桩板墙施工引起的邻近建筑物振动实测与分析研究

Vibration Measurement and Analysis of Adjacent Buildings Caused by Construction of Pile Sheet Wall

为了研究桩板墙施工振动对邻近建筑物的影响,依托于某道路连接线工程,对桩板墙施工振动的传递规律进行了现场监测,获得了距离振源不同位置处的速度时程和速度频谱,并对不同位置处3个方向振动频率和速度峰值进行了统计分析。结果表明:桩板墙施工引起的邻近建筑物振动表现为整体振动,但以水平振动为主;随着测点远离振源,振动呈衰减趋势,符合振动波传递规律。此外,还给出邻近建筑物振动实测资料的评价分析结果,可为类似工程的施工提供一定的参考和借鉴。

In order to study the influence of the construction vibration of the pile sheet wall on the adjacent buildings,in this paper,based on a road project,field morning is carried out for the transmission law of the construction vibration of the pile sheet wall,the speed time history and the speed spectrum at different positions from the vibration source are obtained,and statistical analysis has carried out on the vibration frequency and the speed peak value in three directions at different positions.The results show that the vibration of the adjacent buildings caused by the construction of pile sheet wall is the overall vibration,but the horizontal vibration is dominant;with the measuring point far away from the vibration source,the vibration tends to attenuate,which conforms to the law of vibration wave transmission.In addition,this paper also gives the evaluation and analysis of the measured vibration data of adjacent buildings,which can provide some reference for the construction of similar projects.