| 含球形孔洞岩盐路基临界载荷 |
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| 引用本文： | 张敦福,牛海燕. 含球形孔洞岩盐路基临界载荷[J]. 山东大学学报(工学版), 2009, 39(5): 87-90 |
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| 作者姓名： | 张敦福 牛海燕 |
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| 作者单位： | 山东大学土建与水利学院工程力学系， 山东 济南 250061 |
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| 基金项目： | 国家杰出青年科学基金(A类)资助项目(50625927) |
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| 摘 要： | 根据三维无网格Galerkin方法研究了无限大立方体中球形孔洞应力集中问题. 分别采用最大拉应力准则、格里菲斯(Griffith)和摩尔-库伦准则作为稳定性判据,数值模拟了含球形孔洞岩盐路基稳定性问题,给出了不同孔洞埋深下岩盐路基的临界载荷.
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| 关 键 词： | 无网格方法 球形孔洞 岩盐路基 临界载荷, |
| 收稿时间： | 2008-11-13 |
Critical load of rock salt roadbed with a spherical cavity |
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| ZHANG Dui-Fu,NIU Hai-Yan. Critical load of rock salt roadbed with a spherical cavity[J]. Journal of Shandong University of Technology, 2009, 39(5): 87-90 |
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| Authors: | ZHANG Dui-Fu NIU Hai-Yan |
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| Affiliation: | Department of Engineering Mechanics, School of Civil Engineering, Shandong University, Jinan 250061, China |
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| Abstract: | The stress concentration of a spherical cavity in an infinite cube was studied by the three-dimensional element-free Galerkin method. The maximal tensile stress criterion,Griffith criterion and Moore-coulomb criterion was respectively taken as the stability criterion. The stability of a rock salt roadbed with a spherical cavity was numerically simulated. The critical load of a rock salt roadbed with different cavity depth was given. |
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| Keywords: | element-free galerkin method spherical cavity rock salt roadbed critical load |
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