Gibson地基波阻板隔振分析  

Analysis of Vibration Isolation Using WIB for Gibson Ground

作　　者：孙雨明[1] 李伟 高广运[3] 

机构地区：[1]上海应用技术学院土木建筑与安全工程学院,上海200235 [2]上海申元岩土工程有限公司,上海200011 [3]同济大学岩土与地下工程教育部重点实验室,上海200092

出　　处：《西北地震学报》2011年第1期40-45,共6页Northwestern Seismological Journal

基　　金：上海市教育委员会重点学科建设项目(J51502);上海市教育委员会科研(创新)项目;上海市科学技术委员会项目(09QB1402800)

摘　　要：采用薄层法层状半空间基本解答作为格林函数的边界元法,对Gibson地基三维波阻板(WIB)隔振设计进行了详细的参数分析。结果表明Gibson地基内采用WIB隔振有较好的隔振效果;应保证WIB具有合理的宽度和较小的埋深;增加WIB的厚度和模量是提高隔振效果的最有效的两种措施;此外地基竖向模量变化对WIB隔振效果也具有一定的影响。本文的研究成果对于WIB隔振设计的推广使用具有重要意义。Considering the fundamental solution of Gibson halfspace obtained by Thin-layer method as the Green function for BEM,some parameters in the design of 3-D Wave Impeding Block（WIB） isolation for the Gibson homogenous elastic halfspace and stratified foundation are studied in detail.The result indicates that relatively good isolation effect can be obtained by WIB in the Gibson foundation,while the WIB haves reasonable breadth and relatively small embedment depth.Increasing the thickness and modulus of WIB is most effective way to get a good effect of isolation.The Gibson ground＇s property has some influence on the effect of isolation also.The research in this paper will be helpful for the application of WIB in popular.

关 键 词：GIBSON地基 波阻板 半解析边界元法 薄层法 土-结构动力相互作用 

分 类 号：TU352.1[建筑科学—结构工程] O328[理学—一般力学与力学基础]