Bridge support combined foundation pile

Abstract

The utility model discloses a bridge support combined foundation pile which comprises a reinforcement cage. The multiple steel pipe positioning ribs are distributed in the reinforcement cage at intervals, and the steel pipe positioning ribs are welded to the inner wall of the reinforcement cage; the steel pipe supporting ribs are distributed in the reinforcement cage, the steel pipe supporting ribs are located below the steel pipe positioning ribs, and the steel pipe supporting ribs are connected with the inner wall of the reinforcement cage in a welded mode; the embedded steel pipe is mounted in the reinforcement cage; wherein the upper portion of the reinforcement cage and the embedded steel pipe are overlapped, the upper portion of the reinforcement cage is arranged in a full-cage mode, and the lower portion of the reinforcement cage is arranged in a half-cage mode. The construction quality of a bridge and building temporary support foundation is improved, the bearing effect of a support combined pile foundation is improved, the construction efficiency of the pile foundation is improved, and the using number of steel is reduced; and the overall construction period of the structure is shortened, and support pile foundations under different conditions can be adapted.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of combined foundation pile. More specifically, the utility model relates to a bridge support combined foundation pile. BACKGROUND

[0002] With the continuous development of the city, municipal road construction gradually extends from the urban area to the surrounding towns and villages, and more and more new trunk roads in the city will encounter pump station channels, protective dikes, soft geology and other conditions. In order to meet the technical standards required by the city trunk road, it is necessary to overcome the wave fluctuations, large differences, soft geology and other unfavorable geological conditions. The existing technology of cast-in-place steel pipe support pile foundation is divided into steel pipe driving pile and rock-socketed steel pipe pile technology by pile planting method. The steel pipe driving pile technology uses a vibrating hammer and an impact hammer to drive the steel pipe into the design depth to meet the pile foundation bearing capacity requirement. In the case of low strength mudstone, it is difficult to achieve the design depth with the existing piling equipment. The rock-socketed steel pipe pile technology by pile planting method uses a rotary drill for drilling construction, and the vibrating hammer is used to assist pile planting after hole pouring. The steel pipe penetrates into the pile bottom, and the steel consumption is large, which is not conducive to energy saving and environmental protection. Therefore, a bridge support combined foundation pile structure is needed. SUMMARY

[0003] In order to achieve these purposes and other advantages according to the utility model, a preferred embodiment of the utility model provides a bridge support combined foundation pile, which comprises:

[0004] A steel reinforcement cage;

[0005] A steel pipe positioning rib, which is spaced apart and distributed in the steel reinforcement cage, is welded to the inner wall of the steel reinforcement cage;

[0006] A steel pipe support rib, which is distributed in the steel reinforcement cage, is located below the steel pipe positioning rib, and is welded to the inner wall of the steel reinforcement cage;

[0007] A pre-embedded steel pipe, which is installed in the steel reinforcement cage, has its top end extending out of the steel reinforcement cage, and its lower end supported on the steel pipe support rib, and the pipe body of the pre-embedded steel pipe is also welded to the steel reinforcement positioning rib. The pre-embedded steel pipe passes through the steel pipe support rib, the steel pipe positioning rib and the steel reinforcement cage;

[0008] The steel reinforcement cage is filled with concrete;

[0009] The upper part of the reinforcement cage overlaps with the embedded steel pipe, and the upper part of the reinforcement cage is provided as a full cage, and the lower part of the reinforcement cage is provided as a half cage; when the reinforcement cage is provided as a full cage, the reinforcement cage is provided with main reinforcement and stirrups surrounding the outside of the main reinforcement, and when the reinforcement cage is provided as a half cage, the reinforcement cage is only provided with the main reinforcement without the stirrups, and the number of the main reinforcement is half of that of the full cage;

[0010] The half cage part of the reinforcement cage is embedded below the ground, and the full cage part is located above the ground.

[0011] According to a preferred embodiment of the utility model, the length of the full cage of the reinforcement cage is 2 / 3 of the length of the reinforcement cage, and the length of the half cage of the reinforcement cage is 1 / 3 of the length of the reinforcement cage.

[0012] According to a preferred embodiment of the utility model, the steel pipe supporting rib is square, the steel pipe positioning rib is square, and the four corners of the steel pipe supporting rib and the four corners of the steel pipe positioning rib are respectively welded to the inner wall of the reinforcement cage.

[0013] According to a preferred embodiment of the utility model, the bottom of the embedded steel pipe is placed on the four sides of the steel pipe supporting rib.

[0014] According to a preferred embodiment of the utility model, the outer wall of the embedded steel pipe is welded to the inner wall of the positioning rib.

[0015] According to a preferred embodiment of the utility model, a supporting rod is welded to the upper part of the embedded steel pipe, and the supporting rod is placed on the top end of the reinforcement cage.

[0016] The utility model has at least the following beneficial effects: the utility model improves the quality of temporary support foundation construction of bridges and buildings, improves the bearing effect of support combined pile foundation, improves the construction efficiency of pile foundation, reduces the amount of steel used, and shortens the overall construction period of the structure.

[0017] (1) safe and reliable: the utility model adopts the combination of bored piles and steel columns, the support system is clear in stress, reasonable in layout, simple in construction, and small in safety risk;

[0018] (2) good construction quality: the utility model adopts two positioning frames to control the verticality of the steel column, and the steel column is connected by welding, so that the connection effect is good;

[0019] (3) economic and efficient: the utility model adopts bored piles to replace steel pipe piles, improves the construction efficiency, reduces the length of the steel column, and saves the amount of steel;

[0020] (4) wide application range: the utility model is applicable to various cast-in-situ concrete beam support construction under complex terrain and geological conditions.

[0021] Other advantages, objects and features of the utility model will be partly embodied through the following description, and will be partly understood by those skilled in the art through research and practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a structural schematic view of the bridge support combined foundation pile in the utility model.

[0023] Figure 2 It is a layout schematic view of the steel pipe supporting rib and the steel pipe positioning rib in the utility model.

[0024] Figure 3 It is a plan view of the steel pipe positioning rib in the utility model.

[0025] Figure 4 It is a plan view of the steel pipe supporting rib in the utility model. DETAILED DESCRIPTION

[0026] The utility model will be further described in detail in combination with the drawings, so that those skilled in the art can implement according to the description.

[0027] The following description is used to disclose the utility model so that those skilled in the art can implement the utility model. The preferred embodiments in the following description are only as examples, and other obvious modifications can be thought of by those skilled in the art. The basic principles of the utility model defined in the following description can be applied to other embodiments, modification schemes, improvement schemes, equivalent schemes and other technical schemes without departing from the spirit and scope of the utility model.

[0028] Those skilled in the art should understand that, in the disclosure of the utility model, the orientation or position relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore the above terms cannot be understood as a limitation on the utility model.

[0029] It can be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of one element can be one, and in another embodiment, the number of the element can be multiple, and the term "one" cannot be understood as a limitation on the number.

[0030] As Figures 1-4 The utility model provides a bridge support combination foundation pile, including:

[0031] Steel reinforcement cage 1;

[0032] Steel pipe positioning rib 3, it is multiple, interval distribution in steel reinforcement cage 1, steel pipe positioning rib 3 is welded to the inner wall of steel reinforcement cage 1;

[0033] Steel pipe support rib 4, it is distributed in steel reinforcement cage 1, steel pipe support rib is located below steel pipe positioning rib, steel pipe support rib is welded to connect the inner wall of steel reinforcement cage;

[0034] Pre-bury steel pipe 2, it is installed in steel reinforcement cage 1, and the top end of pre-bury steel pipe 2 extends steel reinforcement cage 1, and pre-bury steel pipe lower end is supported on steel pipe support rib, and the pipe body of pre-bury steel pipe is also welded to connect steel reinforcement positioning rib 3, and pre-bury steel pipe 2 passes through steel pipe support rib 4, steel pipe positioning rib 3 and steel reinforcement cage 1;

[0035] Pour concrete 5 in steel reinforcement cage 1;

[0036] Wherein, the upper portion of steel reinforcement cage and pre-bury steel pipe 2 overlap, and the upper portion of steel reinforcement cage 1 is full cage 1.1 setting, and the lower portion of steel reinforcement cage 2 is half cage 1.2 setting, when steel reinforcement cage is full cage 1.1 setting, steel reinforcement cage is provided with main reinforcement and stirrup that surrounds the outside of main reinforcement, when steel reinforcement cage is half cage 1.2 setting, steel reinforcement cage only has main reinforcement, does not have stirrup, and the number of main reinforcement at this time is half of the number of main reinforcement when full cage;

[0037] The half cage portion of steel reinforcement cage is buried below ground, and the full cage portion is located above ground.

[0038] The bridge support combination foundation pile mainly comprises a steel reinforcement cage, steel pipe positioning ribs, steel pipe support ribs, a pre-bury steel pipe and concrete poured in the steel reinforcement cage, and the design is ingenious, and each part closely cooperates to jointly build a stable foundation support system, thereby laying a solid foundation for improving the quality of bridge and building temporary support foundation construction.

[0039] The steel reinforcement cage is the core support structure of the entire foundation pile, and its design fully considers the stress requirements under different working conditions. It is divided into upper and lower parts, the upper part overlaps with the embedded steel pipe and is arranged in a full cage; the lower part is arranged in a half cage. When the steel reinforcement cage is designed in a full cage, the structure is rigorous and complex, the main reinforcement, as the key component for bearing vertical load and part of the horizontal load, usually selects high-strength steel material, and the diameter and spacing of the steel reinforcement are determined according to accurate mechanical calculation to ensure that the steel reinforcement can provide strong bearing capacity for the entire foundation pile. The stirrups around the main reinforcement tightly constrain the main reinforcement through precise spacing arrangement, effectively prevent the lateral displacement of the main reinforcement during the stress process, greatly enhance the integrity between the main reinforcements, and thus significantly improve the stability of the entire steel reinforcement cage. When the steel reinforcement cage is arranged in a half cage, only the main reinforcement is retained, and the number of main reinforcements at this time is half of that in the full cage. The half cage of the steel reinforcement cage is embedded in the ground below, fully utilizing the anchoring effect of the soil body to enhance the stability of the foundation pile; the full cage part is located above the ground to provide stable support for the bridge support. This unique design not only improves the bearing effect of the support combined pile foundation, but also reduces the amount of steel used and shortens the overall construction period of the structure, providing a strong guarantee for the support pile foundation under different conditions.

[0040] A plurality of steel pipe positioning ribs are uniformly and spacedly distributed in the steel reinforcement cage, are made of high-quality steel material, and are firmly welded to the inner wall of the steel reinforcement cage through high-precision welding process. These steel pipe positioning ribs bear the heavy responsibility of accurately determining the position of the embedded steel pipe in the steel reinforcement cage, and ensure that the embedded steel pipe always maintains accurate verticality and positional accuracy during installation. The steel pipe support ribs are also distributed in the steel reinforcement cage and are located below the steel pipe positioning ribs and welded to the inner wall of the steel reinforcement cage.

[0041] The embedded steel pipe is installed in the steel reinforcement cage, with its top end extending out of the steel reinforcement cage for efficient connection with the upper structure of the bridge. The lower end of the embedded steel pipe is supported on the steel pipe support rib, and the pipe body is tightly welded to the steel pipe positioning rib through fine welding process. Through the dual action of the steel pipe support rib and the steel pipe positioning rib, the embedded steel pipe and the steel reinforcement cage are tightly combined into a whole. The outer wall of the embedded steel pipe is welded to the inner wall of the steel pipe positioning rib, further enhancing the connection strength and stability between them.

[0042] After the precise installation of the above-mentioned components is completed, concrete with a design strength grade is poured into the reinforcement cage. The pouring process is strictly in accordance with the construction specifications, and professional pouring equipment is used to ensure that the concrete uniformly fills the space inside the reinforcement cage, tightly wraps the reinforcement cage, the steel pipe positioning rib, the steel pipe supporting rib and the embedded steel pipe together to form a high-strength overall structure. The presence of the concrete not only significantly increases the compressive strength of the foundation pile, but also improves the durability and corrosion resistance of the entire structure, laying a solid foundation for the long-term stable operation of the bridge, effectively promoting the improvement of the foundation pile construction efficiency, reducing the maintenance cost in the later period and shortening the overall structure construction period.

[0043] In summary, the bridge support combined foundation pile successfully achieves the technical effects of improving the construction quality of the temporary support foundation of the bridge and the building, improving the bearing effect of the support combined pile foundation, improving the construction efficiency of the pile foundation, reducing the amount of steel used, and shortening the overall structure construction period through the reasonable design, precise installation and close cooperation of each component. At the same time, the utility model has the advantages of simple structure, reliability, easy operation, adaptability to support pile foundations under different conditions, fast installation speed, standardization, standardization and safety of the same type of construction, and provides a high-efficiency, stable and reliable foundation support structure for the construction of bridge engineering, which has a wide application prospect and significant economic benefits.

[0044] In another technical solution, the full cage length of the reinforcement cage is 2 / 3 of the total length of the reinforcement cage, and the half cage length is 1 / 3 of the total length of the reinforcement cage. Such length ratio is carefully designed and repeatedly verified, which can not only meet the anchoring requirements of the underground part to the soil and ensure the stability of the foundation pile underground, but also provide sufficient support height and strength for the bridge support above the ground, further optimize the bearing effect of the support combined pile foundation, reduce unnecessary material waste, shorten the overall structure construction period, and make the construction more efficient and economical.

[0045] In another technical solution, the steel pipe supporting rib is square, the steel pipe positioning rib 3 is square, and the four corners of the steel pipe supporting rib and the four corners of the steel pipe positioning rib are respectively welded to the inner wall of the reinforcement cage.

[0046] The steel pipe supporting rib and the steel pipe positioning rib are both square, which makes them uniformly stressed in all directions when they are welded to the inner wall of the reinforcement cage and positioned and supported for the embedded steel pipe, effectively improving the stability and reliability of the entire structure, better helping to achieve the goal of improving the construction quality of the temporary support foundation of the bridge and the building, speeding up the installation, and standardizing, standardizing and safety of the same type of construction.

[0047] The shape of the steel pipe positioning rib 3 is square, and four corners are firmly welded and connected with the inner wall of the steel bar cage, which not only ensures the firmness of the connection, but also plays a stable positioning role on the embedded steel pipe in all directions, provides a strong guarantee for the installation of the embedded steel pipe and the performance of the entire foundation pile, makes the same type of construction standardized, standardized and safe, and effectively improves the construction quality of the bridge and building temporary support foundation.

[0048] The shape of the steel pipe supporting rib 4 is also square, and the same high-quality steel material as the steel pipe positioning rib is selected, and the four corners are tightly welded with the inner wall of the steel bar cage through strict welding process. The steel pipe supporting rib mainly undertakes the important task of supporting the embedded steel pipe and provides stable bottom support for the embedded steel pipe. In the design, various loads that the embedded steel pipe may bear are fully considered to ensure that it will not sink or displace when bearing the upper load. The bottom of the embedded steel pipe is precisely placed on the four sides of the steel pipe supporting rib to form a stable support structure, so that the embedded steel pipe can stably play a role in the entire foundation pile system, further improve the bearing effect of the support combined pile foundation, and ensure the efficiency and safety of the foundation pile construction.

[0049] In addition, the bottom of the embedded steel pipe is placed on the four sides of the steel pipe supporting rib.

[0050] In another technical solution, a support rod is welded on the upper part of the embedded steel pipe, and the support rod is precisely placed on the top end of the steel bar cage. This structure further enhances the cooperative working capacity between the embedded steel pipe and the steel bar cage, so that the entire foundation pile can better cooperate between components when bearing various loads, and achieve the goal of improving the construction quality of the bridge and building temporary support foundation.

[0051] Although the embodiments of the present application have been disclosed as above, they are not limited to the application and implementation described in the specification and examples, and can be fully applied to various fields suitable for the present application. For those skilled in the art, other modifications can be easily realized, therefore the present application is not limited to specific details and examples shown and described herein, without departing from the general concept defined by the claims and equivalent scope.

Claims

1. A bridge support combined foundation pile characterized by, The utility model relates to a reinforced cage, steel pipe positioning rib, steel pipe support rib, embedded steel pipe, concrete, and the like. The utility model relates to a reinforced cage, steel pipe positioning rib, steel pipe support rib, embedded steel pipe, concrete, and the like. The utility model relates to a reinforced cage, steel pipe positioning rib, steel pipe support rib, embedded steel pipe, concrete, and the like. The utility model relates to a reinforced cage, steel pipe positioning rib, steel pipe support rib, embedded steel pipe, concrete, and the like. The utility model relates to a reinforced cage, steel pipe positioning rib, steel pipe support rib, embedded steel pipe, concrete, and the like. The utility model relates to a reinforced cage, steel pipe positioning rib, steel pipe support rib, embedded steel pipe, concrete, and the like. The utility model relates to a reinforced cage, steel pipe positioning rib, steel pipe support rib, embedded steel pipe, concrete, and the like. The utility model relates to a reinforced cage, steel pipe positioning rib, steel pipe support rib, embedded steel pipe, concrete, and the like.

2. The bridge abutment composite foundation pile according to claim 1, characterized in that, The utility model relates to a reinforced cage, steel pipe positioning rib, steel pipe support rib, embedded steel pipe, concrete, and the like.

3. The bridge support composite foundation pile according to claim 1, wherein, The utility model relates to a reinforced cage, steel pipe positioning rib, steel pipe support rib, embedded steel pipe, concrete, and the like.

4. The bridge support composite foundation pile according to claim 3, wherein, The utility model relates to a reinforced cage, steel pipe positioning rib, steel pipe support rib, embedded steel pipe, concrete, and the like.

5. The bridge support composite foundation pile according to claim 3, wherein, The utility model relates to a reinforced cage, steel pipe positioning rib, steel pipe support rib, embedded steel pipe, concrete, and the like.

6. The bridge support composite foundation pile of claim 1, wherein, The utility model relates to a reinforced cage, steel pipe positioning rib, steel pipe support rib, embedded steel pipe, concrete, and the like. The utility model relates to a reinforced cage, steel pipe positioning rib, steel pipe support rib, embedded steel pipe, concrete, and the like. The utility model relates to a reinforced cage, steel pipe positioning rib, steel pipe support rib, embedded steel pipe, concrete, and the like. The utility model relates to a reinforced cage, steel pipe positioning rib, steel pipe support rib, embedded steel pipe, concrete, and the like. The utility model relates to a reinforced cage, steel pipe positioning rib, steel pipe support rib, embedded steel pipe, concrete, and the like. The utility model relates to a reinforced cage, steel pipe positioning rib, steel pipe support rib, embedded steel pipe, concrete, and the like. 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