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Pile Installation
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Hammering MethodHammering Method is a piling construction technique that uses the impact force of a pile hammer falling onto the top of a pile to overcome soil resistance and drive the pile to the desired depth or bearing layer. This method is characterized by fast construction speed and high mechanization, with a wide range of applications. However, it generates noise and vibrations during operation, which can limit its use in urban areas and at night.
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Static Load MethodStatic Load Piling is a construction method that uses static pressure to drive piles into the soil, eliminating vibrations and noise during the process. However, it can cause soil displacement effects. This method is suitable for weak soil layers and situations where nearby buildings or structures are sensitive to vibrations.
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Pile PlantingPile Planting for Precast Piles is a recent advancement in pile foundation engineering.This technique involves mechanically predrilling a hole, filling it with materials such as cement-sand slurry, cement grout, concrete, or cement-soil, and then inserting a precast pile with a diameter smaller than the hole.Compared to conventional cast-in-situ piles,this method results in less pile end sediment and eliminates common issues such as hole collapse and necking. It offers better adaptability to different soil layers. With higher vertical load-bearing capacity and stable pile quality,this method provides improved economic efficiency and reliability.
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Pile Driving BargePile driving barge is a specialized boat that can carry out pile installation in sea and river.
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Welding ConnectionWelding connections can be categorized into several methods: the steel cap angle steel welding method (used only for reinforced concrete square piles), the steel plate welding method (commonly used for reinforced concrete pipe piles), the ring lining welding method (generally used only for steel pipe piles), and the butt welding method. Welding techniques can further be classified into manual welding, semi-automatic welding, and automatic welding.
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Mechanical ConnectionMechanical connections enhance the efficiency and quality of pile joints. Mechanical joints can be classified into several types:flange bolt connections, steel cap and iron tenon connections,steel cap and key connections (such as interlocking types), steel cap with groove and projection connections, and clamp connections. Among these, flange bolt connections are commonly used for pipe piles, while the other methods are suitable for square piles.
