PARAMETER DETERMINATION ABOUT LOESS TUNNEL ANALYSIS MODEL UNDER EARTHQUAKE ACTION

摘要：

In order to determine loess tunnel analysis model parameter that is calculation scope at the level direction under the action of horizontal earthquake,using ANSYS software and the dynamic finite element shear strength reduction method,earthquake safety factors are calculated when calculation scope of tunnel on each side is taken as five times,10 times,15 times and 20 times of tunnel span in this paper,the influence of level direction calculation scope under the action of horizontal earthquake is discussed through soil shear strength safety coefficient. The results show that: five times of span from each side of tunnel is able to achieve the engineering precision in dynamic analysis model under horizontal earthquake action,and thus a theoretical basis is provided for model establishment and strength analysis and stability analysis of loess tunnel in the future.

关键词： Earthquake Loess tunnel Analysis model Calculation scope Determination

作者: Xuan-Sheng Cheng Rui-Rui Tiaa

作者单位: School of Civil Engineering,Lanzhou University of Technology,Lanzhou 730050,P. R.China School of Civil Engineering,Lanzhou University of Technology,Lanzhou 730050,P. R. China

会议类型: 国际会议

会议名称: The Eleventh International Symposium on Structural Engineering(第十一届结构工程国际研讨会)

会议地点: 广州

会议语种:英文

页码: 34-38

在线出版日期: 2010-12-01（万方平台首次上网日期，不代表论文的发表时间）