I. Things to Consider When Building a Tennis Court Facility
When constructing a tennis court, it's essential to follow the specifications outlined in the design documents carefully. One of the key elements is the construction of the net base. A standard tennis court requires two net posts to support the net. If the foundation of these posts isn't deep enough or the base isn't wide enough, it can lead to instability. This often results in leaning or even tilting of the net posts, especially when the tension on the net is high. Over time, this can cause cracks in the base, allowing rainwater to seep in and leading to frost heaving in colder months, which can damage the entire court surface. As shown in Figure 5.8, proper installation is crucial for long-term stability. The official singles net length is 10.06 meters, while the doubles net is 12.80 meters. The distance between the net posts should not be less than these measurements. It's also possible to use double-stranded net posts as an alternative to single ones, but during actual matches, the standard single net posts must be placed in their designated positions to meet competition rules.
2. Fencing Around the Court
A fence is typically installed around the tennis court to ensure safety and prevent balls from escaping. The fence is usually made of steel pipe columns and wire mesh with a 5cm x 5cm mesh size. The color is usually green or blue, and the height ranges from 4 to 6 meters. The columns should be buried at least 0.7 meters deep and filled with C20 concrete. If there is no steel fence but instead a solid wall surrounding the court, a wall-hanging net must be installed during competitions. This soft woven net should be 2.5 meters high and at least 20 meters long, also available in green or blue. It provides additional protection and ensures that balls don’t go out of bounds.II. Checking the Moisture Conditions of the Asphalt Base
Polyurethane plastic surfaces are commonly used on top of asphalt concrete bases. However, these materials are sensitive to moisture. If the asphalt base contains any water, bubbles will form shortly after the polyurethane is applied. These bubbles can grow over time due to temperature fluctuations, ranging from small pockets of 3 cm in diameter to large areas up to 1 square meter. In severe cases, this can lead to extensive repairs or even the complete replacement of the surface, especially in smaller courts. The main cause is often moisture trapped within the asphalt base layer. To avoid such issues, it's crucial to check the moisture level of the base before applying the polyurethane surface. Since advanced electronic instruments aren't always available, two simple methods can be used: - **Closed Inspection Box Method**: Use a transparent acrylic box (40cm x 40cm x 5cm) sealed on all sides except one open side. Place the box against the asphalt base and seal it with plasticine. After 24 hours, check if any moisture vapor has formed inside. If not, the base is dry and ready for the surface layer. - **Plastic Film Test**: Lay a plastic sheet larger than 50cm x 50cm on the asphalt base, secure the edges with sand and small bricks, and leave it for 24 hours. If steam bubbles appear under the film, it indicates moisture is present, and the surface should not be laid yet. If no moisture is detected, the base is dry and suitable for the polyurethane layer. By following these steps, you can significantly reduce the risk of defects and ensure a durable, high-quality tennis court surface.Shijiazhuang Asa Technology Co., Ltd. , https://www.hskinlift.com