斜坡软弱地基填方工程研究

研究目的：为解决近年来在西南山区铁路工程实践中所遇到的斜坡软弱地基填方工程存在的易滑塌失稳的问题。 研究方法：通过大量相关专业文献的阅读，在前人研究的摹础上，较全面地回顾、评述了当前斜坡软弱地基填方工程的研究现状，包括斜坡软弱地基的定义、斜坡软弱地基的应力与变形特点、斜坡软弱地基填方工程安全性评价方法、斜坡软弱地基的试验分析及工程实践等，并就斜坡软弱地基填方工程的破坏模式、对上承结构的影响及合理失稳判据及工程措施的选择等阐明了自己的观点。 研究结论：斜坡软弱地基填方工程仍然是一个非常富有挑战性的课题，值得道路工程师进行更深入的研究。

RESEARCH ON THE SUBGRADE EMBANKMENTS ENGINEERING ON SLOPED WEAK GROUND

Research purpse: To study the behavior of subgrade embankments on sloped weak ground in southwestern mountainous regions. Research method: Based on literature review of a large number of relevant domestic and international research findings, the research developments were investigated and summarized in detail, including the define of loped weak ground, the behavior of stress and deformation of subgrade embankments on sloped weak ground, the stability evaluate methods of subgrade embankments on sloped weak ground and the test research and engineering practice of subgrade embankments on sloped weak ground. Furthermore, research efforts are needed to analyze the failure patterns, the influence to upper structures, the selection of reasonable stability failure criterion and engineering measures. Research conclusion: To better understand of the structural responses and distress mechanism of subgrade embankments on sloped weak ground is necessary to enhance quality.