Steel pipe pile foundation suitable for existing expressway surface

Abstract

The utility model relates to a steel pipe pile foundation suitable for an existing expressway surface. The steel pipe pile foundation comprises a steel plate foundation, a plurality of anchoring systems, a plurality of carrying pole beam assemblies and a plurality of reinforcing systems. The steel plate foundation is arranged on the highway pavement, the reinforcing systems are welded to the positions, corresponding to the steel pipe piles, of the upper surface of the steel plate foundation, and the steel pipe piles are welded to the corresponding reinforcing systems. Each carrying pole beam assembly comprises two pressing beams and two anchor beams, the two pressing beams are arranged on the front side and the rear side of the top of the same row of reinforcing systems, the two anchor beams are arranged on the left side and the right side of the steel plate foundation respectively and located on the tops of the two pressing beams, and each anchor beam is connected with the expressway pavement through a plurality of anchoring systems. The steel pipe pile can be fixed without large-area damage to the expressway pavement, the steel pipe pile is convenient to dismantle, construction efficiency is remarkably improved, rapid recovery of the expressway pavement after construction is finished is facilitated, and influences on follow-up traffic are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge construction, in particular to a steel pipe pile foundation suitable for existing high-speed road surfaces. Background Art

[0002] During the construction of a bridge across an existing highway, it is sometimes necessary to set up temporary steel pipe piles on the existing highway pavement. The conventional method of setting up steel pipe piles on the existing highway pavement is to first excavate the highway pavement and then set up an expanded foundation. This method causes great damage to the existing pavement, is not conducive to the rapid recovery of the pavement after the construction is completed, and affects subsequent traffic. Utility Model Content

[0003] The utility model aims to solve the deficiencies of the prior art and provide a steel pipe pile foundation suitable for existing high-speed road surfaces.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

[0005] A steel pipe pile foundation suitable for existing high-speed roads, comprising a steel plate foundation, a plurality of anchoring systems, a plurality of shoulder beam assemblies and a plurality of reinforcement systems;

[0006] The steel plate foundation is set on the high-speed road surface, and several reinforcement systems are welded on the surface of the steel plate foundation at the position corresponding to each steel pipe pile, and the steel pipe piles are welded on the corresponding reinforcement systems;

[0007] Each shoulder beam assembly includes two pressure beams and two anchor beams. The two pressure beams are arranged on the front and rear sides of the top of the same row of reinforcement systems. The two anchor beams are respectively arranged on the left and right sides of the steel plate foundation and located on the top of the two pressure beams. Each anchor beam is connected to the highway pavement through several anchoring systems.

[0008] The anchoring system includes a tie rod, a nut, a pad, a grouting body and an anchor hole; the anchor hole is drilled on the highway pavement, the lower end of the tie rod is arranged in the anchor hole and fixed by the grouting body, and the upper end of the tie rod passes through the anchor hole, the anchor beam and is fixed by the pad and the nut.

[0009] The reinforcement system includes a base plate welded to a steel plate foundation, and steel pipe piles welded to the upper surface of the base plate.

[0010] A number of stiffening ribs are symmetrically welded on the upper surface of the bottom plate at the lower ends of the two side walls of the steel pipe piles.

[0011] A plurality of connection holes are provided on the anchor beam corresponding to the pull rod, and the pull rod passes through the corresponding connection holes.

[0012] The beneficial effects of the utility model are as follows: the utility model can fix the steel pipe piles without causing large-scale damage to the highway road surface, is convenient for removal, significantly improves construction efficiency, is conducive to the rapid recovery of the highway road surface after construction, and reduces the impact on subsequent traffic. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a top view of the utility model;

[0014] Figure 2 It is the front view of the utility model;

[0015] In the figure: 1- steel plate foundation; 2- anchoring system; 3- shoulder beam assembly; 4- reinforcement system; 5- steel pipe piles; 6- high-speed road surface;

[0016] 201-tie rod; 202-nut; 203-shim plate; 204-grouting body; 205-anchor hole;

[0017] 301-pressure beam; 302-anchor beam;

[0018] 401-base plate; 402-stiffening rib;

[0019] The following is a detailed description of the embodiments of the present invention with reference to the accompanying drawings. DETAILED DESCRIPTION

[0020] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention. The present invention is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become clearer according to the following description. It should be noted that the drawings are all in a very simplified form and are not in precise proportions, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention.

[0021] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a component centered. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a component centered. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a component centered. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0023] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0024] A steel pipe pile foundation suitable for existing high-speed roads, such as Figure 1 As shown, it includes a steel plate foundation 1, an anchoring system 2, a shoulder pole beam assembly 3 and a reinforcement system 4; the anchoring system 2 is implanted below the high-speed road surface 6, and the reinforcement system 4 and the steel plate foundation 1 are anchored by the anchoring system 2 in cooperation with the shoulder pole beam 3, and the steel pipe pile 5 is fixed to the steel plate foundation 1 through the reinforcement system 4, thereby fixing the steel pipe pile 5.

[0025] The steel plate foundation 1 is made by cutting steel plates, and is placed above the highway pavement 6, close to the highway pavement 6, and has a size that ensures that the compression zone of the lower highway pavement 6 is not damaged.

[0026] Anchoring system 2 Figure 2 As shown, it is composed of a tie rod 201, a nut 202, a pad 203, a grouting body 204, and an anchor hole 205. The anchor hole 205 is drilled on the high-speed road surface 6, and the lower part of the tie rod 201 is implanted into the high-speed road surface 6, and grouting is performed, and the tie rod 201 is solidified and fixed by the grouting body 204; the upper part of the tie rod 201 is provided with a pad 203 and a nut 202, and after passing through the shoulder beam 3, the pad 203 and the nut 202 are installed, and the shoulder beam 3 is fixed by tightening the nut 202.

[0027] Shoulder pole beam 3 Figure 2 As shown, it is composed of a pressure beam 301 and an anchor beam 302. The pressure beam 301 is arranged above the steel plate foundation 1. Anchor beams 302 are arranged at both ends of the pressure beam 301. The anchor beam 302 is provided with connecting holes of the anchoring system 1, and the pull rod 201 passes through the corresponding connecting holes.

[0028] Reinforcement system 4 Figure 2 As shown, it is composed of a bottom plate 401 and stiffening ribs 402. The bottom plate 401 is arranged at the designed position of the steel pipe pile 5. The front and rear sides of the upper surface of the bottom plate 401 are below the compression beam 301. The lower part of the bottom plate 401 is welded to the steel plate foundation 1, and the upper part of the bottom plate 401 is welded to the steel pipe pile 5. A number of stiffening ribs 402 are symmetrically welded at the lower ends of the two side walls of the steel pipe pile 5 on the upper surface of the bottom plate 401.

[0029] The utility model can fix the steel pipe piles 5 without extensively destroying the highway pavement 6, is convenient for removal, significantly improves construction efficiency, is conducive to the rapid recovery of the highway pavement 6 after the construction is completed, and reduces the impact on subsequent traffic.

[0030] The usage of the utility model is as follows:

[0031] When installing the steel pipe pile foundation on the existing expressway road surface 6, first drill the anchor hole 205 on the expressway road surface 6, implant the tie rod 201, and perform grouting. After the grouting body 204 solidifies, lay the steel plate foundation 1, weld the bottom plate 401 at the designed position, weld the steel pipe pile 5 and the stiffening rib 402, and after the steel pipe pile 5 is fixed, install the pressure beam 301 and the anchor beam 302, install the pad 203 and the nut 202, and anchor the steel pipe pile 5 by tightening the nut 202, and the installation of the steel pipe pile foundation can be completed. When the steel pipe pile 5 needs to be dismantled after the construction is completed, first remove the nut 202 and the pad 203, then remove the anchor beam 302 and the pressure beam 301 in turn, then cut the weld at the bottom of the steel pipe pile 5, remove the steel pipe pile 5, remove the steel plate foundation 1 from above the tie rod 201, then cut the tie rod 201, and after grouting and sealing the drill hole 205, traffic can be restored and the steel pipe pile foundation is dismantled.

[0032] The utility model is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the utility model is not limited to the above-mentioned method. As long as various improvements are made using the method concept and technical solution of the utility model, or are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. A steel pipe pile foundation suitable for existing high-speed roads, characterized in that: It comprises a steel plate foundation (1), a plurality of anchoring systems (2), a plurality of shoulder beam assemblies (3) and a plurality of reinforcement systems (4); The steel plate foundation (1) is arranged on a high-speed road surface (6), a plurality of reinforcement systems (4) are respectively welded to the upper surface of the steel plate foundation (1) at positions corresponding to each steel pipe pile (5), and the steel pipe pile (5) is welded to the corresponding reinforcement system (4); Each shoulder beam assembly (3) comprises two compression beams (301) and two anchor beams (302), the two compression beams (301) being arranged at the front and rear sides of the top of the same row of reinforcement systems (4), the two anchor beams (302) being arranged at the left and right sides of the steel plate foundation (1) and at the top of the two compression beams (301), and each anchor beam (302) being connected to the high-speed road surface (6) via a plurality of anchoring systems (2).

2. The steel pipe pile foundation suitable for existing highway pavement according to claim 1, characterized in that: The anchoring system (2) comprises a tie rod (201), a nut (202), a pad (203), a grouting body (204) and an anchoring hole (205); the anchoring hole (205) is drilled on the high-speed road surface (6); the lower end of the tie rod (201) is arranged in the anchoring hole (205) and is fixed by the grouting body (204); the upper end of the tie rod (201) passes through the anchoring hole (205) and the anchor beam (302) and is fixed by the pad (203) and the nut (202).

3. The steel pipe pile foundation suitable for existing highway pavement according to claim 2, characterized in that: The reinforcement system (4) comprises a bottom plate (401) welded on the steel plate foundation (1), and steel pipe piles (5) are welded on the upper surface of the bottom plate (401).

4. The steel pipe pile foundation suitable for existing highway pavement according to claim 3, characterized in that: A plurality of stiffening ribs (402) are symmetrically welded on the upper surface of the bottom plate (401) at the lower ends of the two side walls of the steel pipe pile (5).

5. The steel pipe pile foundation suitable for existing highway pavement according to claim 4, characterized in that: A plurality of connection holes are provided on the anchor beam (302) corresponding to the pull rod (201), and the pull rod (201) passes through the corresponding connection holes.

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