From my exposure to Kung Fu movies, I believe that the Chinese (or at least parts of Chinese culture) bury their dead standing on end. I guess the "screw 'em in" approach is novel.
But, I think any cemetery that wanted a standing-room-only set of plots would just put the big fencepost rig on their back hoe. I can only imagine hand cranking a coffin sized plug into the ground would get pretty painfully difficult after about two feet.