桥式盾构法施工参数对上方无缝线路的影响

结合江西省新余市人民北路下穿铁路框架桥工程,选取不同单步顶进距离、箱涵顶面摩擦力和覆土厚度为上方线路变形影响因素,对施工中上方浙赣线路变形进行了分析,提出了合理施工参数建议.

Study on the impacts on the above railway from the construction parameters of bridge type shield

Combined with the engineering of Renminbei road across a railway bridge in Xinyu of Jiangxi province,the article introduces the factors caused the deformation of above railway from thrust distance each step,friction on the culvert box and the thickness of the above soil,analyzes the deformation of the above railway from Zhejiang to Jiangxi,and makes proper suggestions on the construction parameters.