不稳定地层大偏压隧道洞口段施工 |
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引用本文: | 韦蓼英. 不稳定地层大偏压隧道洞口段施工[J]. 铁道标准设计通讯, 2003, 0(4): 13-14 |
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作者姓名: | 韦蓼英 |
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作者单位: | 韦蓼英(中铁十九局集团第五工程有限公司,辽宁大连,116100) |
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摘 要: | ![]() 隧道洞口段处在偏压较严重地带时 ,施工难度相当大 ,渝怀铁路桓垭坝隧道采用地表加固 ,重新配载进洞。超前小导管预支护和钢格栅网喷联合支护 ,确保了隧道安全进洞 ,顺利通过偏压段
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关 键 词: | 铁路隧道 偏压隧道 隧道洞口 预加固 预支护 |
修稿时间: | 2002-11-17 |
Tunnel Portal Construction at Unstable Eccentrically Compressed Stratum |
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Abstract: | ![]() To overcome eccentric compression at tunnel portal, many technologies were adopted such as ground surface strengthening to redistribute the load, advance support combining small guide tube and wire mesh shotcreting, etc. |
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Keywords: | tunnel portal eccentric compression construction |
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