长江科学院院报Issue(7)：82-88,7.DOI:10.3969/j.issn.1001-5485.2015.07.015
地下洞室群面向对象有限元方法的探讨
Discussion on the Application of Object-Oriented FEM to Underground Caverns
摘要
Abstract
Object-oriented FEM program of underground caverns is briefly introduced with class element as repre-sentative.A program code written in VC + +is presented to simulate the stepped excavation of an underground powerhouse and to analyse the deformation.The result is consistent with that of Phase2 software.The seismic input in dealing with dynamic response is implemented through artificial boundary by using object-oriented FEM.Further-more,the law of dynamic response of the underground powerhouse is analysed and the result shows that the re-sponse of monitoring points lags behind and the amplification factor of peak is larger than theoretical solution in the absence of cavern under the same action.On this basis,the influence of damping coefficient on the dynamic re-sponse of underground caverns by different methods is researched.The feasibility and applicability of object-orien-ted FEMin underground caverns are validated.The research result lays a foundation for further study on elastic-plastic behavior under dynamic load.关键词
地下洞室群/面向对象/有限元程序/人工边界/阻尼Key words
underground caverns/object-oriented/FEM/artificial boundary/damping分类
建筑与水利引用本文复制引用
周永强,盛谦,付晓东,刘晓敏..地下洞室群面向对象有限元方法的探讨[J].长江科学院院报,2015,(7):82-88,7.基金项目
国家自然科学基金项目集成项目 （）
