特长隧道路面抗滑性能衰减规律研究

Study on Attenuation Law of Anti Sliding Performance of Super Long Tunnel Pavement

文中以某高速公路特长隧道为例,对该隧道中部5km路面抗滑性能进行了为期5年的跟踪测试,并对测试结果及产生原因进行了分析,结果表明,特长隧道路面抗滑性能持续衰减较快,整体呈现前期衰减较慢,中期衰减幅度较大,随后衰减幅度逐渐放缓。隧道路面抗滑性能衰减情况主要和隧道路面的特殊环境以及通行车辆、隧道路面原材料、结构和施工工艺有关。

Taking an expressway extra long tunnel as an example, the anti sliding performance of 5km pavement in the middle of the tunnel is tracked and tested for 5 years, and the test results and their causes are analyzed. The results show that the anti sliding performance of pavement of extra long tunnel will continue to decline rapidly, The overall attenuation is slow in the early stage, greatly increased in the middle stage, and then gradually slowed down. The attenuation of anti sliding performance of tunnel pavement is mainly related to the special environment of tunnel pavement, traffic vehicles, tunnel pavement raw materials, structure and construction technology.