地震波法检测水泥混凝土路面板脱空影响因素研究

为了研究地震波法检测水泥混凝土路面板脱空动力响应影响因素，基于水泥混凝土路面板角隅脱空试验，采用室内地震波法检测缩尺试件的试验方法，得出水泥混凝土路面角隅脱空路面板在含水和不含水不同振动参数状态下应变值的变化情况，分别对比不同角隅脱空面积的试验数据和不同锤击高度的试验数据，发现随着水泥混凝土路面板角隅脱空面积的增大，脱空区域的应变值也会随之增大；对于不同锤击高度的试验数据分析发现随着锤击高度的增大，对应脱空区域的应变值也会增大。另外，针对含水状态的分析，发现含水状态下脱空区域的应变值明显大于不含水状态下的应变值。

Study on Factors Influencing Cavity beneath Cement Concrete Pavement Slab by Seismic Wave Test Method

To study the factors influencing the dynamic response of cement concrete pavement slab with cavity thereunder by seismic wave test method, on the basis of corner void test on the slab, indoor seismic wave method was used for miniature specimen test to find out the change situation of strain value of watery and water-free cement concrete pavement slab with corner void under different states of vibration parameter. Then the test data from different corner void area and different hammer height were compared, respectively. It was found that, as the corner void area increased, the strain value therein increased; and as the hammer height increased, the corresponding strain value therein increased as well. In addition, the strain value in the void area under moisture condition was found through analysis to be greater than that under moisture-free condition.