Author: Zhiyong ZhaoPublisher:
ISBN:
Category :
Languages : en
Pages : 332
Book Description
As traffic volumes grow and pavements age, city streets in urban areas are vulnerable to the potentially dangerous problems such as subsurface voids. These subsurface voids can significantly reduce the bearing strength of pavements and eventually result in the collapse of city streets. Several nondestructive testing (NDT) methods have been studied to detect subsurface voids during the past two decades. However, these studies mainly focused on detecting small voids close to the surface of the highway pavements. As far as urban area is concerned, few studies have been conducted to evaluate the capacities of NDT methods to locate subsurface voids. Moreover, congested and complex subsurface circumstance makes it more challenging to evaluate subsurface conditions.