含球形孔洞岩盐路基临界载荷

山东大学学报(工学版) ›› 2009, Vol. 39 ›› Issue (5): 87-90.

含球形孔洞岩盐路基临界载荷

张敦福,牛海燕

山东大学土建与水利学院工程力学系，山东济南 250061

收稿日期:2008-11-13 出版日期:2009-10-16 发布日期:2009-10-16
作者简介:张敦福(1963-),男,山东金乡人,副教授，博士,主要从事计算力学、系统动力学分析,裂隙岩体破裂及应用研究.E-mail:zhangdf@sdu.edu.cn
基金资助:
国家杰出青年科学基金(A类)资助项目(50625927)

Critical load of rock salt roadbed with a spherical cavity

ZHANG Dui-Fu, NIU Hai-Yan

Department of Engineering Mechanics, School of Civil Engineering, Shandong University, Jinan 250061, China

Received:2008-11-13 Online:2009-10-16 Published:2009-10-16

摘要/Abstract

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.

关键词: 无网格方法;球形孔洞;岩盐路基;临界载荷

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.

Key words: element free galerkin method; spherical cavity; rock salt roadbed; critical load

中图分类号:

TU448

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.

ZHANG Dui-Fu, NIU Hai-Yan. Critical load of rock salt roadbed with a spherical cavity[J]. JOURNAL OF SHANDONG UNIVERSITY (ENGINEERING SCIENCE), 2009, 39(5): 87-90.

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