| 衬砌压力隧洞的弹塑性分析 |
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| 引用本文： | 张黎明,王在泉,尹莹,孙林娜.衬砌压力隧洞的弹塑性分析[J].土木与环境工程学报,2006,28(2):59-61,73. |
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| 作者姓名： | 张黎明 王在泉 尹莹 孙林娜 |
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| 作者单位： | 1. 青岛理工大学,理学院,青岛,266033
2. 浙江大学,建筑工程学院,杭州,310027 |
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| 摘 要： | 基于岩体应变非线性软化本构模型,考虑中间主应力的影响,对衬砌圆形压力隧洞在等压荷载下进行弹塑性分析,对弹塑性边界位置在衬砌范围内和围岩范围内分别进行了讨论,指出根据弹塑性边界位置的不同应采用不同的计算公式,并得到了由隧洞开挖卸荷引起的、围岩开始屈服时的极限压力以及内压力作用下分别使衬砌、围岩开始屈服时的极限压力。
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| 关 键 词： | 压力隧洞 衬砌 弹塑性分析 |
| 文章编号： | 1006-7329（2006）02-0059-03 |
| 收稿时间： | 2005-11-20 |
| 修稿时间： | 2005-11-20 |
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].Journal of Civil and Environmental Engineering,2006,28(2):59-61,73. |
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| Authors: | ZHANG Li - ming WANG Zai - quan YIN Ying SUN Lin - na |
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| Affiliation: | 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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