摘要
结合重庆某滨江路高大加筋土挡墙的现场观测,应用改进的有限元计算方法和强度折减理论对高大加筋土结构的安全性进行评估分析。通过与简化Bishop法进行比较,两者结果比较相近。与其他工程事故资料对比,改进的有限元计算方法计算的滑动面位置更接近实际。有限元强度折减法优点是既能获得墙面变形,又能获得整体稳定安全系数,但安全判断的依据有待进一步分析研究。
Combining with the observation of a high reinforced retaining wall, which is located in Chongqing, this paper makes use of the improved FEM and the theory of the Strength Reduction to estimate and analyze the safety reliability of the high reinforced earth structure, which is compared with the simplified Bishop Method. The conclusion indicates that the calculated results of the abovementioned methods are rather close. Comparing with other construction accidents, the position of its slip surface, which has calculated by the improved FEM is more close to reality. The advantage of the Strength Reduction FEM is that it can not only obtain the deformation of the wall, but also obtain the safety coefficient of resistance to overturning. However, the determination of the safety still needs to be studied and analyzed deeply.
出处
《交通科技》
2007年第2期35-38,共4页
Transportation Science & Technology
关键词
加筋土挡墙
改进有限元法
强度折减法
防护
滑动面
安全评估
reinforced retaining wall
improved FEM
strength reduction methods
protection
slip surface
safety assessment
