EE was driving #6005 85 ton Komatsu truck into the south ramp of #2 pit. He stated the throttle stuck which caused him to drive into rocks at the digging face of the 1800 Hitachi shovel. The impact caused him to strike the visor in the cab which caused a scalp laceration. He also had a contusion to the left hand. He was wearing his seat belt which prevented a more serious injury.