城市道路检查井井周受力分析研究

Mechanical analysis of urban road inspection shaft

考虑城市道路车辆行驶特性前提下,对检查井进行力学计算分析.利用有限元软件ABAQUS建立检查井井周路面承受汽车荷载和撞击力的力学计算模型,分析检查井周边路面受力情况.本文选取了井周钢筋混凝土结构和沥青结构中主要受力点进行拉、压应力及剪应力分析,通过改变各点的荷载值大小发现各点的应力变化规律及受力发生破坏的特征,为以后的结构设计及施工提供理论指导.

Considering urban road traffic characteristics, we carried mechanical calculation analysis of urban road inspec- tion shaft. Via finite element software ABAQUS, we established a mechanical model of impact force and checked stress distribution around the shaft. We selected the main pressure points of reinforced concrete structure and asphalt structure to carry out compressive stress and shear stress analysis by changing the load of each point values. In this way, we found the size of the stress variation and stress damage area to provide the reliable theoretical basis for future design and construction of inspection shaft.