| 万家寨引水隧洞成洞和运行的有限元分析 |
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| 引用本文： | 王协群,王钊,黄杰,王俊奇.万家寨引水隧洞成洞和运行的有限元分析[J].东南大学学报,2003,19(4):387-391. |
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| 作者姓名： | 王协群 王钊 黄杰 王俊奇 |
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| 作者单位： | [1]武汉理工大学土木工程与建筑学院，武汉430070 [2]武汉大学土木建筑工程学院，武汉430072 |
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| 摘 要： | 对山西省万家寨引黄入晋工程总干线7号隧洞开挖和蓄水运行的几种工况进行了非线性有限元分析．主要内容包括采用分级堆填过程模拟风积黄土层的初始应力场；应用：Duncan释放荷载思想和弹性理论面力公式进行开挖卸荷计算；采用Goodman节理单元模拟衬砌管片的接缝；应用Terzaghi松动土压力理论施加管片上压力；确定土的Duncan-Chang模型参数时，分别取原状土进行了卸载和加载试验，并比较了用2种试验获得的模型参数进行有限元变形分析的结果，多种工况的有限元分析得到了一些合理的结果．
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| 关 键 词： | 山西 引水隧洞 有限元分析 Duncan-Chang模型 |
Finite element analyses of Wanjiazhai water transmission tunnel excavation and service |
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| Wang Xiequn,Wang Zhao,Huang Jie,WANG Junqi.Finite element analyses of Wanjiazhai water transmission tunnel excavation and service[J].Journal of Southeast University(English Edition),2003,19(4):387-391. |
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| Authors: | Wang Xiequn Wang Zhao Huang Jie WANG Junqi |
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| Abstract: | This paper is devoted to the nonlinear stress and strain analysis of tunneling and working conditions of Wanjiazhai Division Project No.7 Tunnel in Shanxi province of China. The initial geological stress of loess was simulated by grading fill; the theory of unloading proposed by Duncan and boundary stress of elasticity were used to calculate the excavation of the tunnel; Goodman joint elements were applied to simulate the joints of the liners; both loading and unloading tests have been performed to determine the parameters of Duncan Chang's model and the calculated results were compared; Terzaghi's theory on loosening earth pressure was applied. Many working conditions were analyzed and some reasonable results were obtained. Based on the analyses, reparative measures were proposed and completed. The tunnel has functioned well since October, 2001. |
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| Keywords: | tunnel loess nonlinear finite element method loading and unloading test loosening earth pressure stress strain |
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