Why did the trenchless drill pipe break during construction?

1: The trenchless drill pipe has been used for too long, the surface is damaged, and the fatigue life is close to or beyond the fatigue life. Replace the new drill pipe in time.

2: The drill bit suddenly hits a hard surface. The object produces a strong impact force, causing a sudden increase in torque, causing the trenchless drill pipe to break or twist. The operator should reasonably control the rotation speed and propulsion force when operating the trenchless drill rig to avoid such situations.

3: The surface of the drill pipe body is severely scratched (more than 1 mm deep and in a spiral shape). Avoid using drill pipes with scratches

From Ask Me Construction