水泥混凝土路面脱空检测仪与FWD对比测试分析研究

The Analysis and Research of the Testing and Analysis of the Deflation Tester and the FWD in the Cement Concrete Pavement

加铺前对旧水泥混凝土板进行细致全面的修补是一项十分关键的内容,直接影响到加铺层的路面使用性能和使用寿命。论文拟通过多种验证手段来论证各种板底脱空检测方法的准确性和可靠性,最终找寻出精准度高、效率高、实用性的检测方法。采用落锤式弯沉仪(FWD)、声振检测两种手段。其中落锤式弯沉仪(FWD)检测得到的数据,通过两种算法进行板底脱空判断。

It is a very key content to repair the old cement concrete slabs carefully and comprehensively before paving,which directly affects the performance and service life of the pavement.In this paper,various verification methods are used to verify the accuracy of various plate bottom void detection methods,and finally to explore accurate,low cost,fast,practical and operable detection methods.The detection methods used in this paper are(FWD),acoustic vibration detection of falling hammer deflector.Among them,the data detected by the falling hammer deflector(FWD)are used to judge the bottom void of the plate by two algorithms.