Can a dogs bladder really burst?

I just adopted an adult dachshund and ive never had this problem ever with any dog. When I first brought him home I created a spot on the porch for him to pee and he used it but had several accidents on the carpet as well. as i began to follow the regimen of watching him 24/7 and crate training so there would be no more carpet accidents he just stopped going to the bathroom completely. hes been holding it now for nearly 30hrs. theres no reason he cant use the porch, its clean and away from his food and bedding. i even left him alone so as not to be staring at him....i know the second i leave him alone in the house he'll go on the carpet but i refuse to lose this battle but at the same time i dont want him to get an infection from holding it. THERE IS NO REASON HE CANT USE HIS SPOT ON THE PORCH. I feel as if im gonna go crazy with this stubborn animal please help I need advise