摘要
通过无碴轨道桩板结构路基的离心模型试验,研究了桩板结构路基的沉降特性以及桩土相互作用。研究结果表明桩板结构路基施工完成放置5个月后路基面沉降结束,基本达到稳定,通车运营12个月后路基面稳定;桩板结构路基的桩基属于长径比较大的钻孔灌注嵌岩桩,其荷载传递具有摩擦型桩的特性。
Through centrifugal model test of pile-plank subgrade for ballastless truck, the settlement and pile-soil interaction of pile-plank subgrade are studied. It is shown that the settlement of pile-plank subgrade is completed when pile-plank subgrade is laid for five months ; the settlement of ballastless truck is completed when it is used for twelve months ; and the pile of the structure is rock-socketed bored cast-in-place frictional pile whose diameter is small in proportion to its length.
出处
《铁道建筑技术》
2006年第1期1-4,共4页
Railway Construction Technology
关键词
无碴轨道
桩板结构路基
沉降
ballastless truck
pile-plank subgrade
settlement
