roof fall

Prevention and Treatment of Collapse and Roof Fall in Shallow Buried Highway Tunnel

公路隧道浅埋段塌方冒顶的预防与治理

Processing Scheme for Roofdrop and Landslide of the Shallow-buried Section of Diversion Tunnel in the Longjiang Hydropower Station

龙江水电站导流洞塌方浅埋段冒顶塌方处理方案

The roof or walls will not cave in.

坑顶或边墙不能塌方。

Go back! The roof is falling!

退开！房顶要塌啦！

Common Methods for the Treatment of Roof Collapse of Drift in Jinchuan Mining Area and Evaluation

金川矿区巷道冒顶处理的常用方法及评价

The weight of the snow caved in the roof

雪的重量压塌了房顶。

The top of the car is cave in by the impact.

那个冲击使得车顶塌了。

The top of the car was caved in by the impact

那个冲击使得车顶塌了

The chimney toppled over on the roof.

烟囱倒塌在屋顶上。

crestal collapse fracture

背斜顶部的塌陷裂缝

vibrations will cause the roof of the mine to collapse.

震动会引起矿顶塌落。

When did the roof cave in?

屋顶是什么时候坍塌的？

The roof of the tunnel caved in (on the workmen).

隧道顶坍塌（压住工人）.

The roof threatened to fall in.

屋顶有坍塌的危险。

The roof of the tunnel caved in.

隧道的顶部塌陷了。

The roof of the tunnel fell in.

隧道顶部塌了下来.

The roof collapsed under the weight of the snow.

屋顶在积雪重压下塌陷。

The weight of the snow collapsed the roof.

积雪的重压使屋顶塌陷。