Analysis of pile rows on noise reduction of building vibration caused by subway operation

作     者：Wu, Yu-Bin Song, Rui-Xiang Wu, Ya-Nan He, Lei Liu, Bi-Ding 

作者机构：Beijing Municipal Institute of Labour Protection Beijing 100054 China 

出 版 物：《Yantu Lixue/Rock and Soil Mechanics》 (Rock and Soil Mechanics)

年 卷 期：2020年第41卷

页      面：209-218页

核心收录：

学科分类：081401[工学-岩土工程] 08[工学] 081402[工学-结构工程] 0813[工学-建筑学] 0814[工学-土木工程] 0823[工学-交通运输工程] 082301[工学-道路与铁道工程] 

基　　金：The work was supported by Beijing Natural Science Foundation (8192013) 

主　　题：Piles 

摘      要：With the rapid development of subway construction, the impacts of vibration of neighboring subway and structure-borne noise on building get more and more obvious. Pile rows have gradually become one of the effective methods on controlling the vibration of metro. The vibration isolation mechanism, efficiency of pile rows on site soil environmental vibration and design parameters have been studied relatively mature. However, the controlling effect of pile rows on floor vibration and noise of indoor structure is rarely reported. In this paper, taking the new building near the ground line of throat area in metro depot as an object, on the basis of vibration test of building floor and site soil, the 3D finite element model is applied to systematically study the controlling effect of pile rows on the vibration of building floor and indoor secondary structure noise, and also the parameter impacts. It shows that the configuration location of pile rows and buried depth have obvious impacts on isolating the indoor vibration of buildings and structure-borne noise. The controlling effect is affected by the dynamic characteristics of buildings and floors. The control effect of different floors and rooms differs greatly. It is necessary to carry out special design in engineering application. The results can provide useful information for engineering design of pile rows in controlling the vibration of subway. © 2020, Science Press. All right reserved.