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巷道大变形的粘弹性流体有限元分析
AN ANALYSIS OF TUNNEL DEFORMATIONS BY THE FINITE ELEMENT METHOD FOR VISCOELASTIC FLUID
【Author】 Sun Xunying Wu Haiqing~①Wang Ren (Peking University)
【机构】 北京大学;
【摘要】 在固结性差或节理裂隙发育的岩层中开挖巷道,往往会出现侧向膨胀、底鼓或冒顶现象。巷道表面位移随时间变化,具有明显的流变性。本文运用缓慢流动的Maxwell流体有限元方法研究此类巷道的变形问题。
【Abstract】 During tunnelling in weak rockmass,usually there are roof caving,bottom lifting,and lateral expansion.The displacement of tunnel surface changes with time and showes obvious rheological characteristics.In this paper the authors use finite element method with Maxwell fluid model for the problem of tunnel deformation.
- 【会议录名称】 中国科学院地球物理研究所论文摘要集(1986)
- 【会议时间】1989-12-01
- 【分类号】P554