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沥青路面在铺筑使用后会产生各种各样裂缝,由于路表水的浸入,裂缝两侧的路面结构层和土路基的含水量增大,致使路基和路面强度降低。随着交通量迅速增加,特别是大吨位车辆行车荷载的作用,路基、路面承受不了超载车辆荷载的作用,加快路面的裂缝产生,大大缩短沥青路面的使用寿命。本文对沥青路面裂缝常见形式和裂缝产生的原因进行了分析,同时也提出了相应的防治措施。
Asphalt pavement will produce a variety of cracks after being paved. Due to the infiltration of road surface water, the moisture content of the pavement structure layer and soil subgrade on both sides of cracks increases, resulting in the decrease of roadbed and pavement strength. With the rapid increase of traffic volume, especially the load of large-tonnage vehicles, subgrade and pavement can not withstand the overload of vehicles and speed up the cracks in pavement, greatly shortening the service life of asphalt pavement. In this paper, the common forms of cracks in asphalt pavement and the causes of cracks are analyzed, and corresponding prevention and control measures are put forward.