What Are The Types of Piles Constructed by Rotary Drilling Rigs And How To Differentiate Them？

1. Filled piles: rotary drilling rig drills holes, puts in reinforcement cages and then fills them with concrete, which carries the upper load of the building after hardening.

2. Prefabricated piles: prefabricated in factories or on site in advance, sunk into the ground with the assistance of rotary drilling rigs, the quality of piles is easy to control.

3. Friction Pile: Relying on the friction between the pile body and the soil body to support the upper load, the resistance at the pile end is small, suitable for the site with uniform soil quality and deep bearing layer.

4. End bearing piles: The load is transmitted to the lower hard bearing layer through the pile end, which requires a shallow bearing layer and can withstand large vertical loads.

5. Basis of Differentiation - Design Drawings: Drawings with detailed labelling of pile types, dimensions and bearing requirements are important references for differentiation.

6. Basis for differentiation - Construction process: The depth of drilling, lowering of reinforcement cage, concrete filling, etc. are different depending on the type of pile foundation.

7. Basis for differentiation - Geological conditions: Different pile foundations are adapted to different geological conditions, and the type of pile foundation can be preliminarily judged according to the geological conditions on site.

8. Conclusion: There are abundant types of pile foundation constructed by rotary drilling rigs, which can be distinguished from design drawings, construction technology and geological conditions. Accurate distinction helps to guarantee the quality of pile foundation construction and building safety.