Device for enhancing waterproof quality of anti-floating anchor rod and construction method

Abstract

The invention discloses a device for enhancing the waterproof quality of an anti-floating anchor rod and a construction method, and belongs to the field of building engineering foundation construction, the device comprises a water stop ring, a grouting pipe, a steel bar and a structure main body, the grouting pipe and the steel bar are placed in the structure main body, and a cushion layer is arranged on the structure main body; waterproof coatings are coated on the end parts of the reinforcing steel bars at the anchor rods and the reinforcing steel bars within the range of not less than 50cm in the upper and lower areas of the cushion layer, water stop rings are arranged at the positions of the reinforcing steel bars at the anchor rods, water stop sleeves are additionally arranged at the junctions of the anchor rods and the cushion layer, waterproof roll additional layers are additionally arranged at the junctions of the cushion layer and the anchor rods, and waterproof protection layers are poured on the waterproof rolls. According to the anti-floating anchor rod, various waterproof barriers are combined with one another, the waterproof quality of the anti-floating anchor rod can be effectively improved, and therefore the problem of water leakage caused by the fact that the waterproof range is too small in the traditional waterproof process or due to influences of other factors such as vibration in the subsequent using process can be effectively solved.

Description

Technical Field

[0001] The invention relates to the technical field of foundation construction of building engineering, and in particular to a device and a construction method for enhancing the waterproof quality of an anti-floating anchor rod. Background Art

[0002] With the continuous development of the construction market, the number of buildings with deep foundations is also increasing. In order to effectively solve the impact of groundwater on buildings, anti-floating anchor rods frequently appear in the construction process of building foundations. However, the waterproof quality of the connection between the anti-floating anchor rod and the structural foundation often has a great impact on the waterproofing of the building foundation. In order to effectively solve the problem of construction leakage, people generally waterproof by applying waterproof coating around the steel bars of the anti-floating anchor rod and adding an additional waterproof layer during the construction process. However, the waterproof range of the existing waterproofing method is small. If the water level in the basement is relatively high and the water volume is very abundant, the waterproof effect at the node will be greatly affected due to excessive groundwater pressure and the influence of vibration and other factors during use. Therefore, it does not meet the existing needs. We propose a device and construction method for enhancing the waterproof quality of anti-floating anchor rods. Summary of the invention

[0003] The purpose of the present invention is to provide a device and a construction method for enhancing the waterproof quality of anti-floating anchor rods. By applying waterproof coating on the steel bars of the anti-floating anchor rods, the waterproof coating can prevent groundwater from flowing upward along the steel bars. A water-stop ring is added, and the water-stopping properties of the water-stop ring are used for waterproofing. A water-stop sleeve is added, and liquid waterproof material is filled in the water-stop sleeve to increase the waterproof range. A waterproof additional layer is set to enhance the waterproof effect, thereby solving the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a device for enhancing the waterproof quality of anti-floating anchor rods, comprising a waterstop ring, a grouting pipe, steel bars and a structural body, the grouting pipe and the steel bars are placed in the structural body, a grouting hole is opened on the structural body, the grouting hole and the grouting pipe are connected, a cushion layer is arranged on the structural body, waterproof coating is applied on the ends of the steel bars at the anchor rod and the steel bars within a range of not less than 50 cm above and below the cushion layer, a waterstop ring is arranged at the position of the steel bars at the anchor rod, the waterstop ring and the steel bars at the anchor rod are connected by welding, a waterstop sleeve is added at the junction of the anchor rod and the cushion layer, an additional layer of waterproof membrane is added at the junction of the cushion layer and the anchor rod, and a waterproof protective layer is cast on the waterproof membrane.

[0005] Furthermore, positioning steel bars are welded onto the steel bars.

[0006] Furthermore, the waterproof coating is used to prevent groundwater from seeping upward through the steel bars, and the top of the waterproof coating needs to exceed the top of the water stop ring.

[0007] Furthermore, the length of the water-stopping sleeve is greater than the thickness of the cushion layer, while the bottom of the water-stopping sleeve is lower than the bottom of the cushion layer, and the top of the water-stopping sleeve shall not be higher than the top of the cushion layer.

[0008] Furthermore, the waterproof protective layer is added within 250mm of the junction between the anti-floating anchor rod and the cushion layer.

[0009] A construction method for enhancing the waterproof quality of an anti-floating anchor rod is implemented using a device for enhancing the waterproof quality of an anti-floating anchor rod, comprising the following steps:

[0010] Step 1: According to the design requirements of the pre-made drawings, make the corresponding steel bar length and weld the positioning steel bars;

[0011] Step 2: Apply waterproof coating on the ends of the steel bars at the anchor rod and on the steel bars within a range of not less than cm above and below the cushion layer;

[0012] Step 3: After the anchor rod is made, start drilling, place the steel bars, and inject grout into the grouting hole through the grouting pipe;

[0013] Step 4: After grouting is completed, add a water stop sleeve at the junction of the anti-floating anchor rod and the cushion layer;

[0014] Step 5: After the water stop casing is fixed, start to construct the cushion layer;

[0015] Step 6: After the cushion layer is constructed, fill the waterproofing material into the waterproofing sleeve. The filling height of the waterproofing material is flush with the top of the cushion layer, and the top of the waterproofing sleeve is completely covered. At the same time, the waterproofing sleeve and the surrounding gaps are all filled with liquid waterproofing material;

[0016] Step 7: After the waterproof material is filled, start the construction of waterproof membrane. Before the waterproof membrane is constructed, clean the cushion layer, including removing dust, garbage and accumulated water. At the same time, add an additional layer of waterproof membrane at the intersection of the anchor rod and the cushion layer. After the waterproof membrane is constructed, pour the waterproof protective layer;

[0017] Step 8: After the strength of the waterproof protective layer meets the conditions for steel bar binding, the water stop ring is constructed. The water stop ring is set at a position not less than 10 cm from the bottom of the raft slab. At the same time, the water stop ring is connected to the steel bars at the anchor rod by welding;

[0018] Step 9: When tying the steel bars at the raft slab, simultaneously connect the steel bars at the anchor rods with the steel bars at the raft slab.

[0019] Furthermore, in the step 2, applying a waterproof coating on the steel bar specifically comprises the following steps:

[0020] Pre-treat the steel bars before applying waterproof coating, including degreasing, rust removal, grinding and cleaning;

[0021] When applying the waterproof coating, ensure that the waterproof coating is applied within a moderate construction temperature range of 15℃-25℃;

[0022] When applying waterproof coating on the surface of steel bars, a multi-layer coating method is adopted.

[0023] Furthermore, the steel bars are pre-treated before applying the waterproof coating, specifically:

[0024] Degreasing: Before applying waterproof coating, thoroughly clean the steel bar surface, including using detergent and water to remove grease or dirt on the steel bar surface;

[0025] Rust removal and grinding: After degreasing, use sandpaper or wire brush tools to remove rust on the surface of the steel bars;

[0026] Cleaning: After degreasing, rust removal and grinding, rinse the steel bars again with cleaning.

[0027] Furthermore, when applying waterproof coating on the surface of steel bars, a multi-layer coating method is adopted, which specifically includes the following steps:

[0028] Apply a layer of base waterproof coating on the surface of the steel bar;

[0029] After the bottom waterproof coating is dry, lay a layer of anti-cracking mesh cloth;

[0030] Then apply a second layer of waterproof coating on top of the anti-cracking mesh.

[0031] Compared with the prior art, the present invention has the following beneficial effects:

[0032] The present invention applies waterproof coating on the end of the anti-floating anchor rod and the steel bars within a range of not less than 50 cm above and below the cushion layer. The waterproof coating can effectively prevent groundwater from seeping upward through the steel bars. A water-stopping sleeve is added at the junction of the anti-floating anchor rod and the cushion layer, and waterproof material is filled into the water-stopping sleeve, thereby effectively solving the problem of groundwater being affected by water pressure or the influence of factors such as vibration during subsequent use on the waterproofing of the node, and better solving the problem of water leakage. By arranging a waterproof additional layer around the anchor rod, the waterproof additional layer can further enhance the waterproof effect. The combination of multiple waterproof barriers can effectively enhance the waterproof quality of the anti-floating anchor rod, thereby effectively solving the problem of water leakage caused by too small a waterproof range in the traditional waterproof process or the influence of other factors such as vibration during subsequent use. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of the structure of the enhanced waterproof anti-floating anchor rod of the present invention;

[0034] Figure 2 It is a cross-sectional view taken along line AA of the present invention;

[0035] Figure 3 The present invention is a flow chart of a construction method for enhancing the waterproof quality of an anti-floating anchor rod.

[0036] In the figure: 1. Waterstop ring; 2. Waterproof membrane; 3. Waterstop sleeve; 4. Waterproof coating; 5. Grouting pipe; 6. Steel bar; 7. Positioning steel bar; 8. Grouting hole; 9. Cushion layer; 10. Waterproof protective layer; 11. Main structure. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] In order to solve the problem that the existing waterproofing method has a small waterproofing range, if the basement water level is relatively high and the water volume is very abundant, the waterproofing effect at the joints will be greatly affected due to excessive groundwater pressure and the influence of vibration and other factors during use. Please refer to Figure 1-Figure 3 , this embodiment provides the following technical solutions:

[0039] A device for enhancing the waterproof quality of an anti-floating anchor comprises a water stop ring 1, a grouting pipe 5, steel bars 6 and a structural body 11. The grouting pipe 5 and the steel bars 6 are placed in the structural body 11. A grouting hole 8 is opened on the structural body 11. The grouting hole 8 is communicated with the grouting pipe 5. A cushion layer 9 is arranged on the structural body 11. A waterproof coating 4 is applied on the steel bars 6 within a range of not less than 50 cm at the end of the steel bars 6 at the anchor and above and below the cushion layer 9. A water stop ring 1 is arranged at the position of the steel bars 6 at the anchor. The water stop ring 1 and the steel bars 6 at the anchor are connected by welding. A water stop sleeve 3 is added at the junction of the anchor and the cushion layer 9. An additional layer of waterproof membrane 2 is added at the junction of the cushion layer 9 and the anchor. A waterproof protective layer 10 is cast on the waterproof membrane 2.

[0040] A construction method for enhancing the waterproof quality of an anti-floating anchor rod is implemented using a device for enhancing the waterproof quality of an anti-floating anchor rod, comprising the following steps:

[0041] Step 1: According to the design requirements of the pre-made drawings, produce the corresponding length of the steel bars 6 and weld the positioning steel bars 7;

[0042] Step 2: Apply waterproof coating 4 on the ends of the steel bars 6 at the anchor rod and on the steel bars 6 within a range of not less than 50 cm above and below the cushion layer 9. The waterproof coating 4 can be applied with a flexible brush. The application process should be even and without omission.

[0043] Step 3: After the anchor rod is made, the hole is formed and the steel bar 6 is placed. During the placement of the steel bar 6, measures should be taken to prevent the waterproof coating 4 at the end of the steel bar 6 from being damaged, thereby affecting the waterproof effect. Grouting is performed into the grouting hole 8 through the grouting pipe 5. During the grouting process, the grouting pressure should be strictly controlled to ensure that the slurry is filled. The grouting saturation plays a great role in the pull-out resistance and waterproofing of the floating anchor rod, so it should be strictly controlled;

[0044] Step 4: After the grouting is completed, a waterproof sleeve 3 is added at the junction of the anti-floating anchor rod and the cushion layer 9. The length of the waterproof sleeve 3 is greater than the thickness of the cushion layer 9. At the same time, the bottom of the waterproof sleeve 3 is lower than the bottom of the cushion layer 9, which is convenient for fixing the waterproof sleeve 3. The top of the waterproof sleeve 3 shall not be higher than the top of the cushion layer 9, which is convenient for the paving of the waterproof membrane 2 in the later stage.

[0045] Step 5: After the waterproof sleeve 3 is fixed, the cushion layer 9 is constructed. During the construction of the cushion layer 9, the concrete of the cushion layer 9 shall not enter the interior of the waterproof sleeve 3;

[0046] Step 6: After the cushion layer 9 is constructed, the waterproof material is filled into the waterproof sleeve 3. The filling height of the waterproof material is flush with the top of the cushion layer 9, and the top of the waterproof sleeve 3 is completely covered. At the same time, the waterproof sleeve 3 and the surrounding gaps are all filled with liquid waterproof material. The liquid waterproof material can effectively solve the problem of groundwater flowing upward under the action of water pressure, and better solve the problem of water leakage;

[0047] Step 7: After the waterproof material is filled, the waterproof membrane 2 is constructed. Before the waterproof membrane 2 is constructed, the cushion layer 9 is cleaned, including removing dust, garbage, stagnant water and other debris, so as to ensure the waterproof quality. In order to enhance the waterproof effect, an additional layer of waterproof membrane 2 is added at the junction of the anchor rod and the cushion layer 9, with a range of not less than 250mm. After the waterproof membrane 2 is constructed, a waterproof protective layer 10 is poured. The waterproof protective layer 10 is added within 250mm of the junction of the anti-floating anchor rod and the cushion layer 9;

[0048] Step 8: After the strength of the waterproof protective layer 10 meets the conditions for tying the steel bars 6, the water stop ring 1 is constructed. The position of the water stop ring 1 is set at a position not less than 10 cm from the bottom of the raft. At the same time, the water stop ring 1 is connected to the steel bars 6 at the anchor rod by welding, and the welding of the water stop ring 1 and the steel bars 6 at the anchor rod is ensured to be tight;

[0049] Step nine: When tying the steel bars 6 at the raft slab, simultaneously connect the steel bars 6 at the anchor rods with the steel bars 6 at the raft slab.

[0050] The technical effect of the above content is: waterproof coating 4 is applied on the steel bars within a range of not less than 50cm at the end of the anti-floating anchor rod and the upper and lower areas of the cushion layer 9. The waterproof coating 4 can effectively prevent groundwater from seeping upward through the steel bars 6. A water-stop sleeve 3 is added at the junction of the anti-floating anchor rod and the cushion layer 9, and liquid waterproof material is filled into the water-stop sleeve 3 to increase the waterproof range, thereby effectively solving the problem of groundwater being affected by water pressure or the impact of factors such as vibration on node waterproofing during subsequent use. An additional waterproof layer is set around the anchor rod, and the waterproof effect can be further enhanced by the additional waterproof layer. The above design adopts the combination of multiple waterproof barriers, which can effectively enhance the waterproof quality of the anti-floating anchor rod, thereby effectively solving the leakage problem caused by the small waterproof range in the traditional waterproof process or the influence of other factors such as vibration during subsequent use.

[0051] The waterproof coating 4 is used to prevent groundwater from seeping upward through the steel bars 6 , and the top of the waterproof coating 4 needs to exceed the top of the water stop ring 1 .

[0052] In step 2, applying waterproof coating 4 on the steel bar 6 specifically includes the following steps:

[0053] Before applying the waterproof coating 4, the steel bars 6 are pretreated, including degreasing, rust removal, grinding and cleaning;

[0054] During the application of the waterproof coating 4, ensure that the waterproof coating 4 is applied within a moderate application temperature range, which is 15°C-25°C;

[0055] When the waterproof coating 4 is applied to the surface of the steel bar 6, a multi-layer coating method is adopted.

[0056] The technical effect of the above content is: applying the waterproof coating 4 can prevent groundwater from seeping upward through the steel bars 6, and the top of the waterproof coating 4 needs to exceed the top of the water stop ring 1 in order to better protect the building from water erosion. During the construction process, the steel bars 6 need to be pretreated first to ensure that the waterproof coating 4 can effectively adhere to the surface of the steel bars 6. In addition, the coating work needs to be carried out within an appropriate construction temperature range, which is 15°C to 25°C. Too low or too high temperatures will affect the rheological properties of the waterproof coating 4 and reduce the coating effect. Finally, a multi-layer coating method will be used to improve the waterproof effectiveness of the waterproof coating 4.

[0057] Before applying the waterproof coating 4, the steel bars 6 are pre-treated, specifically:

[0058] Degreasing: Before applying the waterproof coating 4, the surface of the steel bar 6 is thoroughly cleaned, including using a detergent and clean water to remove grease or dirt on the surface of the steel bar 6;

[0059] Rust removal and polishing: After degreasing, use sandpaper or wire brush tools to remove rust on the surface of steel bar 6;

[0060] Cleaning: After degreasing and rust removal, rinse the steel bar 6 again with cleaning.

[0061] The technical effect of the above content is: before applying the waterproof coating 4, the surface of the steel bar 6 needs to be thoroughly cleaned to remove grease or dirt on the surface. Detergents and clean water or other degreasing products can be used until there is no oil stain on the surface of the steel bar 6 to ensure that the surface of the steel bar 6 is clean and dust-free. After degreasing, in order to enhance the adhesion between the waterproof coating 4 and the steel bar 6, the surface of the steel bar 6 needs to be rust-removed and polished. Rust removal can be done by physical methods such as sandpaper or wire brush to clean the rust on the surface. Through rust removal and polishing, the waterproof coating 4 is more closely combined with the surface of the steel bar 6, thereby improving the waterproof effect. After completing degreasing and rust removal and polishing, the surface of the steel bar 6 needs to be cleaned with water again to ensure that the surface of the steel bar 6 is dry and free of debris, so as to ensure that the waterproof coating 4 can be evenly covered on all surfaces.

[0062] When applying the waterproof coating 4 on the surface of the steel bar 6, a multi-layer coating method is adopted, which specifically includes the following steps:

[0063] Apply a layer of bottom waterproof coating 4 on the surface of the steel bar 6;

[0064] After the bottom waterproof coating 4 is dry, lay a layer of anti-cracking mesh cloth;

[0065] Then apply a second layer of waterproof coating 4 on the anti-cracking mesh cloth.

[0066] The technical effect of the above content is: a layer of base waterproof coating 4 is applied on the surface of the steel bar 6, and this layer of coating will serve as a base layer to provide additional protection and moisture-proof function, which can resist water and moisture penetration, and a layer of anti-crack mesh cloth is laid. This layer of anti-crack mesh cloth will fill and strengthen the cracks in the concrete structure. In addition, the anti-crack mesh cloth can also improve the overall strength and rigidity of the structure, making it more resilient and stable, and then a second layer of waterproof coating 4 is applied on the anti-crack mesh cloth. This layer of coating will provide further protection for the steel bar 6, and can form a completely isolated protective layer with the base waterproof coating 4 and the anti-crack mesh cloth, effectively preventing water from penetrating into the concrete structure.

[0067] Working principle: Applying waterproof coating 4 on the end of the anti-floating anchor and the steel bars 6 within 50 cm above and below the cushion layer 9 can prevent groundwater from seeping upward through the steel bars 6 and enhance the waterproof effect of the anti-floating anchor. Adding a water-stop sleeve 3 at the junction of the anti-floating anchor and the cushion layer 9 and filling the water-stop sleeve 3 with liquid waterproof material can avoid the influence of water pressure on groundwater or external factors such as vibration during subsequent use on the waterproofing of the node. Providing an additional waterproof layer around the anchor can effectively enhance the waterproof effect. The above design uses a combination of multiple waterproof barriers to more effectively enhance the waterproof quality of the anti-floating anchor, thereby more effectively solving the problems caused by factors such as too small a waterproof range or vibration during subsequent use in the traditional waterproof process, which helps to improve the safety of the building.

[0068] The present invention and its embodiments are described schematically above, and the description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. Therefore, if a person skilled in the art is inspired by it and designs a structural method and an embodiment similar to the technical solution without creativity without departing from the purpose of the invention, they shall all fall within the protection scope of the present invention.

Claims

1. A device for enhancing the waterproof quality of an anti-floating anchor rod, comprising a water stop ring (1), a grouting pipe (5), a steel bar (6) and a structural body (11), characterized in that: The grouting pipe (5) and the steel bar (6) are placed in the main structure (11). The main structure (11) is provided with a grouting hole (8). The grouting hole (8) is communicated with the grouting pipe (5). A cushion layer (9) is provided on the main structure (11). A waterproof coating (4) is applied to the ends of the steel bars (6) at the anchor rod and the steel bars (6) within a range of not less than 50 cm above and below the cushion layer (9). A water stop ring (1) is provided at the position of the steel bars (6) at the anchor rod. The water stop ring (1) and the steel bars (6) at the anchor rod are connected by welding. A water stop sleeve (3) is added at the junction of the anchor rod and the cushion layer (9). An additional layer of waterproof coiled material (2) is added at the junction of the cushion layer (9) and the anchor rod. A waterproof protective layer (10) is cast on the waterproof coiled material (2).

2. A device for enhancing the waterproof quality of an anti-floating anchor rod according to claim 1, characterized in that: A positioning steel bar (7) is welded onto the steel bar (6).

3. The device for enhancing the waterproof quality of an anti-floating anchor rod according to claim 1, characterized in that: The waterproof coating (4) is used to prevent groundwater from seeping upward through the steel bars (6), and the top of the waterproof coating (4) needs to exceed the top of the water stop ring (1).

4. The device for enhancing the waterproof quality of an anti-floating anchor rod according to claim 1, characterized in that: The length of the water-stopping sleeve (3) is greater than the thickness of the cushion layer (9), while the bottom of the water-stopping sleeve (3) is lower than the bottom of the cushion layer (9), and the top of the water-stopping sleeve (3) shall not be higher than the top of the cushion layer (9).

5. The device for enhancing the waterproof quality of an anti-floating anchor rod according to claim 1, characterized in that: The waterproof protective layer (10) is added within a range of 250 mm at the junction of the anti-floating anchor rod and the cushion layer (9).

6. A construction method for enhancing the waterproof quality of an anti-floating anchor rod, implemented using a device for enhancing the waterproof quality of an anti-floating anchor rod according to any one of claims 1 to 5, characterized in that: The following steps are involved: Step 1: According to the design requirements of the pre-established drawings, the corresponding length of the steel bars (6) is produced, and the positioning steel bars (7) are welded; Step 2: Apply waterproof coating (4) on the ends of the steel bars (6) at the anchor rod and on the steel bars (6) within a range of not less than 50 cm above and below the cushion layer (9); Step 3: After the anchor rod is manufactured, the hole is formed, the steel bar (6) is placed, and grouting is performed into the grouting hole (8) through the grouting pipe (5); Step 4: After the grouting is completed, a water stop sleeve (3) is added at the junction of the anti-floating anchor rod and the cushion layer (9); Step 5: After the water-stop sleeve (3) is fixed, the cushion layer (9) is constructed; Step 6: After the cushion layer (9) is constructed, the waterproof material is filled into the waterproof sleeve (3). The filling height of the waterproof material is flush with the top of the cushion layer (9), and the top of the waterproof sleeve (3) is completely covered. At the same time, the waterproof sleeve (3) and the surrounding gaps are all filled with liquid waterproof material; Step 7: After the waterproof material is filled, the waterproof coiled material (2) is constructed. Before the waterproof coiled material (2) is constructed, the cushion layer (9) is cleaned, including removing dust, garbage and accumulated water. At the same time, an additional layer of waterproof coiled material (2) is added at the junction of the anchor rod and the cushion layer (9). After the waterproof coiled material (2) is constructed, a waterproof protective layer (10) is poured; Step 8: After the strength of the waterproof protective layer (10) meets the conditions for tying the steel bars (6), the water stop ring (1) is constructed. The water stop ring (1) is set at a position not less than 10 cm from the bottom of the raft slab. At the same time, the water stop ring (1) is connected to the steel bars (6) at the anchor rod by welding. Step 9: When tying the steel bars (6) at the raft slab, the steel bars (6) at the anchor rods are connected to the steel bars (6) at the raft slab at the same time.

7. A construction method for enhancing the waterproof quality of an anti-floating anchor rod according to claim 6, characterized in that: In the step 2, applying the waterproof coating (4) on the steel bar (6) specifically comprises the following steps: Before applying the waterproof coating (4), the steel bar (6) is pre-treated, including degreasing, rust removal, grinding and cleaning; During the application of the waterproof coating (4), ensure that the waterproof coating (4) is applied within a suitable application temperature range, which is 15°C-25°C; When the waterproof coating (4) is applied to the surface of the steel bar (6), a multi-layer coating method is adopted.

8. A construction method for enhancing the waterproof quality of an anti-floating anchor rod according to claim 7, characterized in that: Before applying the waterproof coating (4), the steel bar (6) is pre-treated, specifically: Degreasing: Before applying the waterproof coating (4), the surface of the steel bar (6) is thoroughly cleaned, including using a detergent and clean water to remove grease or dirt on the surface of the steel bar (6); Rust removal and polishing: After degreasing, use sandpaper or a wire brush to remove rust on the surface of the steel bar (6); Cleaning: After degreasing and rust removal, rinse the steel bar (6) again with cleaning agent.

9. A construction method for enhancing the waterproof quality of an anti-floating anchor rod according to claim 7, characterized in that: When applying the waterproof coating (4) on the surface of the steel bar (6), a multi-layer coating method is adopted, which specifically includes the following steps: Applying a layer of bottom waterproof coating (4) on the surface of the steel bar (6); After the bottom waterproof coating (4) is dry, a layer of anti-cracking mesh cloth is laid; Then, a second layer of waterproof coating (4) is applied on the anti-cracking mesh cloth.

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