作为高级路面之一的沥青混凝土路面,由于其具有表面平整、无接缝、行车舒适、耐磨、振动小、噪音低、施工期短、易修补、易改造等特点,在国内、外公路建设中得到广泛运用和迅猛发展。我国的高速公路,90%以上是沥青路面,且多半以半刚性基层的沥青路面为主。对于高速公路、一级公路、二级公路的沥青混凝土面层和半刚性基层还要进行层底拉应力的验算。 As one of the advanced pavement, the asphalt concrete pavement has the advantages of smooth surface, no seams, comfortable driving, low abrasion, small vibration, low noise, short construction period, easy repairing and easy reformation. As a result, Has been widely used and rapid development. More than 90% of the expressways in China are asphalt pavements, and most of them are mainly asphalt pavements with semi-rigid base. For expressway, first-class highways, secondary asphalt concrete surface and semi-rigid grassroots grass-roots layer also carried out stress checking.