| 鹤上隧道围岩松动圈测试与分析 |
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| 引用本文： | 龚建伍,夏才初,朱合华.鹤上隧道围岩松动圈测试与分析[J].地下空间与工程学报,2007,3(3):475-478. |
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| 作者姓名： | 龚建伍 夏才初 朱合华 |
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| 作者单位： | 1. 同济大学地下建筑与工程系,上海,200092
2. 同济大学地下建筑与工程系,上海,200092;同济大学岩土及地下工程教育部重点实验室,上海,200092 |
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| 摘 要： | 围岩松动圈是评价围岩稳定性的重要参数之一,文章结合大断面小净距鹤上隧道的工程实践,采用声波法和多点位移计法对隧道围岩松动圈进行了测试分析,获得了整个隧道断面松动圈的分布;基于测试结果,验证了该隧道锚杆设计支护参数的合理性,为围岩松动圈支护参数的确定提供了依据和指导.
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| 关 键 词： | 鹤上隧道 松动圈 测试 超声波 多点位移计 |
| 文章编号： | 1673-0836（2007）03-0475-04 |
| 修稿时间： | 2006-12-13 |
Measurement and Analysis on Releasing Zone of urrounding Rock in Heshang Tunnel |
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| GONG Jian-wu,XIA Cai-chu,ZHU He-hua.Measurement and Analysis on Releasing Zone of urrounding Rock in Heshang Tunnel[J].Chinese Journal of Underground Space and Engineering,2007,3(3):475-478. |
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| Authors: | GONG Jian-wu XIA Cai-chu ZHU He-hua |
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| Affiliation: | 1. Department of Geotechnical Engineering, Tongji University, Shanghai 200092, China ; 2. Key Laboratory of Geotechnical Engineering, Tongfi University, Shanghai 200092, China |
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| Abstract: | The releasing zone is one of the most critical parameters to evaluate the stability of surrounding rock. According to the construction of Heshang large- section tunnels with small spacing, the ultrasonic wave method and multi-point extensometer are applied to the measurement of releasing zone, and the distribution of releasing zone is ascertained. Based on the measured data, the rationality of bolt support is proved, and some references and instruction are also provided for the design of support system for releasing zone of surrounding rock. |
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| Keywords: | Heshang tunnels releasing zone measurement ultrasonic wave multi - point extensometer |
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