详情

原文传递 Developing a new method for measuring pavement layer thickness

题名：	Developing a new method for measuring pavement layer thickness
责任者：	J Gopaldas, R B Lodge, A Wright
关键词：	not available
学科分类：	公路工程
摘要：	Knowledge of the thickness of the layers within a pavement is important when assessing the strength of the pavement. Ground penetrating radar (GPR) surveys are commonly used to measure these thicknesses but this technique requires that reference thicknesses are obtained from the pavement being surveyed. Obtaining this reference data has traditionally been a slow process because it requires removing large cores from the pavement and then reinstating the hole made. In this project a novel technique for measuring the thickness of the construction layers within a pavement is investigated. A technique is shown that is based on creating a small hole and using a borescope to obtain images from the exposed wall of the hole. Layer boundaries can be observed in the images. The theory behind the calculation of layer thickness using these images is explored and recommendations made for further work to develop the technique.
出版机构：	Transport Research Laboratory
提交日期：	23 April 2009
总页数：	26
报告类型：	科技报告
资源类型：	科技（咨询、行业）报告
初始创建时间：	23 April 2009