瞬态瑞利波法在强夯地基检测中的应用分析

在强夯地基检测工作中,要求对强夯处理后地基的均匀性、有效加固深度、强夯置换墩着底情况等进行检测。本文通过分析瑞利波波速和频散曲线特征,进行强夯地基瑞利波法检测试验工作:采用强夯后的瑞利波分层波速分析强夯后地基的均匀性,通过夯前、夯后瑞利波频散曲线特征分析强夯地基的有效加固深度,通过瑞利波频散曲线特征分析强夯置换墩着底情况并与钻探结果进行对比,试验表明采用瑞利波法对强夯地基进行检测能取得较好效果。

Analysis on the application of transient Rayleigh wave method to the inspection of dynamic compaction foundation

In the inspection of dynamic compaction foundation,the soil uniformity,the effective reinforcing depth and the touch ground of the dynamic replacement columns after the soil treatment should be inspected.Based on the analysis on the wave velocity and the dispersion curves of transient Rayleigh wave,the inspection of the foundation is carried out by using Rayleigh wave method.After the dynamic compaction of foundation,the uniformity of the foundation is analyzed by using the stratified wave velocity of dynamic Rayleigh wave.Through the features of the Rayleigh wave dispersion curves before the dynamic compaction and after the compaction,the effective reinforcing depth of the compacted foundation is analyzed,and the bottom conditions of the dynamic replacement columns are analyzed,which are compared with the drilling results.The testing is shown that the inspection of the compacted foundation by using Rayleigh wave method could achieve the favorable effects.