New artificial lawn doors Stadium

New artificial lawn doors Stadium

Pillar on the basis of the current standard door pitch dimension map of a circle with a radius r, respectively 2M r 5M circle, forming a radius r 2M circular column area and the internal diameter of an R-3M annular zone (in order to increase the technical difficulty, the radius of the column can be set as r 3M, ring outside the arc along pushed to r 6M); column axis points, four vertical game line draw four vertical bisector stadium divided into four exocyclic; corner vertices the four corners to the center and radius r 1.5M arcs tangent edges to form four sectors protected areas. So gateball court divided into a column district, an annular zone, four ring outside the area, the four corners of protected areas, a total of 10 regions. The 2M × 1M rectangular area from tee instead of 1M × 1M square area above line segment to the croquet court clear calibration. Newly calibrated size door stadium entertainment and competitions Let us call it the "new croquet.

artificial lawn moving door stadium quality requirements based mainly in three aspects: hardness, flatness and drainage slope. Commonly used artificial lawn Gate stadium foundation three categories: asphalt base, cement foundation, gravel base, which type is mainly by the local climate and environment and budget decision time use, especially suitable for the north a large temperature difference between the low winter temperatures climate and environment also because it is expensive for a warm, humid environment is not the most suitable foundation type, gravel foundation because of its simple construction, low cost, rapid drainage, more common in the South, but because of its rigidity and stability artificial lawn gate stadium foundation type prone to foundation loose after prolonged use, leading to uneven foundation; Therefore, in most regions of the domestic cement concrete foundation has become economical and practical, the cost is very high.