Bane makes his first major appearance in Rebirth during the "I Am Suicide" arc. There his origin is retold as he was born in prison and forced to stay in a underground cell that would flood every night. At age 4 he had to survive by swimming to the top of his cell to breathe and eat fish and rats, until the waters receded. He had to do this every night for 17 years.
In the "I Am Bane" arc, the similar but very different upbringing of Bruce and Bane are beautifully portrayed. Bane had a much harsher childhood and was able to kick thru a prison wall as a youth, even before being introduced to Venom.
Bane gets back on Venom and goes to Gotham City for revenge. Bruce tells the former Robins, the current Robin, and Lark to basically leave the city, b/c Bane will kill them if they don't. He states that Bane is stronger than them and maybe stronger than him. I think Bruce means having a stronger will b/c clearly Bane is physically stronger than him.
Bruce is so fearful for their lives that he takes them to the Fortress of Solitude, and asks Big Blue himself to watch over them. So basically cryogenic chambers, Superman, and the Fortress of Solitude is needed for protective custody against Bane.
Bane destroying everyone and everything in Arkham. Look at the fear on Solomon Grundy and Amygdala faces. Bane resist Scarecrow's fear gas b/c he doesn't have nightmares, "I give nightmares." Continues to punch his way thru bolted reinforced steel doors.
Bane completely dominates most of the fight and basically threatens to kill everyone that Bruce cares about, plus burn his city. But Bane becomes overconfident, and a near death Bruce suddenly gets renewed plot life energy from hearing his dead mother's voice. One Detective Comics cash-cow headbutt later, Batman prepares for his next comic arc and appearances in Justice League, Justice League of America, Trinity, All Star Batman, etc.
Bane and Batman are captured at different times by the same cult organization. They end up together in an underground dungeon and are tortured daily. The walls are carved from granite, but a weaken Bane is about to crack it from one punch. They communicate by speaking in at least three different languages switching from one to the other during the same conversation.
After torture Bane grabs a bolted toilet from the wall, and places it in the food tray slot. He also uses a pipe to break through the granite walls to escape his cell. After Bane does most of the work, Bruce follows his lead offering a little assistance. Bane breaks completely thru the wall, and along with Bruce they easily dispatch the guards.