冻结立井表土段井壁破坏规律研究

The research about the fracture regularity of the frozen shaft wall in surface soil

通过对表土段立井井壁破坏原因的分析 ,以及对危险点的应力状态的研究 ,揭示了立井井壁破坏的规律性 ,并以此为依据提出了防范井壁破裂的具体措施 。

In this paper, through the analysis of the reason about the fracture of the shaft wall in surface soil and the research about the stress state of the danger point, the regularity about the fracture of the shaft wall is found out. On this basis the measure which is used to prevent the fracture of shaft wall is advanced. These measures and the analytical solution about stress in this paper as well as the strength theory which is used to examine the fracture of shaft wall have great significance in guiding engineering design and construction field.