Novel deepwater area steel trestle anchoring structure

Abstract

The utility model discloses a novel deepwater area steel trestle anchoring structure which comprises a steel pipe pile, a connecting anchor rod and a grouting guide pipe, a drill hole is drilled in the steel pipe pile, the connecting anchor rod and the grouting guide pipe are bound and fixed, and the bound and fixed connecting anchor rod and the grouting guide pipe fall into the drill hole at the same time. A slurry layer is filled between the connecting anchor rod and the grouting guide pipe and the inner cavity of the drill hole in a matched mode, and the slurry layer, the connecting anchor rod and the grouting guide pipe are of an integrated structure. According to the utility model, not only is the firmness of the anchoring structure improved, but also the stability of bridge structure connection is ensured, and meanwhile, the construction efficiency can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge structures, and more specifically to a novel anchoring structure for a steel trestle bridge in deep water areas. Background Art

[0002] In the prior art, the lower steel pipe of a general steel trestle bridge can be directly embedded into the soil layer to ensure the overall stability of the steel trestle bridge. There are two ways to connect the foundation of the steel trestle bridge and the underwater foundation. One is direct embedding, and the other is bolt connection. For the trestle bridge structure, it is usually easy to implement when the bridge is in a geological condition where it is easy to insert, but it is very difficult to implement in complex geological conditions such as bare rock because of the limitations of equipment and other aspects, and it is very difficult to drive into hard rock formations.

[0003] Chinese Patent: An anchoring structure for the bottom of a steel trestle bridge pile in a shallow overburden reservoir area, authorization announcement number: CN208455605U. This patent document discloses the specific structure and usage method of the existing anchoring structure for the bottom of a steel trestle bridge pile. From the above-disclosed content, it can be seen that this solution symmetrically arranges core extraction holes along the axial direction on the steel pipe pile, and I-beams are placed in the core extraction holes, so as to improve the ability of the steel pipe pile to resist the lateral shear force brought by the water flow and prevent the steel pipe pile from being damaged when impacted by the water flow.

[0004] This technical solution is based on the existing anchoring structure for the bottom of a steel trestle bridge pile, and further improves and perfects the structure of the prior art. Its main purpose is to improve the firmness of the anchoring structure, ensure the stability of the connection of the bridge structure, and at the same time improve the construction efficiency. Content of the Utility Model

[0005] The utility model discloses a novel anchoring structure for a steel trestle bridge in deep water areas, and its main purpose is to overcome the above-mentioned deficiencies and drawbacks existing in the prior art. This solution can not only ensure the structural stability of the bridge, but also speed up the construction progress and save costs.

[0006] The technical solution adopted by the utility model is as follows:

[0007] A novel anchoring structure for a steel trestle bridge in deep water areas includes a steel pipe pile, a connecting bolt and a grouting conduit. A drilling hole is drilled in the steel pipe pile. The connecting bolt and the grouting conduit are tied and fixed together. The tied and fixed connecting bolt and grouting conduit simultaneously fall at the position of the drilling hole. A slurry layer is filled and cooperated between the connecting bolt and the grouting conduit and the inner cavity of the drilling hole. The slurry layer and the connecting bolt and the grouting conduit are integrally connected structures.

[0008] Furthermore, the connecting bolt is a threaded steel bar.

[0009] Furthermore, the drilling hole diameter of the steel pipe pile in the deep water area is larger than the drilling hole diameter of the steel pipe pile in the shallow water area.

[0010] Furthermore, the slurry layer is a graded crushed stone slurry layer.

[0011] Furthermore, the number of the steel pipe piles is multiple segments, and each segment of the steel pipe pile is installed and connected into a whole through components.

[0012] It can be seen from the above description and explanation of the present invention that, compared with the prior art, the advantages of the present invention are as follows:

[0013] Advantage 1: The present invention can broaden the scope of prefabricated assembly and construction of bridges, still applicable in complex terrain and geological conditions, improve the firmness of the anchoring structure, and ensure the stability of the connection of the bridge structure.

[0014] Advantage 2: The structure of the present invention is simple and practical. It can not only speed up the bridge construction progress, but also effectively reduce the project cost, and has high popularization and application value. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of the present invention.

[0016] Figure 2 is a schematic cross-sectional structure diagram of the steel pipe pile of the present invention.

[0017] Figure 3 is a schematic cross-sectional structure diagram of the connecting anchor rod of the present invention.

[0018] Among them, steel pipe pile 1, connecting anchor rod 2, grouting conduit 3, drill hole 4, slurry layer 5. DETAILED DESCRIPTION OF THE INVENTION

[0019] The following further describes and explains the specific embodiments of the present invention with reference to the accompanying drawings.

[0020] As Figures 1 to 3 shown, a new type of deep-water steel trestle anchoring structure includes a steel pipe pile 1, a connecting anchor rod 2 and a grouting conduit 3. The connecting anchor rod 2 is a threaded steel bar rod. A drill hole 4 is drilled in the steel pipe pile 1. The connecting anchor rod 2 and the grouting conduit 3 are tied and fixed. The tied and fixed connecting anchor rod 2 and grouting conduit 3 simultaneously fall at the drill hole 4. A slurry layer 5 is filled and cooperated between the connecting anchor rod 2 and the grouting conduit 3 and the inner cavity of the drill hole. The slurry layer 5 and the connecting anchor rod 3 and the grouting conduit 4 are integrally connected structures. The slurry layer 5 is a graded crushed stone slurry layer. The aperture of the drill hole 4 of the steel pipe pile 1 in the deep water area is larger than the aperture of the drill hole 4 of the steel pipe pile 1 in the shallow water area. The number of the steel pipe piles 1 is multiple segments, and each segment of the steel pipe pile 1 is installed and connected into a whole through components.

[0021] The utility model can broaden the scope of prefabrication and construction of bridges, and is still applicable under complex topographical and geological conditions, improving the firmness of the anchoring structure and ensuring the stability of the connection of the bridge structure. At the same time, the structure of this solution is simple and practical, which can not only speed up the bridge construction progress, but also effectively reduce the project cost, and has high popularization and application value.

[0022] Installation and use process:

[0023] Each section and each component of the steel pipe pile 1 are processed in the factory and transported to the installation site. During construction, the steel pipe pile 1 is first driven into the ground and connected into a whole, and then a drilling machine is used to drill inside the steel pipe pile 1 to obtain a drill hole 4. Then, the connecting anchor rod 2 and the grouting conduit 3 that have been tied and fixed together are placed into the drill hole 4, and then graded broken stones are backfilled. After the installation is completed, grouting is carried out for sealing to form a slurry layer 5, so that the slurry layer 5 is integrally connected with the connecting anchor rod 3 and the grouting conduit 4, and the lower part construction is completed.

[0024] The above is only the specific implementation manner of the utility model, but the design concept of the utility model is not limited thereto. Any non-substantive improvement made to the utility model using this concept should belong to the act of infringing the protection scope of the utility model.

Claims

1. A new type of deep-water steel trestle anchorage structure, characterized by: It includes a steel pipe pile, a connecting anchor rod and a grouting conduit. A borehole is drilled in the steel pipe pile. The connecting anchor rod and the grouting conduit are tied and fixed. The tied and fixed connecting anchor rod and the grouting conduit fall into the borehole at the same time. A slurry layer is filled between the connecting anchor rod and the grouting conduit and the inner cavity of the borehole. The slurry layer, the connecting anchor rod and the grouting conduit are connected to form an integrated structure.

2. A new deep-water steel trestle anchoring structure according to claim 1, characterized in that: The connecting anchor rod is a threaded steel bar.

3. The novel deep-water steel trestle anchoring structure according to claim 1 is characterized by: The borehole diameter of the steel pipe pile in the deep water area is larger than the borehole diameter of the steel pipe pile in the shallow water area.

4. The novel deep-water steel trestle anchoring structure according to claim 1 is characterized by: The slurry layer is a graded crushed stone slurry layer.

5. The novel deep-water steel trestle anchoring structure according to claim 1 is characterized by: The steel pipe piles are provided in multiple sections, and each section of the steel pipe piles is connected as a whole through matching components.

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