Soil nailing reinforcing device for composite soil nailing wall supporting system

Abstract

The utility model belongs to the technical field of foundation pit supporting engineering construction, and particularly relates to a soil nail reinforcing device for a composite soil nail wall supporting system. The fixing parts are linearly arrayed on the side wall of the soil nail in the central axis direction of the soil nail; the positioning clamp is arranged between the fixing parts and is connected with the fixing parts; and the fixing part is tightly held on the side wall of the soil nail through the annular clamp. The soil nailing wall supporting structure solves the problems that due to the fact that an existing soil nailing wall supporting structure adopts the mode that a positioning clamp is welded to a soil nail, the problem that the positioning clamp falls off due to the fact that a welding seam is not fused exists, the engineering quality of a composite soil nailing wall supporting system is affected, and serious potential quality hazards are caused.

Description

Technical Field

[0001] This utility model belongs to the field of construction technology of foundation pit support engineering, and specifically relates to a soil nailing strengthening device for composite soil nailing wall support system. Background Technology

[0002] Soil nailing walls are a type of retaining structure used for soil reinforcement. They prevent landslides and maintain soil stability by inserting steel nails or other materials into the soil. Highly adaptable, they are widely used in underground engineering, bridge and road construction, helping to improve project safety and reduce construction costs.

[0003] Currently, application number 201320363006.6 discloses a 360-degree anchor locator for soil nailing walls, comprising Ω-shaped reinforcing bars and 240-degree open circular reinforcing bars. Its key feature is that the 360-degree anchor locator is shaped like a basket, with three Ω-shaped reinforcing bars positioned at 120-degree angles to each other in space. The ends of the three Ω-shaped reinforcing bars are vertically welded to the 240-degree open circular reinforcing bars. During installation, the position for fixing the 360-degree anchor locator is marked on the anchor rod. Then, the 240-degree open circular reinforcing bars of the 360-degree anchor locator are welded to the anchor rod, and the anchor rod is then placed into the hole in the soil nailing wall.

[0004] While existing soil nailing wall support structures can achieve soil reinforcement, the method of fixing the positioning clips to the soil nails by welding requires a high level of skill from the welders. Furthermore, incomplete weld fusion can cause the positioning clips to fall off, making it difficult to guarantee welding quality. This is labor-intensive and time-consuming, affecting the engineering quality of the composite soil nailing wall support system and posing significant quality risks to the safety of the foundation pit slope. Utility Model Content

[0005] The purpose of this invention is to provide a soil nailing reinforcement device for composite soil nailing wall support systems that achieves stable and non-welding fixation of positioning clips and soil nails.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A soil nailing reinforcement device for a composite soil nailing wall support system, comprising:

[0008] Soil nails;

[0009] Fixing components: linearly arranged on the sidewalls of the soil nail along the central axis of the soil nail;

[0010] Positioning clip: disposed between the fixed components and connected to the fixed components;

[0011] Annular clamp: The fixed component is held tightly to the side wall of the soil nail by the annular clamp.

[0012] Further, the middle part of the positioning card is convex in the direction away from the soil nail, and the convex part is in a ladder shape.

[0013] Further, the convex part of the positioning card is sleeved with a hollow cylinder, and the surface of the hollow cylinder is provided with a tooth-shaped barb.

[0014] Further, n positioning cards are arranged on one side of the soil nail, and n-1 positioning cards are arranged on the opposite side of the soil nail, and the convex parts of the positioning cards at least partially coincide in the projection on the soil nail axis.

[0015] Further, the fixing part comprises a double-barrel fixing card and a single-barrel fixing card, the end of the adjacent positioning card is a connecting end, and the other end is a free end, the connecting end is connected by the double-barrel fixing card, and the free end is connected with the single-barrel fixing card.

[0016] Further, the inside of the double-barrel fixing card and the single-barrel fixing card is provided with a tapered groove for connecting with the positioning card.

[0017] Further, the inner diameter of the hollow cylinder is greater than the diameter of the positioning card, and the inner diameter of the double-barrel fixing card and the single-barrel fixing card is greater than the diameter of the positioning card.

[0018] Further, the inner wall of the annular clamp is provided with irregular dimples for enhancing friction.

[0019] Compared with the prior art, the utility model has the beneficial effects that:

[0020] 1. The utility model discloses a fixing part is linearly arranged along the axis of the soil nail and on the side wall, so as to connect the positioning card between the fixing parts, and finally the fixing part is tightly held on the side wall of the soil nail by the annular clamp, which replaces the traditional direct welding of the positioning card on the soil nail, solves the problem of easy falling of the positioning card caused by welding and time-consuming engineering, and enhances the connection strength of the soil nail and the cement slurry through the combination of multiple components, thereby guaranteeing the engineering quality of the composite soil nail supporting structure.

[0021] 2. The utility model discloses that the surface of the hollow cylinder sleeved on the convex part of the positioning card is provided with a tooth-shaped barb and is integrally injection molded as an anti-backup structure, and the inner wall of the annular clamp is provided with irregular dimples, which improves the friction coefficient of the soil nail in the soil, enhances the self-standing property of the soil, improves the pullout resistance of the soil nail, enhances the connection strength of the soil nail and the cement slurry, maximally restricts the deformation of the foundation pit, and improves the safety and stability of the foundation pit slope. BRIEF DESCRIPTION OF DRAWINGS

[0022] Fig. 1 It is a front view of the utility model;

[0023] Fig. 2 The top view of the utility model.

[0024] In the figure: 1, soil nail; 2, annular clamp; 3, hollow cylinder; 30, toothed barb; 4, fixed component; 40, double-barrel fixed clamp; 41, single-barrel fixed clamp; 400, tapered groove; 5, positioning clamp. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, purposes and effects realized by the utility model easy to understand, the utility model is further described below in combination with specific embodiments, but the following embodiments are only preferred embodiments of the utility model and not all. Based on the embodiments in the embodiments, other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model. The experimental methods in the following embodiments are conventional methods, and the materials, reagents and the like used in the following embodiments can be obtained from commercial channels unless otherwise specified.

[0026] For example, Figs. 1-2 In the embodiment, it includes: soil nail 1, fixed component 4, positioning clamp 5 and annular clamp 2.

[0027] The fixed component 4 is linearly arrayed on the side wall of the soil nail 1 along the central axis direction of the soil nail 1, and the positioning clamp 5 is arranged between the fixed components 4 and connected with the fixed components 4.

[0028] It should be noted that the fixed component 4 is divided into two kinds: double-barrel fixed clamp 40 and single-barrel fixed clamp 41; the positioning clamp 5 is arranged on one side and the opposite side of the soil nail 1 respectively, assuming that the former is a side a and the opposite side is a side b, then two positioning clamps 5 are arranged on the side a respectively, and one positioning clamp 5 is arranged on the side b; the double-barrel fixed clamp 40 is responsible for connecting the connecting end of adjacent positioning clamps 5, and the single-barrel fixed clamp 41 is responsible for connecting the free end without adjacent positioning clamps 5.

[0029] The fixed component 4 is tightly held on the side wall of the soil nail 1 by the annular clamp 2.

[0030] It should be noted that the middle part of the positioning clamp 5 is convex in the direction away from the soil nail 1, and the convex part is in a ladder shape, and the projection of each positioning clamp 5 on the axis of the soil nail 1 at least partially overlaps.

[0031] Specifically, first, the single-cylinder fixed card 41 is fixed together with the soil nail 1 through the annular clamp 2, then one end of the positioning card 5 is inserted into the hole position of the single-cylinder fixed card 41, then the connecting end of the positioning card 5 is connected with the double-cylinder fixed card 40, and the soil nail 1 is also fixed through the annular clamp 2, and finally the other end of the positioning card 5 is inserted into the double-cylinder fixed card 40, and the soil nail 1 is fixed through the single-cylinder fixed card 41. At this time, the work on the a side is completed, and because of the limitation of the three annular clamps 2, the two single-cylinder fixed cards 41 can only be placed on the opposite positions of the two positioning cards 5 on the a side, and finally the fixing on the b side is completed through the fixing of the annular clamp 2.

[0032] In this embodiment, the inner wall of the annular clamp 2 is provided with irregular dots, and the protruding part of the positioning card 5 is sleeved with a hollow cylinder 3, and the surface of the hollow cylinder 3 is provided with a tooth-shaped barb 30;

[0033] It should be noted that the tooth-shaped barb 30 and the hollow cylinder 3 are integrally injection molded as an anti-reverse structure;

[0034] Specifically, on the one hand, the surface of the hollow cylinder 3 is provided with a tooth-shaped barb 30, and is integrally injection molded as an anti-reverse structure, and on the other hand, irregular dots are arranged on the inner wall of the annular clamp 2, so as to improve the friction coefficient of the soil nail 1 in the soil, enhance the self-standing property of the soil, improve the pullout resistance of the soil nail 1, enhance the connection strength of the soil nail 1 and the cement slurry, and maximize the constraint of the deformation of the foundation pit, and improve the safety and stability of the foundation pit slope.

[0035] In this embodiment, the inside of the double-cylinder fixed card 40 and the single-cylinder fixed card 41 is provided with a tapered groove 400 for connecting with the positioning card 5, and the diameter of the slot is greater than the diameter of the positioning card 5;

[0036] It should be noted that by designing the tapered groove 400, the positioning card 5 is not easy to slide out or displace during work, which is particularly important for accurate work. In addition, by designing the diameter of the slot to be greater than the diameter of the positioning card 5, the positioning card 5 and the fixed part 4 are quickly connected, so as to adapt to positioning cards 5 of different diameters.

[0037] In this embodiment, the inner diameter of the hollow cylinder 3 is greater than the diameter of the positioning card 5.

[0038] Installation process:

[0039] Before construction, firstly, according to design requirements and site conditions, the installation position of the soil nail 1 is determined, and the position fixed by each positioning card 5 is designed, after the above preparation work is completed, the prepared single cylinder fixing card 41, double cylinder fixing card 40, positioning card 5 and annular clamp 2 are assembled with the soil nail 1 as a whole; secondly, during construction, the fixed positioning card 5 is used to guide the direction and depth of drilling. Since the positioning card 5 and the soil nail 1 are fixed together, during the drilling process, the positioning card 5 will help to ensure that the position, depth and angle of the hole meet the design requirements; after the drilling is completed, the soil nail 1 is directly inserted into the hole, and then the grouting material is uniformly grouted into the gap between the foundation pit and the soil nail 1 through special equipment; finally, the fluidity and compactness of the grouting material are checked to ensure that the design requirements are met.

[0040] The basic principle, main features and advantages of the utility model are shown and described above. It should be understood by those skilled in the art that the utility model is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only preferred examples of the utility model and are not intended to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model can have various changes and improvements, and these changes and improvements all fall within the scope of the claimed utility model. The scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. A soil nail reinforcing device for a composite soil nailed wall support system, characterised in that, The utility model relates to a soil nail (1) and a fixing component (4) are arranged on the side wall of the soil nail (1) and are connected by a positioning card (5) and a ring-shaped clamp (2). The positioning card (5) is arranged between the fixing components (4) and is connected with the fixing components (4). The ring-shaped clamp (2) is arranged on the side wall of the soil nail (1) and is connected with the positioning card (5). The positioning card (5) is arranged between the fixing components (4) and is connected with the fixing components (4). The ring-shaped clamp (2) is arranged on the side wall of the soil nail (1) and is connected with the positioning card (5).

2. A soil nail reinforcing device for a composite soil nailed wall support system according to claim 1, characterised in that: The positioning card (5) is arranged between the fixing components (4) and is connected with the fixing components (4).

3. A soil nail reinforcing device for a composite soil nailed wall support system according to claim 2, characterised in that: The positioning card (5) is arranged between the fixing components (4) and is connected with the fixing components (4).

4. A soil nail reinforcing device for a composite soil nailed wall support system according to claim 3, characterised in that: The positioning card (5) is arranged between the fixing components (4) and is connected with the fixing components (4).

5. A soil nail reinforcing device for a composite soil nailed wall support system according to claim 4, characterised in that: The positioning card (5) is arranged between the fixing components (4) and is connected with the fixing components (4).

6. A soil nail reinforcing device for a composite soil nailed wall support system according to claim 5, characterised in that: The positioning card (5) is arranged between the fixing components (4) and is connected with the fixing components (4).

7. A soil nail reinforcing device for a composite soil nailed wall support system according to claim 5, characterised in that: The positioning card (5) is arranged between the fixing components (4) and is connected with the fixing components (4).

8. A soil nail reinforcing device for a composite soil nailed wall support system according to claim 1, characterised in that: The positioning card (5) is arranged between the fixing components (4) and is connected with the fixing components (4). The positioning card (5) is arranged between the fixing components (4) and is connected with the fixing components (4). The positioning card (5) is arranged between the fixing components (4) and is connected with the fixing components (4). The positioning card (5) is arranged between the fixing components (4) and is connected with the fixing components (4). The positioning card (5) is arranged between the fixing components (4) and is connected with the fixing components (4). The positioning card (5) is arranged between the fixing components (4) and is connected with the fixing components (4). The positioning card (5) is arranged between the fixing components (4) and is connected with the fixing components (4). The positioning card (5) is arranged between the fixing components (4) and is connected with the fixing components (4). The positioning card (5) is arranged between the fixing components (4) and is connected with the fixing components (4). The positioning card (5) is arranged between the fixing components (4) and is connected with the fixing components (4). The positioning card (5) is arranged between the fixing components (4) and is connected with the fixing components (4). The positioning card (5) is arranged between the fixing components (4) and is connected with the fixing components (4). The positioning card (5) is arranged between the fixing components (4) and is connected with the fixing components (4). The positioning card (5) is arranged between the fixing components (4) and is connected with the fixing components (4). The positioning card (5) is arranged between the fixing components (4) and is connected with the fixing components (4). The positioning card (5) is arranged between the fixing components (4) and is connected with the fixing components (4). The positioning card (5) is arranged between the fixing components (4) and is connected with the fixing components (4). The positioning card (5) is arranged between the fixing components (4) and is connected with the fixing components (4). The positioning card (5) is arranged between the fixing components (4) and is connected with the fixing components (4). The positioning card (5) is arranged between the fixing components (4) and is connected with the fixing components (4). The positioning card (5) is arranged between the fixing components (4) and is connected with the fixing components (4). The positioning card (5) is arranged between the fixing components (4) and is connected with the fixing components (4). The positioning card (5) is arranged between the fixing components (4) and is connected with the fixing components (4). The positioning card (5) is arranged between the fixing components (4) and is connected with the fixing components (4). The positioning card (5) is arranged between the fixing components (4) and is connected with the fixing components (4). The positioning card (5) is arranged between the

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