ISSN 2096-4498 CN 44-1745/U
隧道建设(中英文) ›› 2014, Vol. 34 ›› Issue (增刊): 282-285.DOI: 10.3973/j.issn.1672-741X.2014.S.043
• 施工技术 • 上一篇 下一篇
尹学平, 唐红宁
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作者简介:
YIN Xueping, TANG Hongning
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摘要:
介绍云桂铁路石林隧道、老笑一号隧道浅埋段有边桩盖挖法和无边桩盖挖法2个施工实例,总结铁路双线大断面隧道浅埋段采用盖挖法施工的关键技术,对大断面隧道浅埋段采用盖挖法施工的适用条件进行探讨,提出采用盖挖法替代浅埋暗挖法施工的条件,即当交通、水电等外部施工条件较好时,在一般地层隧道覆跨比为0.4~0.6的超浅埋段,岩溶洼地覆跨比为0.6~1.0的浅埋段可考虑采用盖挖法替代浅埋暗挖法施工。
关键词: 云桂铁路, 大断面隧道, 盖挖法, 适用条件
Abstract:
Covered excavation methods with and without side piles of shallowburied section of Shilin tunnel and Laoxiao No. 1 tunnel on YunanGuilin railway are presented. Key construction technologies of covered excavation method of large crosssection and shallowburied tunnel are summarized. Applicable conditions of covered excavation method are discussed, and the conditions that mining method can be replaced by covered excavation methods are proposed The mentioned conditions includes: coverspan ratio at normal strata is 0.4 ~ 0.6, and coverspan ratio at karst strata is 0.6 ~ 1.0.
Key words: YunnanGuilin railway, large crosssection tunnel, covered excavation method, applicable condition
中图分类号:
U 455
尹学平, 唐红宁. 大断面隧道浅埋段盖挖法施工实例[J]. 隧道建设, 2014, 34(增刊): 282-285.
YIN Xueping, TANG Hongning. Case Study on Covered Excavation in Large Crosssection and Shallowburied Tunnel[J]. Tunnel Construction, 2014, 34(增刊): 282-285.
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