山区高速公路高填斜陡路堤稳定性研究

高填斜陡路堤是山区高速公路最常见的断面型式之一,也是山区高速公路路基设计与施工的难点之一,但《设计规范》1]仅对其稳定性系数给出取值范围,并未详细阐述影响高填斜陡路堤稳定性的因素关系。本文结合工程实际,基于室内试验和模拟计算,研究了高填斜陡路堤稳定性的影响因素及其变化规律,研究成果表明：路堤填土的选择、路堤断面型式的选择、地面台阶的开挖、地面横坡和路堤坡脚处渗水等均对其稳定性影响很大,研究成果对工程设计和施工具有重要的参考价值。

The Research of the Stability of High Filled Steep Embankment of Mountain Highway

High filled steep embankment is one of the most common section style of mountain highway,is also one of the difficulty of the subgrade＇s design and construction of mountain highway.But The Specification of the Design of Highway Embankment just gave a range to the coefficient of stability of it,don＇t elaborate in detail the factor relations that affecting the stability of high filled steep embankment.To combine the practice of engineering,and be based on laboratory test and simulation calculation,this article researches the influencing factors and variation of the stability of high filled steep embankment.The result of this research is： the choice of embankment＇s mud,the excavation of natural slope step,the choice of section style of embankment,Lateral slope of ground and the seepage of the foot of the slope all has a great impact to the stability of high filled steep embankment.The result of this research has a very important reference value to the design and construction of engineering.