Views: 0 Author: Site Editor Publish Time: 2025-08-08 Origin: Site
As a key equipment in pile foundation construction, the rotary drilling rig's pressurization method directly affects the efficiency and quality of hole formation. Different pressurization methods are suitable for different geological conditions. Understanding their characteristics is helpful for optimizing the construction plan.
1. Cylinder pressurization: Pressurization is achieved through the extension and retraction of the hydraulic cylinder, with stable output force and flexible adjustment. It is suitable for medium soft texture layers such as clay layers and sand layers, and can precisely control the drilling speed.
2. Winch pressurization: By using a winch to extend and retract the steel rope to drive the drill pipe for pressurization, the structure is simple and the cost is low. However, there is a lag in pressure transmission, making it more suitable for operations in strata with lower hardness.
3. Combined pressurization: By integrating the advantages of the oil cylinder and the hoist, the mode can be switched according to geological changes. It performs well in complex strata, balancing efficiency and stability.
4. Constant pressure pressurization: Maintain a constant pressure through the hydraulic system to avoid the impact of load fluctuations on drilling. It is especially suitable for rock layer construction with high requirements for the stability of the hole wall.
5. Graded pressurization: Adjust the pressure in stages according to the hardness of the formation, gradually adapting from low to high. It can reduce the wear of drilling tools and extend the service life of equipment.
6. Automatic pressurization: Relying on sensors and control systems to automatically adjust pressure, it reduces manual intervention. In the context of automated construction, it can significantly enhance the accuracy of operations.
In conclusion, the pressurization methods of rotary drilling RIGS vary in focus and should be reasonably selected in combination with geological and engineering requirements and other factors. An appropriate pressurization method can not only enhance construction efficiency but also ensure the quality of pile foundations, laying a solid foundation for project safety.
