It may not be as difficult as you may think. I found this terrific link from a local nursery with really great pictures. http://www.bamboogarden.com/barrier%20installation.htm
I think the key item is to make it obvious when the bamboo 'escapes' the barrier you define. Ideally, planting bamboo with a physical barrier is the best method to control it. But if that isn’t the case, then digging a trench so you can see the rhizomes as they try to spread and you can cut them while young.