The early damage of expressway asphalt pavement mainly presents as water damage, surfaceloosening, rut, crack, bleeding and so on.
高速公路沥青路面早期损害现象主要表现为：水损害、松散、车辙、裂缝、泛油等。
2
In the overlying basalt, there is high dip and wide tension fissure zone, which is combined with surface of unconformity which is as basal sliding face, to form loosening rock mass.