陸上競技場人工サーフェスの簡易評価システムの開発

概要

論文の詳細を見る
The artificial surfaces of athletic stadiums comply with the standards of IAAF (International Association of Athletics Federations) and JAAF (Japan Association of Athletics Federations). The standards of IAAF consist of 10 properties, such as imperfections, sample thickness, orce reduction and modified vertical deformation. It is demanded that the stadium where the international athletic meet is held fills these standards. However, these standards are adapted at the time of the construction of the stadium. The repair standards related to the change of passing years and use frequency are not defined. In order to prevent the occurrence of sports injuries, it is necessary to make clear the changes according to the passing years of the stadium. The purpose of this study was to develop a system that is able to evaluate mechanical characteristics of the surface, the practicality of this system, and the surface objectively. The results of this study are as follows: (1)The form of pin and surface hardness exert an influence on the pressing of the pin. (2)The surface damage of the athletic stadium was determined by this system. Measurement items are thickness, the pressing displacement quantity of pin, hardness, restitution coefficient and surface observation. (3)This system is suitable for use as the pre-survey of the IAAF attestation organization, although it is a simple model.