Comparative Analysis on the Internal Force of CRD Method with different Steps for Excavating Super Shallow Tunnel

摘要：

　　On the adaptability of CRD four steps method and six steps method for excavating super shallow tunnel,elastic-plastic simulation are executed by ANSYS and Mohr-coulomb criterion.The development and distribution of axial force and moment of two kinds of methods are compared.Analysis results indicate that the axial force and moment of CRD four steps method are larger than that of six steps method.It is comparatively obvious that the axial force and moment developed near the lateral contour of tunnel by both two methods.The CRD six steps method is better than four steps method for excavating super shallow tunnel and should be adopted in actual construction process.

关键词： Super shallow tunnel Axial force and moment Tunnel excavation CRD method

作者: Weng Ling Zhang Dingbang

作者单位: School of Civil Engineering,Hubei Polytechnic University,Huangshi,Hubei,435003,China

会议类型: 国际会议

会议名称: the 2nd International Conference on Electronic & Mechanical Engineering and Information Technology (EMEIT-2012)(2012年电机工程与信息技术国际会议)

会议地点: 沈阳

会议语种:英文

页码: 582-585

在线出版日期: 2012-09-26（万方平台首次上网日期，不代表论文的发表时间）