Pine piles are wooden piles made of pine wood. They are mainly used to deal with soft foundations, river embankments, etc. They have a well-balanced structure with smooth edges and excellent mechanical properties. Its strength and stability are widely used in Australian overseas furniture. It has been widely used on the market. Its smooth surface makes it easy to oil, clean, color, spray dye and various forms of inlaying and covering. Depending on the method of piling, it can be divided into manual piling and mechanical piling. Commonly used The most popular piling machinery includes hand winches and diesel pile drivers. Hydraulic excavators are also often used to drive piles. When using a hydraulic excavator to drive piles, two people are required to hold the piles in place, turn the bucket upside down, and press the piles. It is driven into the foundation to a certain depth and is self-stabilizing. Then let the pile helper walk away and the excavator presses down the pine piles. Generally, one pile can be driven every 3-5 minutes, which is more efficient. When using it, you should pay attention to:

1. Pine wood piles are made of "logs" and should not be sawed into other shapes, especially not cut in half to form a semicircle. Semicircular piles will bend violently very quickly and even lose their effectiveness.

2. The planning method of pine pile composite foundation is similar to that of general composite foundation, except that the pile center distance is often very small.

3. It is necessary to consider the pile-driving impact force that pine wood piles can bear. The pile-driving impact energy is within 300kg\/m; if it is larger, even a log with a tail diameter of 16cm cannot withstand it.

4. The horizontal resistance of the foundation soil in the silt area is very small, and the upper ends of the pine pile groups are prone to overall horizontal displacement, causing damage to the ground equipment. Therefore, even if the earthquake horizontal load requirements are not considered, most of the time a stone layer is laid between the pine piles as much as possible. Increase the level of the pile group. The stone layer can only be laid manually, and the pine piles should be squeezed one by one as tightly as possible.