横观各向同性半无限空间表面典型荷载作用下的地基附加应力系数

Stress in Transversely Isotropic Half-Space With Typical Loads Acting on Its Surface

1.
Department of Geotechnical Engineering, Tongji University, Shanghai 200092, P R China;
2.
Department of Mechanics, Zhejiang University, Hangzhou 310027, P R China;
3.
Department of Civil Engineering, Zhejiang University, Hangzhou 310027, P R China

摘要: 在胡海昌和Lekhnitskii解的基础上,求得了地基表面作用竖直载荷时的附加应力系数的统一表达式,它可同时适用于各向同性和横观各向同性地基材料。详细讨论了5种典型载荷工况:圆形均布荷载、矩形均布荷载、矩形三角形分布荷载、均布线性和条形荷载。解的最终结果可由初等函数表示。文中同时也通过数值例子图示了材料各向异性对附加应力系数的影响。
- 横观各向同性 /
- 地基 /
- 附加应力系数
Abstract: Based on the results of Hu and Lekhnitskii, the united solution of additional vertical stress coefficient for both transversely isotropic and isotropic half space was obtained. Five typical load cases, namely, vertical circular uniform load, rectangular uniform load, linearly distributed rectangular load, uniform linear and strip loads are studied in detail. The final solutions are expressed in terms of elementary functions. Numerical results show that there are anisotropic effects on the variation of additional vertical stress coefficients.
- transversely isotropy /
- half-space /
- additional stress coefficients

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