You have a few options for working with a driveway as a part of your containment system.
If your driveway is concrete, you can place the boundary wire in a convenient expansion joint or create a groove using a circular saw and masonry blade.
If you do not wish to cut your driveway and an expansion joint is not an option, you may want to consider using a double loop layout (See: What is the double loop layout and why do I need to do it?). You may also want to reconsider your layout and avoid the driveway as a part of your containment area.
Gravel or Dirt Driveway
If your drive is gravel or dirt, you can run the boundary wire through a PVC pipe or section of water hose to protect the boundary wire. Then bury the pipe or hose and wire.