According to different foundation piling methods, they can be divided into manual service piles and mechanical equipment piles. Common pile drivers include manual cranes and diesel pile drivers. Hydraulic excavators are also commonly used for foundation piling. When using a hydraulic excavator for foundation piling, Two people must support the pile in time and turn the bucket back to buckle the fir pile.

The piles are driven into the foundation, which must be deep and self-stable. Then let the pile driver leave and use an excavator to press down the fir piles. Usually one pile is driven every 3-5 minutes. The work efficiency is high to improve the quality of the roadbed. To consolidate the effect and increase the bearing capacity, the piles must be released from near the base to the inner ring.

The pile position should be in the shape of a red plum blossom, and the pile spacing should not be less than 3 times the pile diameter. After the piles are stacked, the pile heads should be sawed at an orderly design to maintain the pile top foundation of each pile at the same level, eliminating the need for pile cutting. Extruded sludge, and pave a 20-750px thick sand and gravel cushion on the top of the pile. After compacting, pour it into the road concrete to ensure that the roots migrate to the soil between the piles according to the foundation cushion to adjust the pile and soil. effect.

Set a foundation cushion at the root to reduce the pile-soil stress ratio and make full use of the soil between the piles to increase the value and reduce the bottom stress at the root. After changing the foundation cushion thickness, adjust the pipeline foundation cushion to be thinner , to adjust the parallel line load of the pile, the higher the percentage of the pile load in the total load, and vice versa.

If you choose a fir pile wood board, you can smell the wood board. If there is a pungent smell, don't buy it. This may be the use of residual glue from the wood board, which has high formaldehyde emissions and is harmful to the body. harm.

An important feature of pine board is the expansion and contraction of the wood. Under dry conditions, the wood will bend, shrink and crack; in a humid and cold environment, the wood will expand. Therefore, the wood will expand during processing or Before use, drill holes to bring them close to the equilibrium moisture content consistent with the relative humidity of the air.

The editor has introduced the construction method of fir piles to everyone. For more information, please call the customer service of this site.