Soil nail support device

Abstract

The utility model discloses a soil nail support device, which belongs to the technical field of soil nail wall foundation pit support, and solves the problems of complex operation and unstable connection in the prior art. The soil nail support device includes: a support frame, including a first support rod, a second support rod and a third support rod; the first support rod is configured to provide radial support force for the soil nail; the two ends of the first support rod are respectively connected to the second support rod; the second support rods connected to different first support rods are connected through the third support rod; wherein the first support rod, the second support rod and the third support rod are integrally formed. The utility model adopts the integrally formed first support rod, the second support rod and the third support rod to form a support frame, which avoids the strength loss during the welding process, has higher overall strength, simple process and more stable support.

Description

Technical Field

[0001] The utility model belongs to the technical field of soil nail wall foundation pit support, and in particular relates to a soil nail supporting device. Background Art

[0002] Soil nailing is an in-situ soil reinforcement technology that uses slender metal components such as steel bars or steel pipes as rods or tubes to be placed in the ground. They are then integrated with the soil layer through grouting. A steel mesh is laid on the surface and then a layer of concrete surface is sprayed on the surface. This reinforced support construction method is combined with the earth slope to restrain soil deformation and strengthen the slope.

[0003] Soil nails usually require a centering bracket as a supporting device to enhance the stability of the overall structure of the soil nail wall and ensure that the circumference of the soil nail rod is evenly wrapped by the grouting anchor body, thereby enhancing the pull-out bearing capacity of the soil nail; the soil nail support device in the existing technology is usually a boat-shaped bracket welded along the circumference of the soil nail. On the one hand, when the boat-shaped bracket is welded to the soil nail, the strength of the soil nail rod will be damaged; on the other hand, the welding connection between the boat-shaped bracket and the soil nail rod is time-consuming and labor-intensive, and the welding quality is difficult to guarantee; there are technical problems such as complex operation and unstable support. Utility Model Content

[0004] In view of the above analysis, the embodiments of the present invention aim to provide a soil nail support device to solve one or more of the above problems existing in the prior art.

[0005] The purpose of this utility model is achieved in this way:

[0006] A soil nail support device, comprising:

[0007] The support frame includes a first support rod, a second support rod and a third support rod; the first support rod is configured to provide radial support force for the soil nail; the second support rods are connected to both ends of the first support rod; the second support rods connected to different first support rods are connected by the third support rod;

[0008] Wherein, the first support rod, the second support rod and the third support rod are integrally formed.

[0009] Furthermore, the first support rod is arc-shaped, and the radius of the arc is 3-4 times the radius of the soil nail.

[0010] Furthermore, the angle between the second support rod and the soil nail radial direction is 15°-20°.

[0011] Furthermore, the length of the third support rod is 2-2.5 times the length of the second support rod.

[0012] Furthermore, a fixing piece is provided on the first support rod, and the fixing piece is used to cooperate with a binding strap to connect the soil nail to the first support rod.

[0013] Furthermore, it also includes: a protective piece, which is semicircular and has an opening facing the soil nail.

[0014] Furthermore, the protective member is coaxially arranged with the soil nail.

[0015] Furthermore, the support frame and the protective element are connected through the third support rod.

[0016] Furthermore, a plurality of support frames are evenly arranged on the inner wall of the protective member at preset intervals.

[0017] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0018] The soil nail support device provided by the utility model adopts an integrally formed first support rod, a second support rod and a third support rod to form a support frame, which avoids strength loss during welding, has higher overall strength, simple process and more stable support. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of this specification or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the embodiments of this specification. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0020] Figure 1 This is a schematic structural diagram of the soil nail support device provided by the utility model;

[0021] Figure 2 for Figure 1 An enlarged view of one end of the middle support device.

[0022] Reference numerals:

[0023] 1-support frame; 11-first support rod; 12-second support rod; 13-third support rod; 2-soil nail; 3-protective element. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, 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 part of the embodiments of the present invention, not all of the embodiments. It should be noted that, in the absence of conflict, the embodiments and features in the embodiments disclosed in this disclosure can be combined, separated, interchanged and / or rearranged with each other. Based on the embodiments in 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.

[0025] In the accompanying drawings, the sizes and relative sizes of components may be exaggerated for clarity and / or descriptive purposes. When the exemplary embodiments can be implemented differently, the specific process sequence may be performed in a different order than described. For example, two processes described in succession may be performed substantially simultaneously or in a reverse order from the described order. In addition, the same reference numerals represent the same components.

[0026] Example 1

[0027] A specific embodiment of the present invention is as follows Figure 1-2 As shown, a soil nail support device is disclosed, comprising:

[0028] The support frame 1 includes a first support rod 11, a second support rod 12, and a third support rod 13; the first support rod 11 is configured to provide radial support force for the soil nail 2; the second support rods 12 are connected to both ends of the first support rod 11; the second support rods 12 connected to different first support rods 11 are connected by the third support rod 13;

[0029] The first support rod 11 , the second support rod 12 and the third support rod 13 are integrally formed.

[0030] During implementation, first prepare the required materials for making the support frame 1 according to the construction environment and parameters such as the length and weight of the soil nails, then bend them into the first support rod 11, the second support rod 12 and the second support rod 13, so that the support frame 1 as a whole is in the shape of a horse stool, and finally place the soil nail 2 on the first support rod 11 and fix it to complete the installation work.

[0031] Exemplarily, the first support rod 11 , the second support rod 12 and the third support rod 13 are made of Φ6 steel bars.

[0032] Compared with the prior art, the soil nail support device provided in this embodiment uses an integrally formed first support rod, second support rod and third support rod to form a support frame, which avoids strength loss during welding, has higher overall strength, simpler process and more stable support.

[0033] In this embodiment, the first support rod 11 is arc-shaped, and the radius of the arc is 3-4 times the radius of the soil nail 2.

[0034] Specifically, the design of the first support rod 11 enables the support frame to better adapt to the shape of the soil nail, thereby providing a more uniform and stable supporting force during the support process. When the arc design provides radial support force for the soil nail 2, it ensures that the soil nail 2 is always located at the lowest point of the first support rod 11, ensuring the installation position of the soil nail 2 on the support frame 1 without excessive adjustment, and the installation is convenient and quick.

[0035] In this embodiment, the radial angle between the second support rod 12 and the soil nail 2 is 15°-20°.

[0036] Specifically, the design of the second support rod 12 takes into account the stability and mechanical properties of the soil nail support device in actual construction. The angle between the second support rod 12 and the radial direction of the soil nail is set to 15°-20°, which can effectively disperse the stress during the support process and avoid the second support rod from being deformed or damaged due to excessive force; at the same time, this angle setting also facilitates the installation and adjustment of the support frame during construction.

[0037] In this embodiment, the length of the third support rod 13 is 2-2.5 times the length of the second support rod 12 .

[0038] Specifically, the length of the third support rod 13 is designed to be 2-2.5 times the length of the second support rod 12, so that the entire support frame structure has better overall stability when supporting soil nails, ensuring that the support frame will not deform excessively when subjected to force, thereby improving the safety and reliability of the support system.

[0039] In some embodiments, a fixing piece is provided on the first support rod 11 , and the fixing piece is used to cooperate with a binding strap to connect the soil nail 2 to the first support rod 11 .

[0040] Specifically, the setting of the fixing device provides a reliable and simple method to fix the soil nail 2 on the first support rod 11. The design of the fixing device enables construction workers to complete the installation of the soil nail quickly and safely, significantly improving construction efficiency. At the same time, the coordinated use of the fixing device and the binding strap also ensures the stability of the soil nail on the support frame, preventing the soil nail from shifting when subjected to force.

[0041] In this embodiment, the soil nail supporting device further includes a protective member 3 , which is semicircular in shape and has an opening facing the soil nail 2 .

[0042] Exemplarily, the protective member 3 comprises a lightweight, high-strength material such as PVC. The secured support frame 1 and soil nail 2 are placed onto the protective member 3. Due to its smooth outer surface and large contact area with the drill hole, the soil nail 2 of the secured support frame 1 can be smoothly, quickly, and smoothly inserted into the drill hole. This avoids the situation in which, when inserting a conventional soil nail into a drill hole, the front end of the soil nail presses against the centering bracket due to its own weight, increasing the difficulty of inserting the soil nail. Furthermore, the soil nail, along with the centering bracket, can be wedged into the soil, causing it to deviate from its original position, resulting in exposed reinforcement or insufficient anchor thickness around the soil nail, affecting its overall strength. After the protective member 3 assists in inserting the soil nail 2 of the secured support frame 1 to the predetermined depth in the drill hole, the protective member 3 is removed for recycling without affecting the soil nail's strength.

[0043] In this embodiment, the protective member 3 and the soil nail 2 are coaxially arranged.

[0044] Specifically, the protective member 3 is coaxially arranged with the soil nail 2, ensuring that the support frame is evenly stressed when supporting the soil nail, so that the soil nail can maintain good stability when stressed, avoiding deformation or failure of the soil nail caused by eccentric stress. At the same time, this alignment design also simplifies the alignment operation during the construction process and improves the accuracy and efficiency of the construction.

[0045] In this embodiment, the support frame 1 and the protective member 3 are connected via the third support rod 13 .

[0046] Exemplarily, the protective member 3 takes the radial direction of the soil nail 2 as the symmetry axis, and the inner wall of the protective member 3 is connected to the outer surface of the third support rod away from the soil nail 2, so that the third support rods 13 distributed on both sides of the symmetry axis are subjected to uniform force as much as possible, thereby extending the service life of the support frame 1.

[0047] In this embodiment, a plurality of support frames 1 are evenly arranged on the inner wall of the protection tube 3 at preset intervals.

[0048] Specifically, the number and spacing of the support frames 1 determine whether the soil nails 2 can remain centered in the soil nail drill holes; a smaller number or larger spacing will cause the soil nails to fall due to their own gravity; a larger number or smaller spacing will increase costs and manpower consumption; therefore, it is more reasonable to set the support frames 1 on the protective pipe 3 at intervals of 1.5-2.0m along the length of the soil nails.

[0049] The specific implementation methods described above further illustrate the purpose, technical solutions and beneficial effects of the utility model in detail. It should be understood that the above description is only a specific implementation method of the utility model and is not intended to limit the scope of protection of the utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the utility model should be included in the scope of protection of the utility model.

Claims

1. A soil nail support device, characterized in that: include: A support frame (1) comprises a first support rod (11), a second support rod (12) and a third support rod (13); the first support rod (11) is configured to provide radial support force for the soil nail (2); both ends of the first support rod (11) are respectively connected to the second support rod (12); the second support rods (12) connected to different first support rods (11) are connected via the third support rod (13); Wherein, the first support rod (11), the second support rod (12) and the third support rod (13) are integrally formed.

2. The soil nail support device according to claim 1, characterized in that: The first support rod (11) is arc-shaped, and the radius of the arc is 3-4 times the radius of the soil nail (2).

3. The soil nail support device according to claim 2, characterized in that: The radial angle between the second support rod (12) and the soil nail (2) is 15°-20°.

4. The soil nail support device according to claim 2, characterized in that: The length of the third support rod (13) is 2-2.5 times the length of the second support rod (12).

5. The soil nail support device according to claim 1, characterized in that: The first support rod (11) is provided with a fixing piece, and the fixing piece is used to cooperate with a binding belt to connect the soil nail (2) to the first support rod (11).

6. The soil nail support device according to claim 1, characterized in that: Also includes: The protective member (3) is semicircular in shape and has an opening facing the soil nail (2).

7. The soil nail support device according to claim 6, characterized in that: The protective member (3) is coaxially arranged with the soil nail (2).

8. The soil nail support device according to claim 6, characterized in that: The support frame (1) and the protective element (3) are connected via the third support rod (13).

9. The soil nail support device according to claim 8, characterized in that: A plurality of support frames (1) are evenly arranged on the inner wall of the protective member (3) at preset intervals.

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