| 融化圈深度对多年冻土隧道稳定性影响分析 |
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| 引用本文： | 盛智平.融化圈深度对多年冻土隧道稳定性影响分析[J].铁道建筑技术,2011(2):35-38. |
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| 作者姓名： | 盛智平 |
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| 作者单位： | 铁道部工程管理中心,北京,100844 |
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| 摘 要： | 青藏铁路多年冻土隧道处于高海拔、高寒及冻土的特殊环境中,冻土的热稳定性是多年冻土隧道围岩稳定的保障。通过对多年冻土隧道毛洞的融化深度及冻土围岩融化圈深度对隧道稳定性的影响分析,提出了冻土隧道施工中保证围岩稳定及施工安全的主要措施。
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| 关 键 词： | 冻土隧道 融化圈 围岩稳定性 |
Analysis on Thawing Cylinder Depth's Influence on the Tunnel Stability with Several-year Frozen Earth |
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| Sheng Zhiping.Analysis on Thawing Cylinder Depth's Influence on the Tunnel Stability with Several-year Frozen Earth[J].Railway Construction Technology,2011(2):35-38. |
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| Authors: | Sheng Zhiping |
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| Affiliation: | Sheng Zhiping(Project Management Center,Ministry of Railway,Beijing 100844,China) |
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| Abstract: | Qinghai-Xizang Railway Tunnel with several-year frozen earth is located in the special cold environment of high elevation and frozen earth.Thermal stability of the frozen earth is the safeguard of the tunnel surrounding rocks stability with several-year frozen earth.By analyzing the influence of thawing depth of tunnel unsupported excavation with several-year frozen earth and the thawing cylinder depth of the frozen earth surrounding rocks on the stability of the tunnels,this paper puts forward main measure... |
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| Keywords: | frozen earth tunnel thawing cylinder stability of the surrounding rocks |
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