| 盾构隧道管片螺栓烧熔的结构安全分析与加固 |
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| 引用本文： | 农兴中.盾构隧道管片螺栓烧熔的结构安全分析与加固[J].都市快轨交通,2011,24(2):84-88. |
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| 作者姓名： | 农兴中 |
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| 作者单位： | 广州地铁设计研究院有限公司; |
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| 摘 要： | 介绍地铁区间隧道发生的罕见接触网短路事故:由于短路电流,造成盾构隧道管片螺栓烧熔,产生高温引起管片破损,使止水条变形漏水.为确保运营隧道的安全,对受损管片钢筋及混凝土进行检测及鉴定分析,并对该区间管片受损段进行深入的数值模拟分析,在此基础上完成管片的修复加固设计.
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| 关 键 词： | 城市轨道交通 盾构 隧道 管片 破损事故 安全 加固 |
| 修稿时间： | 2013/12/12 0:00:00 |
Segment Structural Safety Analysis and Reinforcement after the Segment Bolt Melting Accident in a Shield Tunnel |
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| Nong Xingzhong.Segment Structural Safety Analysis and Reinforcement after the Segment Bolt Melting Accident in a Shield Tunnel[J].Urban Rapid Rail Transit,2011,24(2):84-88. |
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| Authors: | Nong Xingzhong |
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| Institution: | Nong Xingzhong(Guangzhou Metro Design & Research InstitueCo.,Ltd.,Guangzhou 510010) |
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| Abstract: | In a rare metro tunnel catenary short circuit accident,short-circuit current caused the shield tunnel segment bolts to melt.High temperatures resulted from the melting damaged tunnel segments.Water-proofing stripes deformed and started to leak.To ensure the safe tunnel operation,detection and ide-ntification of the steel and concrete of the damaged segments,and in-depth numerical simulation analysis of the damaged segments in the related tunnel sections were conducted.Segment repair and reinforcement design... |
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| Keywords: | urban rail transit shield tunnel segment damage accident safety reinforcement |
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