soil body, so that the pile body is called a low bearing platform pile foundation; when the upper part of the pile body is exposed out of the ground and the bottom of the pile cap is positioned above the ground, the pile body is called a high pile cap pile foundation.

But current pile foundation structure still has certain defect when using, and current pile foundation structure has the complicated problem of construction, and the stake that current pile foundation adopted protects a single structure moreover, has the problem that a stake protects a section of thick bamboo installation difficulty in the work progress. Therefore, it is necessary to provide a new bridge pile foundation structure for overcoming the shortcomings of the prior art.

Disclosure of Invention

In order to overcome the defects in the prior art, the utility model provides a bridge pile foundation structure which is stable in structure and convenient to construct.

In order to achieve the purpose, the bridge pile foundation structure comprises pile holes, a pile frame and a pile platform, wherein the pile frame extends into the pile holes and is filled with concrete to form a pile foundation, the pile platform is arranged at the top of the pile foundation, the pile frame comprises a main frame and a steel casing, the main frame is vertically arranged along the pile holes, and the steel casing is arranged on the outer side of the main frame.

The steel protects a section of thick bamboo including being cylindric steel stack shell, and the top and the bottom of stack shell all set up a plurality of joint bars perpendicularly to the top and the bottom of stack shell still set up a plurality of jacks, and the jack is the same with the quantity of joint bar, and jack and joint bar crisscross setting in proper order, and it realizes being connected to insert through jack and joint bar between two upper and lower stack shells, connects the continuous incessant steel of formation and protects a section of thick bamboo about a plurality of stack shells.

Preferably, the pile hole comprises a vertically arranged hole body and a hole bottom arranged at the bottom of the hole body, and the hole bottom is in a conical structure.

Preferably, the main frame is tied up by the reinforcing bar of a plurality of perpendicular settings and is cylindrical structure, and the main frame top and bottom set up pile head and pile tail, intermediate position respectively and set up the pile body, and wherein bundle on the reinforcing bar of pile head and pile tail position is equipped with and encrypts the hoop, and the spiral hoop that is helical structure is tied up to pile body position to still equidistant tying up on the pile body strengthens the hoop.

Preferably, the inner diameter of the cylinder body is matched with the diameter of the main frame, and the outer diameter of the cylinder body is matched with the diameter of the hole body.

The utility model has the following beneficial effects:

the bridge pile foundation structure provided by the utility model has the advantages of stable structure, convenience in construction and very high strength, and can effectively ensure the engineering quality.

Drawings

The present invention will be further described and illustrated with reference to the following drawings.

Fig. 1 is a schematic view of an overall structure of a bridge pile foundation structure according to a preferred embodiment of the present invention.

Fig. 2 is a schematic view of a pile frame structure of the bridge pile foundation structure of fig. 1.

Fig. 3 is a schematic view of a barrel structure of the bridge pile structure of fig. 1.

Reference numerals: 1. pile holes; 1-1, a hole body; 1-2, bottom of hole; 2. pile frames; 2-1, a main frame; 2-2, steel casing; 2-3 parts of pile head, 2-4 parts of pile body; 2-5, pile tail; 2-6, an encryption hoop; 2-7, spiral hoop; 2-8, reinforcing hoops; 2-9, a cylinder body; 2-10, inserting ribs; 2-11, a jack; 3. and (4) pile platforms.

Detailed Description

The technical solution of the present invention will be more clearly and completely explained by the description of the preferred embodiments of the present invention with reference to the accompanying drawings.

Examples

As shown in fig. 1, the bridge pile foundation structure of the present invention includes a pile hole 1, a pile frame 2 and a pile platform 3, wherein the pile frame 2 extends into the pile hole 1 and is filled with concrete to form a pile foundation, the pile platform is disposed on the top of the pile foundation, the pile frame 2 includes a main frame 2-1 and a steel casing 2-2, the main frame 2-1 is vertically disposed along the pile hole 1, and the steel casing 2-2 is disposed outside the main frame 2-1.

In the embodiment, a pile hole 1 is dug in advance, a bundled pile frame 2 extends into the pile hole 1, a steel pile casing 2-2 is arranged between the pile frame 2 and the pile hole 1, the wall thickness of the steel pile casing 2-2 is 30mm, when the steel pile casing 2-2 is positioned, the center of the pile hole 1 is taken as the center of a circle, the position of the steel pile casing is determined on soil according to the radius of the steel pile casing 2-2, after the steel pile casing 2-2 is in place, pressure is applied to embed the steel pile casing 2-2, whether the steel pile casing is vertical or not is checked in the embedding process, and if deflection is found, correction is carried out in time. After the steel casing 2-2 is installed and buried in place, the outside of the casing is backfilled and compacted with clay to prevent water leakage around the casing.

As shown in figure 3, the steel casing 2-2 comprises a cylindrical steel casing 2-9, a plurality of inserting ribs 2-10 are vertically arranged at the top and the bottom of the casing 2-9, a plurality of inserting holes 2-11 are also arranged at the top and the bottom of the casing 2-9, the number of the inserting holes 2-11 is the same as that of the inserting ribs 2-10, the inserting holes 2-11 and the inserting ribs 2-10 are sequentially arranged in a staggered manner, the upper casing 2-9 and the lower casing 2-9 are connected through the inserting holes 2-11 and the inserting ribs 2-10 in an inserting manner, and the plurality of casings 2-9 are connected up and down to form the continuous uninterrupted steel casing 2-2.

In the embodiment, when the steel protecting cylinder 2-2 is installed and fixed, the middle cylinder body 2-9 and the upper and lower cylinder bodies 2-9 are mutually inserted, one cylinder body 2-9 between the two cylinder bodies 2-9 is inserted into the insertion hole 2-11 of the other cylinder body 2-9 through the insertion rib 2-10, so that the two cylinder bodies 2-9 are connected, a plurality of cylinder bodies 2-9 are sequentially connected up and down to form the continuous and uninterrupted steel protecting cylinder 2-2, and the steel protecting cylinder 2-2 plays a role in construction prevention and fixation and is convenient for concrete pouring.

As a technical optimization scheme of the utility model, as shown in FIG. 1, a pile hole 1 comprises a hole body 1-1 vertically arranged and a hole bottom 1-2 arranged at the bottom of the hole body 1-1, and the hole bottom 1-2 is in a conical structure.

By adopting the technical scheme, the specification of the hole bottom 1-2 is larger than that of the hole body 1-1, and the concrete of the hole bottom 1-2 can form a conical supporting seat during pouring, so that the stability of the whole pile foundation can be ensured, and the structural strength of the pile foundation is improved.

As a technical optimization scheme of the utility model, as shown in figure 2, a main frame 2-1 is bundled by a plurality of vertically arranged steel bars to form a cylindrical structure, the top and the bottom of the main frame 2-1 are respectively provided with a pile head 2-3 and a pile tail 2-5, the middle position is provided with a pile body 2-4, wherein the steel bars at the pile head 2-3 and the pile tail 2-5 are bundled with an encrypted hoop 2-6, the pile body 2-4 is bundled with a spiral hoop 2-7 in a spiral structure, and the pile body 2-4 is further bundled with the reinforced hoops 2-8 at equal intervals.

By adopting the technical scheme, the top and the bottom of the main frame 2-1 are encrypted and fixed through the encryption hoops 2-6, the middle position is spirally locked through the spiral hoops 2-7, the bending deformation of the main steel bars is prevented, and the strength of the main steel bars at the middle position is further enhanced through the reinforcement hoops 2-8.

As a technical optimization scheme of the utility model, the inner diameter of the cylinder body 2-9 is matched with the diameter of the main frame 2-1, and the outer diameter of the cylinder body 2-9 is matched with the diameter of the hole body 1-1.

Through adopting above-mentioned technical scheme to can guarantee the rationality of whole pile foundation inner structure, ensure when concreting, each subassembly can remain stable in the pile foundation, improve and pour the quality.

The above detailed description merely describes preferred embodiments of the present invention and does not limit the scope of the utility model. Without departing from the spirit and scope of the present invention, it should be understood that various changes, substitutions and alterations can be made herein by those skilled in the art without departing from the spirit and scope of the utility model as defined by the appended claims and their equivalents. The scope of the utility model is defined by the claims.

Claims

1. A bridge pile foundation structure comprises pile holes, a pile frame and a pile platform, wherein the pile frame extends into the pile holes and is filled with concrete to form a pile foundation, and the pile platform is arranged at the top of the pile foundation;

the steel protects a section of thick bamboo including being cylindric steel stack shell, the top and the bottom of stack shell all set up a plurality of joint bars perpendicularly, and the top and the bottom of stack shell still set up a plurality of jacks, the jack is the same with the quantity of joint bar, just the jack sets up with the joint bar is crisscross in proper order, two from top to bottom it is connected, a plurality of to connect the continuous incessant steel of formation and protect a section of thick bamboo about the stack shell to insert through jack and joint bar between the stack shell.

2. A bridge pile foundation structure according to claim 1, wherein the pile holes include vertically disposed bores and a bottom hole disposed at the bottom of the bores, and the bottom hole is of a conical configuration.

3. The bridge pile foundation structure of claim 2, wherein the main frame is bundled by a plurality of vertically arranged steel bars to form a cylindrical structure, the top and bottom of the main frame are respectively provided with a pile head and a pile tail, and the middle position is provided with a pile body, wherein the steel bars at the pile head and the pile tail are bundled with an encrypted hoop, the pile body is bundled with a spiral hoop in a spiral structure, and the pile body is further bundled with the enhanced hoops at equal intervals.

4. A bridge pile foundation structure according to claim 2, wherein the inner diameter of the barrel is adapted to the diameter of the main frame, and the outer diameter of the barrel is adapted to the diameter of the bore.

5. The bridge pile foundation structure of claim 1, wherein the insertion holes are circular in structure, and the depth of the insertion holes is matched with the length of the dowel bars.