This drive-in type sleeper anchor is installed by making holes in the sleeper and fixing the
sleeper anchor with anchor bolts.
Ballast excavation is not required, which enables construction even during extremely hot seasons.
Also this sleeper anchors shall be used to reduce track lateral shift and prevent
buckling at sharp curves, because they enforce the ballast lateral resistance.
The track alignment can be done by just removing drive-in piles after installation.