Installation method of ring groove cover in track and field field
2025-10-11 23:09:51
Before installing the ring ditch cover, it is essential to inspect the quality of the cover, particularly its strength class, to ensure it meets the design specifications. The cover should be free from cracks, chipped edges, honeycombing, pockmarks, and straight seams in the middle. This step is crucial to guaranteeing the durability and functionality of the final structure.
When proceeding with the installation, the top surface of the wall must be cleaned thoroughly and moistened to ensure proper adhesion. Two key aspects need attention: the elevation of the cover plate and the alignment of the drainage holes. Proper elevation is vital for smooth water drainage across the entire field, while aligned drainage holes contribute to the overall aesthetics and performance of the site.
After placing the first cover plate, another one should be installed every 10 meters as a reference or direction control board. Using the central drainage hole of these two plates, a line can be stretched to serve as a midline guide. If misalignment occurs, it must not be adjusted but rather corrected by maintaining the centerline without displacement. This process involves a continuous cycle of positioning, adjusting, and aligning the cover plates, ensuring that any deviation from the planned layout is minimized during installation.
The installation of the ring ditch primarily focuses on controlling both the elevation and the centerline, which are critical for the site’s usability and visual appeal. Additionally, the installation must be stable, with tight joints and well-packed mortar. It is also important to clean the bottom of the trench before laying the cover plates to ensure a solid foundation. The following table outlines the quality requirements for the installation of prefabricated reinforced concrete covers:
| Project | Allowable Deviation (mm) | Test Frequency | Testing Method |
|--------|--------------------------|----------------|----------------|
| | | Range | Points | |
| Centerline offset | ≤5 | 10m | 1 | A small amount of thread |
| The height difference between two adjacent boards | 3 | 10m | 1 | Using ruler |
| Plate bottom wall length | ±10 | 10m | 1 | Use ruler |
| Sheet seam filling mortar | full | 10m | 1 | Observed |
Note: The strength grade of the prefabricated reinforced concrete cover must meet the design requirements, and the appearance should be free from cracks, chipping, or other defects. Ensuring high-quality materials and careful installation will significantly enhance the longevity and performance of the ring ditch system.
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