摘要
研究了车载作用对饱水与干燥状态沥青路面的响应规律和水的存在对路面结构受力的影响。结果表明:水的存在抑制了路面荷载的传播,导致路面回弹出现滞后;与普通路面相比设排水层沥青路面受力欠佳,但设置排水层能在一定程度上消减面层中高孔隙水压,减缓了中—下面层的孔隙水压集中现象,有效抑制了动水压力对路面的破坏。
The response law of vehicle action on saturated and dry asphalt pavement is studied,and the influence of water on the stress of pavement structure is studied.The results show that the existence of water inhibits the propagation of pavement load and leads to the lag of pavement rebound.Compared with ordinary pavement,the stress of asphalt pavement with drainage layer is poor,but the setting of drainage layer can reduce the high pore water pressure in the surface layer to a certain extent,slow down the concentration of pore water pressure in the middle lower layer,effectively inhibit the damage of hydrodynamic pressure to the pavement.
作者
贾凯菊
JIA Kaiju(Tang County Road Maintenance Work Area of Baoding Transportation Bureau,Hebei Baoding 072350 China)
关键词
动水压力
沥青路面
车辆载荷
有限元模型
hydrodynamic pressure
asphalt pavement
vehicle load
finite element model
