What is the drilling speed of rotary drilling machine?
If you want to set a constant need for advance, the principle of servo rotary drilling, drilling efficiency and main pressure and bottom friction. It is no use adding pressure to the friction bar, which is only related to the critical value of the sliding friction force acting on the drill pipe. With this principle, torque and pressure servo can be achieved. Achieve optimum drilling efficiency, especially in soft formations.
This is related to construction, formation and pressure. You cannot set the constant penetration rate.
I just want to know that a range is the speed at which a hole is drilledIf you want to say the condition, the pressure is 6 tons. The construction stratum is a common surface soil layerQuaternary unconsolidated layer, gravel layer and bedrock layerAbout two meters in diameter
