Vibrating pile hammer and pile sinking method based on radiation deformation to reduce vibration influence

Abstract

The invention discloses a vibration pile hammer capable of reducing vibration influence based on radiation deformation. The vibration pile hammer capable of reducing vibration influence based on radiation deformation comprises a radiation deformation device, a rotating shaft, a driving device and a base, wherein the radiation deformation device comprises a radiation deformation strip, a power source, a rectifier circuit and an electromagnetic wave transmitter; and the power source, the rectifier circuit and the electromagnetic wave transmitter are sequentially connected. The invention also discloses a pile sinking method of the vibration pile hammer capable of reducing vibration influence based on radiation deformation. By adopting the pile sinking method, the vibration pile hammer has noeccentric excitation force before reaching the working frequency, and when the vibration pile hammer reaches the working frequency, the eccentric excitation force is gradually generated and enables apile to sink into the soil.

Description

technical field [0001] The invention belongs to the field of vibratory pile sinking in geotechnical engineering, and in particular relates to a vibrating pile hammer and a pile sinking method for reducing the impact of vibration based on radiation deformation. Background technique [0002] In geotechnical engineering piling construction, the pile can be statically loaded on the top of the pile to press the pile into the soil layer, or the pile can be driven into the soil layer with an impact load on the top of the pile, but the impact load has a greater impact on the surrounding environment, so This method of impact piling is often prohibited in urban areas where there are many buildings. At present, there is also a vibrating hammer clamped on the top of the pile to drive the pile to generate a certain frequency of vertical continuous vibration. During this process, the side friction resistance of the pile and the soil and the resistance of the pile end are reduced, so that ...

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Problems solved by technology

[0003] In order to overcome the problem of excessive vibration of the surrounding environment caused by passing through the resonance frequency of the vibrating hammer-pile-foundation system during the process of increasing the excitation frequency from zero to the working frequency when the ordinary vibrating pile hammer is started, the present invention allows the vibrating pile hammer to reach There is no eccentric excitation force before the operating frequency, and the eccentric excitation force is gradually generated when the vibrating pile hammer reaches the operating frequency. The present invention provides a vibrating pile hammer that reduces the impact of vibration based on radiation deformation

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