Passive power plant pool anti-floating structure
By distributing anti-buoyancy components around the outer perimeter of the pool and utilizing the bending resistance design of steel sections and grout, the high cost and construction complexity of existing anti-buoyancy methods for pools are solved. This achieves low-cost, flexible anti-buoyancy effects and reusable materials, improving construction efficiency and safety.
Patent Information
- Application Number
- CN202423198329.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-24
- Publication Date
- 2025-11-18
- Estimated Expiration
- 2034-12-24
AI Technical Summary
Existing anti-buoyancy methods for water tanks suffer from problems such as high cost, complex construction, non-reusable materials, and the need for early planning and difficulty in correcting design errors, which limit their widespread application and promotion.
A passive anti-buoyancy structure for the power plant pool is adopted. Anti-buoyancy components are evenly distributed around the outer perimeter of the pool. The anti-buoyancy components include steel sections and grouting bodies. The steel sections are buried in the soil at an upward angle, using bending force to counteract buoyancy, thus reducing material requirements and construction complexity.
It achieves low-cost and flexible anti-buoyancy effects, the materials are reusable, highly adaptable, and easy to construct, reducing project costs and resource waste, and improving construction efficiency and safety.
Smart Images
Figure CN223562209U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a passive power plant pool anti -floating structure belongs to pool anti -floating technical field. BACKGROUND
[0002] When building a pool in an underground or high water level area, the pool structure faces significant buoyancy pressure in the initial stage before it is put into operation and the interior is not yet filled with water. If this buoyancy pressure is not effectively controlled and managed, it may cause the pool structure to float up, even causing structural damage, thereby causing serious safety hazards. Therefore, anti-floating technology is a key technical means to ensure the stability of the pool structure during construction and operation.
[0003] Currently, to solve the problem of pool anti-floating, two traditional methods, counterweight method and anchor rod fixing method, are mainly used to achieve the anti-floating effect. The counterweight method adds extra weight to the pool structure to offset the buoyancy exerted by the water. The principle of this method is relatively simple and easy to implement, so it has been widely used in actual engineering. However, the counterweight method has the problem of high cost. In order to achieve sufficient anti-floating effect, a large amount of materials such as concrete, steel, etc. are usually needed, which not only increases the construction cost of the project, but also may adversely affect the construction period and transportation. In addition, the counterweight method has high requirements for the design and construction of the pool structure, and precise calculation and reasonable counterweight arrangement must be carried out to avoid instability of the structure due to uneven counterweight or improper design.
[0004] Another commonly used anti-floating method is the anchor rod fixing method. This method fixes the pool firmly to the ground by driving anchor rods between the pool structure and the foundation, thereby preventing it from floating up due to buoyancy. The anchor rod fixing method has strong tensile capacity and stability, which can ensure the safety of the pool structure to a large extent. However, the anchor rod fixing method also faces the problem of high cost. The construction of anchor rods requires professional equipment and technology, and the construction process is complex and time-consuming, especially in areas with complex geological conditions or high underground water level, the construction difficulty and cost are further increased. In addition, the long-term durability and maintenance of anchor rods are also important factors to consider. If the anchor rod material is not properly selected or the construction quality is not high, it may affect its anti-floating effect, and even cause structural safety problems.
[0005] In addition to the above cost and construction difficulty problems, the existing counterweight method and anchor rod fixing method also have other many deficiencies in practical application. First, these methods need detailed planning and design at the initial stage of pool construction, and cannot be supplemented or adjusted after the pool is built. This means that once the pool construction is completed, if additional anti-floating measures are needed, there will be greater technical and economic challenges. Second, once the counterweight and anchor rod materials are installed, they are usually not reusable, leading to waste of resources and increased environmental burden. In addition, these methods usually require construction in the foundation pit, which is complex and technically demanding, increasing the difficulty and risk of the project. Finally, if errors occur in the early design stage, it is difficult to effectively remedy them later, which may result in the failure of the anti-floating measures and threaten the safety of the entire pool structure.
[0006] In summary, although the existing pool anti-floating methods can effectively prevent the pool from floating to some extent, their high cost, complex construction, non-reusable materials, need for early planning, and difficulty in remedying design errors limit their widespread application and promotion. In view of this, there is an urgent need to develop a new type of pool anti-floating method that is lower in cost, simpler in construction, and more adaptable. This new method should be able to ensure anti-floating effect while reducing material and construction costs, improving construction efficiency, and having good flexibility, suitable for different types and sizes of pool structures. In addition, the new method should also consider the reusability and environmental friendliness of materials to ensure its sustainability and economy in practical application. Therefore, in view of the shortcomings of existing anti-floating technology, it is of great practical significance and broad application prospect to research and develop an innovative, economical and efficient pool anti-floating method that is easy to implement. SUMMARY
[0007] The technical problem to be solved by the utility model is to provide a passive power plant pool anti-floating structure to overcome the shortcomings of the prior art.
[0008] The technical scheme of the utility model is as follows: a passive power plant pool anti-floating structure, comprising a pool body and an anti-floating assembly.
[0009] The anti-floating assembly comprises a plurality of anti-floating assemblies, which are uniformly distributed on the outer side of the pool body, and one end of the anti-floating assembly is fixedly connected to the pool body, and the other end of the anti-floating assembly is inclined upward and buried in the soil layer around the pool.
[0010] Further, the anti-floating assembly comprises a profile steel and a grouting body, and the grouting body is wrapped around the profile steel.
[0011] The utility model has the advantages that, compared with the prior art,
[0012] 1) Compared with the traditional counterweight method and anchor rod fixing method, the structure converts the buoyancy into the bending resistance of the anti-floating assembly through the upward inclination design of the anti-floating assembly, reduces the dependence on a large amount of concrete, steel and other materials compared with the counterweight method, thereby significantly reducing the material cost; compared with the anchor rod method, the anchor rod is directly punched at the bottom of the pool, and the main stress of the anchor rod is anti-pulling, and the same mechanical properties can be achieved with less material, so the structure cost of the utility model is also lower.
[0013] 2) The utility model has good flexibility, and if anti-floating measures need to be added in the later stage of pool construction, the pool anti-floating can be realized by punching holes on the outside of the pool, pouring the profile steel and grouting, without considering at the initial stage of pool construction, and has good flexibility. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 It is a structural schematic view of the utility model. DETAILED DESCRIPTION
[0015] Example 1: Reference Figure 1 The passive power plant pool anti-floating structure of the utility model is specifically implemented and explained below in combination with the drawings, so that the technical scheme of the utility model can be better understood.
[0016] IMPLEMENTATION ENVIRONMENT
[0017] This embodiment is applicable to the anti-floating structure design of a newly-built passive power plant pool located in an underground or high-water-level area. The diameter of the pool body 1 is 50 meters, the height is 10 meters, the surrounding soil layer depth is 15 meters, the underground water level is high, and the buoyancy pressure is significant.
[0018] Anti-floating assembly design
[0019] The anti-floating assembly includes a profile steel 2 and a grouting body 3, and the specific design parameters are as follows:
[0020] 1, profile steel 2:
[0021] Profile steel type: Q345B profile steel H-shaped steel, cross-sectional size H400x200x200x10.
[0022] Length: The length of each profile steel is 12 meters, of which 2 meters is fixedly connected to the pool body 1, and the remaining 10 meters is upwardly inclined and buried in the soil layer.
[0023] Number: evenly arranged around the pool body, a total of 20 anti-floating assemblies are arranged.
[0024] 2, grouting body 3:
[0025] Grouting material: high-strength cement mortar is used, and the ratio is cement:sand:water=1:2:0.5.
[0026] Wrapping method: The grouting body 3 completely wraps around the profile steel 2, ensuring a tight connection between the profile steel and the soil layer, improving bending resistance.
[0027] Construction steps
[0028] 1. Foundation preparation:
[0029] Reserve enough construction space around the pool body 1, clean the construction area, and ensure the stability of the soil layer.
[0030] Mark the position of the anti-floating component according to the design drawing, ensuring that it is evenly distributed on the outer side of the pool body.
[0031] 2. Installation of profile steel 2:
[0032] Insert the prefabricated profile steel 2 vertically into the pre-excavated soil pit according to the design length, with 2 meters fixed to the pool body 1, ensuring firm connection.
[0033] The profile steel 2 is buried in the soil layer at an angle of 45 degrees, with a depth of 10 meters, to ensure sufficient bending stiffness.
[0034] 3. Construction of grouting body 3:
[0035] After the profile steel 2 is installed in place, grouting is carried out. Pump grouting method is adopted to pour the prepared high-strength cement mortar around the profile steel 2, ensuring that the grouting body 3 completely wraps the profile steel 2.
[0036] After grouting is completed, maintenance treatment is carried out to ensure that the grouting body 3 reaches the design strength.
[0037] 4. Quality control:
[0038] During construction, strictly follow the design specifications, and regularly test the installation quality of the profile steel 2 and the grouting body 3.
[0039] Use ultrasonic testing and pull-out test methods to ensure that the tensile and bending properties of the anti-floating component meet the design requirements.
[0040] Anti-floating effect analysis
[0041] In this embodiment, the anti-floating component converts the buoyancy into bending force through the bending design of the profile steel 2, which disperses around the pool body 1. By reasonably arranging 20 anti-floating components, the overall structure can effectively resist the buoyancy pressure of the pool during the initial water injection, preventing the pool structure from floating or being damaged.
[0042] The utility model discloses not detailed place, all are the known technology of the technical field of the prior art of the utility model. Finally, it is explained that the above embodiment is only used to explain the technical scheme of the utility model and is not limited, although the utility model has been explained in detail with reference to the preferred embodiment, those skilled in the art should understand that the technical scheme of the utility model can be modified or equivalent replaced, and the utility model technical scheme's purpose and scope are not departed from, and it should be covered in the utility model's claim scope.
Claims
1. A passive power plant pond anti-floating structure, characterized by, The water pool body (1) and the anti-floating assembly are included. The anti-floating assembly includes several anti-floating assemblies which are uniformly distributed on the outer side of the water pool body, one end of the anti-floating assembly is fixedly connected to the water pool body, and the other end of the anti-floating assembly is inclined upward and buried in the soil layer around the water pool.
2. The passive power plant water pool anti-floating structure according to claim 1, characterized in that, The anti-floating assembly includes a profile steel (2) and a grouting body (3), and the grouting body (3) is wrapped around the profile steel (2).