基于反滤原理的地下结构抗液化处理方法  

Anti-liquefaction treatment method for underground structure based on principle of anti-filtration

作　　者：陶连金[1,2] 索新爱 刘春晓[1,2] TAO Lianjin SUO Xin＇ai LIU Chunxiao(Key Laboratory of Urban Security ＆ Disaster Engineering, Ministry of Education,Beijing University of Technology, Beijing 100124, China Center of Cooperative Innovation for Beijing Metropolitan Transportation, Beijing 100124, China)

机构地区：[1]北京工业大学城市与工程安全减灾省部共建教育部重点实验室,北京100124 [2]北京城市交通协同创新中心,北京100124

出　　处：《黑龙江科技大学学报》2016年第3期256-261,共6页Journal of Heilongjiang University of Science And Technology

基　　金：国家自然科学基金项目(41272337);国家自然科学基金创新研究群体项目(51421005);北京市自然科学基金重点项目(8111001)

摘　　要：针对强震下土层液化极大破坏地下结构的问题,按照反滤层原理,在地下结构与液化砂土间设置碎石层,应用FLAC^(3D)有限差分软件,分析不同工况下液化场地下结构的动力响应特征。结果表明:结构周围设置碎石层对液化场地地下结构有很好的抗液化效果。在一定范围内,随着碎石层厚度和层数的增加,抗液化能力更加明显。This paper proposes a method aimed at oil liquefaction responsible for the great destruction to which underground structures are subjected,as in the case of strong earthquakes.This method involves arranging a gravel drainage layer between the structure and the liquefied sand using the principle of the anti-filter layer;and analyzing the dynamic response characteristics of underground structures in the liquefaction site using FLAC3D finite difference software as calculating dynamic time history analysis tool.The results show that the solution affords a good anti-liquefaction effect on the underground structure of the liquefied ground,especially when gravel layers are of an increasing thickness and more layers.

关 键 词：地下结构 抗液化方法 反滤原理 动力响应 

分 类 号：TU352.1[建筑科学—结构工程] TU354