Composite anchoring system

Abstract

The utility model relates to a combined type anchoring system which comprises an anchor seat capable of being provided with an anchoring connector, a concrete anchor beam attached to the bottom of the anchor seat, a plurality of groups of anchor rods for fastening the anchor seat and the concrete anchor beam, rock anchor holes formed in the anchor seat between the anchor rods of the anchor rod groups, and rock anchors penetrating through the rock anchor holes and the concrete anchor beam, when individual rock anchors fail, stress can be transmitted to surrounding rock anchor structures which do not fail through the anchor bases and the concrete anchor beams, the structural reliability is improved, and the safety is improved.

Description

Technical Field

[0001] The utility model relates to the field of bridge engineering, specifically to a technical field of a composite anchoring system. Background Art

[0002] In bridge construction, especially during the construction of bridges using the cable-stayed suspension method, the stability of the anchoring system is one of the key factors to ensure the safety of the overall bridge structure. Traditional anchoring structures often rely on single rock anchor cables for fixation, that is, only one rock anchor cable is set at each anchor point to bear all the tension and shear forces. Although this method simplifies the construction process and reduces costs to a certain extent, there are significant risks in actual applications.

[0003] If a certain rock anchor cable fails due to factors such as changes in geological conditions, material aging, construction errors, or external damage, the stability of the entire anchoring structure will be seriously affected, and even lead to local or overall instability of the bridge structure, thus endangering the lives of construction workers and the service life of the bridge.

[0004] In view of the above problems, the existing anchoring structures have obvious deficiencies in terms of safety, reliability, and maintainability. Content of the Utility Model

[0005] In summary, aiming at the deficiencies of the existing technology, the utility model proposes a composite anchoring system, which can provide a higher safety margin. Even in the case of the failure of a single rock anchor cable, it can maintain the stability and functionality of the overall structure, reduce construction risks, and improve the reliability of bridge construction and operation.

[0006] To achieve the above object, the utility model adopts the following technical solutions:

[0007] A composite anchoring system includes an anchor seat for installing an anchor pull connector, a concrete anchor beam disposed at the bottom of the anchor seat, a plurality of groups of anchor rods for fastening the anchor seat and the concrete anchor beam, and rock anchor holes are provided between the anchor rods of the anchor rod group on the anchor seat;

[0008] It further includes a rock anchor passing through the rock anchor hole and the concrete anchor beam.

[0009] Compared with the existing technology, in this case, a plurality of groups of anchor rods are used to fasten the anchor seat and the concrete anchor beam, and the rock anchor passes through the anchor seat and the concrete anchor beam, so that when an individual rock anchor fails, the force can be transmitted to the surrounding non-failed rock anchor structures through the anchor seat and the concrete anchor beam, improving the structural reliability and increasing the safety.

[0010] In some embodiments, the anchor seat includes two side plates arranged opposite to each other and a pin shaft spanning the side plates and for installing an anchor pull connector.

[0011] In a preferred embodiment, the side plate is connected to the pin shaft through a clamping plate.

[0012] In a preferred embodiment, the number of the rock anchors is two.

[0013] In some embodiments, the ends of the rock anchors are sealed with cement mortar.

[0014] In some embodiments, a positioning plate for positioning the anchor rod and the rock anchor is further included.

[0015] In a preferred embodiment, there are two positioning plates, which are respectively arranged at the upper and lower ends of the concrete anchor beam.

[0016] In some embodiments, a steel mesh for strengthening the concrete anchor beam is further included.

[0017] In a preferred embodiment, the steel meshes are respectively arranged at the upper and lower ends of the concrete anchor beam. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a side view of a composite anchoring system in this case;

[0019] Figure 2 is an elevation view of a composite anchoring system in this case;

[0020] Figure 3 is a plan view of a composite anchoring system in this case;

[0021] Figure 4 is an installation schematic diagram of a composite anchoring system in this case;

[0022] Figure 5 is Figure 4 a schematic view of the perspective at position A in DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The features of the present invention and other related features are further described in detail through the following embodiments for the understanding of those skilled in the same industry:

[0024] Please refer to Figures 1 to 4 , a composite anchoring system in this case includes an anchor seat 100 for installing an anchor pull connector 1, and a concrete anchor beam 200 arranged at the bottom of the anchor seat 100. Here, the anchor pull connector 1 is used to connect the mechanical interface of the anchoring system and the equipment, which is a technical means commonly used in the industry and will not be elaborated herein. The bottom of the anchor seat 100 refers to the direction opposite to the connection position of the anchor pull connector 1, and the concrete anchor beam 200 is used to provide additional support and stability.

[0025] The anchor seat 100 and the concrete anchor beam 200 are fastened by a plurality of groups of anchor bolts 300. Specifically, the anchor bolts 300 are arranged in groups on both sides of the anchor seat 100. Rock anchor holes 400 are provided between the anchor bolts 300 in each group of anchor bolts 300. The rock anchors 500 pass through the rock anchor holes 400 and the concrete anchor beam 200. When individual rock anchors 500 fail, the structural force can be transmitted to the surrounding unfailed rock anchors 500 through the anchor seat 100 and the concrete anchor beam 200, improving the structural reliability and increasing the safety. Here, the rock anchor 500 generally refers to being made of high-strength steel, such as steel strands, steel wires or steel bars, drilled into the interior of the rock, and then filled with bonding materials such as cement mortar or epoxy resin, so that the anchoring section forms a firm mechanical connection with the rock. This is a common means in the industry and will not be elaborated further. The rock anchor 500 described in this case includes a cable anchor, which passes through the duct 510 at the concrete anchor beam 200, and the end of the rock anchor 500 is sealed with M40 cement mortar.

[0026] Specifically, the anchor seat 100 may be provided with two opposite side plates 110. At the bottom of the side plates 110, a plurality of bottom plates 120 spanning the two side plates 110 are provided. Anchor bolt holes 121 through which the anchor bolts 300 pass are provided on the bottom plates 120. Anchor bolt holes 121 are respectively provided on the outer sides of the two sides of the side plates 110 as the fixing holes for a group of anchor bolts 300. The bottom plates 120 and the side plates 110 are reinforced by reinforcing ribs. At the upper part of the side plates 110, a pin shaft 600 for installing an anchor pull connector is arranged across the two side plates 110. Preferably, the pin shaft 600 is connected to the side plates 110 through a clamping plate 700 to ensure the stability and reliability of the pin shaft 600, and a spring can be used in combination when necessary.

[0027] A cross plate 130 is arranged between the pin shaft 600 and the bottom plate 120. Multiple cross plates 130 can be provided according to requirements, mainly to support between the side plates 110. The rock anchor hole 400 is actually a cable anchor installation hole passing through the cross plate 130. When necessary, a reinforcing pad 131 can also be provided at the concrete anchor beam 200 of the cross plate 130. In this embodiment, the number of rock anchor holes 400 and the corresponding rock anchors 500 is 2. That is, among the 3 groups of anchor bolts 300, except for the group where the pin shaft 600 is installed, rock anchor holes 400 and the corresponding rock anchors 500 are provided at the other two groups of anchor bolts 300. This can also be followed in other embodiments. Rock anchor holes 400 and the corresponding rock anchors 500 can be provided at all positions except where the pin shaft 600 is installed.

[0028] For the fastening of the anchor seat 100 and the concrete anchor beam 200, in some embodiments, positioning plates 210 for positioning the anchor bolts 300 and the rock anchors 500 can be provided. Preferably, there are 2 positioning plates 210, which are respectively arranged at the upper and lower ends of the concrete anchor beam 200. For the anchor bolts 300 passing through the positioning plates 210, they can be fastened with washers and double nuts.

[0029] To strengthen the strength of the concrete anchor beam 200, a steel mesh 220 can be provided at the positions corresponding to the anchor bolts 300 and the rock anchors 500. Preferably, it can be provided at the upper and lower ends of the concrete anchor beam 200. In this embodiment, 3 steel meshes 220 are provided at the upper end and 1 steel mesh 220 is provided at the lower end, and it can be increased or decreased according to requirements in actual applications.

[0030] Please refer to Figure 4 and Figure 5 , when the entire system is installed in actual applications, there may also be a situation of installation angles. The loose surface layer can be removed first to expose the fresh and intact rock surface, and the hollowed-out part on the corresponding side can be filled with C30 rubble concrete to improve the stability. In this way, the design of the fastening of the anchor seat 100 and the concrete anchor beam 200 in this case can also play a stable role under different installation conditions. Figure 5 It is the top view of the installation layout under actual working conditions.

[0031] As described above, the present case protects a composite anchoring system, and all technical solutions identical or similar to the present case should be regarded as falling within the protection scope of the present case.

Claims

1. A composite anchoring system, characterized in that: It comprises an anchor seat on which an anchor pull connector can be installed, a concrete anchor beam arranged in contact with the bottom of the anchor seat, and a plurality of anchor rods fastening the anchor seat and the concrete anchor beam, wherein the anchor seat is provided with rock anchor holes between the anchor rods of the anchor rod group; It also includes a rock anchor that is arranged through the rock anchor hole and the concrete anchor beam.

2. A composite anchoring system according to claim 1, characterized in that: The anchor seat comprises two side plates arranged facing each other and a pin shaft arranged across the side plates and capable of installing an anchor pull connector.

3. A composite anchoring system as claimed in claim 2, characterized in that: The side plate is connected to the pin shaft through a clamping plate.

4. A composite anchoring system according to claim 1, characterized in that: The number of rock anchors is 2.

5. A composite anchoring system as claimed in claim 1, characterized in that: The end of the rock anchor is sealed with cement mortar.

6. A composite anchoring system according to claim 1, characterized in that: It also includes a positioning plate for positioning the anchor rod and the rock anchor.

7. A composite anchoring system as claimed in claim 6, characterized in that: There are two positioning plates, which are respectively arranged at the upper and lower ends of the concrete anchor beam.

8. A composite anchoring system as claimed in claim 1, characterized in that: It also includes a steel mesh for reinforcing the concrete anchor beam.

9. A composite anchoring system as claimed in claim 8, characterized in that: The steel mesh sheets are respectively arranged at the upper and lower ends of the concrete anchor beam.

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