摘要
以辽宁省在役高速公路隧道为研究背景,结合现场实际检查工作,通过实地对隧道病害的调查和描述以及地质雷达、隧道断面仪等检查手段,分析目前寒区隧道的病害现状,详细描述隧道渗漏水、衬砌开裂、厚度不足等病害特征,同时总结隧道的修建年份、病害所处区域的围岩级别、衬砌厚度等物理因素对病害发展的影响。研究表明:目前寒区高速公路隧道的病害主要集中在衬砌的开裂、渗漏水、二衬厚度不足及围岩脱空等。衬砌的开裂及二衬厚度不足的现象存在于每个隧道,衬砌渗漏水的隧道达到64.5%。同时根据统计分析发现,衬砌病害受运营时间、围岩级别的影响明显。其检查分析结果为隧道后期的养护和维修提供一定的参考。
By taking Liaoning province highway tunnel as research background, this article combined site actual detection work through detection means contain survey of tunnel disease in fact, description and geological radar, as well as tunnel section instrument. It analyzes cold district tunnel of disease status currently,describes disease features such as tunnel leakage water, lining masonry cracking, and thickness insufficient in great detail; meanwhile, it is summarized physical factors on disease development of effect like built year of tunnel, surrounding rock level belongs to rock, and lining masonry thickness. Studies show that diseases of highway tunnel in cold area at present focus on the crack of lining and leakage water, inadequate thickness of the repeated lining and the collapse of surrounding rock. Lining cracking and the lack of secondary lining thickness exist in each tunnel, lining of tunnel seepage water to reach 64.5%. Based on the statistical analysis, it is found that diseases of lining subject to hours of operation and level of surrounding rock distinctly. This detection and analysis provide some references to the tunnel late maintenance and repairs.
出处
《辽宁省交通高等专科学校学报》
2017年第4期1-5,共5页
Journal of Liaoning Provincial College of Communications
关键词
隧道病害
耐久性
围岩环境
修建时间
tunnel damage, durability, surrounding environment, time of building
