Anti-floating anchor rod easy to install
By using a design that combines rigid sleeves with fixed supports in the anti-buoyancy anchor rod, the problem of easy bending of corrugated pipes is solved, and stable installation and efficient construction of the anti-buoyancy anchor rod are achieved. It is suitable for high groundwater levels and complex geological conditions.
Patent Information
- Application Number
- CN202520428497.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-12
- Publication Date
- 2026-02-06
- Estimated Expiration
- 2035-03-12
AI Technical Summary
Traditional anti-buoyancy anchors are prone to bending of the corrugated pipe during installation, which affects the anchoring effect. Furthermore, existing reinforcement methods are not effective and increase costs and construction difficulty.
The design combines rigid sleeves with fixed supports, and the corrugated pipe is tightly connected to the anchor bolts. The step-by-step grouting technology is used to enhance the stability of the corrugated pipe, prevent bending, and form a stable anti-buoyancy anchor bolt structure.
It effectively prevents the corrugated pipe from bending during the lowering process, ensures that the anchor bolt reaches the predetermined position, improves the stability and construction quality of the anti-buoyancy anchor bolt structure, is suitable for complex geological conditions, and reduces construction difficulty.
Smart Images
Figure CN223880335U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to underground building construction technical field, concretely relates to an anti floating anchor rod easy to install. BACKGROUND
[0002] In the area where the underground water level is higher, the building foundation structure needs to take the anti floating measure. The anti floating anchor rod as an important structural support, its installation quality is directly related to the safety and stability of the project. However, in the installation process of the anti floating anchor rod, the corrugated pipe as one of the key components, often because its stiffness is insufficient, bending occurs in the process of descending into the anchor hole, leading to the anti floating anchor rod unable to be completely lowered to the predetermined position, affecting the anchoring effect. The traditional method tries to increase the wall thickness of the corrugated pipe or improve the material to enhance its stiffness, but often the effect is not good, and increases the cost and construction difficulty.
[0003] Therefore, it has practical significance to develop an anti floating anchor rod which has good structural stability and is convenient to operate. CONTENT OF THE UTILITY MODEL
[0004] The utility model provides an anti floating anchor rod easy to install and a corrugated pipe anti bending technology based on sleeve pipe auxiliary to enhance the anti bending ability of the corrugated pipe and improve the stability and anti floating performance and anti corrosion performance of the anti floating anchor rod structure.
[0005] In order to realize the above-mentioned purpose, the utility model provides an anti floating anchor rod easy to install, which connects the basement structure bottom plate and underground rock soil layer by the anchoring body composed of the anchor rod and grouting material; the lower side of the basement structure bottom plate is sequentially provided with a waterproof layer and a cushion layer;
[0006] The lower part of the anchor rod is sleeved on the inner side of the corrugated pipe, and the corrugated pipe forms a whole with the fixed support; the top end of the corrugated pipe abuts against the cushion layer;
[0007] The corrugated pipe is sleeved on the inner side of the rigid sleeve; the rigid sleeve is interference fitted in the anchor hole.
[0008] The installation process of the anti floating anchor rod is as follows: firstly, the anchor hole drilling of the anti floating anchor rod is completed, and the rigid sleeve is placed to prevent the hole wall from collapsing. Then, the corrugated pipe is sleeved on the outer side of the lower part of the anchor rod, and the anchor rod and the corrugated pipe are tightly combined to form a whole through the fixed support, so that the corrugated pipe will not bend in the process of descending. Next, the connected corrugated pipe and anchor rod are put into the rigid sleeve. The top of the anchor rod is fixedly connected with the basement structure bottom plate. After that, the cement slurry is injected into the gap between the corrugated pipe and the anchor rod, and after the cement slurry is preliminarily solidified, the rigid sleeve is pulled out. Then, the grouting operation is carried out on the gap between the corrugated pipe and the foundation, and after the grouting material is completely solidified, a stable anti floating anchor rod structure is formed.
[0009] The anti-floating anchor rod effectively prevents the bending of the corrugated pipe during the installation process of the anchor rod by arranging a rigid sleeve outside the corrugated pipe and using a specific structural design.
[0010] Further, the fixing support is arranged transversely between the inner wall of the corrugated pipe and the anchor rod and is uniformly distributed along the axial direction of the anchor hole.
[0011] Further, a grouting hole is arranged between the fixing support and the inner wall of the corrugated pipe.
[0012] Further, a grouting pipe is arranged in the corrugated pipe and passes through the grouting hole.
[0013] Further, an annular sliding block is arranged between the outer wall of the corrugated pipe and the rigid sleeve to reduce the frictional force of the corrugated pipe during the descending process in the rigid sleeve and ensure the position stability of the corrugated pipe in the sleeve.
[0014] Further, guide heads are arranged at both ends of the rigid sleeve to facilitate the insertion of the rigid sleeve into the anchor hole.
[0015] Further, the length of the rigid sleeve is equal to the depth of the anchor hole to ensure the stable descending depth of the corrugated pipe.
[0016] Compared with the prior art, the beneficial effects of the present application include but are not limited to:
[0017] (1) The rigid sleeve provides a stable support environment for the corrugated pipe, and the fixing support tightly connects the corrugated pipe and the anchor rod, further enhancing the stability of the corrugated pipe and effectively avoiding the bending phenomenon caused by external force during the descending process.
[0018] (2) The stable descending of the corrugated pipe ensures that the anchor rod can smoothly reach the bottom of the anchor hole, thereby improving the overall stability of the anti-floating anchor rod structure. The stable anti-floating anchor rod structure can better resist the groundwater buoyancy and provide more reliable anti-floating support for the building.
[0019] (3) The structure combined with the step grouting technology enables the grouting material to fully fill the gap between the corrugated pipe and the anchor rod and between the corrugated pipe and the foundation, further enhancing the stability and carrying capacity of the structure, while making the grouting process more controllable and reducing the construction difficulty.
[0020] (4) The present application is not only suitable for areas with high groundwater level, but also suitable for anti-floating anchor rod structure design and installation under various complex geological conditions. BRIEF DESCRIPTION OF DRAWINGS
[0021] The present application will become more apparent from the following detailed description of non-limiting embodiments with reference to the attached drawings. The same reference numbers in different drawings represent the same or similar elements. The drawings are not necessarily drawn to scale, emphasis instead being placed upon illustrating the principles of the present application.
[0022] Figure 1 is a sectional view of the overall structure of the anti-floating anchor rod of an embodiment of the present application;
[0023] Figure 2 is a sectional view of the overall structure of the anti-floating anchor rod of an embodiment of the present application; Figure 1 is a plan view of the position of the circle.
[0024] Legend of reference signs:
[0025] 1, basement structure bottom plate; 2, anchor rod; 3, waterproof layer; 4, cushion layer; 5, corrugated pipe; 51, annular sliding block; 6, grouting material; 7, anchor hole; 8, rigid sleeve; 9, fixed support; 10, grouting hole. DETAILED DESCRIPTION
[0026] The technical solutions of the present application will be described clearly and completely below with reference to the drawings. Obviously, the described embodiments are some embodiments of the present application, rather than all embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
[0027] In the description of the present application, it should be noted that the terms "upper", "lower", "horizontal", "vertical", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, unless otherwise explicitly specified and limited, the terms "mounting", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection; it can be direct connection, or indirect connection through an intermediate medium; it can be the communication between two elements inside. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0028] In order to make the purpose, technical solutions and advantages of the present application clearer, the embodiments of the present application will be described in further detail below with reference to the drawings.
[0029] EMBODIMENTS
[0030] Reference is made to Figure 1 and Figure 2The embodiment provides an anti-floating anchor rod which is easy to install and is connected with a basement structure bottom plate 1 and underground strata by an anchoring body formed by an anchor rod 2 and grouting material 6; and the bottom side of the basement structure bottom plate 1 is sequentially provided with a waterproof layer 3 and a cushion layer 4.
[0031] The lower part of the anchor rod 2 is sleeved in the inner side of the corrugated pipe 5 and is formed as a whole with the corrugated pipe 5 through a fixed support 9; and the top end of the corrugated pipe 5 abuts against the cushion layer 4.
[0032] The corrugated pipe 5 is sleeved in the inner side of the rigid sleeve 8; and the rigid sleeve 8 is interference-fitted in the anchor hole 7. The rigid sleeve 8 can be a sleeve made of various rigid materials, and is preferably a steel sleeve.
[0033] The corrugated pipe 5 is sleeved outside the anchor rod 2 and is used for isolating the anchor rod 2 and the grouting material 6; and the steel sleeve is sleeved outside the corrugated pipe 5 and is used for enhancing the bending resistance of the corrugated pipe.
[0034] The corrugated pipe 5 can be made of materials with certain flexibility and elasticity, such as polyethylene or polypropylene, so as to ensure that the corrugated pipe 5 can adapt to the slight deformation of the foundation.
[0035] The steel sleeve is made of high-strength steel material and has excellent rigidity and bending resistance. The inner diameter of the steel sleeve is slightly larger than the outer diameter of the corrugated pipe, and there is a gap between the steel sleeve and the corrugated pipe 5, so as to ensure that the corrugated pipe 5 can be smoothly sleeved therein.
[0036] The anchor rod 2 is usually made of steel bars or steel strands, such as hot-rolled ribbed steel bars, and is used for anchoring with the foundation. The anchor rod passes through the corrugated pipe and the steel sleeve and extends to the deep part of the foundation.
[0037] The grouting material 6, such as cement slurry or cement mortar, is used for filling the gap between the corrugated pipe and the steel sleeve and the gap between the anchor rod and the foundation, so as to enhance the anchoring effect of the anchor rod and the foundation.
[0038] The installation process of the anti-floating anchor rod is as follows: after the drilling of the anchor hole of the anti-floating anchor rod is completed, the first step is to place the rigid sleeve 8, which can prevent the hole wall from collapsing and provide a stable descending channel for the subsequent corrugated pipe 5 and anchor rod 2. The diameter of the rigid sleeve 8 should be slightly larger than the diameter of the anchor hole, so as to ensure that the rigid sleeve 8 can be smoothly placed and kept stable. Meanwhile, the length of the rigid sleeve 8 should be sufficient to cover the depth of the entire anchor hole.
[0039] The corrugated pipe 5 is sleeved outside the anchor rod 2, and the anchor rod 2 is tightly combined with the corrugated pipe 5 through the special fixing bracket 9 for fixing the reinforcing steel bars, which can ensure that the corrugated pipe will not be bent due to external force during the descending process. The fixing bracket 9 for fixing the reinforcing steel bars should be made of appropriate material and size to ensure that it can bear the expected tension and pressure. The fixing bracket 9 for fixing the reinforcing steel bars is arranged transversely on the contact surface between the corrugated pipe 5 and the anchor rod 2 to improve the stability and reliability of the combination. The fixing bracket 9 for fixing the reinforcing steel bars is uniformly distributed along the axial direction of the anchor hole.
[0040] The whole of the connected corrugated pipe 5 and anchor rod 2 is placed into the rigid sleeve 8. During this process, it should be ensured that the whole remains in a vertical state and is slowly descended to avoid collision and bending. During the descending process, appropriate tools such as cranes, ropes and the like should be used to assist the descending of the corrugated pipe 5 and anchor rod 2 and ensure that they can smoothly reach the bottom of the anchor hole 7. The top of the anchor rod 2 is fixedly connected with the bottom plate 1 of the basement structure. Then the space between the corrugated pipe 5 and the anchor rod is filled with the grouting material 6 through the grouting hole 10. The grouting material 6 should have good fluidity and curing performance to ensure that it can fully fill the space and form a solid structure. After the grouting material is preliminarily cured, the rigid sleeve 8 is pulled out. During the grouting process, the grouting pressure and the grouting amount should be closely monitored to ensure that the grouting material can be uniformly distributed and fully fill the space. At the same time, when the rigid sleeve 8 is pulled out, it should be ensured that the grouting material has been preliminarily cured to avoid its collapse or deformation. Then the space between the corrugated pipe 5 and the anchor hole 7 is grouted. The purpose of this step is to further reinforce the anti-floating anchor rod structure and improve its anti-floating performance. During the grouting process, it should be ensured that the grouting material can fully penetrate and fill the space, while avoiding the overflow or waste of the grouting material. After the grouting is completed, the grouting material should be waited to be completely cured to ensure the stability and reliability of the anti-floating anchor rod structure.
[0041] The operation process is as follows:
[0042] The operator uses the drilling equipment to drill a hole at the predetermined position, ensuring that the diameter and depth of the hole meet the design requirements. The hole is cleaned to remove the dirt and soil in the hole, ensuring that the grouting material 6 can fully fill the space. The rigid sleeve 8 is placed into the hole to ensure that the position of the rigid sleeve 8 is correct and stable. The rigid sleeve 8 should have a certain length to cover the depth of the anchor hole. The corrugated pipe 5 is sleeved outside the anchor rod, and the special fixing bracket 9 for fixing the reinforcing steel bars is used to tightly combine the corrugated pipe 5 with the anchor rod. The hoisting equipment is used to hoist the whole of the corrugated pipe 5 and anchor rod to above the hole. The whole of the corrugated pipe 5 and anchor rod is slowly descended to ensure that it can smoothly reach the bottom of the anchor hole. The grouting material 6 is injected into the space between the corrugated pipe 5 and the anchor rod 2, and after the grouting material 6 is preliminarily cured, the rigid sleeve is pulled out. The space between the corrugated pipe 5 and the foundation is grouted to ensure that the grouting material can fully fill the space and form a solid structure.
[0043] As a preferred embodiment, a grouting hole 10 is arranged between the fixed support 9 and the inner wall of the corrugated pipe 5. A grouting pipe (not shown in the figure) is arranged in the corrugated pipe 5 and passes through the grouting hole 10.
[0044] As a preferred embodiment, an annular sliding block 51 is arranged between the outer wall of the corrugated pipe 5 and the rigid sleeve 8, so as to reduce the friction of the corrugated pipe during descending in the rigid sleeve and ensure the position stability of the corrugated pipe in the sleeve.
[0045] As a preferred embodiment, guide heads are arranged at two ends of the rigid sleeve 8, so as to facilitate the insertion of the rigid sleeve into the anchor hole 7.
[0046] In conclusion, the utility model discloses an anti -floating anchor rod of easy installation, utilizes the anchoring body of anchor rod and grouting material and connects basement structure bottom plate and underground rock soil layer, the basement structure bottom plate downside is equipped with waterproof layer and pad layer in proper order, the anchor rod lower part is sleeved in the inside of corrugated pipe, and the whole is formed with fixed support and corrugated pipe, the top end of corrugated pipe abuts pad layer, and the inside of rigid sleeve is sleeved in the inside of corrugated pipe, and rigid sleeve is interference assembled in anchor hole. The anti -floating anchor rod passes through the rigid sleeve outside setting of corrugated pipe and utilizes specific structure design, effectively prevents the bending of corrugated pipe during the installation of anchor rod, makes the installation process of anti -floating anchor rod more smooth, and guarantees construction quality.
[0047] Those skilled in the art should understand that those skilled in the art can realize the variant examples in combination with the prior art and the above-mentioned embodiments, which are not described here. Such variant examples do not affect the essential content of the utility model, which are not described here.
[0048] The preferred embodiments of the utility model are described above. It should be understood that the utility model is not limited to the above specific embodiments, and the devices and structures not described in detail should be understood as being implemented in the ordinary way in the art; any person skilled in the art can make many possible changes and modifications to the technical solutions of the utility model or modify equivalent embodiments with equivalent changes without departing from the scope of the technical solutions of the utility model by using the disclosed methods and technical contents, which does not affect the essential content of the utility model. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the utility model without departing from the content of the technical solutions of the utility model, all still belong to the protection scope of the technical solutions of the utility model.
Claims
1. An anti-floating anchor rod easy to install, which connects a basement structure bottom plate (1) with underground rock-soil layer by using an anchoring body composed of an anchor rod (2) and grouting material (6); the underside of the basement structure bottom plate (1) is sequentially provided with a waterproof layer (3) and a cushion layer (4); characterized in that, the lower part of the anchor rod (2) is sleeved on the inner side of a corrugated pipe (5), and the corrugated pipe (5) forms an integral whole with the anchor rod (2) through a fixed support (9); the top end of the corrugated pipe (5) abuts against the cushion layer (4); the corrugated pipe (5) is sleeved on the inner side of a rigid sleeve (8); the rigid sleeve (8) is interference-fitted in an anchor hole (7).
2. An anti-floating anchor easy to install according to claim 1, characterized in that, the fixed support (9) is transversely arranged between the inner wall of the corrugated pipe (5) and the anchor rod (2), and is uniformly distributed along the axial direction of the anchor hole (7).
3. An anti-floating anchor rod easy to install according to claim 2, characterized in that, a grouting hole (10) is arranged between the fixed support (9) and the inner wall of the corrugated pipe (5).
4. An anti-floating anchor rod easy to install according to claim 3, characterized in that, a grouting pipe passing through the grouting hole (10) is arranged in the corrugated pipe (5).
5. An anti-floating anchor easy to install according to claim 1, characterized in that, an annular sliding block (51) is arranged between the outer wall of the corrugated pipe (5) and the rigid sleeve (8).
6. An anti-floating anchor easy to install according to claim 1, characterized in that, guide heads are arranged at both ends of the rigid sleeve (8) to facilitate insertion into the anchor hole (7).
7. An anti-floating anchor easy to install according to claim 1, characterized in that, the length of the rigid sleeve (8) is equal to the depth of the anchor hole (7).