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黄土隧道围岩分级研究的若干问题

梁庆国, 李洁, 李德武, 周一一

梁庆国, 李洁, 李德武, 周一一. 黄土隧道围岩分级研究的若干问题[J]. 岩土工程学报, 2011, 33(zk1): 170-176.
引用本文: 梁庆国, 李洁, 李德武, 周一一. 黄土隧道围岩分级研究的若干问题[J]. 岩土工程学报, 2011, 33(zk1): 170-176.
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LIANG Qing-guo, LI Jie, LI De-wu, ZHOU Yi-yi. Some problems on surrounding rock classification of loess tunnels[J]. Chinese Journal of Geotechnical Engineering, 2011, 33(zk1): 170-176.
Citation: LIANG Qing-guo, LI Jie, LI De-wu, ZHOU Yi-yi. Some problems on surrounding rock classification of loess tunnels[J]. Chinese Journal of Geotechnical Engineering, 2011, 33(zk1): 170-176.
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黄土隧道围岩分级研究的若干问题  English Version

  • 1. 兰州交通大学土木工程学院，甘肃 兰州 730070 ; 2. 甘肃省道路桥梁与地下工程重点实验室，甘肃 兰州 730070 ; 3. 皇家墨尔本理工大学土木环境与化学工程学院 ，澳大利亚 墨尔本 3001

基金项目: 兰州交通大学“青蓝”人才工程项目(QL-08-19A)；铁道
详细信息
    作者简介:

    梁庆国 (1976 – ) ，男，甘肃临洮人，博士，副教授，硕士生导师，主要从事岩土体力学、隧道与地下工程等方面的研究与教学工作。

  • 中图分类号: U25; P 642.131

Some problems on surrounding rock classification of loess tunnels

  • 1. School of Civil Engineering, Lanzhou Jiaotong University, Lanzhou, 730070, China; 2. Key Laboratory of Road & Bridge and Underground Engineering of Gansu Province, Lanzhou 730000, China; 3.School of Civil, Environmental and Chemical Engineering ， GPO Box 2476V, Melbourne VIC 3001, Australia

摘要

    摘要
  • 摘要: 黄土力学性质的研究大多数针对的是黄土地基工程和边坡工程，对黄土隧道工程方面的研究较少。分析了黄土作为特殊性土和黄土隧道围岩时具有的几个特殊性质：水敏感性、小应变破坏特性、各向异性和黄土节理对其稳定性的影响。认为现有关于黄土力学性质研究的方法和结果还不能考虑深埋黄土隧道围岩的实际特征，提出了针对黄土隧道围岩分级研究的试验研究内容和相应的方法。
    Abstract: Most researches related to loess mechanical properties highlight loess foundations and slopes, while little attention has been paid to loess tunnels. Several typical characteristics of loess both as a special soil and surrounding rock of loess tunnels, such as sensitivity to water content, failure at small strain, anisotropy, loess joints and its impact on stability of loess, are studied from the perspective of stability of tunnel and underground engineering. It is concluded that the existing methods and results associated with mechanical behaviours of loess can’t take the actual characteristics of loess into account when the loess behaves as surrounding rock of deep-buried tunnels. The necessary tests and corresponding methods are suggested mainly aimed at the surrounding rock classification of loess tunnels.
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  • 收稿日期:  2011-04-28
  • 发布日期:  2011-11-30

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