Date: Sep 17, 2022　Views:
Vibratory pile drivers are mainly installed on excavators, which include land excavators and amphibious excavators. The excavator pile driver is mainly used for piling. The types of piles include pipe piles, steel sheet piles, steel pipe piles, concrete prefabricated piles, wood piles and photovoltaic piles driven on water. It is especially suitable for short and medium pile projects such as municipal administration, bridges, cofferdams and building foundations. Low noise, in line with city standards.
The construction principle of excavator vibratory pile driver:
The vibratory pile driver uses its high-frequency vibration to vibrate the pile body with high acceleration, and transmit the vertical vibration generated by the machine to the pile body, which causes the soil structure around the pile to change due to vibration and reduce its strength. The soil around the pile body is liquefied to reduce the frictional resistance between the pile side and the soil body, and then the pile is sunk into the soil by the down pressure of the excavator, the vibration sinking hammer and the dead weight of the pile body. . When pulling out the pile, with one side vibrating, the pile is pulled up with the lifting force of the excavator. The excitation force required by the piling machine should be comprehensively determined according to the soil layer, soil quality, moisture content of the site, and the type and structure of the pile.
The operating principle of the excavator vibratory pile driver:
1. The vibratory pile driver has two built-in eccentric shafts, which are driven by a hydraulic motor to generate high-speed rotation and vertical excitation force. After passing through the vibration-damping rubber block, a certain amplitude is maintained, which can meet various types of soil and piling requirements.
2. The excitation force is proportional to the size of the eccentric shaft and the square of the number of vibrations. The eccentric shaft has been calculated and tested in detail, which can take into account the strong excitation force and material properties, not only to meet the work needs, but also to ensure mechanical reliability.
The operation steps of the excavator vibratory pile driver:
1. Install the vibratory pile driver on the front end of the excavator and connect the corresponding pipelines;
2. Adjust the pressure and flow of the excavator according to the instructions;
3. Clamp the pile and drive the excavator to the designated location for piling;
4. Drive the pile into the designated location;
5. Repeat steps 2-3 until all the piles are driven into the designated location.
Precautions for the operation of the excavator vibratory pile driver:
1. The operator of the vibratory pile driver must be familiar with the structure, performance and operation essentials of the equipment.
2. Strictly follow the instructions for proper maintenance.
3. When the vibrating pile driver is working, each staff member should check the operation signal in advance.
4. Before the vibratory pile driver works, other personnel unrelated to the work must stay away from the site.