摘要
基于Twersky的理论,引入圆柱体对声波和电磁波的多重散射解析解,对用排桩隔离环境振动的问题,提出了一种新的求解任意排列、任意直径刚性桩对平面SH波多重散射的理论方法,解决了传统的假设单重散射的计算方法中不考虑桩列作为整体屏障从而忽略桩间相互干涉关系的不足。随后,在数值计算分析中讨论了散射重数,排间距,桩间距等因素对双排刚性桩隔振效果的影响,对实际工程中利用排桩进行振动污染治理和屏障隔振的设计提出了有意义的结论。
Based on Twersky＇s theory,with the multiple scattering of plane acoustic or electromagnetic waves by an arbitrary configuration of parallel cylinders,a new method differing from the conventional ones is developed to figure out the plane SH waves scattered by rigid piles to solve the problem of the environmental vibration isolated by pile rows.This new method eliminates the disadvantages of the single scattering hypothesis which does not consider the coherent phase relations between the waves.Also,the influence factors on screening effectiveness including the orders of scattering,the space between pile-rows and separations between the adjacent piles are investigated.
出处
《土木建筑与环境工程》
CSCD
北大核心
2011年第2期7-11,共5页
Journal of Civil,Architectural & Environment Engineering
基金
浙江省重点创新团队支持计划(2009R50050)
关键词
非连续屏障
多重散射
无量纲位移
隔振效果
discontinuous barrier
multiple scattering
normalized displacement
screening effectiveness
