【摘要】 论述了混凝土路面板板下脱空形成的机理和危害,介绍了现在广泛使用的两种脱空检测方法,即FW D落锤式弯沉仪检测法和GRP探地雷达检测法,着重阐述了利用瞬态冲击法进行路面板脱空检测的理论基础,并通过一模型试验进行脱空检测的模拟,其结果证明了该方法在理论、试验上是可行的;并在实际路面板上做了相应的试验,得出的结果和模型试验的结果相一致。并对今后的研究工作做出了展望。更多还原

【Abstract】 The causes of void in the cement concrete pavement are analyzed,and some void identification methods for pavement over last few years are summarized.As so abroad employed,the work principle and application of FWD(Falling Weight Deflectometer) and GPR(Ground Penetrating Radar) are provided in the paper.The basic theory of the testing on pavement suspending using transient impulse are expatiated detailedly.The results of the model experiments prove the feasibility of the method.The testing on the real pavement using this method is also done,and it’s results are agreed with the results of the model experiment.Last,the study content in the future is also put forward.更多还原