| Elasto- plastic Analysis of Pressure Circular Tunnel with Liner |
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| 作者姓名： | ZHANG Li - ming WANG Zai - quan YIN Ying SUN Lin - na |
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| 作者单位： | 1. College of Science, Qingdao Technological University, Qingdao 266033, P. R. China;2. College of Civil Engineering and Architecture, Zhejiang University, Hangzhou 310027, P. R. China |
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| 摘 要： | According to the strain nonlinear softening constitutive model having inflexion point after peak stress of practical rock and considering intermediate principal stress, the plastic zone of circular cavern with liner under the condition of uniform pressure is analyzed. The elasto - plastic boundaries both for the lining and surrounding rock are discussed. The stress distribution law is different due to the different position of elastic - plastic boundary. Based on this, different stress formulas are gained. The critical pressure caused by excavation of cavern leading to the yield zone and that caused by inner pressure leading to the yield of the liner and surrounding rock is introduced.
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| 关 键 词： | pressure tunnel liner elasto - plastic analysis |
| 收稿时间： | 2005/11/20 0:00:00 |
| 修稿时间： | 2005/11/20 0:00:00 |
Elasto- plastic Analysis of Pressure Circular Tunnel with Liner |
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| ZHANG Li - ming,WANG Zai - quan,YIN Ying,SUN Lin - na.Elasto- plastic Analysis of Pressure Circular Tunnel with Liner[J].Storage & Process,2006(2):59. |
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| Authors: | ZHANG Li - ming WANG Zai - quan YIN Ying SUN Lin - na |
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| Institution: | 1. College of Science, Qingdao Technological University, Qingdao 266033, P. R. China;2. College of Civil Engineering and Architecture, Zhejiang University, Hangzhou 310027, P. R. China |
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| Abstract: | According to the strain nonlinear softening constitutive model having inflexion point after peak stress of practical rock and considering intermediate principal stress, the plastic zone of circular cavern with liner under the condition of uniform pressure is analyzed. The elasto - plastic boundaries both for the lining and surrounding rock are discussed. The stress distribution law is different due to the different position of elastic - plastic boundary. Based on this, different stress formulas are gained. The critical pressure caused by excavation of cavern leading to the yield zone and that caused by inner pressure leading to the yield of the liner and surrounding rock is introduced. |
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| Keywords: | pressure tunnel liner elasto - plastic analysis |
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