Meanings of great ruts in английском

There were shellholes now, great ruts into which the car dropped and pulled out again with a jerk.

One part, named the Nispral, was especially steep and difficult to descend, the road being worn into great ruts.

The wheels of the cannon cut great ruts in the prairie, and the feet of the horses sank deep in the mud.

The wagons had cut the snow into great ruts which made walking difficult, and where it was smoother it was exceedingly slippery.

The approach was like a turnpike road full of great ruts, clumsy mendings; bordered by trampled edges and incursions upon the grass at pleasure.