轨道交通桩板结构施工对临近既有线 影响的数值模拟
王海峰
Numerical Study on the Influence of Rail Transit Pile Slab Structure Construction on Adjacent Existing Lines
WANG Haifeng
-
作者信息:中铁二十四局集团上海铁建工程有限公司， 200071， 上海
-
Affiliation:Shanghai Tiejian Engineering Co., Ltd., China Railway 24th Bureau Group, 200071, Shanghai, China
-
关键词:
-
Key words:
-
DOI:10.16037/j.1007-869x.2022.03.008
-
中图分类号/CLCN:TU433
-
栏目/Col:研究报告
摘要:
采用有限元Plaxis 3D软件建立三维模型，分析沪宁城际铁路接轨工程中桩板结构和路基填筑等施工对既有线路及周边地层的扰动影响。模拟研究结果表明：桩板结构施工对既有线路变形影响较为明显，既有线路最大横向水平及竖向位移均出现在桩基钻孔成桩过程；施工过程中路基两侧帮宽处逐渐出现明显沉降槽，槽底最大沉降发生于联络线右线侧桩板结构板浇筑阶段。
Abstracts:
Three-dimensional model is constructed with finite element Plaxis 3D software. The disturbance impact on existing line and surrounding stratum caused by construction of pile slab structure and subgrade filling in the connection project of Shanghai-Nanning Intercity Railway is analyzed. Simulation research results show that the construction of pile slab structure has an obvious impact on the deformation of existing lines. Maximum horizontal and vertical displacement of all lines appears in the process of pile drilling and forming. During construction, obvious settlement grooves gradually appear at the side widths on both sides of the subgrade during the construction process. The maximum settlement of the groove bottom occurs at the slab pouring stage of link line right side pile slab structure.
引文 / Ref:
王海峰.轨道交通桩板结构施工对临近既有线影响的数值模拟[J].城市轨道交通研究，2022，25（3）：36.
WANG Haifeng.Numerical Study on the Influence of Rail Transit Pile Slab Structure Construction on Adjacent Existing Lines[J].Urban mass transit，2022，25（3）：36.
WANG Haifeng.Numerical Study on the Influence of Rail Transit Pile Slab Structure Construction on Adjacent Existing Lines[J].Urban mass transit，2022，25（3）：36.
过刊浏览
资料下载
友情链接