Fir wood pile punching pile base: Use positive and negative water to punch holes alternately. Control the depth of the countersunk hole according to the elevation of the mud surface, control the water flow at the head of the water, ensure that the depth of the countersunk hole is consistent with the design elevation of the pile end, and prevent the countersunk hole from being too deep.

Pile sinking, pile stabilization, and pile fixing: 2 operators will hoist the pile to the designed height. In order to reduce the influence of the soil behind the pile and the liquid-filled pipe bag on the horizontal force of the fir pile, ensure that the pile body is at the same level after the construction of the bank protection structure. It is recommended to drive piles at an angle of 10:1. The front and rear piles should be placed 15cm behind the front edge of the pile. The front and rear piles should be fixed with inverted nails. The pile frame used for positioning and support should ensure that the piles are When the silt reaches basic consolidation (not less than 6 hours), the pile body can be removed without floating or shaking. Try to extend the support time on the channel side. Ensure the verticality of the pile depth and tight connection. A certain gap should be controlled at the lower end of the pile depth. To reduce soil erosion and landslides, nail a row of wooden piles horizontally 10-20cm below the top of the piles, and set diagonal braces at the outer entrance.

Certain components in fir piles are nutrients for mold growth; fir pile mildew prevention plan:

1. Fir wood piles should be placed in a dry and ventilated place when wholesale. It is recommended to place them for a long time to avoid dust, moisture, etc.

2. If the moisture content exceeds 12%, mold will easily occur. It is recommended to use data with lower moisture content as much as possible to reduce the risk of mold.

3. Short-term mildew prevention: It is recommended to spray a small amount of fungicide on the fir piles to prevent mildew.

4. Long-term mildew prevention: It is recommended to add a small amount of mildewproofing agent to pile up the mildew-proof fir wood to avoid the occurrence of mildew.

The above content is the moldy treatment plan for fir wood piles introduced by the editor. I hope it can bring some help to everyone.