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我国修建的半园式田径场地,多数均设计为85.96米直段的半园式400米场地,为了占地少些,3000米障碍跑较多采取第四栏架(水池),没在第二弯道内突沿里边,接近弯道的弧顶处。这种场地设计,对运动员无论是跑速与跨越障碍技术的充分发挥,都受到一定的限制。目前在80米直段的半园式田径场地上,对3000米障碍跑第二弯道直段跑道的设计有其特点,解决了上述不足之处。但就我国目前各地田径场地的具体现状,要改建成80米直段的半园式400米场地,而进行整个翻造或改建,具有相当的困难,如现有各地的田径场周围,一般都建有看台等建筑。我们考虑到今后在我国举行的国际性
The semi-circular track and field venues constructed in our country are mostly designed as the semi-circular 400m site of 85.96m straight section. In order to occupy a smaller area, the 3000m obstacle run adopts the fourth rack (pool) rather than the second Bending within the edge of the curve, near the curve at the top of the curve. This kind of site design has certain restrictions on the athletes’ full play of running speed and crossing obstacle technology. Currently in the 80-meter straight section of the semi-circular track and field venues, 3000 meters barrier run second straight runway design has its own characteristics, to solve the above shortcomings. However, with regard to the actual situation of track and field venues in various parts of China at present, it is quite difficult to reconstruct a semi-circular 400-meter site of 80 meters in straight section. However, it is quite difficult to carry out the entire renovation or reconstruction. For example, Built stands and other buildings. We consider the international nature to be held in our country in the future