Simulation of Stage Ezcavation and Stability Analysis for Stratified Rock Slope

摘要：

The slope stage excavation process is: (i) excavating the first part of the slope rock and exerting rock bolting and concrete shotcrete layer (ii) excavating the second part and exerting the second layer rock bolting and concrete shot-crete layer. The next construction process is the same as the upper step. In this article, the bolting is simulated with onedimension axial bar, the joint is simulation by no thickness Goodman element, the effect of blasting is calculated using dynamic stress method, the slope stability safety factor derives from using elastoplastic finite element method of lowing materials strength. The simulation of stage excavation of the stratified rock slope is carried out, considering unloading effect of excavation. These functions are realized by my own finite element program. This program is applied to the K135 slope of ChangZhang highway. The stresses and displacements of K135 slope for every excavation step are analyzed and the safety factors are gotten. The slopes stability is evaluated and some suggestions are proposed for improving and strengthening the slope. The analysis result shows the K135 slope is stability in the process of construction.

关键词： stratified rock slope simulation of stage ezcavation elasto-plastic finite element method of lowing materials strength slope integrity stability analysis

作者: Jiang Xueliang Yang Hui Cao Ping Meng Zhuochao

作者单位: School of Civil Engineering, HuNan City University, YiYang 413000, China School of Resource and safe School of Resource and safety Engineering, Central South University, ChangSha 410083, China School of Civil Engineering, HuNan City University, YiYang 413000, China

会议类型: 国际会议

会议名称: The 3rd International Symposium on Modern Mining & Safety Technology Proceedings(第三届现代采矿与安全技术国际学术会议)

会议地点: 辽宁阜新

会议语种:英文

页码: 791-797

在线出版日期: 2008-08-04（万方平台首次上网日期，不代表论文的发表时间）