According to different piling methods, they can be divided into manual piling and mechanical piling. Commonly used piling machines include hand winches and diesel piling machines. Hydraulic excavators are also often used to drive pilings. When piling with a hydraulic excavator, it is necessary to Two people hold the piles in place, turn the bucket upside down to hold down the wooden piles, and press the wooden piles into the foundation to a certain depth to stabilize themselves. Then let the pile helpers go away and the excavator presses down the pine wood piles, usually every 3-5 minutes. A single pile can be driven, and the work efficiency is high. In order to achieve a good compaction effect and improve the bearing capacity of the foundation, the pile must be driven from the 4th circumference of the base to the inner ring.

It is better to place the piles in a plum blossom shape, and the distance between piles should not be less than 3 times the pile diameter. After piling, the pile heads should be sawed flat according to the planned elevation, so that the top of each pile is basically kept at the same level, and the pile top should be extruded during excavation and driving. of silt, lay a 20-30cm thick graded sand and gravel mattress on top of the piles and compact it, and then pour the base concrete to ensure that the foundation transmits part of the load to the soil between the piles through the mattress, and adjust the piles and soil sharing effect.

Setting up a cushion layer under the foundation can reduce the pile-soil stress ratio and give full play to the effect of the soil between piles, which can increase the value and reduce the stress concentration on the bottom surface of the foundation. By changing the thickness of the cushion layer, the sharing mattress of the pile vertical load can be adjusted. The thinner the cushion, the higher the load the piles bear as a percentage of the total load, and vice versa. If there is no cushion, the effect of the soil between the piles cannot be exerted.

The department delivers goods directly from forest farms, reducing intermediate links and providing customers with preferential prices. The supply of goods is sufficient and the supply capacity is strong. Forest farms in several provinces have cut down and stocked up to ensure the smooth completion of the project. The main customers include Jingrun Garden, Hongbo Construction, Chengye Construction, Zhongze Municipal Administration, Yihua Garden, Hongye Garden, China Railway No. 1 Bureau, Jupinyou Biotech, Taizhou Water Conservancy, Baorongcheng Municipal Administration, etc.