运营隧道管片错台数据统计及规律分析

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摘  要：该文依托杭州某邻近运营地铁隧道的基桩施工工程，对邻近桩基施工后管片错台进行分析，得到结果为施工后左右线隧道管片腰部的错台量较大。邻近桩基施工对附近错台量较大的管片有抑制其继续扩大的趋势，而对于错台量较小或者无错台的管片则会影响其发生错台。

关键词：运营隧道；隧道管片；错台量；桩基施工；水平位移

中图分类号：TU997       文献标志码：A          文章编号：2095-2945（2023）19-0092-05

Abstract： In this paper， based on the foundation pile construction project of a nearby subway tunnel in Hangzhou， the faulting of slab ends of the segment after the construction of the adjacent pile foundation is analyzed， and the results are as follows： There is a large amount of faulting of slab ends at the waist of the tunnel segment on the left and right lines after construction. The construction of adjacent pile foundation has a tendency to restrain the expansion of the segment with a large number of faults nearby， while the segment with less or no fault will affect the occurrence of the fault.

Keywords： operating tunnel; tunnel segment; number of faulting of slab endss; pile foundation construction; horizontal displacement

随着国内外地铁盾构隧道的大量建设和运营，盾构隧道纵向变形问题逐渐凸现，严重影响着隧道结构的安全[1-3]。（剩余4885字）