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The combination of corrugation and the circular tube results in an extremely strong structure. 波浪纸板和圆筒状两者结合，会成为非常坚固的构造。
According to the size and height of the falling rock block, the thickness of the circular tube can be determined, which can provide the foundation of designing the escape passage system. 同时，根据岩块大小和下落高度，可以通过计算凹陷变形而确定圆管厚度，为逃生管道的安全设计提供依据。
The results show that the displacements of the procumbent circular tube under lateral impact are mainly local depression around the impact point and the global deformations can be neglected. 实验研究与数值模拟结果表明，砂垫平铺圆管的横向冲击变形主要为冲击点局部凹陷，结构的整体弯曲变形可以忽略。