盾构隧道受损管片结构安全评估方法研究
范志高
Research on Safety Assessment Method of Shield Tunnel Damaged Segment Structure
FAN Zhigao
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作者信息:中铁十六局集团有限公司， 100020，北京
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Affiliation:China Railway 16th Bureau Group Co., Ltd., 100020, Beijing, China
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关键词:
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Key words:
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DOI:10.16037/j.1007-869x.2022.12.012
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中图分类号/CLCN:U 455-43
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栏目/Col:研究报告
摘要:
盾构隧道管片受损会带来一系列安全隐患。为了能够对管片结构的安全状态做出准确评估，以某地铁区间管片安评工作为依托，通过受力分析并采用有限元计算的方法，对受损工况下的管片截面和接缝的承载力、荷载效应进行计算，并对承载力/荷载效应进行校核，得到管片结构安全评估结果，可为后续管片加固工作提供依据。
Abstracts:
Shield tunnel segment damage brings about a series of potential safety hazards. To make accurate assessment of segment structure safety state, based on the segment safety assessment project of a metro interval, the bearing capacity and load effect of segment section and joint under damaged condition are calculated by using the stress analysis and finite element method. The bearing capacity/load effect are checked, and the safety assessment result of segment structure is obtained, providing reference for subsequent segment reinforcement work.
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