摘要
为有效解决分级填筑过程中软土路基的沉降和侧向位移问题,确保路基质量和安全稳定,本文结合河北省沿海高速公路软土路基分级填筑工程实例,采用有限元技术通过对分级填筑荷载下的软土路基变形特征展开数值模拟计算,从土体相对抗剪强度、位移增量以及塑性区开展等三个方面研究了软土路基稳定性发生失效的演化机制,研究内容对路基稳定性分析、信息化施工等方面具有一定的理论指导意义和工程借鉴作用。
To effectively solve the problem of soft-clay ground settlement and lateral deformation during the stage construction, making sure roadbed quality and safety and stability, combining with the project instance of soft-clay ground during the stage construction for the Hebei Province Coastal Expressway, the numerical computation for soft-clay ground deformation properties under stage construction loading has been done using the finite element method. And the evolution mechanism of stability invalidation for the soft-clay ground has been researched from three directions of the soil relative shear strength, displacement increments and plastic zone development. The research has theoretical significance and model function on roadbed stability analysis and information construction.
出处
《价值工程》
2014年第20期104-106,共3页
Value Engineering
基金
榆林学院高层次人才科研启动基金项目(13GK28)
关键词
软土路基
分级填筑
数值模拟
稳定性
soft-clay ground
stage construction
equivalent modeling method
stability
