路基工程Issue(3)：30-33,4.
斜交超浅埋地铁段桩板结构路基的设计与施工研究
Study on Design and Construction of Subgrade in Pile-board Structure for Skewed Over-shallow-embedded Metro Section
摘要
Abstract
In the construction of Shanghai-Hangzhou Passenger Dedicated Line and Shanghai Skewed Overshallow-embedded Metro Line 9,two world-level technical problems,destruction of shield segment disturbance and upward moving of the shield caused by excavation at the upper portion,arisen.Through comparison of design schemes,subgrade in pile-board structure is proposed with the geometric dimension and calculation procedure thereof.Considering high risk of construction of over-shallow-embedded metro section,the key techniques for such subgrade is put forward,including cased borehole pile construction and structural construction process.The practice has proved that in skewed over-shallow-embedded metro section,subgrade in pile-board structure does not lead to any potential safety hazard in the course of construction and operation.It controls settlement and deformation effectively,ensuring safe operation of the existing metro.关键词
客运专线/超浅埋地铁/桩板结构路基/设计与施工研究Key words
passenger-dedicated line/ over-shallow-embedded metro/ subgrade in pile-board structure/design and construction study分类
建筑与水利引用本文复制引用
刘家兵,赵文辉,苏谦,刘宝,白皓..斜交超浅埋地铁段桩板结构路基的设计与施工研究[J].路基工程,2013,(3):30-33,4.基金项目
道路工程四川省重点实验室2011年度开放基金项目(LHTE007201107) （LHTE007201107）
中第四勘察设计院集团有限公司科研项目(2010K25) （2010K25）
