车辆振动对公路路基健康检测面波法的影响分析
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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。
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.
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.
引文
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[10]广东省物探工程勘察院.公路路基面波法检测的数据收集与处理[Z].东莞理工学院委托,2008.
[2]黄克超,张永辉.用瑞利波波速检测粗粒土,路基压实度方法的研究[J].公路,2004,(4):116-120.
[3]孙渊,丘斌煌,王赞文.瞬态面波法在公路软基勘查中的应用研究[J].西北地震学报,2006,(1).
[4]杨胜杰,冉磊,赖思静.面波技术在滑坡勘察中的应用[J].公路交通技术,2006,(5).
[5]刘宝亨.微动面波勘测法简介[J].铁路地质与路基,1997,(1).
[6]祁生文,孙进忠,何华.瑞雷波勘探的研究现状及展望[J].地球物理学进展,2002,(4):630-635.
[7]范云,汪英珍.瞬态瑞利波速计算方法及在填土质量检测中的应用[J].铁道标准设计,2006,(11):19-21.
[8]刘康和,魏树满.瞬态面波勘探及应用[J].水利水电工程设计,2001,(2).
[9]中华人民共和国行业标准,JG J/T143—2004,多道瞬态面波勘查技术规程[S].
[10]广东省物探工程勘察院.公路路基面波法检测的数据收集与处理[Z].东莞理工学院委托,2008.
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