混合草坪加强技术对足球场草坪质量和安全性能的影响研究

Effects of hybrid turf strengthening methods on the quality and safety performance of football field turf

加强型混合草坪是目前提高足球场草坪质量和使用强度最有效的草坪建植技术之一。加强型混合草坪分为3种类型:纤维加强式混合草坪、草垫式混合草坪和植丝式混合草坪。本研究以天然草坪为对照(CK),将纤维加强式混合草坪(沙+0.4%椰丝)、草垫式混合草坪和植丝式混合草坪作为试验处理,研究3种加强型混合草坪在长期持续中度践踏的条件下对草坪的表观质量、运动质量和安全性能的影响。结果表明:3种加强型混合草坪对草坪表观质量和运动性能均具有不同程度的提升效果,且能够有效减缓持续中度践踏条件下草坪表观质量和运动质量的衰退。其中,植丝式混合草坪在草坪盖度、草坪转动摩擦和反弹性能方面的效果更佳,纤维加强式混合草坪在草坪归一化差异植被指数、草坪密度、草坪表面硬度和头部损伤风险评估方面效果更佳,草垫式混合草坪在草坪密度、转动摩擦和反弹性能方面也具有一定积极作用,但效果不够显著和稳定。因此,3种加强型混合草坪是在保证草坪安全性能符合相关国际标准和要求的前提下,有效提升和稳定草坪表观质量和运动质量的有效方案。

Reinforced hybrid turf is one of the most effective turf construction technologies to improve the quality and sports performance of football field turf.Reinforced hybrid turf is divided into three types:Fiber-reinforced hybrid turf,carpet hybrid turf,and stitched hybrid turf.In this study,natural turf(control,CK),fiber-reinforced hybrid turf(sand+0.4%coconut fibre),carpet hybrid turf,and plant fibre hybrid turf were subjected to a long-term sustained moderate traffic treatment,and their apparent quality,playing quality,and safety performance were evaluated and compared.The three kinds of reinforced hybrid turfs performed better than did CK,but to varying degrees.The apparent quality and sports performance of the reinforced turfs were better than those of CK,indicating that reinforcement can effectively slow down the decline in the apparent quality and sports quality of turf under sustained moderate traffic.Among the various turfs,the stitched hybrid turf performed better in terms of turf coverage,turf rotation friction,and rebound performance;And the fiber hybrid turf performed better in terms of normalized difference vegetation index,turf density,turf surface hardness,and head injury criterion.Compared with CK,the carpet hybrid turf performed better in terms of turf density,rotational friction,and rebound performance,but these effects were not significant or stable.The results show that these three kinds of reinforced hybrid turf are effective solutions to improve and stabilize the apparent quality and playing quality of turf.The use of appropriate reinforced hybrid turf will ensure that turf safety performance meets the relevant international standards and requirements.