| 客运专线大断面黄土隧道浅埋偏压施工技术 |
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| 引用本文： | 高树峰.客运专线大断面黄土隧道浅埋偏压施工技术[J].铁道工程学报,2008(10). |
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| 作者姓名： | 高树峰 |
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| 作者单位： | 铁道第三勘察设计院集团有限公司,天津300251 |
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| 摘 要： | 研究目的：郑西客运专线大部分隧道为黄土隧道。隧道断面大，设计V级围岩开挖断面达163．53m2。施工难度非常大。贺家庄隧道出口段施工中，出现了隧道拱顶下沉过大、地表出现裂纹等现象。根据现场施工的具体情况，通过本文的分析研究，解决大断面黄土隧道浅埋偏压的施工中的部分技术问题。研究结果：（1）大断面黄土隧道宜采用钢架，而不宜采用格栅；（2）要使结构尽快封闭成环；（3）应有效地控制各分步开挖、支护过程中的变形；（4）应对地表进行全封闭防水处理。
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| 关 键 词： | 客运专线 大断面黄土隧道 浅埋偏压 施工技术 |
Construction Technology of Large Cross-section Loess Tunnels with Shallow Cover and Unbalanced Load of Passenger Dedicated Line(PDL) |
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| GAO Shu-feng.Construction Technology of Large Cross-section Loess Tunnels with Shallow Cover and Unbalanced Load of Passenger Dedicated Line(PDL)[J].Journal of Railway Engineering Society,2008(10). |
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| Authors: | GAO Shu-feng |
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| Affiliation: | GAO Shu-feng(The Third Railway Survey , Design Institute Group Corporation,Tianjin 300251,China) |
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| Abstract: | Research purposes:The tunnel of Zhengzhou-Xi'an PDL part of are loess tunnel.The cross-section of loess tunnel is very large and it is 163.53 m2.Construction is very difficult.During the construction of the outlet section of Hejiazhuang tunnel,the tunnel crown settles too much with cracks occurred on the ground surface.This document attempts to slove some technical problems during the construction of large cross-section loess tunnels through anlaysis and research.Research results:(1) It is preferable to ado... |
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| Keywords: | PDL large cross-section loess tunnel shallow cover and unbalanced load of passenger construction technology |
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