Analysis of Plastic-zone Radius Influenced by Mechanical Parameters in Tunnel Excavation and Support

摘要：

　　According to the elastic-plastic theory,the analytical formula of plastic-zone radius is established for circular tunnel in its excavation and support,and the effect of anchor support is verified based on the radius of plastic zone from the perspective of measured axial force.The influences to plastic zone by the variations of mechanical parameters and resistance of support are quantitatively analyzed.The result is of great significance to the monitoring measurement and the dynamic design and construction of tunnel.

关键词： elastic-plastic theory plastic zone axial force of anchor resistance of support dynamic support

作者: Zhongming Su Rui Liu

作者单位: Shanxi Provincial Research Institute of Communications, Key Laboratory of Highway Construction &Main Supervision station of construction engineering quality, Jiangjin District of Chongqing, China

会议类型: 国际会议

会议名称: The International Conference on Civil Engineering, Architecture and Sustainable Infrastructure (2012土木建筑与可持续基础设施工程国际会议(ICCEASI2012))

会议地点: 郑州

会议语种:英文

页码: 787-790

在线出版日期: 2012-09-22（万方平台首次上网日期，不代表论文的发表时间）