新旧路基回弹模量分析

Analysis on the rebound modulus of young and old subgrades

对便携式落锤弯沉仪进行了介绍,通过便携式落锤弯沉仪(PFWD)对新旧路基路面强度进行检测,得到了不同新旧路基之间的回弹模量差异,体现了PFWD的优越性,从而推广便携式弯沉仪的应用。

The Portable Falling Weight Deflectormeter （PFWD） is introduced. Based upon of the application of PFWD in strength inspection of the pavement and subgrade of young and old roads the differences of rebound modulus between young and old sugrades are obtained. The advantages of PFWD are summarized in order to promote its application in highway works.