黄土高填方路堤沉降影响因素及控制技术研究

Study on Influencing Factors and Control Technology of Loess High-filled Embankment Settlement

摘要:

与一般路基相比，高填方路基具有填方高度大、较高耐久性和稳定性等特点，具有施工成本低、使用寿命长等优点。为保证道路的稳定和可持续发展，在我国山区公路经过地势低洼地区路段时，往往采用高填方路堤形式。然而，高填方路堤会出现严重的沉降，从而导致路基不稳定，特别是在黄土地区。通过具体工程实例，对黄土地区高填方路堤沉降进行现场监测，对其沉降影响因素及控制技术进行总结分析，为黄土地区高填方路堤建设提供更好的指导。

Abstract:

Compared with the general subgrade, the high-filled subgrade has the characteristics of large filling height, high durability, high stability, low construction cost, long service life and so on. In order to ensure the stability and sustainable development of road, the high-filled embankment is often adopted when the mountain highway passes through the low-lying areas in China. However, there will be serious settlement of the high-filled embankment, which leads to the subgrade instability, especially in loess area. Through the practical engineering cases, the in-situ monitoring is carried out for the settlement of high-filled embankment in loess area, and the influencing factors and control technology of its settlement are summarized and analyzed, which provide the better guidance for the construction of high-filled embankment in loess area.