| 公路隧道围岩塌方离散元模拟 |
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| 引用本文： | 孙萍,李忠良,彭建兵,郑万成.公路隧道围岩塌方离散元模拟[J].公路交通科技,2005(Z2). |
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| 作者姓名： | 孙萍 李忠良 彭建兵 郑万成 |
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| 作者单位： | 长安大学地质工程系，长安大学地质工程系，长安大学地质工程系，长安大学地质工程系 陕西西安710054，陕西西安710054 西安联合大学，陕西西安710054，陕西西安710054，陕西西安710054 |
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| 摘 要： | 以秦岭III号隧道为工程实例,根据围岩类别及围岩内地质构造发育状况,将断面划分为2 173个块体单元,采用离散单元法对该隧道的塌方过程进行了二维数值仿真模拟,得出了隧道顶部和侧壁块体的塌落距离、塌落轨迹及隧道塌方量,并得出了块体塌落过程中跟踪块体的合力曲线,反映了块体的运动过程。
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| 关 键 词： | 隧道 节理 离散单元法 塌方 |
Simulating the Highway Tunnel Collapse by Distinct Element Method |
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| SUN Ping,LI Zhong-liang.Simulating the Highway Tunnel Collapse by Distinct Element Method[J].Journal of Highway and Transportation Research and Development,2005(Z2). |
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| Authors: | SUN Ping LI Zhong-liang |
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| Institution: | SUN Ping~1,LI Zhong-liang~ |
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| Abstract: | Taking the No.3 Qinling tunnel as an example,and according to the classification of the adjacent rock and the actual geological structure,the cross of the No.3 Qinling highway tunnel is divided into 2,173 elements.By using the Distinct Element Method,the collapse of the No.3 Qinling highway tunnel is two-dimensionally simulated.Through the simulation,the displacement,the track and the total collapse are got.At the same time,the calculated force curves of the tracking blocks are got,and the movement of blocks can be reflected. |
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| Keywords: | Tunnel Joint Distinct Element Method Collapse |
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