7月21日,罕见的大雨袭击了我国华北地区,8月初,台风“达维”和“海葵”相继来袭,带来大范围的强降雨;随着极端气候现象的增多,近年各地频遭暴雨侵袭。降水进入路面,在动水压力作用下,易造成路面严重破坏,甚至造成路面结构的崩溃;防治水损害最重要的是消除新旧路面之间的弱接缝、弱界面,改善路面的封水性能,各地施工表 On July 21, a rare heavy rain struck northern China. In early August, typhoon David and Anemone came in succession, causing extensive heavy rainfall. With the increase of extreme climate events, In recent years, frequent heavy rains have hit China. Precipitation into the pavement, under the action of hydrodynamic pressure, can easily cause serious damage to the pavement and even cause the collapse of the pavement structure. The most important for water damage prevention is to eliminate the weak seams and weak interfaces between the old and new pavements and improve the sealing performance of the pavement Construction around the table