How Are Large-tonnage Rotary Drilling RIGS Applied in Deep Piles

Deep pile construction serves as the "underground foundation stone" for high-rise buildings, bridge foundations and other projects. Large-tonnage rotary drilling RIGS, with their superior power and stability, have become the core equipment for deep pile operations, and their application runs through the entire process from geological adaptation to hole quality control.

1. Geological adaptability adjustment: For complex geological conditions such as rock strata and pebble layers, large-tonnage drilling RIGS achieve efficient crushing and drilling by increasing torque output (up to over 600kN·m) and using dedicated wear-resistant drilling tools.

2. Ultra-deep hole formation control: By means of a long-stroke pressurization system and a high-precision verticality monitoring device, it ensures that the verticality error remains ≤1% even when the drilling depth exceeds 50 meters, avoiding the impact of hole deviation on the bearing capacity of the pile.

3. Drill pipe combination and adaptation: Multi-section telescopic high-strength drill pipes are adopted, with each section having a length of over 10 meters. Through intelligent splicing technology, the requirements for ultra-deep drilling are met, while reducing the time loss of drill pipe connection and disassembly.

4. Wall protection mud management: Equipped with an automatic mud proportioning system, it can adjust the viscosity and specific gravity of the mud in real time according to the hole depth, forming a stable wall protection in ultra-deep holes to prevent hole collapse and diameter reduction.

5. Load balance design: The machine body counterweight can reach the hundred-ton level, and in combination with the wide-base track chassis, it can reduce the ground specific pressure during deep pile operations and prevent ground settlement caused by the self-weight of the equipment.

6. Real-time parameter monitoring: Data such as drilling speed and bottom hole pressure are collected in real time through sensors. Operators dynamically adjust parameters based on feedback to ensure the continuity and stability of deep pile hole formation.

The application of large-tonnage rotary drilling RIGS in deep pile construction is a precise match between mechanical performance and engineering requirements. Through power enhancement, precision control and intelligent adaptation, it has broken through the operation bottleneck of traditional equipment in ultra-deep and complex geological conditions, providing key support for the safe and efficient implementation of deep pile engineering, and has become an indispensable "underground weapon" for modern deep foundation construction.