过路构造物上方刚性路面板的补强设计方法研究

STUDY OF THE STRENGTHENING DESIGN METHOD OF CEMENT CONCRETE PAVEMENT ABOVE UNDERGROUND STRUCTURE

本文采用Winkler地基上弹性薄板的力学模型,应用有限元法计算过路构造物上方水泥混凝土路面在车轮荷载作用下的内力分布规律.通过计算和分析,提出水泥混凝土路面板合理的加筋长度.同时就过路构造物的埋设深度对面板受力状态的影响进行了分析.并对过路构造物的不同埋设深度提出相应的补强方案.

The regularity of distribution of the internal forces under wheel loads in rigid pavement above underground structure, such as curvert, underpass, have been caculatod by FEM with elastic thin plate theory on winkler foundation. By the analysis of numerical results, the reasonable length of reinforcement in cement concrete pavement is suggested. And the influence of the laying depth of underground structure on the internal forces in pavement has been analyzed. Lastly,appropriate strenthening schemes corresponding to different laying depths are proposed.