A seamless semi-precast track with a joint sealing structure
Patent Information
- Application Number
- CN202522241678.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-23
- Publication Date
- 2026-10-30
- Estimated Expiration
- 2035-10-23
AI Technical Summary
在半预制型跑道铺设时,由于渗水弹性层之间拼接固定时的胶水涂覆量较多,导致固化后的跑道拼接位置出现凸起,导致长时间使用后出现间隙
(一)、该带接缝密封结构的无缝半预制型跑道,通过渗水弹性层的条形卡槽与卡条,在铺设时进行拼接,同时在拼接的过程中,涂覆在条形卡槽处的密封固定胶,可在拼接挤压的过程中,进入卡条底部的密封胶槽,填充密封胶槽,并在固化后,加大与渗水弹性层的接触面积,提高固定效果,同时避免在密封固定胶涂覆量较多时,为多余的胶提供空间,避免拼接固化后,胶水顶起渗水弹性层的拼接位置,导致跑道出现间隙。
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Figure CN224918239U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of plastic running track technology, specifically a seamless semi-prefabricated running track with a joint sealing structure. Background Technology
[0002] Semi-prefabricated running tracks are a composite material that combines a factory-prefabricated roll base layer with a cast-in-place surface layer. Its core feature is the combination of "prefabrication + cast-in-place," which takes into account the stability of prefabricated running tracks and the seamless advantages of cast-in-place technology. Seamless semi-prefabricated running tracks with joint sealing structures are a type of sports field surface material that combines the advantages of prefabricated roll materials and cast-in-place technology. They are widely used in stadiums, school playgrounds, and other places. Semi-prefabricated running tracks consist of two main parts: a factory-prefabricated base roll material and a cast-in-place surface layer constructed on-site. During the installation of semi-prefabricated running tracks, the amount of adhesive applied during the splicing and fixing of the water-permeable elastic layers is too large, resulting in bulges at the splicing positions of the track after curing, which leads to gaps after long-term use. Utility Model Content
[0003] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a seamless semi-prefabricated runway with a joint sealing structure, comprising: The base course is poured, which is formed by pouring cement material to form the runway base course; The prefabricated layer consists of a sprayed surface layer, a water-permeable elastic layer, and a fixing adhesive layer; The prefabricated layer features a strip-shaped groove at one end and a retaining strip at the other end, both of which are adapted to the groove. The retaining strip has uniformly spaced sealant grooves at its bottom. During installation, the strip and retaining strip are joined together. During this joining process, sealant applied to the groove enters the sealant groove at the bottom of the retaining strip, filling it and increasing the contact area with the prefabricated layer after curing. This improves the fixing effect and prevents excess sealant from creating space and causing gaps in the track after curing. Furthermore, the prefabricated layer contains permeable pores.
[0004] Preferably, the fixing adhesive layer is located between the cast-in-place base layer and the water-permeable elastic layer. The fixing adhesive layer is used to connect and fix the water-permeable elastic layer and the cast-in-place base layer. The bottom of the water-permeable elastic layer is uniformly provided with inclined protrusions. Through the inclined protrusions at the bottom of the water-permeable elastic layer, when the water-permeable elastic layer is laid after the fixing adhesive layer is applied, the uncured adhesive layer enters the space between the inclined protrusions. After curing, it forms grooves corresponding to the inclined protrusions. When the track is in use, it restricts the movement of the water-permeable elastic layer and avoids wrinkles after the track has been used for a long time. The water-permeable elastic layer contacts the top layer of the fixing adhesive layer through the bottom surface and the inclined protrusions. When splicing the water-permeable elastic layers, sealant is applied in the groove, and then the strip of another water-permeable elastic layer is inserted into the groove coated with sealant.
[0005] Preferably, the spray coating is applied to the top of the water-permeable elastic layer. After the water-permeable elastic layer is laid and spliced, the spray coating covers the water-permeable elastic layer and forms a spray coating after curing. After curing, the spray coating is fixed to the top surface of the water-permeable elastic layer, and the top of the cured spray coating has a rough surface with granular protrusions.
[0006] This invention provides a seamless semi-prefabricated running track with a joint sealing structure. It has the following advantages: (i) The seamless semi-prefabricated running track with a joint sealing structure is spliced during installation through strip grooves and strips of the water-permeable elastic layer. At the same time, during the splicing process, the sealing and fixing adhesive applied to the strip grooves can enter the sealing adhesive groove at the bottom of the strip during the splicing and pressing process, fill the sealing adhesive groove, and increase the contact area with the water-permeable elastic layer after curing, thereby improving the fixing effect. At the same time, it avoids providing space for excess adhesive when the amount of sealing and fixing adhesive applied is too large, and avoids the adhesive from pushing up the splicing position of the water-permeable elastic layer after splicing and curing, which would cause gaps in the running track.
[0007] (ii) The seamless semi-prefabricated running track with joint sealing structure, through the inclined protrusions at the bottom of the water-permeable elastic layer, allows the uncured adhesive layer to enter the space between the inclined protrusions when the water-permeable elastic layer is laid after the fixing adhesive layer is applied. After curing, it forms grooves corresponding to the inclined protrusions, which restricts the movement of the water-permeable elastic layer when the running track is in use, and prevents wrinkles from appearing after the running track has been used for a long time. Attached Figure Description
[0008] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a side view of the overall structure of this utility model; Figure 3 This is a bottom view of the prefabricated layer structure of this utility model; Figure 4 This is a partial bottom view of the prefabricated layer of this utility model; Figure 5 This utility model Figure 4 A magnified schematic diagram of structure A.
[0009] In the diagram: 1. Precast layer; 2. Cast-in-place base layer; 11. Sprayed top layer; 12. Fixing adhesive layer; 13. Water-permeable elastic layer; 14. Diagonal convex strip; 15. Sealing adhesive groove. Detailed Implementation
[0010] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0011] Please see Figure 1-5 This utility model provides a technical solution: A seamless semi-prefabricated runway with a joint sealing structure includes: Base course 2 is poured, which is formed by pouring cement material to form the runway base course; Precast layer 1, which consists of a sprayed surface layer 11, a water-permeable elastic layer 13 and a fixing adhesive layer 12; In the prefabricated layer 1, one end of the water-permeable elastic layer 13 is provided with a strip groove, and the other end of the water-permeable elastic layer 13 is provided with a strip, which is adapted to the strip groove. The bottom of the strip of the water-permeable elastic layer 13 is uniformly provided with a sealing groove 15, and the interior of the water-permeable elastic layer 13 has water-permeable holes.
[0012] The fixing adhesive layer 12 is located between the cast-in-place base layer 2 and the water-permeable elastic layer 13. The fixing adhesive layer 12 is used to connect and fix the water-permeable elastic layer 13 and the cast-in-place base layer 2. The bottom of the water-permeable elastic layer 13 is uniformly provided with inclined protrusions 14. The water-permeable elastic layer 13 contacts the top layer of the fixing adhesive layer 12 through the bottom surface and the inclined protrusions 14. When splicing the water-permeable elastic layers 13, sealant is applied in the strip groove. When laying the spliced water-permeable elastic layers 13, the strip groove and the strip are matched. During the laying, the strip groove is used to secure the water-permeable elastic layer 13. The inner layer is coated with a sealing adhesive. Then, the permeable elastic layer 13 to be spliced is inserted into the strip groove coated with the sealing adhesive using a clip. The permeable elastic layer 13 is fixed together by the clip splicing and the sealing adhesive curing at the same time. After the permeable elastic layer 13 is laid and spliced, a surface material is applied to the surface. After the material cures, a sprayed surface layer 11 is formed, which forms the rough surface of the track. Then, the clip of another permeable elastic layer 13 is inserted into the strip groove coated with the sealing adhesive.
[0013] The sprayed top layer 11 is applied to the top of the water-permeable elastic layer 13. After the water-permeable elastic layer 13 is laid and spliced, the sprayed top layer 11 is applied to cover the water-permeable elastic layer 13. After curing, the sprayed top layer 11 is fixed to the top surface of the water-permeable elastic layer 13. After the base layer 2 is cured, the fixing adhesive layer 12 is applied to the surface of the base layer 2. Then the water-permeable elastic layer 13 is laid on the surface of the base layer 2. After the fixing adhesive layer 12 is cured, the water-permeable elastic layer 13 is fixedly connected to the base layer 2. At the same time, during the fixing, the inclined protrusions 14 at the bottom of the water-permeable elastic layer 13 contact the uncured fixing adhesive layer 12, so that the fixing adhesive layer 12 fills the space between the inclined protrusions 14. After the fixing adhesive layer 12 is cured, a groove is formed that matches the inclined protrusions 14. The top of the sprayed top layer 11 after curing is a rough surface with granular protrusions.
[0014] When laying the track, after leveling the ground, concrete is poured and allowed to cure and solidify to form the track base layer 2. After the base layer 2 is completed, the precast layer 1 is installed on top of it to form the track.
[0015] In the precast layer 1, after the cast-in-place base layer 2 has cured, a fixing adhesive layer 12 is applied to the surface of the cast-in-place base layer 2. Subsequently, a water-permeable elastic layer 13 is laid on the surface of the cast-in-place base layer 2. After the fixing adhesive layer 12 has cured, the water-permeable elastic layer 13 is fixedly connected to the cast-in-place base layer 2. At the same time, during fixing, the inclined protrusions 14 at the bottom of the water-permeable elastic layer 13 contact the uncured fixing adhesive layer 12, so that the fixing adhesive layer 12 fills the space between the inclined protrusions 14. After the fixing adhesive layer 12 has cured, it forms a groove that fits the inclined protrusions 14. Simultaneously, when laying the spliced permeable elastic layer 13, the strip groove and the strip are matched. During the laying, the sealing and fixing adhesive is applied to the strip groove. Then, the permeable elastic layer 13 to be spliced is inserted into the strip groove coated with sealing and fixing adhesive through the strip. By using the snap-fit splicing, the permeable elastic layer 13 is fixed between each other after the sealing and fixing adhesive has cured. After the permeable elastic layer 13 is laid and spliced, the surface layer material is coated on the surface. After the material cures, it forms the sprayed surface layer 11 and forms the rough surface of the track.
[0016] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0017] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A seamless semi-prefabricated running track with a joint sealing structure, characterized in that, include: The base course (2) is poured, and the base course (2) is formed by pouring cement material to form the runway base course; The prefabricated layer (1) is composed of a sprayed surface layer (11), a water-permeable elastic layer (13), and a fixing adhesive layer (12); Among them, one end of the water-permeable elastic layer (13) in the prefabricated layer (1) is provided with a strip groove, and the other end of the water-permeable elastic layer (13) is provided with a strip, and the strip is adapted to the strip groove. The bottom of the strip of the water-permeable elastic layer (13) is uniformly provided with a sealing glue groove (15), and the interior of the water-permeable elastic layer (13) has water-permeable holes.
2. A seamless semi-prefabricated running track with a joint sealing structure according to claim 1, characterized in that: The fixing adhesive layer (12) is located between the cast base (2) and the water-permeable elastic layer (13), and the fixing adhesive layer (12) is used to connect the water-permeable elastic layer (13) and the cast base (2).
3. A seamless semi-prefabricated running track with a joint sealing structure according to claim 2, characterized in that: The bottom of the water-permeable elastic layer (13) is uniformly provided with inclined protrusions (14), and the water-permeable elastic layer (13) contacts the top layer of the fixing adhesive layer (12) through the bottom surface and the inclined protrusions (14).
4. A seamless semi-prefabricated running track with a joint sealing structure according to claim 3, characterized in that: When splicing the water-permeable elastic layers (13), sealant is applied to the strip groove, and then the strip of another water-permeable elastic layer (13) is inserted into the strip groove coated with sealant.
5. A seamless semi-prefabricated running track with a joint sealing structure according to claim 4, characterized in that: The sprayed surface layer (11) is applied to the top of the water-permeable elastic layer (13). After the water-permeable elastic layer (13) is laid and spliced, the sprayed surface layer (11) is applied to cover the water-permeable elastic layer (13) and cured to form the sprayed surface layer (11).
6. A seamless semi-prefabricated running track with a joint sealing structure according to claim 5, characterized in that: After curing, the sprayed surface layer (11) is fixed to the top surface of the water-permeable elastic layer (13), and the top of the sprayed surface layer (11) after curing is a rough surface with granular protrusions.
