Anti-floating anchor rod and mounting structure thereof

Abstract

The utility model belongs to the technical field of underground engineering, and particularly relates to an anti-floating anchor rod and a mounting structure thereof, the anti-floating anchor rod comprises an anchor rod body, a sleeve assembly and a plurality of groups of positioning supports, and the plurality of groups of positioning supports are uniformly arranged at an embedded end of the anchor rod body along the length direction of the anchor rod body; the sleeve assembly is arranged at the exposed end of the anchor rod body in a sleeving mode, and an anchor plate is further arranged at the top of the sleeve assembly, arranged at the top end of the anchor rod body in a sleeving mode and fixed to the top of the sleeve assembly through a locking assembly. During installation, the conventional process is broken, positioning drilling construction is innovatively carried out on the foundation concrete cushion layer, the structure is simple, the construction speed is high, and the cost is low; the pre-reserved protective soil layer does not need to be manually cleaned, the anchor rod body does not need to be cut again, and time and labor are saved.

Description

Technical Field

[0001] The utility model belongs to the technical field of underground engineering, and specifically relates to an anti-floating anchor rod and a mounting structure thereof. Background Art

[0002] An anti-floating anchor is a tension rod buried deep in the soil. One end of it is connected to the engineering structure and the other end is anchored in the soil. It resists the buoyancy of groundwater on underground projects through the bonding force between the rod and the soil.

[0003] In recent years, my country's rainfall has increased year by year, and the groundwater level has been rising from the coast to the inland, causing the underground projects outside the high-rise building towers in inland areas to float slightly, and water gushing in a weak link of the foundation slab, which seriously affected the use function and structural safety of the project and caused huge losses to the owners. The conventional anti-floating anchor rod process is complicated, and after the anchor rod is grouting and forming, it is necessary to manually clean the reserved protective soil layer and cut the anchor rod consolidation body to the design elevation. The construction speed is slow and the construction cost is high. Utility Model Content

[0004] The utility model aims to overcome the deficiencies of the prior art and provide an anti-floating anchor rod and its installation structure, which has simple structure, fast construction speed, low cost and can effectively prevent groundwater from rising along the cracks in the hole wall of the anti-floating anchor rod.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: an anti-floating anchor rod, comprising an anchor rod body, a sleeve assembly and several groups of positioning brackets, wherein the several groups of positioning brackets are evenly arranged at the embedded end of the anchor rod body along the length direction of the anchor rod body; the sleeve assembly is sleeved on the exposed end of the anchor rod body, and an anchor plate is also provided on the top of the sleeve assembly, and the anchor plate is sleeved on the top of the anchor rod body and fixed to the top of the sleeve assembly by a locking assembly.

[0006] Preferably, the anchor rod body is provided with threads throughout.

[0007] Preferably, the sleeve assembly comprises a waterstop wing ring sleeve and a waterstop wing ring steel plate, the waterstop wing ring sleeve is sleeved on the exposed end of the anchor rod body, and the waterstop wing ring steel plate is sleeved on the middle part of the waterstop wing ring sleeve.

[0008] Preferably, the locking assembly is at least one locking nut, and the locking nut is threadedly connected to the anchor body.

[0009] Preferably, a through hole is provided at the top of the anchor plate, and the exposed end of the anchor rod body is arranged to pass through the through hole.

[0010] An anti-floating anchor rod installation structure is provided, wherein a positioning hole is opened on a foundation concrete cushion layer, a finished hole is opened in an underground soil layer through the positioning hole, the embedded end of the anchor rod body of the anti-floating anchor rod passes through the positioning hole and is placed in the finished hole, and the bottom of the sleeve assembly is connected to the foundation concrete cushion layer.

[0011] Preferably, a plurality of groups of positioning brackets on the anchor body are spaced apart from the inner wall of the hole.

[0012] Preferably, the positioning hole is coaxial with the forming hole and has the same diameter as the forming hole.

[0013] Preferably, a waterproof layer is provided between the sleeve assembly sleeved outside the anchor rod body and the foundation concrete cushion layer.

[0014] Compared with the prior art, the above technical solution has the following beneficial effects:

[0015] 1. The utility model has a simple structure and convenient construction. The sleeve assembly is directly sleeved on the anchor body. There is no need to manually clean the reserved protective soil layer and there is no need to cut the anchor body. It saves time and effort, meets the needs of water stopping and anti-floating, and is safe and environmentally friendly.

[0016] 2. The water-stop wing ring sleeve is arranged outside the anchor body and on the top of the foundation concrete cushion layer. The waterproof layer is turned up to the bottom of the water-stop wing ring steel plate to form a complete underground waterproof and anti-floating system, which effectively prevents groundwater from surging along the gap between the anchor body and the drilled hole.

[0017] 3. The utility model breaks the convention and innovatively performs positioning drilling construction on the foundation concrete cushion layer. The anchor rod body is directly set in the hole, with a simple structure, fast construction speed and low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the installation structure of the anti-floating anchor rod of the utility model.

[0019] Figure 2 for Figure 1 Enlarged view of point A in the middle.

[0020] Figure 3 This is the hole positioning diagram of the utility model.

[0021] Figure 4 This is a hole-forming diagram of the drilling rig of the present utility model.

[0022] Figure 5 This is a diagram of anchor rod implantation of the present utility model.

[0023] Among them: 1. Anchor body; 2. Waterstop wing ring sleeve; 3. Waterstop wing ring steel plate; 4. Foundation concrete cushion layer; 5. Positioning bracket; 6. Underground soil layer; 7. Hole forming; 8. Waterproof layer; 9. Anchor plate; 10. Locking nut; 11. Positioning hole; 12. Hole expansion drill; 13. Drilling rig; 14. Grouting pipe; 15. Epoxy resin glue. DETAILED DESCRIPTION

[0024] Figures 1 to 5It is the best embodiment of the utility model, and the following Figures 1 to 5 The utility model is further described.

[0025] like Figure 1 As shown, an anti-floating anchor rod of the utility model includes an anchor rod body 1, a sleeve assembly and a plurality of groups of positioning brackets 5. The anchor rod body 1 is provided with threads throughout, and the plurality of groups of positioning brackets 5 are evenly arranged on three relatively surfaces of the embedded end of the anchor rod body 1 along the length direction of the anchor rod body 1. The sleeve assembly is sleeved on the exposed end of the anchor rod body 1, and an anchor plate 9 is also provided on the top of the sleeve assembly. The anchor plate 9 is sleeved on the top of the anchor rod body 1 and fixed to the top of the sleeve assembly by a locking assembly. The utility model has a simple structure and is convenient to construct. The sleeve assembly is directly sleeved on the outside of the anchor rod body 1. There is no need to manually clean the reserved protective soil layer, and there is no need to cut the anchor rod body 1 again, which saves time and effort, meets the requirements of water stopping and anti-floating, and is safe and environmentally friendly.

[0026] Further, the sleeve assembly includes a water stop wing ring sleeve 2 and a water stop wing ring steel plate 3, the water stop wing ring sleeve 2 is sleeved on the exposed end of the anchor body 1, and the water stop wing ring steel plate 3 is sleeved on the middle part of the water stop wing ring sleeve 2. Applying epoxy resin glue 15 on the top of the water stop wing ring sleeve 2 can not only fix the water stop wing ring sleeve 2, but also play a certain waterproof role.

[0027] Combination Figure 2 The locking assembly is at least one locking nut 10, which is threadedly connected to the exposed end of the anchor body 1. In this embodiment, two locking nuts 10 are provided, so that the anchor plate 9 is fixed more firmly. A through hole is opened at the top of the anchor plate 9, and the exposed end of the anchor body 1 passes through the through hole, and the locking nut 10 is installed above the anchor plate 9. In this embodiment, the anchor plate 9 is square steel, with a simple structure and convenient manufacturing.

[0028] See also Figures 1 to 5 The utility model also provides an anti-floating anchor rod installation structure, in which a positioning hole 11 is opened on the foundation concrete cushion layer 4, and a hole 7 is opened in the underground soil layer 6 through the positioning hole 11. In the present embodiment, the positioning hole 11 is coaxial with the hole 7 and has the same diameter. The embedded end of the anchor rod body 1 of the anti-floating anchor rod passes through the positioning hole 11 and is placed in the hole 7. The bottom of the sleeve assembly is connected to the foundation concrete cushion layer 4, and the gap between the sleeve assembly and the foundation concrete cushion layer is sealed by applying epoxy resin glue 15. The utility model breaks the convention and innovatively performs positioning drilling construction on the foundation concrete cushion layer 4. It has a simple structure, fast construction speed, low cost, and effectively prevents groundwater from rising along the gaps in the hole wall.

[0029] Specifically, several groups of positioning brackets 5 on the anchor body 1 are spaced apart from the inner wall of the hole 7. In this embodiment, the spacing between the positioning brackets 5 and the inner wall of the hole 7 is 20 mm. The positioning brackets 5 are arc-shaped steel bars, both ends of which are welded to the anchor body 1. The positioning brackets 5 prevent the anchor body 1 from being skewed or shifted when it is placed in the hole 7.

[0030] Furthermore, a waterproof layer 8 is provided on the foundation concrete cushion layer 4, and the waterproof layer 8 is turned up to the bottom of the water-stop wing ring steel plate 3. The waterproof layer 8 adopts SBS water-release coiled material to prevent groundwater from rising. In this embodiment, grouting is poured between the embedded end of the anchor body 1 and the hole 7, and expansion concrete is poured between the exposed end of the anchor body 1 and the sleeve assembly.

[0031] The use process of the utility model is as follows: a positioning hole 11 is opened on the foundation concrete cushion layer 4 by using a hole reamer 12. After the drilling machine 13 is in place, the drilling machine 13 opens a hole 7 in the underground soil layer 6 along the positioning hole 11, and a positioning bracket 5 is welded on the anchor body 1. The secondary grouting pipe 14 and the anchor body 1 are placed in the hole 7 at the same time, and the hole is quickly cleaned, and grouting is performed to the bottom elevation of the groove and the lower part of the foundation concrete cushion layer 4. After the secondary grouting is completed and the design requirements are met after acceptance and inspection, the water stop wing ring sleeve 2 is sleeved on the outer periphery of the exposed anchor body 1. After adjustment in place, the expansion concrete is poured into the water stop wing ring sleeve 2, and the gap between the bottom of the water stop wing ring sleeve 2 and the foundation concrete cushion layer 4 and its inner wall is sealed by brushing epoxy resin glue 15. An anchor plate 9 is placed on the top of the water stop wing ring sleeve 2, and it is locked with the anchor body 1 by a locking nut 10. The water-stop wing ring sleeve 2 is connected to the anchor body 1 as a whole, and the basic waterproof layer 802 is turned up to the bottom of the water-stop wing ring steel plate 3 to form a complete underground engineering water-stopping and anti-floating system.

[0032] The utility model breaks the convention and innovatively performs positioning drilling construction on the foundation concrete cushion layer 4. It has a simple structure, fast construction speed, low cost, and effectively prevents groundwater from rising along the gap between the anchor body 1 and the hole 7. A water-stop wing ring sleeve 2 is arranged outside the anchor body 1 and on the upper part of the foundation concrete cushion layer 4, and the waterproof layer 8 is turned up to the bottom of the water-stop wing ring steel plate 3 to form a complete underground waterproof and anti-floating system, which effectively prevents groundwater from rising along the gap between the anti-anchor body 1 and the hole 7. The utility model has a simple structure and convenient construction. The water-stop wing ring sleeve 2 is directly sleeved on the outside of the anchor body 1, and there is no need to manually clean the reserved protective soil layer, and there is no need to cut the anchor body 1 again, which saves time and labor, meets the water-stopping and anti-floating requirements, and is safe and environmentally friendly.

[0033] The above is only the preferred embodiment of the utility model, and does not limit the utility model in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the utility model without departing from the technical solution of the utility model still belongs to the protection scope of the technical solution of the utility model.

Claims

1. An anti-floating anchor, characterized in that: The invention comprises an anchor rod body (1), a sleeve assembly and a plurality of groups of positioning brackets (5), wherein the plurality of groups of positioning brackets (5) are evenly arranged at the embedded end of the anchor rod body (1) along the length direction of the anchor rod body (1); the sleeve assembly is sleeved on the exposed end of the anchor rod body (1), an anchor plate (9) is further arranged on the top of the sleeve assembly, the anchor plate (9) is sleeved on the top of the anchor rod body (1) and is fixed to the top of the sleeve assembly by a locking assembly.

2. The anti-floating anchor rod according to claim 1, characterized in that: The anchor rod body (1) is provided with threads throughout.

3. The anti-floating anchor rod according to claim 1, characterized in that: The sleeve assembly comprises a water-stop wing ring sleeve (2) and a water-stop wing ring steel plate (3); the water-stop wing ring sleeve (2) is sleeved on the exposed end of the anchor rod body (1); and the water-stop wing ring steel plate (3) is sleeved on the middle part of the water-stop wing ring sleeve (2).

4. The anti-floating anchor rod according to claim 1, characterized in that: The locking assembly is at least one locking nut (10), and the locking nut (10) is threadedly connected to the anchor body (1).

5. The anti-floating anchor rod according to claim 1, characterized in that: A through hole is provided at the top of the anchor plate (9), and the exposed end of the anchor rod body (1) is arranged to pass through the through hole. 6.An anti-floating anchor rod installation structure, characterized in that: A positioning hole (11) is opened on the foundation concrete cushion layer (4), and a drilling hole (7) is opened in the underground soil layer (6) through the positioning hole (11). The embedded end of the anchor body (1) of the anti-floating anchor according to any one of claims 1 to 5 passes through the positioning hole (11) and is placed in the drilling hole (7), and the bottom of the sleeve assembly is connected to the foundation concrete cushion layer (4).

7. The anti-floating anchor rod installation structure according to claim 6, characterized in that: A plurality of groups of positioning brackets (5) on the anchor rod body (1) are arranged at intervals from the inner wall of the hole (7).

8. The anti-floating anchor rod installation structure according to claim 6, characterized in that: The positioning hole (11) is coaxial with the forming hole (7) and has the same diameter.

9. The anti-floating anchor rod installation structure according to claim 6, characterized in that: A waterproof layer (8) is also provided between the sleeve assembly sleeved outside the anchor rod body (1) and the foundation concrete cushion layer (4).

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