arch crown block 拱顶石
arch crown of main powerhouse 主厂房顶拱
arch crown concrete 拱顶混凝土
cracks of arch-crown 顶拱裂缝
cracks of arch crown 顶拱裂缝
arch crown beam profile 拱冠梁剖面
The blasting vibration rules of arch crown and upper and side surrounding rocks behind tunnel face are studied.
研究隧道掌子面后方隧道拱顶、掌子面正上方和侧面围岩的爆破振动规律。
In addition, comparison of arch crown settlement and horizontal convergence of haunch between in-situ testing data and computing ones shows that the variation laws fit preferably.
另外，现场实际量测拱顶下沉数据和拱腰水平收敛值与计算数据的相互比较表明，两者变化规律吻合较好。
The keystone in the crown of an arch.
给…盖拱顶给…建造或盖以拱顶；
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