| 国内隧道常用围岩分级方法的优缺点及其优化建议 |
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| 引用本文： | 徐凡献.国内隧道常用围岩分级方法的优缺点及其优化建议[J].路基工程,2020,0(1):38-43. |
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| 作者姓名： | 徐凡献 |
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| 作者单位： | 中铁隧道股份有限公司,郑州450000 |
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| 基金项目： | 国家重点研发计划（2018YFC1505404-2）；国家自然科学基金（41672283）；四川省科技计划项目（2019YFG0001） |
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| 摘 要： | 介绍了三种常用的隧道围岩分级方法（RMR法、Q法和BQ法），并对比分析了各自的优缺点，针对RMR法和Q法的RQD取值，软岩中Q法的SRF取值以及BQ法的K2，K3修正系数取值，提出了改进方法。
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| 关 键 词： | 隧道围岩 围岩分级方法 修正系数 评价指标 改进方法 |
| 收稿时间： | 2019-07-04 |
Advantages and Disadvantages as well as Improvement Suggestions of the Surrounding Rock Classification Method Used in Domestic Tunnels |
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| Abstract: | Three common tunnel surrounding rock classification methods (RMR method, Q method and BQ method) are introduced in the paper, and their advantages and disadvantages are summarized respectively. Then the improvement methods for the significant indexes in surrounding rock classification, such as the RQD value while using RMR and Q methods, SRF value while using Q method in soft rocks, as well as the correction coefficient of K2 and K3 while using BQ method, are proposed. |
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