Pile sinking method based on fine deformation control of gel to reduce the impact of vibration

Abstract

The invention discloses a pile sinking method based on gel refined deformation control to reduce the impact of vibration, which is characterized in that it includes a gel deformation device, a rotating shaft, a driving device and a base; it aims at the process of increasing the excitation frequency from zero to the working frequency The problem of excessive vibration in the surrounding environment caused by passing through the resonance frequency of the vibratory hammer-pile-foundation system, there is no eccentric excitation force before the vibratory pile hammer reaches the working frequency, and the eccentric excitation is gradually generated when the vibratory pile hammer reaches the working frequency Vibration force.

Description

Technical field [0001] The present invention belongs to the field of vibrating pile of gel, in particular, to the reduction of the influence of vibration influence based on gel fine deformation control. Background technique [0002] In the piling construction of geotechnical engineering, the pile pressure can be loaded into the soil layer in the top of the pile, and the pile can also be impeded to the soil layer, but the surrounding environment is more affected under the impact load, so This impact piling method in the urban area of ​​buildings is often banned. At present, there is also a vertical continuous vibration of the pile top clamping vibration hammer to generate a certain frequency, in which the side shock resistance and pile end resistance of the pile and the drag of the pile in this process are reduced to the foundation, which is relatively The surrounding environment is less affected, but such a vibrating hammer is rotated to generate vertical excitation power, and th...

AI Technical Summary

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 invention provides a pile sinking method based on gel fine deformation control to reduce the impact of vibration

Images