| 郭立军,宋永能.新奥法隧道开挖围岩级别快速判定方法[J].现代交通技术,2008,(5): |
| 新奥法隧道开挖围岩级别快速判定方法 |
| Fast Grade Determination for Surrounding Rock Excavated with New Austrian Tunnelling Method |
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| DOI： |
| 中文关键词: 隧道工程 围岩 支护参数 加权系数 地质构造 |
| 英文关键词:tunnel engineering surrounding rock supporting parameter weighting coefficient geological structure |
| 基金项目: |
| 郭立军 宋永能 |
| [1]中铁四局集团第一工程有限公司,安徽合肥230041 [2]安徽省地震局分析预报中心,安徽合肥230001 |
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| 中文摘要: |
| 隧道开挖对岩层的级别判定，历来都存在不确定性和多解性，文章通过在高速公路隧道施工断面上划分9个分区，对每个分区确定级别加权系数，9个分区的系数之和为1，再与图纸设计的围岩级别相加，取代数和，得出初期支护所需的级别，避免了盲目估算围岩级别而产生偏差的现象。 |
| 英文摘要: |
| The judgment of surrounding rock grade is indeterminacy and multi-separation for a long time during the process of tunnel excavating.In this paper,construction section of expressway tunnel is devided into 9 branch zones and each branch zone has a grade weighting coefficient and the sum of these 9 branch coefficients is 1.Then adding the surrounding rock grade of the designing drawing with the coefficients,the grade of initial supporting demand is got .In this way,the deviation of surrounding rock grade esti... |
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