Track leveling layer construction method
By adding support plates and side formwork in track construction, the gap problem between the rail bottom and the concrete leveling layer is solved, the bearing capacity of the track and the stability of the transportation vehicle are improved, and the construction quality is excellent and stable.
Patent Information
- Application Number
- CN202510009087.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-03
- Publication Date
- 2025-03-25
AI Technical Summary
In track construction, there are often gaps between the bottom of the rail and the concrete leveling layer to varying degrees, affecting the bearing capacity of the track and the stability of the transport vehicle.
By adding support plates during track construction, adjusting the elevation of anchor bolts, and installing side forms on both sides of the support plate to ensure the flatness and accuracy of concrete pouring.
It effectively solves the gap problem between the rail bottom and the concrete leveling layer, improves the bearing capacity of the track and the stability of the transport vehicle, and ensures excellent and stable construction quality.
Smart Images
Figure CN119686176A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of building construction, and in particular to a track leveling layer construction method. Background Art
[0002] There are many rail transport vehicles in industrial workshops. The structure is to lay rails on paired concrete strip foundations, and the transport vehicles run on the rails. Among the installation forms of rails, one is to lay a layer of high-grade fine stone concrete leveling layer on the strip foundation along the longitudinal direction of the rails, and then lay the rails (with composite rubber pads) on the leveling layer and install the rail clamp to fix it. Since the load on the rails is large, the bottom of the rails is required to be in close contact with the leveling layer without leaving any gaps, otherwise it will affect the bearing capacity of the rails and the stability of the transport vehicles. However, since fine stone concrete does not have self-leveling properties, it is very difficult to ensure that there is no gap between the leveling layer and the bottom of the rails, and the construction is very difficult. Summary of the invention
[0003] The present invention is made to solve the above technical problems, and its purpose is to provide a track leveling layer construction method, which can effectively solve the problem that there are gaps of varying degrees between the track bottom and the concrete leveling layer, affecting the bearing capacity of the track.
[0004] In order to achieve the above object, the present invention provides a track leveling layer construction method, comprising the following steps:
[0005] S1: Adjust the adjusting nuts of several anchor bolts to the same elevation;
[0006] S2: Pass the support plate through the upper end of the anchor bolt, and fix any one of the anchor bolts to the support plate;
[0007] S3: adjusting the height of the support plate to a set position, aligning the center line of the support plate with the center line of the track, and then fixing other anchor bolts to the support plate in sequence;
[0008] S4: installing side formwork on both sides of the support plate according to the elevation of the support plate;
[0009] S5: pouring concrete, removing the formwork after the concrete solidifies, and performing curing.
[0010] Preferably, the spacing between the anchor bolts is no more than 2m.
[0011] Preferably, in step S4, a support frame is installed on the outer side of the side formwork, and the side formwork is reinforced by the support frame.
[0012] Preferably, square timber is provided on the side formwork, and the square timber is used to increase the strength of the side formwork; wherein,
[0013] One end of the square wood is arranged on the side formwork, and the other end is arranged on the supporting frame.
[0014] Preferably, in step S4, an inclined pad is installed at the lower end of the side formwork to adjust the height of the side formwork.
[0015] Preferably, the height of the inclined pad is 10 mm to 20 mm.
[0016] Preferably, in step S5, after pouring the concrete and before removing the formwork after the concrete solidifies, the process further includes:
[0017] Scrape the concrete by means of a scraper;
[0018] The concrete after being scraped is smoothed by an iron trowel.
[0019] Preferably, the scraper bar is an aluminum alloy scraper bar, and the concrete is scraped flat with the support plate as a fulcrum.
[0020] Preferably, the length of the scraper bar is not less than 2m.
[0021] Preferably, the support plate is a steel plate.
[0022] According to the above description and practice, the track leveling construction method of the present invention has the following beneficial effects compared with the prior art:
[0023] 1. Adding support plate leveling fulcrums not only greatly improves the flatness accuracy of the leveling layer, but also ensures the excellence and stability of construction quality.
[0024] 2. The support plate provides elevation and size basis for the installation of the side formwork, thus ensuring the accuracy and efficiency of the entire construction process. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] Figure 1 The present invention is a flow chart of a track leveling layer construction method according to an embodiment of the present invention.
[0026] Figure 2 It is a structural schematic diagram of the support plate installation involved in one embodiment of the present invention.
[0027] Figure 3 It is a structural schematic diagram of a support frame involved in an embodiment of the present invention installed on a side formwork.
[0028] Figure 4 It is a schematic structural diagram of a support plate involved in an embodiment of the present invention.
[0029] The reference numerals in the figure are:
[0030] 1. Anchor bolts; 2. Support plate; 21. Bolt holes; 3. Support frame; 4. Square wood; 5. Inclined pads; 6. Steel nails; 7. Side formwork. DETAILED DESCRIPTION
[0031] The exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that the disclosure will be more comprehensive and complete and fully convey the concepts of the exemplary embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
[0032] In addition, the accompanying drawings are only schematic illustrations of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the figures represent the same or similar parts, and thus their repeated descriptions will be omitted. It should be noted that in the present disclosure, the terms "including", "configured with", and "set in" are used to express the meaning of open-ended inclusion, and mean that in addition to the listed elements / components / etc., there may be other elements / components / etc.; the terms "first", "second", etc. are only used as marks, and are not restrictions on the number or order of their objects; the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.
[0033] Unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0034] In this embodiment, a track leveling layer construction method is disclosed. Figure 1 The process of the track leveling layer construction method is shown. Figure 2 The structure of supporting plate installation in the track leveling layer construction method is shown; Figure 3 The structure of installing the support frame on the side formwork in the track leveling layer construction method is shown; Figure 4 The structure of the support plate is shown.
[0035] Please refer to Figures 1 to 4 The track leveling layer construction method of the present invention comprises the following steps:
[0036] S1: Adjust the adjusting nuts of several anchor bolts to the same elevation;
[0037] S2: Pass the support plate through the upper end of the anchor bolt, and fix any one of the anchor bolts to the support plate;
[0038] S3: adjusting the height of the support plate to a set position, aligning the center line of the support plate with the center line of the track, and then fixing other anchor bolts to the support plate in sequence;
[0039] S4: installing side formwork on both sides of the support plate according to the elevation of the support plate;
[0040] S5: pouring concrete, removing the formwork after the concrete solidifies, and performing curing.
[0041] In step S3, a thin steel wire is selected to hang out the center line of the track above the support plate. The thin steel wire not only has high visibility and easy operability, but also has good flexibility and small deformation rate, which can ensure that it will not be easily damaged during a long construction process, and can be made of local materials, increasing the practicality of the construction operation.
[0042] In step S5, after the concrete is poured, use a scraper to flatten the concrete, and use an iron trowel to smooth the concrete. Control the force during the smoothing process to avoid defects such as scratches or dents due to improper operation. Before removing the formwork, the concrete needs to be fully inspected and accepted to ensure the strength and surface quality of the concrete. During the removal process, the formwork can be removed smoothly and completely by using special demolding tools and methods, while avoiding damage to the concrete surface. After removing the formwork, maintenance work is carried out, including water spraying, moisturizing, covering and protection, etc., to ensure that its strength and durability can meet the engineering requirements.
[0043] Furthermore, in a specific embodiment, the spacing between the anchor bolts 1 fixing the support plate is no more than 2 m. The distance between the anchor bolts 1 is controlled to ensure the supporting force of the anchor bolts 1 and to ensure the flatness of the leveling layer when the scraper rod is used to scrape the concrete flat.
[0044] Furthermore, in step S4, the support frame 3 is installed on the outside of the side formwork 3, and the side formwork 3 is reinforced by the support frame 3. The support frame 3 can not only enhance the rigidity of the side formwork 3 and prevent the formwork from being deformed due to the lateral pressure during concrete pouring, but also ensure the stability of the formwork during the pouring process. The support frame 3 is usually made of materials such as steel pipes or steel sections, and its structural design must meet certain strength and rigidity requirements to ensure construction safety and quality.
[0045] Furthermore, in step S4, a square timber 4 is arranged on the side formwork 3, and the square timber 4 is used to increase the strength of the side formwork 3; wherein one end of the square timber 4 is arranged on the side formwork 3, and the other end is arranged on the support frame 3, which greatly improves the overall stability of the formwork system. By fixing the square timber 4 between the side formwork 3 and the support frame 3, the side formwork 3, the square timber 4 and the support frame 3 can form a stable support system, further improving the bearing capacity and anti-deformation capacity of the side formwork 3, and preventing the concrete from flowing or shifting during the pouring process. The square timber 4 improves the bearing capacity of the side formwork 3, enabling it to withstand the pouring of concrete with a greater weight, ensuring the precise forming of the concrete structure. At the same time, the square timber 4 at the bottom is fixed to the fixing surface by a steel nail 6, which further fixes the square timber 4, further consolidates the stability of the support system, and ensures the safety of the formwork during the pouring process.
[0046] Further, in step S4, the inclined pad 5 is installed at the lower end of the side formwork 3 to adjust the height of the side formwork 3. By reasonably setting the inclined pad 5, it can be ensured that the elevation before pouring meets the design requirements, avoiding construction quality problems caused by inaccurate formwork height, and the inclined pad 5 can better adjust the height of the side formwork 3.
[0047] Furthermore, the height of the inclined pad 5 is 10 mm to 20 mm. Within this height range, the height of the formwork can be effectively adjusted and the stability and safety of the formwork during the pouring process can be ensured. The height of the side formwork 3 can be adjusted according to the specific construction environment and conditions through the pad 5 to ensure the construction quality and progress.
[0048] Furthermore, in step S5, after pouring the concrete and before removing the formwork after the concrete solidifies, it also includes: scraping the concrete with a scraper; calendering the scraped concrete with an iron trowel. The scraping action of the scraper can eliminate the unevenness and bubbles on the concrete surface, which can improve the quality and aesthetics of the concrete. The scraper is usually made of aluminum alloy material, which has the advantages of light weight, high strength, and corrosion resistance. At the same time, the length of the scraper is not less than 2m to ensure the consistency and continuity of the scraping effect. After the concrete is smoothed with the scraper, an iron trowel will be used to calender and further trim the concrete. The scraper and the iron trowel cooperate to ensure the quality of concrete pouring.
[0049] Furthermore, the support plate 2 is a steel plate, which has the advantages of high strength, high rigidity, good durability, etc., and can withstand large loads and deformations. The steel plate also has good processing performance and weldability, which is convenient for cutting, bending and welding according to construction requirements. Therefore, in the track leveling construction, steel plate has significant advantages and applicability as a material. In this embodiment, the support plate 2 generally uses a 6-inch thick steel plate, the length of the support plate 2 is generally the width of the track leveling layer, and the width of the support plate 2 is generally 100mm. The length and width of the support plate 2 are selected according to actual conditions to ensure that the actual needs of the track leveling layer are met.
[0050] To sum up, in traditional technology, the template leveling layer is usually relied on. However, during the construction of the leveling layer, it is difficult to effectively control the flatness of the leveling layer. In the later stage, large or small gaps often appear between the rail bottom and the concrete leveling layer. These gaps not only seriously weaken the bearing capacity of the track, but also pose a potential threat to the driving stability of the transport vehicle. The present invention adopts the method of adding a support plate 2, which greatly improves the flatness accuracy of the leveling layer and provides a strong guarantee for the safety and stability of rail transit.
[0051] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.
Claims
1. A track leveling layer construction method, characterized in that: The steps include: S1: Adjust the adjusting nuts of several anchor bolts to the same elevation; S2: Pass the support plate through the upper end of the anchor bolt, and fix any one of the anchor bolts to the support plate; S3: adjusting the height of the support plate to a set position, aligning the center line of the support plate with the center line of the track, and then fixing other anchor bolts to the support plate in sequence; S4: installing side formwork on both sides of the support plate according to the elevation of the support plate; S5: pouring concrete, removing the formwork after the concrete solidifies, and performing curing.
2. The track leveling layer construction method according to claim 1, characterized in that: The spacing between the anchor bolts is no greater than 2m.
3. The track leveling layer construction method according to claim 2, characterized in that: In step S4, a support frame is installed on the outer side of the side formwork, and the side formwork is reinforced by the support frame.
4. The track leveling layer construction method according to claim 3, characterized in that: In step S4, square timber is arranged on the side formwork, and the square timber is used to increase the strength of the side formwork; wherein, One end of the square wood is arranged on the side formwork, and the other end is arranged on the supporting frame.
5. The track leveling layer construction method according to claim 2, characterized in that: In step S4, an inclined pad is installed at the lower end of the side formwork to adjust the height of the side formwork.
6. The track leveling layer construction method according to claim 5, characterized in that: The height of the inclined pad is 10 mm to 20 mm.
7. The track leveling layer construction method according to claim 2, characterized in that: In step S5, after pouring the concrete and before removing the formwork after the concrete solidifies, the following steps are also included: Scrape the concrete by means of a scraper; The concrete after being scraped is smoothed by an iron trowel.
8. The track leveling layer construction method according to claim 7, characterized in that: The scraper bar is an aluminum alloy scraper bar, and the support plate is used as a fulcrum to scrape the concrete flat.
9. The track leveling layer construction method according to claim 7, characterized in that: The length of the scraper bar is not less than 2m.
10. The track leveling layer construction method according to claim 1, characterized in that: The support plate is a steel plate.