托盘式U型路基结构机理研究

基于高速铁路路基工后沉降变形控制标准高，常规路基占用耕地多，基底面积大，地基处理费用较高等情况，研究一种技术可行、经济合理、具有很好的强度、稳定性和耐久性及控制路基变形的能力的托盘式U型新型路基结构，使其有效控制深厚压缩层地基路基变形，减少路基处理费用和路基工程的占地量，为路基工程结构的设计提供一种全新设计理念。

Study on Mechanism of Tray Type U.shaped Subgrade Structure

In view of severe control standard for post-construction settlement and deformation of express railway subgrade, large area of farmland taken by conventional subgrade, large area of base, high cost of foundation treatment, a new tray type U-shaped subgrade structure having feasible technology, economical rationality, good strength, stability and durability and the ability controlling subgrade deformation is studied to effectively control the deformation of subgrade on thick compressible foundation and reduce the cost for subgrade treatment and the area taken by subgrade engineering. It is the brand new concept for design of subgrade engineering structure.