铁路路基挡土墙质量无损检测的研究
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摘要
本论文提出使用地震波速法和地质雷达法检测路基挡土墙的强度和几何尺寸 ,是一种快速、简便、无损、有效的检测方法。此方法通过测定某些适当的物理量 (如 :弹性波速度、电磁波速度等 ) ,并通过这些物理量与浆砌片石相关性 ,确定墙体的尺寸、强度等性能。本论文的主要内容有 :地震波速法检测挡墙强度原理的研究 ,地质雷达法检测墙体几何尺寸的原理的研究 ,挡墙材料强度与波速的相关关系的室内试验研究 ,现场挡墙检测和评价。本论文的研究有效地解决了在墙体开孔、开槽取样验证对墙体有破坏性的问题 ,可快速准确地找出路基挡墙的隐患。对确保行车安全有十分重要的作用 ,具有显著的经济和社会效益
This paper puts forward a method of fast, handy, no destructive and effective testing which can be used to test the strength and geometrical dimension of subgrade abamurus using the method of earthquake wave velocity and GPR (ground penetrating radar). This method can be used to definite the dimension and strength of abamurus by determining some physical parameters (such as elastic wave velocity and electromagnetic wave velocity etc.) and by the correlation of these physical parameters with mortar flag stones. The main contents of this paper are as follows: the research of principle of testing the strength of abamurus using earthquake wave velocity, the research of principle of testing the geometrical dimension of abamurus using GPR method, the research of laboratory test of the correlation of the strength of abamurus with wave velocity and the field test and estimation. The research of this paper has effectively solve the trouble that perforating and slotting on the abamurus for sampling and validating is destructive, and can fleetly and accurately find the hidden danger of subgrade abamurus, so play an important role for ensuring safe driving. There are remarkable economic and social benefit.
This paper puts forward a method of fast, handy, no destructive and effective testing which can be used to test the strength and geometrical dimension of subgrade abamurus using the method of earthquake wave velocity and GPR (ground penetrating radar). This method can be used to definite the dimension and strength of abamurus by determining some physical parameters (such as elastic wave velocity and electromagnetic wave velocity etc.) and by the correlation of these physical parameters with mortar flag stones. The main contents of this paper are as follows: the research of principle of testing the strength of abamurus using earthquake wave velocity, the research of principle of testing the geometrical dimension of abamurus using GPR method, the research of laboratory test of the correlation of the strength of abamurus with wave velocity and the field test and estimation. The research of this paper has effectively solve the trouble that perforating and slotting on the abamurus for sampling and validating is destructive, and can fleetly and accurately find the hidden danger of subgrade abamurus, so play an important role for ensuring safe driving. There are remarkable economic and social benefit.
引文
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