Novel prefabricated bottom plate post-pouring belt advanced water stop structure

Abstract

The application discloses a novel prefabricated bottom plate post-poured belt advanced water stop structure, which comprises a prefabricated water stop plate, a cushion layer, a reinforced concrete base bottom plate and shrinkage compensation concrete. A hoisting cooperation part is arranged on the prefabricated water stop plate, and the cushion layer covers the edge of the prefabricated water stop plate. The reinforced concrete base bottom plate is located on the cushion layer, a post-poured belt is formed between the reinforced concrete base bottom plate and the prefabricated water stop plate, and the shrinkage compensation concrete is arranged in the post-poured belt. The novel prefabricated bottom plate post-poured belt advanced water stop structure provided by the application can realize prefabricated processing of the water stop plate in advance, avoids the problems of complex steel structure, difficult processing and binding during on-site pouring, and simplifies the construction, so that the construction period is greatly shortened. Meanwhile, the hoisting cooperation part on the prefabricated water stop plate greatly facilitates hoisting operation in the construction process and improves the construction efficiency.

Description

Technical Field

[0001] This application relates to the field of building construction technology, specifically to a novel precast foundation slab post-cast strip advanced water-stopping structure. Background Technology

[0002] In the specific application of building construction, in order to achieve the goals of stopping dewatering operations in advance for the foundation and backfilling the trench area in advance, engineers usually adopt a specific technical measure: when designing the post-pouring strip of the foundation slab, a special advanced water-stopping structure is set up. This structure aims to ensure the stability of the entire foundation, while effectively controlling the settlement of the main building structure during subsequent use, thereby ensuring the overall safety and service life of the building.

[0003] However, in actual construction, construction teams often employ a method of pouring the pre-waterstop base slab separately from the building's foundation slab. This method results in extremely complex reinforcement structures for the pre-waterstop base slab, making the processing and binding of the reinforcement difficult and requiring more manpower and time. These structural measures not only make the construction process extremely cumbersome but also prolong the construction time and consume more materials, thus increasing project costs and construction difficulty.

[0004] In view of the above, this application is hereby submitted. Utility Model Content

[0005] To solve one of the above-mentioned technical problems, this application provides a novel precast base slab post-cast strip advanced water-stopping structure.

[0006] This application provides the following technical solution: A novel precast foundation slab post-cast strip advanced water-stopping structure includes: A prefabricated waterstop plate, wherein a hoisting fitting is provided on the prefabricated waterstop plate; A cushion layer that covers the edge of the precast waterstop plate; A reinforced concrete foundation slab, which is located on a cushion layer, and a post-cast strip is formed between the reinforced concrete foundation slab and the precast waterstop slab; Shrinkage-compensating concrete, which is placed within the post-cast strip.

[0007] Optionally, the novel precast base slab post-cast strip advanced water-stop structure also includes several of the aforementioned precast water-stop plates; The precast waterstops are laid flat in sequence, and two adjacent precast waterstops are spliced ​​together. The precast waterstop is provided with an upper boss and a lower boss on both sides, and the upper boss of one of two adjacent precast waterstops is attached to the lower boss of the other.

[0008] Optionally, a strip of rubber pressure band is covered on the thickness end face of the lower boss; A strip of rubber sealant is used to seal the gap between two adjacent prefabricated waterstops.

[0009] Optionally, a positioning shaft is provided on the lower boss; A through hole is provided on the upper protrusion; In two adjacent precast waterstop plates, the positioning shaft of one is inserted into the through hole of the other.

[0010] Optionally, the inner diameter of the through hole is larger than the outer diameter of the positioning shaft; The space between the inner diameter of the through hole and the positioning shaft is filled with sealant.

[0011] Optionally, a groove is formed on the surface of the precast waterstop plate, and a reinforcing bar is provided on the precast waterstop plate. The hoisting mating part includes an upwardly convex curved section provided on the reinforcing bar, and the upwardly convex curved section is located in the groove.

[0012] Optionally, a first waterproof layer is provided between the reinforced concrete foundation slab and the pad layer, and on the surface of the precast waterstop exposed on the post-cast strip.

[0013] Optionally, the new precast base slab post-cast strip advanced water-stop structure also includes a second waterproof layer; The second waterproof layer is located on top of the first waterproof layer, on the upper surface of the precast waterstop, and extends to the bottom of the reinforced concrete foundation slab near the post-cast strip.

[0014] Optionally, a waterstop steel plate is provided between the shrinkage-compensating concrete and the reinforced concrete foundation slab, with the concave side of the waterstop steel plate facing the precast waterstop plate.

[0015] By adopting the above technical solution, this application has the following beneficial effects: The novel precast foundation slab post-cast strip advanced water-stop structure provided in this application, by setting precast water-stop plates, avoids the problems of complex steel reinforcement structure, difficult processing and binding during on-site pouring, thus simplifying construction, greatly shortening the construction cycle, significantly reducing material consumption, and lowering project costs and construction difficulty. At the same time, the design of the hoisting and assembly parts on the precast water-stop plates greatly facilitates hoisting operations during construction, improving construction efficiency. Attached Figure Description

[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application. The illustrative embodiments and descriptions of the application are used to explain the application, but do not constitute an undue limitation of the application. Obviously, the drawings described below are merely some embodiments, and those skilled in the art can obtain other drawings based on these drawings without creative effort.

[0017] Figure 1 This is a cross-sectional structural schematic diagram of the novel precast base slab post-cast strip advanced water-stopping structure provided in the embodiments of this application; Figure 2 This illustration shows a structural diagram of the precast waterstop splicing of the novel precast base slab post-cast strip advanced waterstop structure provided in the embodiments of this application; Figure 3 Show Figure 2 A magnified view of a portion of point A in the middle.

[0018] In the diagram: 1. Precast waterstop plate, 11. Lifting assembly, 111. Reinforcing bar, 112. Groove, 12. Upper boss, 13. Lower boss, 14. Strip rubber pressure band, 15. Positioning shaft, 16. Through hole, 2. Cushion layer, 3. Reinforced concrete foundation slab, 4. Shrinkage compensation concrete, 5. First waterproof layer, 6. Second waterproof layer, 7. Waterstop steel plate. Detailed Implementation To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this application, but are not intended to limit the scope of this application.

[0019] In the description of this application, it should be noted that the terms "upper", "lower", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0020] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0021] like Figures 1 to 3As shown in the figure, this application provides a novel precast foundation slab post-cast strip advanced water-stop structure, including a precast water-stop plate 1, a cushion layer 2, a reinforced concrete foundation slab 3, and shrinkage-compensating concrete 4. A hoisting fitting part 11 is provided on the precast water-stop plate 1, and the cushion layer 2 covers the edge of the precast water-stop plate 1. The reinforced concrete foundation slab 3 is located on the cushion layer 2, and the reinforced concrete foundation slab 3 and the precast water-stop plate 1 enclose a post-cast strip, with the shrinkage-compensating concrete 4 disposed within the post-cast strip.

[0022] The novel precast base slab post-cast strip advanced water-stop structure provided in this application, through the setting of precast water-stop plate 1, avoids the problems of complex structure, difficult processing and binding of steel reinforcement 111 during on-site casting, simplifies construction, greatly shortens the construction cycle, significantly reduces material consumption, and lowers project costs and construction difficulty. At the same time, the design of the hoisting fitting part 11 on the precast water-stop plate 1 greatly facilitates hoisting operations during construction and improves construction efficiency.

[0023] In one possible implementation, the novel precast base slab post-cast strip advanced water-stop structure includes several precast water-stop plates 1, which are laid flat in sequence, with adjacent precast water-stop plates 1 spliced ​​together. Each precast water-stop plate 1 has an upper boss 12 and a lower boss 13 on its two sides, with the upper boss 12 of one of two adjacent precast water-stop plates 1 abutting against the lower boss 13 of the other.

[0024] This splicing method ensures a tight and stable connection between the precast waterstop plates 1, effectively preventing leakage problems that may occur due to weak connections. At the splicing points, the fitting design of the upper boss 12 and lower boss 13 not only enhances the overall structural integrity but also provides a good foundation for subsequent sealing treatment. Furthermore, this splicing method is simple to operate, greatly improving construction speed and further shortening the project cycle. In actual construction, workers only need to lay and splice each precast waterstop plate 1 sequentially according to the design requirements to proceed with subsequent construction steps, eliminating the need for complex steel bar processing and tying work, thus reducing construction difficulty and labor intensity.

[0025] In this design, an upper stepped groove is formed between the lower boss 13 of the precast waterstop 1 and the body of the precast waterstop 1, and the upper boss 12 of the adjacent precast waterstop 1 is embedded in the stepped groove. A lower stepped groove is formed between the upper boss 12 of the precast waterstop 1 and the body of the precast waterstop 1, and the lower boss 13 of the adjacent precast waterstop 1 is embedded in the lower stepped groove.

[0026] In one possible implementation, a strip of rubber pressure band 14 covers the thick end face of the lower boss 13. The strip of rubber pressure band 14 between two adjacent prefabricated waterstop plates 1 seals the gap between the two prefabricated waterstop plates 1. The strip of rubber pressure band 14 has good elasticity and sealing performance, and can fit tightly against the gap between adjacent prefabricated waterstop plates 1, effectively preventing moisture and other liquids from penetrating into the interior of the structure through the gap. This sealing method is not only simple and reliable, but also can adapt to the slight deformation of the prefabricated waterstop plates 1 under different environmental conditions, maintaining a long-term sealing effect.

[0027] In one possible implementation, a positioning shaft 15 is provided on the lower boss 13, and a through hole 16 is provided on the upper boss 12. In two adjacent precast waterstop plates 1, the positioning shaft 15 of one is inserted into the through hole 16 of the other. This cooperative design of the positioning shaft 15 and the through hole 16 provides precise positioning for the splicing of adjacent precast waterstop plates 1, ensuring the accuracy and stability of the splicing. During construction, workers only need to align the positioning shaft 15 with the through hole 16 and insert it to quickly complete the positioning and splicing of the two precast waterstop plates 1, greatly improving construction efficiency and splicing quality. Furthermore, this positioning method effectively prevents problems such as displacement or misalignment of the precast waterstop plates 1 after splicing, further enhancing the overall integrity and stability of the structure.

[0028] In one possible implementation, the inner diameter of the through hole 16 is larger than the outer diameter of the positioning shaft 15, and a sealant is filled between the inner diameter of the through hole 16 and the positioning shaft 15. The design of the inner diameter of the through hole 16 being slightly larger than the outer diameter of the positioning shaft 15 provides room for manufacturing errors and facilitates smoother insertion of the positioning shaft 15 into the through hole 16. After the sealant is filled between the through hole 16 and the positioning shaft 15, it can tightly fill the gap between them, forming a reliable sealing barrier to prevent moisture and other substances from entering the structure through the gap between the positioning shaft 15 and the through hole 16. At the same time, the sealant also has a certain degree of elasticity and viscosity, which can adapt to the slight deformation of the positioning shaft 15 and the through hole 16 under different environmental conditions, maintaining long-term sealing performance. When selecting the sealant, commonly used sealant materials on the market can be used, taking into account factors such as compatibility with the material of the precast waterstop 1, aging resistance, and sealing performance, to ensure that the sealing effect meets the engineering requirements.

[0029] In one possible implementation, a groove 112 is formed on the surface of the precast waterstop 1, and a reinforcing bar 111 is provided on the precast waterstop 1. The lifting mating part 11 includes an upwardly convex curved section provided on the reinforcing bar 111, and the upwardly convex curved section is located within the groove 112. The groove 112 on the surface of the precast waterstop 1 not only provides space for the lifting mating part 11, but also protects the lifting part from damage during transportation by having its upwardly convex curved section located within the groove 112. During the lifting process, the lifting equipment can safely and stably lift the precast waterstop 1 to the designated position by connecting with the upwardly convex curved section, improving the efficiency and safety of the lifting operation.

[0030] In one possible implementation, a first waterproof layer 5 is provided between the reinforced concrete foundation slab 3 and the pad layer 2, and on the surface of the precast waterstop 1 exposed on the post-cast strip. The first waterproof layer 5 effectively prevents moisture from penetrating into the structure from between the reinforced concrete foundation slab 3 and the pad layer 2, and from the surface of the precast waterstop 1 exposed on the post-cast strip, thus providing waterproof protection. The first waterproof layer 5 can be made of various waterproof materials, such as waterproof membranes or waterproof coatings; the specific selection needs to be based on a comprehensive consideration of the actual needs of the project, environmental conditions, cost, and other factors.

[0031] In one possible implementation, the novel precast foundation slab post-cast strip advanced waterproofing structure further includes a second waterproofing layer 6. The second waterproofing layer 6 is located on top of the first waterproofing layer 5, on the upper surface of the precast waterstop slab 1, and extends to the bottom of the reinforced concrete foundation slab 3 near the post-cast strip. The second waterproofing layer 6 mainly covers the external corners of the precast waterstop slab 1. The installation of the second waterproofing layer 6 further enhances the waterproofing performance of the structure, forming a double waterproofing guarantee. It works in conjunction with the first waterproofing layer 5 to effectively address various possible leakage situations, improving the waterproofing reliability and durability of the entire structure. An adhesive layer can be provided between the second waterproofing layers 6 to ensure good bonding with the first waterproofing layer 5, working together to perform the waterproofing function.

[0032] In one possible implementation, a water-stop steel plate 7 is installed between the shrinkage-compensating concrete 4 and the reinforced concrete foundation slab 3, with the concave side of the water-stop steel plate 7 facing the precast water-stop plate 1. The installation of the water-stop steel plate 7 effectively prevents moisture from seeping into the structure through the gap between the shrinkage-compensating concrete 4 and the reinforced concrete foundation slab 3. Its concave side facing the precast water-stop plate 1 allows the water-stop steel plate 7 to have a certain water-conducting effect, better preventing water leakage, and also provides good stability, maintaining good contact with the surrounding concrete and fulfilling its water-stopping function even when the structure experiences minor displacement.

[0033] The preferred embodiments disclosed above are merely illustrative of this application. The preferred embodiments do not exhaustively describe modifications and variations. These embodiments are selected and specifically described in this specification to better explain the principles and practical applications of this application, thereby enabling those skilled in the art to better understand and utilize this application. This application is limited only by the claims and their full scope and equivalents.

Claims

1. A novel precast foundation slab post-cast strip advanced water-stopping structure, characterized in that, include: A prefabricated waterstop plate, wherein a hoisting fitting is provided on the prefabricated waterstop plate; A cushion layer that covers the edge of the precast waterstop plate; A reinforced concrete foundation slab, which is located on a cushion layer, and a post-cast strip is formed between the reinforced concrete foundation slab and the precast waterstop slab; Shrinkage-compensating concrete, which is placed within the post-cast strip.

2. The novel precast base slab post-cast strip advanced water-stopping structure according to claim 1, characterized in that, Includes several of the aforementioned prefabricated waterstops; The precast waterstops are laid flat in sequence, and two adjacent precast waterstops are spliced ​​together. The precast waterstop is provided with an upper boss and a lower boss on both sides, and the upper boss of one of two adjacent precast waterstops is attached to the lower boss of the other.

3. The novel precast base slab post-cast strip advanced water-stopping structure according to claim 2, characterized in that, The lower boss is covered with a strip of rubber pressure band on its thickness end face; A strip of rubber sealant is used to seal the gap between two adjacent prefabricated waterstops.

4. The novel precast base slab post-cast strip advanced water-stopping structure according to claim 3, characterized in that, A positioning shaft is provided on the lower boss; A through hole is provided on the upper protrusion; In two adjacent precast waterstop plates, the positioning shaft of one is inserted into the through hole of the other.

5. The novel precast base slab post-cast strip advanced water-stopping structure according to claim 4, characterized in that, The inner diameter of the through hole is larger than the outer diameter of the positioning shaft; The space between the inner diameter of the through hole and the positioning shaft is filled with sealant.

6. The novel precast base slab post-cast strip advanced water-stopping structure according to claim 1, characterized in that, The precast waterstop plate has a groove on its surface and a reinforcing bar is provided on the precast waterstop plate. The hoisting fitting part includes an upwardly curved section provided on the reinforcing bar, and the upwardly curved section is located in the groove.

7. The novel precast base slab post-cast strip advanced water-stopping structure according to claim 1, characterized in that, A first waterproof layer is provided between the reinforced concrete foundation slab and the pad layer, and on the surface of the precast waterstop exposed on the post-cast strip.

8. The novel precast base slab post-cast strip advanced water-stopping structure according to claim 7, characterized in that, It also includes a second waterproof layer; The second waterproof layer is located on top of the first waterproof layer, on the upper surface of the precast waterstop, and extends to the bottom of the reinforced concrete foundation slab near the post-cast strip.

9. The novel precast base slab post-cast strip advanced water-stopping structure according to any one of claims 1-8, characterized in that, A waterstop steel plate is installed between the shrinkage-compensating concrete and the reinforced concrete foundation slab, with the concave side of the waterstop steel plate facing the precast waterstop plate.

Images