武广线高边坡陡坡地段桩板结构路基的设计理论探讨

研究目的:桩板结构路基是土质路基上无砟轨道的一种新型结构形式,本文结合武广线桩板结构路基的设计,初步探讨桩板结构路基的设计方法,希望能够为桩板结构路基的设计及应用提供参考。研究结果:桩板结构路基是高边坡陡坡地段地基加固的一种有效形式,通过计算,承载板挠度、桩基础承载力及其变形均满足了无砟轨道的控制指标要求,是桩板结构路基应用范围的一个新的突破。

Theoretical Exploration on Design of Pile-plate Structure Subgrade in Steep Slope Section of High Side Slope on Wuchang-Guangzhou Railway Passenger Dedicated Line

Research purposes:The pile-plate structure subgrade is a new type structure of subgrade of ballstless track on soil subgrade.In combination with the design of pile-plate structure subgrade of Wuchang-Guangzhou Passenger Dedicated Line,the primary exploration is made in this paper on the design method of pile-plate structure subgrade for the purposes of providing the references to the design and application of pile-plate structure subgrade. Research results:The pile-plate structure subgrade is an effective way to veinforce the foundation in the steep slope section of high side slope.The calculations show the deflection of loading plate,bearing capacity of pile foundation and its deformation meet the requirements of control indexes for ballastless track,so this kind of application of pile-plate structure subgrade is a new break through in its applicable scope.