Types of pile foundation construction technologies

1 construction technology of manually excavated pile

The manual excavation pile technology is mainly completed by humans, characterized by low cost, good quality, simple production process, and no significant impact on the surrounding construction environment and ecological environment. Therefore, in civil engineering, manual excavation pile technology is an environmentally friendly, healthy, and economical technology.

2 Static pile driving construction technology

Static pile driving construction technology is a pile driving process that uses the self weight of the pile driver and the counterweight on the pile frame to exert force on the prefabricated pile and push it into the soil. Due to the fact that stactic pressure are squeezed soil piles, they are prone to damage the structure of the soil layer during the pile pressing process, resulting in excessive pore water pressure. Therefore, when using static pile driving construction technology, it is not advisable to pause midway and should be continued. This technology not only has the advantages of no vibration, simple process, no impact force, reliable quality, low cost, no noise, and convenient detection, but also saves concrete and steel bars, reduces construction project costs. Therefore, this technology is very suitable for caly or soft clay layers.

3 Construction technology for drilled cast-in-place piles

The formation of pile holes for pouring concrete is achieved through mechanianl equipment, which is known as drilling and pouring pile technology. Drilled cast-in-pile piles are formed by drilling holes first and then forming piles. The vertical accuracy of drilling holes is the main indicator for verifying the smooth implementation of cast-in-pile piles, and it is necessary to accurately grasp the drilling depth. When the drilling reaches the expected design value, a certain number of cleaning opetations must be carried out to ensure the quality of pile foundation project.

4 Vibration pile driving construction technology.

Vibration pile driving is mainly achieved by compacting the foundation with a huge vertical force by the vibration of the electric motor, making the soil layer of the foundation reach a dense state. Due to the long vibration time and good vibration effect, the effect on the foundation soil is also ideal. When using vibration pile driving construction technology, it should be noted that when starting when starting pile driving, small distance mild hammering should be used first, and then continuous hammering should be carried out until the pile is driven to the required depth.