Do those bottles have a screw on cap? If they do you may be able to open them just enough to release some of the pressure.
ShinyBuddha has it right you did over prime them a little. In my experience it has always worked been best to add the priming sugar/DME to the bottling bucket if you have one.
Primary 1 - Smash 1
Primary 2 - Smash 2
Primary 3 - Belgium Triple
Bottled - Oatmeal Stout, ESB, Belgium Light.