The formulea for penetrating depthes of irregular cracks were derived from the principle of pene-rant inspection and the formulea for the penetrating depthes of regular cracks.
从渗透检测原理和规则裂纹渗透深度公式入手。推导出不规则裂纹渗透深度的公式。
2
Application of ground penetrating radar in projects indicates that its application in old cement concrete pavement retrofitting is feasible and it may overcome restriction by common inspection method.