论文部分内容阅读
将统一强度理论和Lode应力参数进行耦合,建立计算山区公路高切坡局部安全稳定的数学模型。基于Arc GIS9.3对高切坡数据进行前期处理和分析,采用有限元分析软件对高切坡研究断面进行数值模拟,得到断面各节点的相关参数,利用Arc GIS9.3对数值模拟结果进行后期分析与可视化,最终得到研究断面岩土安全分区图。以重庆市两巫(巫山-巫溪)路高切坡K88+680为实例,模拟得到K88+660、K88+680和K88+700三个断面的安全分区图,并在此基础上通过空间插值方法得出该路段坡面的安全分区图。研究结果与实际相吻合,可用于指导该高切坡的开挖及防治,同时研究方法对于高切坡的局部安全研究具有重要的参考价值。
The unified strength theory and Lode stress parameters are coupled to establish a mathematical model for calculating the local safety and stability of high cut slope in mountainous areas. Based on Arc GIS9.3, the pre-processing and analysis of high-cut slope data were carried out. The finite element analysis software was used to simulate the cutting section of high-cut slope, and the relevant parameters of each node were obtained. ArcGIS 9.3 was used to analyze the results of the numerical simulation. Analysis and visualization, the final section of the study of rock and soil safety zoning map. Taking the Wugu Mountain (Wushan - Wuxi Creek) Road Kushapo K88 + 680 as an example, the safety zoning maps of the three sections of K88 + 660, K88 + 680 and K88 + 700 were simulated and interpolated by spatial interpolation The method draws a safe zoning map of the section of slope. The research results are consistent with the actual ones, which can be used to guide the excavation and prevention of the high cut slope. Meanwhile, the research methods have important reference value for the local safety research of the high cut slope.