摘要
将有限元模拟、蒙特卡罗法与径向基理论相结合,建立了一个可用于评价土性参数变异性对路堤稳定风险影响的随机模型。以佛山"一环"南线K13+340为研究背景,分析了软土层粘聚力、摩擦角的变异性对路堤稳定风险率的影响,结果表明,软土层力学指标的变异性对路堤稳定风险影响显著,摩擦角的随机变异性对路堤稳定的平均影响大于粘聚力。
A random model is established to evaluate the influence of soil parameters variability on embankment stability risk rate combined finite element modeling, Monte Carlo technology and radial basis function Taking the real situation of Southern Line K13 ＋ 340 of Foshan ＂First Ring＂ as background, this paper analyzes the influence of variability of soft soil cohesive force and friction angle on embankment stability risk rate. The result indicates that the variability of soft soil mechanical indicators has a large influence on embankment stability risk rate, and the variability of friction angle has larger average influence than that of cohesive force.
出处
《路基工程》
2011年第1期21-24,共4页
Subgrade Engineering
关键词
土性指标变异性
路堤稳定
径向基理论
蒙特卡罗技术
风险率
soil parameter variability
embankment stability
radial basis function
Monte Carlo technology
risk rate
