| 沉管隧道GINA止水带性能评估与安全预警 |
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| 引用本文： | 刘正根,黄宏伟. 沉管隧道GINA止水带性能评估与安全预警[J]. 地下空间与工程学报, 2009, 5(2) |
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| 作者姓名： | 刘正根 黄宏伟 |
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| 作者单位： | 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;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： | GINA止水带是沉管隧道接头密封防水及安全的重要屏障.论文按平均水压法和接触应力法两种方法计算了保证GINA止水带水密性要求的最小压缩量,并在此基础上针对GINA止水带长期压紧状态下的松弛,提出了使用阶段GINA止水带最小压缩量的计算方法,估算了GINA止水带的当前压缩水平和GINA止水带的剩余压缩量.根据GINA止水带当前压缩水平评估沉管隧道的接头止水性能,并由GINA止水带的剩余压缩量确定沉管隧道安全预警等级.
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| 关 键 词： | 沉管隧道 接头 GINA止水带 压缩量 预警等级 |
Performance Evaluation and Safety Pre-warning of GINA in Immersed Tube Tunnel |
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| LIU Zhenggen,HUANG Hongwei. Performance Evaluation and Safety Pre-warning of GINA in Immersed Tube Tunnel[J]. Chinese Journal of Underground Space and Engineering, 2009, 5(2) |
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| Authors: | LIU Zhenggen HUANG Hongwei |
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| Affiliation: | 1.Department of Geotechnical Engineering;Tongji University;Shanghai 200092;P.R.China;2.Key Laboratory of Geotechnical and Underground Engineering of Ministry of Education;P.R.China |
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| Abstract: | GINA is the significant water proof barrier of immersed tube tunnel joint.Two methods,that is,those of mean stress and contact stress were employed to calculate the minimum GINA compression for ensuring the waterproofing effect.On this basis the method of calculating minimum GINA compression in operation was put forward considering the GINA relaxation in condition of long-term tight compression.In addition,estimation of current compression and residual compression was given.Finally the joint waterproof perf... |
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| Keywords: | immersed tube tunnel tube joint GINA compression value pre-warning classification |
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