抗拔桩排布方式对大断面地铁车站的受力影响分析

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【中图分类号】：TU473.1 【文献标志码】：A 【文章编号】：1008-3197（2025）02-20-05

【DOI编码】：10.3969/j.issn.1008-3197.2025.02.005

Analysis of the Influence of the Arrangement of Anti Pull Piles on the Stress of Large Section Subway Stations

ZHANG Pei，LI Xingquan

【Abstract】：Inordertostudythe influenceof thearrngementofpullout pilesontheinternalforces，deformationsand pull-out pile reactions of the subway station main structure of the floor and botom longitudinal beam，and choose areasonable arrngement of pull-out piles，the anti-floating design of a large-section subway station inacoastal citywas taken as the engineering background.The three-dimensional finite element calculationof the main structure of the station under six different arrangements of pull-out piles was carried out by using midas Gen finite element analysis software.By comparing the calculation results of six diffrent arrangements of pull-out piles，itis shown thatthearrangementofpull-out piles inthe middlespanof thebotomlongitudinalbeam can effectivelyreduce the internalforce of thebotom longitudinal beam.Atthe same time，for the large-section station，inorder to meet the requirements of theanti-floating stabilityof thestation and the design bearing capacity of the pull-out piles，small diameter pull-out piles can be used to densely arrange the middle span area of the station floor.Under the requirements of the internal forceand deformation of the station floor structure，good economy can be obtained.

【Key words】： large section subway station；anti floating design；layout of anti pull piles

为满足城市地铁、城际铁路、机场等综合站体的联运要求，多柱多跨的大断面地铁枢纽车站越来越多。（剩余4289字）