In the construction of infrastructure such as bridges and high-rise buildings, bored piles serve as the foundation's cornerstone, making their construction quality crucial. However, a frequently overlooked step—pile head removal—is the final checkpoint to ensure the quality of the pile foundation works.

The quality of pile head removal directly impacts the bearing capacity of the pile foundation, making the choice of an appropriate removal method vital.

Manual Pneumatic Pick

A traditional method involves workers using a pneumatic pick to chisel away the pile head concrete to the designed elevation. This method is simple, flexible, and adaptable, causing minimal damage to the pile body while ensuring a smooth and quality pile head.

However, it has drawbacks such as high labor intensity, slow construction speed, significant noise, and dust generation during operation, which can pollute the environment and affect workers' health.

Application Scenario: Suitable for small to medium diameter piles, pile heads slightly above the ground, low-strength pile head concrete, or projects with relaxed schedules and site conditions that limit the use of large machinery.

Circular Cutting Method

This method involves drilling a series of equidistant holes around the pile head at the designed elevation, then using specialized circular cutting tools to cut the pile head in a ring shape.

The circular cutting method offers advantages such as fast construction speed, high precision, and minimal damage to the pile body. The resulting pile head is accurately leveled and smooth, significantly reducing labor intensity.

However, it requires high equipment costs and technical and operational expertise. It is also unsuitable for irregularly shaped or specially designed pile heads.

Application Scenario: Suitable for regular-shaped pile heads, high-strength concrete, or situations requiring quick removal and strict elevation requirements.

Hydraulic Breaker Method

This method involves mounting a hydraulic breaker on the excavator arm, using the impact force generated by the hydraulic breaker to crush the pile head concrete.

The hydraulic breaker method is efficient and easy to operate, with strong controllability, allowing adjustment of the impact force through the hydraulic system to suit different concrete hardness.

However, the hydraulic breaker's high impact force can damage the internal structure of the pile if not handled properly. The method also generates significant noise and vibration, affecting the surrounding environment.

Application Scenario: Suitable for situations requiring fast, efficient pile head removal where noise constraints are minimal.

Mechanical Hydraulic Pile Breaker

The pile breaker can apply pressure to multiple cylinders simultaneously, driving chisels distributed radially around the pile, compressing the pile body like multiple breakers working at once.

The pile breaker is highly adaptable, capable of quickly completing the removal of large pile heads, with construction efficiency tens of times higher than manual pneumatic picks. It can achieve relatively smooth removal surfaces and minimize damage to the pile's internal structure. The operation is simple, efficient, and safe.

Application Scenario: Ideal for rapid pile head removal in large pile groups, especially in projects with tight schedules or high-strength pile head materials requiring significant force to break. 

BeiYi manufactures round pile breakers for diameters from 600mm to 2500mm, customizable up to 3300mm, and square pile breakers for side lengths from 350mm to 650mm, meeting the requirements of various large-scale foundation constructions. Since its market launch, the pile breaker has maintained a 0% return rate.

BeiYi Machinery offers a diverse range of pile breaking equipment to meet the needs of different specific scenarios, providing the most suitable equipment to facilitate efficient construction.