Supporting device for deep foundation pit soil layer anchor rod

Abstract

The utility model discloses a supporting device for a deep foundation pit soil layer anchor rod, which comprises an anchor rod body, a base plate and nuts, the number of the nuts is two, the anchor rod body is provided with a slot and forms a limiting fork, the limiting fork and the anchor rod body are obliquely arranged, the head of the anchor rod body is provided with a pointed end, and the pointed end is connected with the base plate. The interior of the anchor rod body is hollow, grout outlet holes are evenly distributed in the anchor rod body, a seepage groove is formed in the anchor rod body, and a grouting limiting opening is formed in the anchor rod body. The utility model belongs to the technical field of civil engineering, and particularly relates to the technical field of civil engineering, which is characterized in that two groups of nuts are arranged for limiting, a limiting fork is inserted into soil to prevent the limiting fork from falling off outwards, and a grout outlet hole and a seepage groove are arranged to increase the combination degree of grouting and an anchor rod body, so that the occlusion force between the anchor rod and a side slope is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of civil engineering, in particular to a supporting device for anchor rods in a deep foundation pit soil layer. Background Art

[0002] Foundation pit support refers to a series of measures implemented during earthwork construction to ensure the stability and safe construction of the foundation pit. When excavation is required, the soil support is destroyed, increasing the risk of soil instability and collapse. Foundation pit support is necessary to prevent soil collapse, protect surrounding buildings, and ensure the safety of workers.

[0003] At present, in the process of deep foundation pit support during construction, the holes formed by the anchor rods directly inserted into the soil and the anchor rods are relatively smooth, resulting in insufficient bite force between the anchor rods and the slope, and the anchor rods are not tightly combined with the deep foundation pit wall. If they become loose, it will not only endanger the construction project, but also affect the lives of construction workers. Utility Model Content

[0004] The technical problems to be solved by this utility model are:

[0005] In the existing technology, prefabricated anchor rods are directly inserted into the soil, which results in low friction, insufficient bite force between the anchor rods and the slope, and is prone to loosening.

[0006] In order to solve the above technical problems, the technical solution proposed in the utility model is: a support device for deep foundation pit soil anchor rods, including an anchor rod body, a pad and a nut, the nuts are provided in two groups, the pad is sleeved on the anchor rod body, the nut is threadedly connected to the anchor rod body, the anchor rod body is provided with a slot, and a limit fork is formed. When the anchor rod body is buried in the slope, the anchor rod body is pulled outward, and under relative action, the limit fork is inserted into the soil slope to generate a force to resist disengagement. After the pad is sleeved on the anchor rod body, the two groups of nuts are installed on the anchor rod body for limiting.

[0007] When in use, the limiting fork is opened, and the limiting fork and the anchor rod body are arranged obliquely.

[0008] Furthermore, the head of the anchor rod body is provided with a pointed tip.

[0009] Furthermore, the outer wall of the anchor rod body is provided with threads.

[0010] Furthermore, the interior of the anchor rod body is hollow and has slurry holes evenly distributed.

[0011] Furthermore, a seepage groove is provided on the anchor rod body.

[0012] Furthermore, the pad is in close contact with the outer wall of the deep foundation pit soil layer.

[0013] Furthermore, a grouting limit opening is provided on the anchor rod body.

[0014] The beneficial effects achieved by the utility model using the above structure are as follows:

[0015] By setting two sets of nuts for limiting, by setting a limiting fork to be inserted into the soil to prevent it from falling outwards, by setting slurry holes and seepage grooves, the bonding degree between the grouting and the anchor body is increased, thereby ensuring the bite force between the anchor and the slope. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of a support device for deep foundation pit soil anchor rods proposed by the utility model;

[0017] Figure 2 This is a diagram showing the use of a supporting device for anchor rods in a deep foundation pit soil layer proposed by the present invention;

[0018] Figure 3 This is a schematic structural diagram from a third angle of a support device for anchor rods in a deep foundation pit soil layer proposed by the present invention;

[0019] Figure 4 for Figure 1 A partial enlarged view of part A;

[0020] Figure 5 for Figure 2 A partial enlarged view of part B

[0021] Among them, 1. Anchor body, 2. Base plate, 3. Nut, 4. Pointed head, 5. Grouting limit port, 6. Thread, 7. Seepage groove, 8. Slurry outlet hole, 9. Limit fork.

[0022] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0024] like Figure 1-5As shown, the utility model proposes a support device for deep foundation pit soil anchor rods, including an anchor rod body 1, a pad 2 and a nut 3. Two groups of nuts 3 are provided. In order to facilitate the installation of the nuts 3, a grouting limit port 5 is provided on the anchor rod body 1. The pad 2 is sleeved on the anchor rod body 1. The pad 2 is tightly attached to the outer wall of the deep foundation pit soil layer. The nut 3 is threadedly connected to the anchor rod body 1. When the anchor rod body 1 is buried in the slope, the anchor rod body 1 is pulled outward. Under relative action, the limiting fork 9 is inserted into the soil slope to generate a force to resist disengagement, thereby improving the stability of the support. After the pad 2 is sleeved on the anchor rod body 1, the two groups of nuts 3 are installed on the anchor rod body 1 for limiting.

[0025] The anchor rod body 1 is provided with a slot and forms a limit fork 9. When in use, the limit fork 9 is opened, and the limit fork 9 and the anchor rod body 1 are arranged at an angle.

[0026] In order to facilitate embedding in the slope, the head of the anchor body 1 is provided with a pointed head 4.

[0027] In order to increase the bite force, improve the contact area and thus increase the friction, the outer wall of the anchor body 1 is provided with a thread 6.

[0028] In order to facilitate uniform grouting, the interior of the anchor body 1 is hollow and the grouting holes 8 are evenly distributed.

[0029] In order to increase traction from the inside and improve stability, the anchor body 1 is provided with a seepage groove 7. Grouting seeps out from the seepage groove 7 and intersects with the anchor body 1, making it less likely to loosen.

[0030] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0031] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

[0032] The above description of the present invention and its embodiments is non-limiting. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by the above, and does not deviate from the purpose of the present invention, without inventive design, a structure and embodiment similar to the technical solution should fall within the scope of protection of the present invention.

Claims

1. A support device for anchor rods in deep foundation pit soil, characterized by: The invention comprises an anchor rod body (1), a pad (2) and a nut (3), wherein the nut (3) is provided with two groups, the pad (2) is sleeved on the anchor rod body (1), the nut (3) is threadedly connected to the anchor rod body (1), the anchor rod body (1) is provided with a slot and forms a limiting fork (9), when the anchor rod body (1) is buried in the slope, the anchor rod body (1) is pulled outward, and the limiting fork (9) is inserted into the soil slope under relative action, generating a force to resist disengagement, and after the pad (2) is sleeved on the anchor rod body (1), the two groups of nuts (3) are installed on the anchor rod body (1) for limiting.

2. A support device for anchor rods in a deep foundation pit soil layer according to claim 1, characterized in that: The limiting fork (9) and the anchor rod body (1) are arranged at an angle.

3. The support device for anchor rods in deep foundation pit soil according to claim 2, characterized in that: The head of the anchor rod body (1) is provided with a pointed head (4).

4. A support device for anchor rods in a deep foundation pit soil layer according to claim 3, characterized in that: The outer wall of the anchor rod body (1) is provided with a thread (6).

5. The support device for deep foundation pit soil anchor rods according to claim 4, characterized in that: The interior of the anchor rod body (1) is hollow, and the slurry holes (8) are evenly distributed.

6. The support device for anchor rods in deep foundation pit soil according to claim 5, characterized in that: The anchor rod body (1) is provided with a seepage groove (7).

7. A support device for anchor rods in a deep foundation pit soil layer according to claim 6, characterized in that: The pad (2) is in close contact with the outer wall of the soil layer of the deep foundation pit.

8. The support device for deep foundation pit soil anchor rods according to claim 7, characterized in that: The anchor rod body (1) is provided with a grouting limit opening (5).

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