When lifting, loading, unloading, and stacking fir wood piles, the pile body must not be subject to impact or severe vibration to avoid damage to the pile body. When the wood piles are used, they should be used in the order they were delivered to the construction site, and at the same time, check whether the wood piles are intact. ; Make piles, measure the pile position, drive in a circle of garden piles, and treat the upper part of the piles with anti-corrosion treatment, place bamboo sheets and geotextile + transverse connecting rods to reinforce, and backfill soil.

(1) Pile making: The fir wood used for making piles is straight and can maintain its original taper, but the difference between the diameter of the small head and the design size is not more than 1cm, and the curvature of one side is not more than 3%. The lower end of the pile is sharpened. Generally, it is cut into a regular 3-edge or 4-edge cone according to the soil conditions. The length of the cone is 1.52.0 times the diameter. The end of the pile is slightly pointed to prevent damage to the pile tip when driving. The slopes of the cone are basically symmetrical with the pile axis. The apex of the pile tip is on the axis of the pile to ensure the correct orientation when driving. ①. The diameter of the pile is strictly controlled according to the planning requirements, and the shape is straight and smooth; ②. The small end is cut into a 30cm long tip to facilitate driving. Bearing layer: ③, when more than 80% of the total number of piles are prepared, the dredger is called in to carry out piling construction to prevent the dredger from being idle while waiting for the piles; ④, use the good piles according to different sizes and The areas are respectively in place to prepare for piling: ⑤, it is prohibited to use sand pole and other other wood instead of fir.

(2) Pile position measurement: Stake out the pile positions according to the planning drawings, and mark the location of the fir piles with lime lines on site. The pile position error shall not exceed 3cm.

\u003Ci>(3）压桩:护岸国木桩选用陆路6吨自邯车装运,现场人工布桩,挖泥船吊运,人工扶直就位,船上挖泥机铲斗压桩.压桩前必须先按放样轴线用钢钎探测桩位下有无障碍物,如发现障碍物必须先铲除,以保证轴线及压桩质量.国木桩上部采取浸沥青3道防腐处理．\u003C\/i> \u003Cb>(3) Pile pressing: The shore protection wooden piles are transported by land with 6 tons of self-handling trucks. The piles are manually laid on site, lifted by dredgers, and manually straightened into place. The piles are pressed by the bucket of the dredger on board. Before pressing the piles, According to the stakeout axis, use a steel drill to detect whether there are any obstacles under the pile position. If any obstacles are found, they must be removed first to ensure the quality of the axis and pile pressing. The upper part of the wooden pile is treated with three layers of asphalt-impregnated anti-corrosion treatment.\u003C\/b>\u003Ci>打桩前,桩顶须先戒锯平整,其桩身需加以保护,不得有影响功用的磕碰伤痕,桩头部位宜选用铁丝扎紧．\u003C\/i> \u003Cb>Before piling, the top of the pile must be smoothed by sawing, and the pile body must be protected from bumps and scratches that may affect its function. The pile head should be tied tightly with iron wire.\u003C\/b>\u003Ci>挖泥船上挖机为液压挖掘机,打桩时,需2人扶桩就位,将挖斗倒扣在桩顶上,将木桩压入地基一定深度后,杉木桩即可自稳,然后让扶桩人走开,让挖掘机将杉木桩压到规划高程,一般3至5分钟即可压一根桩,工效较高.\u003C\/i> \u003Cb>The excavator on the dredger is a hydraulic excavator. When driving piles, two people are required to hold the piles in place, put the bucket upside down on the top of the piles, and press the wooden piles into the foundation to a certain depth. The fir piles will stabilize themselves and then let go. The pile supporter walks away and lets the excavator press the fir piles to the planned elevation. It usually takes 3 to 5 minutes to press a pile, which is more efficient.\u003C\/b>