论文部分内容阅读
以跨江(海)隧道匝道入口长大纵坡刚性基层复合式路面为背景,分析坡度与路面切向荷载和竖向荷载的关系,同时采用三维有限元模型研究坡度对刚性基层复合式路面路表弯沉、各层最大拉应力和剪应力的影响,结果表明坡度对路面切向荷载分量有较大影响,坡度对路表弯沉的影响可以忽略,面层最大拉应力和最大剪应力均随着坡度的增长而加大,对基层和底基层则影响极小,长大纵坡复合路面结构分析时应考虑坡度和路面切向荷载的影响。
The relationship between the slope and the tangential load and the vertical load of the pavement is analyzed based on the composite foundation of the longitudinal long-span rigid base course at the ramp of the cross-river (sea) tunnel. Simultaneously the three-dimensional finite element model is used to study the effect of gradient on the rigid base pavement The results show that the gradient has a great influence on the tangential load component of the pavement, and the effect of slope on the deflection of the road surface can be neglected. The maximum tensile stress and the maximum shear stress of the surface layer With the increase of slope, it has little effect on the grassroots and subsoil. When analyzing the structure of the compound longitudinal pavement, the influence of slope and tangential load should be considered.