They were not going to clear the shaft wall.

I want you to let them know how things are up here: that the shaft wall is cracked, the cutting team trapped.

Framed by the dark shaft walls, the pink sky above was very bright.

At first there was just the shaft wall sliding by as the picto-recorder went down.

Conrad's voice seemed to bounce up and down the shaft walls.

I pulled my body tight against the shaft wall.

The sparks issued from the electrical control box on the shaft wall.

He began scaling the emergency ladder on the shaft wall.

There was a kind of doorway in the shaft wall behind him, low and narrow.

I have run a current through the shaft walls.