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车辆振动对公路路基健康检测面波法的影响分析
Effects of Traffic Vehicles on Roadbed Health Monitoring by Surface Wave Method
【摘要】 面波法在建设前和建设期间的公路路基勘测技术早已成熟,但用此技术对正在运行的公路路基进行健康检测的研究尚无先例。交通车辆的振动噪音阻碍了人们对公路路基定期进行无损检测的尝试,从而不能对潜在问题采取预警措施。通过一系列实测数据,经对比有无车辆时的面波记录,并分析两种状态下面波记录组成频率的不同,总结正常运行状态下公路路基健康检测的面波法经验与建议。通过有无车辆时面波法所得路基土层力学特性的对比进一步证明了本文所给经验和建议。
【Abstract】 Surface wave method has been widely used in roadbed exploration,but never in health monitoring of normal running roads,which is disturbed by vibrations caused by traffic vehicles.Vibration noises caused by traffic vehicles have prevented people from health monitoring of roadbed and warning of any potential problems.Based on a series of in situ data,surface wave records for roads without traffic are compared with those for the same roads with traffic.Through analyzing of the frequency spectrums for two different road states(with traffic and without traffic),some useful experiences and advices for health monitoring of normal running roads by use of surface wave method are given in this paper.Through comparison of mechanic properties for under layer soils,the advices given in this paper are proved further.
【Key words】 traffic vehicle; roadbed; health monitoring; surface wave method; effect analysis;
- 【文献出处】 公路工程 ,Highway Engineering , 编辑部邮箱 ,2010年01期
- 【分类号】U416.1
- 【被引频次】2
- 【下载频次】68