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| 摘要: |
| 对超声回弹综合法的应用条件与隧道衬砌在应力分布、养护环境和长龄期等方面的差异性进行了分析,然后基于隧道衬砌的类别划分,对超声回弹综合法的统一测强公式进行了多种形式的修正研究,优选出了能进行应力、养护环境和长龄期修正的参数公式.该公式拟合精度高,能较准确地推定公路隧道混凝土衬砌的强度. |
| 关键词: 超声回弹综合法,隧道衬砌分类,修正公式 |
| DOI： |
| 分类号:U214.18 TU528.01 |
| 基金项目:交通部西部交通建设科技项目(2002-318-000-22) |
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| Revised Formulas of Strength Calculation in Synthetic Method of Ultrasonic Rebound for Concrete Lining of Road Tunnel |
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DENG Tao YANG Lin-de XIA Cai-chu
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| Abstract: |
| Difference of stress distribution,maintaining condition and long age between the concrete lining of road tunnel and permitted qualification of synthetic method of ultrasonic rebound are analyzed,and a principle is put forward that the lining strength should be deduced according to the classification of the lining of road tunnel based on the grade of surrounding rock.A revised formula of three parameters for calculating lining strength is derived after the comparison of 7 formulas,which could well consider the stress in lining,the long age and the maintaining condition of lining concrete. |
| Key words: synthetic method of ultrasonic rebound,classification of the lining of road tunnel,revised formula |
