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瞬态瑞雷面波勘探技术是一种较为新型的物探方法,在地质勘查及工程质量检测中具有广泛的应用前景。其实质是通过瑞雷面波的频散性,测得不同频率的瑞雷面波的传播速度,进而得到不同深度下岩土力学性质。本文介绍了瞬态瑞雷面波法的原理及其相应的工作方法。并将该方法应用于公路边坡注浆加固效果检测中,以某高速公路边坡为例,对边坡注浆前后分别使用该法,得到两组视横波速度数据,通过数据分析,该处注浆效果大部分较好,局部较差,表现为不均匀现象。通过实例,表明瞬态瑞雷面波勘探技术在本工作中的实用性和适用性,值得参考借鉴和推广。
Transient Rayleigh surface wave prospecting technology is a new type of geophysical prospecting method, which has a wide range of applications in geological prospecting and engineering quality inspection. The essence of Rayleigh surface wave through the dispersion of measured the different frequencies of Rayleigh wave propagation speed, and then get the mechanical properties of rock under different depths. This paper introduces the principle of transient Rayleigh wave surface method and its corresponding working method. The method is applied to test the effect of slope grouting reinforcement. Taking a highway slope as an example, two methods are used to measure the apparent shear wave velocity before and after grouting. Based on the data analysis, Grouting effect most of the better, the local poor, showing uneven phenomenon. The example shows that the practicality and applicability of the transient Rayleigh wave surface prospecting technology in this work are worthy of reference and promotion.