| 厦门海底隧道围岩流变特性及其特征曲线 |
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| 引用本文： | 齐明山,徐正良,崔 勤,宁佐利.厦门海底隧道围岩流变特性及其特征曲线[J].岩土力学,2007,28(Z1):493-496. |
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| 作者姓名： | 齐明山 徐正良 崔 勤 宁佐利 |
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| 作者单位： | 1.上海市城市建设设计研究院，上海 200125；2.同济大学，上海 200092 |
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| 摘 要： | 厦门海底隧道是我国建设的第一条海底公路隧道，其穿越的F1，F2，F3，F4共4条断层破碎带，洞体围岩软弱、破碎，流变属性十分明显。对该类岩石进行了室内三轴压缩流变试验。试验结果表明，幂律型蠕变模型可以用来较好地模拟该类岩石除第三阶段蠕变以外的蠕变行为，并得到幂律型蠕变模型的相关流变参数。将幂律型蠕变方程和Drucker-Prager屈服准则相耦合来描述岩体的非线性黏弹塑性特性，应用数值方法研究了该隧道围岩的变形特性及其特征曲线。
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| 关 键 词： | 风化破碎岩体 岩石流变 三轴流变试验 幂律型蠕变模型 特征曲线 |
| 收稿时间： | 2007-03-14 |
Rheological properties of surrounding rock of Xiamen Subsea Tunnel and its characteristic curve |
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| QI Ming-shan,XU Zheng-liang,CUI Qin,NING Zuo-li.Rheological properties of surrounding rock of Xiamen Subsea Tunnel and its characteristic curve[J].Rock and Soil Mechanics,2007,28(Z1):493-496. |
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| Authors: | QI Ming-shan XU Zheng-liang CUI Qin NING Zuo-li |
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| Affiliation: | 1.Shanghai Urban Construction Design & Research Institute，Shanghai 200125, China; 2.Tongji University, Shanghai, 200092, China |
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| Abstract: | Xiamen Subsea Tunnel is the first subsea road tunnel in China. The tunnel passes through the faultages of F1, F2, F3 and F4 where the rock mass is rotten and cracked. Rheological properties of this type of rock are remarkable. A series of triaxial compression rheological experiments are carried out. Experimental results, show that power law creep model can be used to simulate the primary creep and the secondary creep of the rock. Power law creep model and Drucker-Prager yielding criterion are coupled to simulate the nonlinear visco-elastic-plasticity of the rock. Numerical simulation is used to study the deformation properties of surrounding rock of Xiamen Subsea Tunnel and its ground characteristic curve. |
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| Keywords: | rotten and cracked rock mass rock rheology triaxial rheological experiment power law creep model ground characteristic curve |
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