| 岩溶区全断面开挖隧道围岩变形规律及其监测 |
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| 引用本文： | 赵明阶,徐容,许锡宾.岩溶区全断面开挖隧道围岩变形规律及其监测[J].同济大学学报(自然科学版),2004,32(7):866-871. |
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| 作者姓名： | 赵明阶 徐容 许锡宾 |
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| 作者单位： | 重庆交通学院,河海工程系,重庆,400074 |
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| 基金项目： | 重庆市重点科技攻关项目 ( 2 0 0 12 5 0 3 ) |
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| 摘 要： | 运用相似模型试验和数值分析成果 ,分析岩溶区公路隧道在全断面开挖过程中的围岩变形特性 .提出了岩溶区全断面开挖隧道围岩变形时空曲线的一般模式 .在此基础上 ,建立了岩溶区围岩稳定性判别标准 ,给出超前支护和二次衬砌的最佳时机 .并运用现场量测数据的结果验证了所提出的岩溶区全断面开挖隧道围岩变形规律的正确性 .
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| 关 键 词： | 岩溶 全断面开挖 隧道 围岩 变形特性 监测 |
| 文章编号： | 0253-374X(2004)07-0866-06 |
Deformation Analysis and Monitoring of Surrounding Rock during Full-face Excavation of Tunnel in Karst Regions |
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| ZHAO Ming-jie,XU Rong,XU Xi-bin.Deformation Analysis and Monitoring of Surrounding Rock during Full-face Excavation of Tunnel in Karst Regions[J].Journal of Tongji University(Natural Science),2004,32(7):866-871. |
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| Authors: | ZHAO Ming-jie XU Rong XU Xi-bin |
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| Abstract: | Based on the research results of modeling test and numerical analysis of surrounding rock deformation behavior of the full-face excavation tunnel in karst regions,the regular time-space curve model of surrounding rock deformation was proposed.The evaluation criterion of the surrounding rock stability of tunnel was set up,and the best time of support and secondary lining was given.The results of the field monitoring data show that the deformation of the surrounding rock released before the excavating face arrived is large,which comes mainly in the instant of excavation and in the front of excavation face. |
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| Keywords: | karst full-face excavation tunnel surrounding rockmasses deformation analysis monitoring |
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