城市复杂环境大跨双连拱隧道三导洞法+主洞洞盖法施工技术分析
Research on Construction Technology of Three-Guided Tunnels+Main Tunnel Covering Method for Long-Span Double-Arch Tunnels in Complicated Urban Environment
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作者信息
- 1. 中铁一局集团第五工程有限公司,陕西 宝鸡 721000
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摘要
文中以厦门第二西通道(海沧隧道)工程下穿城市主干道大跨双连拱隧道为依托,对三导洞法+主洞洞盖法施工技术进行分析,为超浅埋、偏压、软弱围岩、大跨度双连拱隧道施工提供了技术支持;采用三导洞法+主洞洞盖法施工关键技术,确保了正洞开挖期间沉降稳定控制,为隧道安全快速的贯通提供了强有力的技术保障.
Abstract
Based on the large span double arch tunnel under the main road of Xiamen Second West Passage(Haicang Tunnel)project,the construction technology of three guide tunnel method+main tunnel cover method is summarized.It provides technical support for the construc-tion of ultra-shallow buried,biased pressure,weak surrounding rock and large-span double-arch tunnel.At the same time,the key construc-tion technology of three guide hole method+main hole cover method is adopted to ensure the stable settlement control during the excavation of the positive hole,and provide a strong technical guarantee for the safe and rapid penetration of the tunnel.
关键词
复杂环境/双连拱隧道/三导洞法/洞盖法Key words
Complex environment/Double arch tunnel/Three guide holes/Hole-cover引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据