The movable roof favors the flexural structural system that is less sensitive to boundary conditions and can be adaptive to the large deformation and construction error.
活动屋盖应采用整体刚度较小、对边界条件不敏感的柔性结构，对安装误差与结构变形具有较大的适应能力；
The impulsive dynamical pressure from frequent blasting has a strong influence on designed tunnel contour, construction error and stability of surrounding rock in the course of excavating tunnel.
在隧道爆破开挖中，频繁反复的爆破冲击动压力对隧道设计轮廓线、施工误差和围岩的稳定性等有很大影响。
The impulsive dynamical pressure from frequent blasting has a strong influence on designed tunnel contour, construction error and stability of surrounding rock in the course of excavating tunnel.
在隧道爆破开挖中，频繁反复的爆破冲击动压力对隧道设计轮廓线、施工误差和围岩的稳定性等有很大影响。
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