How Does A Rotary Drilling Rig Drill Rock

When rotary drilling RIGS are used in rock strata for construction, they need to rely on special working principles and supporting equipment to break through hard rock layers. Its rock-breaking process integrates the coordinated effects of mechanical force, hydraulic control and drill bit design, demonstrating an efficient ability to break rocks.

1. Drill bit selection: Specialized drill bits should be chosen for different rock types. For instance, cone drill bits are suitable for medium-hard rock, while toothed drill bits are appropriate for soft rock. The special cutting structure can concentrate the impact force and achieve rock fragmentation.

2. Force generation by the pressurization system: Axial pressure is applied to the drill pipe through the oil cylinder or winch, enabling the drill bit to continuously penetrate the rock layer. The pressure is dynamically adjusted according to the hardness of the rock to prevent equipment overload.

3. Rotating rock crushing: The drill pipe drives the drill bit to rotate at high speed, and the cutting teeth rub and squeeze against the rock violently. The rock breaks into small pieces under the action of shear force and is discharged with the drill cuttings.

4. Mud wall protection assistance: Mud is injected during rock drilling to form a wall protection and prevent the hole wall from collapsing. Meanwhile, the mud can cool the drill bit, reduce wear and improve drilling efficiency.

5. Graded drilling strategy: When encountering hard rock strata, adopt a small pressure and slow rotational speed for initial crushing, and then gradually increase the parameters. Phased advancement can reduce the risk of stuck pipes and ensure the continuity of construction.

6. Real-time monitoring and adjustment: Data such as drilling pressure and rotational speed are monitored through sensors, and parameters are adjusted in a timely manner. Optimize operations based on rock feedback to ensure a stable and efficient rock-breaking process.

Rock drilling by rotary drilling RIGS is a comprehensive reflection of mechanical performance, process strategies and real-time control. By rationally matching drill bits, parameters and auxiliary means, it can effectively deal with various rock strata and provide reliable guarantees for pile foundation hole formation. The coordinated cooperation among different links not only enhances the construction efficiency but also expands the application capacity of rotary drilling RIGS in complex geological conditions.