Fabricated ground of hydropower station project
By adopting a prefabricated ground design, the hydropower station project ground, which uses adjustable height supports and fiber-reinforced calcium silicate boards, solves the problems of complex and low construction efficiency of traditional support methods, and achieves rapid installation, electrostatic protection and improved safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- POWERCHINA BEIJING ENG CORP
- Filing Date
- 2025-04-21
- Publication Date
- 2026-05-15
AI Technical Summary
Traditional hydropower station projects have complex ground support methods for underground powerhouses and GIS switch buildings, auxiliary powerhouses, and communication equipment rooms. These methods are time-consuming, difficult to adapt to foundation settlement or structural deformation, and inefficient.
The prefabricated flooring consists of multiple assembly units. Each unit includes a finish layer, a balancing layer, floor beams, supports, wiring space, and a grounding grid. The supports are height-adjustable and, combined with fiber-reinforced calcium silicate boards and copper foil grounding grids, enable rapid installation and static electricity discharge.
It improves construction efficiency, adapts to foundation settlement and structural deformation, ensures flat installation, reduces noise, prevents static electricity accumulation, enhances safety and reusability, and meets green and environmental protection requirements.
Smart Images

Figure CN224244346U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of decoration and renovation technology, specifically relating to a prefabricated floor for hydropower station projects. Background Technology
[0002] Prefabricated buildings have been rapidly adopted across various regions due to their fast construction speed and low production costs. Prefabricated ground-level elevated systems, as a type of prefabricated building, have also gained widespread attention and application.
[0003] In current engineering practice, the control room of the underground powerhouse and the communication equipment room of the GIS switch building in hydropower station projects adopt the traditional elevated floor method, which mainly uses concrete bases and pre-embedded bolts to fix and adjust the feet. This method of support and adjustment feet requires first pouring concrete bases and pre-embedding bolts, and then subsequent secondary construction to install the support feet, which is a complex process that requires coordination among multiple parties. The height or position adjustment of the support feet is limited by the fixing points of the pre-embedded bolts, making it difficult to adapt to foundation settlement or structural deformation, resulting in long construction time and low efficiency. Utility Model Content
[0004] In view of the shortcomings of the existing technology, this utility model provides a prefabricated ground for hydropower station projects, which can effectively solve the above problems.
[0005] The technical solution adopted in this utility model is as follows:
[0006] This utility model provides a prefabricated ground for a hydropower station project. The prefabricated ground for the hydropower station project is composed of multiple prefabricated units. Each prefabricated unit includes a finishing layer (1), a balancing layer (2), a floor beam (3), a support (4), a wiring space (5), a pad layer (6), and a grounding grid (7).
[0007] The bottom surface of the finishing layer (1) is bonded with the balancing layer (2); the balancing layer (2) is rectangular, and each of the four sides of the balancing layer (2) is fitted with a floor beam (3), the four floor beams (3) form a rectangular structure, and a bracket (4) is set at each of the four corners of the rectangular structure; the top surface of the four brackets (4) is used to support the rectangular structure; the bottom surface of the four brackets (4) is provided with the grounding grid (7); the top surface of the grounding grid (7) is covered with the pad layer (6); the wiring space (5) is formed between the pad layer (6) and the balancing layer (2).
[0008] Preferably, the surface of the finishing layer (1) is covered with an antistatic film.
[0009] Preferably, the balancing layer (2) is one or more of fiber-reinforced calcium silicate board and cement pressure board.
[0010] Preferably, the bracket (4) is an adjustable height bracket.
[0011] Preferably, the bracket (4) includes a bracket base plate (401), a bracket top plate (402), a screw (403), a nut (404), and a hollow cylinder (405);
[0012] The screw (403) is fixedly installed below the top plate (402) of the bracket; the hollow cylinder (405) is fixedly installed above the bottom plate (401) of the bracket, and the nut (404) is fixedly installed on the top of the hollow cylinder (405). The screw (403) of the top plate (402) of the bracket is screwed through the nut (404) and extends into the interior of the hollow cylinder (405).
[0013] Preferably, the top plate (402) of the support and the floor beam (3) are connected by self-tapping screws.
[0014] Preferably, the bracket top plate (402) of each bracket (4) has four mounting holes and is connected to the floor beams (3) of the four adjacent assembly units.
[0015] Preferably, the padding layer (6) includes a sound-absorbing layer (601) and a noise-reducing layer (602) laid on the sound-absorbing layer (601).
[0016] Preferably, the sound-absorbing layer (601) is made of 50mm thick polyester fiber sound-absorbing cotton, and the noise-reducing layer (602) is made of 3mm thick damping sound-insulating felt.
[0017] Preferably, the grounding grid (7) is made of copper foil with a width of 80mm and a thickness of 2mm.
[0018] The prefabricated ground structure for a hydropower station project provided by this utility model has the following advantages:
[0019] In this invention, the balancing layer serves to balance the load-bearing capacity and provides a good construction interface for the finishing layer; the raised layer ensures sufficient load-bearing capacity while maintaining the overall lightweight nature of the system; the wiring space provided on the raised layer avoids the messiness and unsightly appearance of exposed wiring indoors. The subfloor reduces the cavity height, preventing excessive echoes when stepped on, while the grounding grid conducts static charge to the ground, preventing static electricity accumulation and discharge, thus ensuring personnel safety. The adjustable brackets level the raised layer, resulting in a smoother installation and improved installation quality. This invention represents a novel interior decoration design model and is an integral part of prefabricated building integration. It offers advantages such as saving labor and time, high efficiency, and environmental friendliness. Furthermore, it facilitates floor maintenance and replacement throughout the building's lifecycle and will gradually replace traditional floor decoration techniques, representing the future trend and development direction of the plumbing and electrical decoration industry. Attached Figure Description
[0020] Figure 1 A three-dimensional schematic diagram of the prefabricated ground for a hydropower station project provided by this utility model;
[0021] Figure 2 A plan view of the prefabricated ground for a hydropower station project provided by this utility model;
[0022] Figure 3 for Figure 2 A cross-sectional view along BB;
[0023] Figure 4 for Figure 2 A magnified view of A in the middle.
[0024] The components are: 1-finishing layer, 2-balancing layer, 3-floor beam, 4-bracket, 401-bracket base plate, 402-bracket top plate, 403-screw, 404-nut, 405-hollow cylinder, 5-wiring space, 6-pad layer, 601-sound absorption layer, 602-noise reduction layer, 7-grounding grid. Detailed Implementation
[0025] To make the technical problems solved, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.
[0026] See Figures 1 to 4 This utility model provides a prefabricated floor for a hydropower station project. The prefabricated floor for the hydropower station project is composed of multiple prefabricated units; each prefabricated unit includes a finishing layer 1, a balancing layer 2, a floor beam 3, a support 4, a wiring space 5, a pad layer 6, and a grounding grid 7.
[0027] The bottom surface of the finishing layer 1 is bonded with a balancing layer 2; the balancing layer 2 is rectangular, and a floor beam 3 is inserted into each of the four sides of the balancing layer 2, forming a rectangular structure with four floor beams 3 forming a rectangular structure. A bracket 4 is set at each of the four corners of the rectangular structure; the top surface of the four brackets 4 is used to support the rectangular structure; a grounding grid 7 is set on the bottom surface of the four brackets 4; a pad layer 6 is laid on the top surface of the grounding grid 7; a wiring space 5 is formed between the pad layer 6 and the balancing layer 2.
[0028] As a preferred method, the finishing layer 1 can be various decorative finishing layers such as stone, ceramic tile, and flooring. To prevent the generation of static electricity, an anti-static film is applied to the surface of the finishing layer 1. The balancing layer 2 is one or more of a 10mm thick fiber-reinforced calcium silicate board and cement pressure board. On the one hand, it plays a role in balancing the load-bearing capacity, effectively transferring the load above to the support 4, and on the other hand, it provides a good construction interface for the finishing layer 1.
[0029] A wiring space 5 is formed between the underlayment 6 and the balancing layer 2 for laying related lines, which can meet the requirements of the conduit and cross-conduit of ground electrical pipelines.
[0030] As a preferred embodiment, the padding layer 6 includes a sound-absorbing layer 601 and a noise-reducing layer 602 laid on top of the sound-absorbing layer 601. The sound-absorbing layer 601 is made of 50mm thick polyester fiber sound-absorbing cotton, and the noise-reducing layer 602 is made of 3mm thick damping sound-insulating felt, which can reduce the cavity height and prevent footstep echoes. The grounding grid 7 is made of 80mm wide and 2mm thick copper foil to prevent electrostatic interference and ensure the safety of electronic equipment and personnel.
[0031] In this utility model, the bracket 4 is an adjustable height bracket. Specifically, the bracket 4 includes a bracket base plate 401, a bracket top plate 402, a screw 403, a nut 404, and a hollow cylinder 405; the screw 403 is fixedly installed below the bracket top plate 402; the hollow cylinder 405 is fixedly installed above the bracket base plate 401, and the nut 404 is fixedly installed on the top of the hollow cylinder 405; the screw 403 of the bracket top plate 402 is screwed over the nut 404 and extends into the interior of the hollow cylinder 405.
[0032] In this invention, to enhance the structural stability of the prefabricated floor, the support top plate 402 and the floor beam 3 are connected by self-tapping screws.
[0033] In this invention, each bracket 4 has a bracket top plate 402 with four mounting holes, which are connected to the floor beams 3 of four adjacent assembly units. That is, up to four adjacent assembly units can share the same bracket 4 at their common contact angle position.
[0034] The prefabricated ground structure for a hydropower station project provided by this utility model has the following advantages:
[0035] 1. The balancing layer serves two purposes: firstly, it balances the load-bearing capacity, effectively transferring the load from above to the support structure; secondly, it provides a good construction interface for the finishing layer. The raised floor, including floor beams and supports, ensures both sufficient load-bearing capacity and the overall lightweight nature of the system. The height-adjustable supports of the raised floor serve to level the floor, resulting in a smoother installation and improved installation quality.
[0036] 2. A wiring space is set up in the elevated floor for laying relevant lines, which avoids the mess and unsightly exposed wiring indoors. It can meet the requirements for the conduit and cross conduit of ground electrical pipelines, avoiding similar problems such as chiseling structural floor slabs or cutting prefabricated flooring on site. This reduces safety hazards and the degradation of the floor structure performance, and lowers project costs, time costs and coordination costs.
[0037] 3. The underlayment can reduce the height of the cavity, which can cause loud echoes when stepped on, while also increasing the floor's support strength and improving safety. The grounding grid conducts static charges accumulated on equipment and people to the ground, preventing static electricity buildup and discharge, thus protecting circuit components and equipment and ensuring personnel safety.
[0038] 4. This utility model has a simple structure and is easy to use, solving the problems of low installation efficiency, instability, and near non-reusability of traditional flooring. All components are industrially produced and assembled on-site using a completely dry process, replacing traditional cement mortar leveling. Installation is convenient, eliminating the drawbacks of traditional decoration methods. It has high load-bearing capacity, is suitable for indoor use, and can be reused, saving energy and protecting the environment. This utility model improves the industrialization and standardization rate of prefabricated buildings, significantly increases on-site construction speed, and improves the accuracy of interior wiring in prefabricated buildings. It can be reused when the floor needs to be demolished, modified, repaired, or replaced.
[0039] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.
Claims
1. A prefabricated ground system for a hydropower station project, characterized in that, The prefabricated ground of the hydropower station project is composed of multiple prefabricated units; each prefabricated unit includes a finishing layer (1), a balancing layer (2), a floor beam (3), a support (4), a wiring space (5), a pad layer (6), and a grounding grid (7); The bottom surface of the finishing layer (1) is bonded with the balancing layer (2); the balancing layer (2) is rectangular, and each of the four sides of the balancing layer (2) is fitted with a floor beam (3), the four floor beams (3) form a rectangular structure, and a bracket (4) is set at each of the four corners of the rectangular structure; the top surface of the four brackets (4) is used to support the rectangular structure; the bottom surface of the four brackets (4) is provided with the grounding grid (7); the top surface of the grounding grid (7) is covered with the pad layer (6); the wiring space (5) is formed between the pad layer (6) and the balancing layer (2).
2. The prefabricated ground structure for a hydropower station project according to claim 1, characterized in that, The surface of the finishing layer (1) is covered with an antistatic film.
3. The prefabricated ground structure for a hydropower station project according to claim 1, characterized in that, The balancing layer (2) is one or more of fiber-reinforced calcium silicate board and cement pressure board.
4. The prefabricated ground structure for a hydropower station project according to claim 1, characterized in that, The bracket (4) is an adjustable height bracket.
5. The prefabricated ground structure for a hydropower station project according to claim 4, characterized in that, The bracket (4) includes a bracket base plate (401), a bracket top plate (402), a screw (403), a nut (404), and a hollow cylinder (405); The screw (403) is fixedly installed below the top plate (402) of the bracket; the hollow cylinder (405) is fixedly installed above the bottom plate (401) of the bracket, and the nut (404) is fixedly installed on the top of the hollow cylinder (405). The screw (403) of the top plate (402) of the bracket is screwed through the nut (404) and extends into the interior of the hollow cylinder (405).
6. The prefabricated ground structure for a hydropower station project according to claim 5, characterized in that, The top plate (402) of the support and the floor beam (3) are connected by self-tapping screws.
7. The prefabricated ground structure for a hydropower station project according to claim 5, characterized in that, Each of the brackets (4) has a bracket top plate (402) with four mounting holes and is connected to the floor beams (3) of the four adjacent assembly units.
8. The prefabricated ground structure for a hydropower station project according to claim 1, characterized in that, The padding layer (6) includes a sound-absorbing layer (601) and a noise-reducing layer (602) laid on the sound-absorbing layer (601).
9. The prefabricated ground structure for a hydropower station project according to claim 8, characterized in that, The sound-absorbing layer (601) is made of 50mm thick polyester fiber sound-absorbing cotton, and the noise reduction layer (602) is made of 3mm thick damping sound insulation felt.
10. The prefabricated ground structure for a hydropower station project according to claim 1, characterized in that, The grounding grid (7) is made of copper foil with a width of 80mm and a thickness of 2mm.