岩土力学Issue(1)：232-238,7.
局部剪切破坏模式下的无重地基承载力
Study of bearing capacity of weightless foundation under local shear failure mode
摘要
Abstract
Local shear failure is a kind of common mode of foundation failure;but the calculation method of bearing capacity under local shear failure mode is not sufficiently studied so far. Therefore a theoretical calculation method is proposed. Firstly, classification standard of shallow foundation failure modes is revised based on the extension position of slip surface under failure state. The shear strength of potential failure surface under local shear failure is partially worked out;subsequently the concept model of shear strength progressive work is introduced into the bearing capacity of foundation;and the calculation method of weightless foundation bearing capacity under local shear failure is also obtained using proper supposition. A comparison between some known empirical formulas and the present method is offered and the suitability of the present method is verified. The results provide theoretical references for the bearing capacity of the foundation under local shear failure mode.关键词
地基承载力/局部剪切破坏/无重介质/破坏模式Key words
bearing capacity of foundation/local shear failure/weightless media/failure mode分类
建筑与水利引用本文复制引用
杨扬,卢坤林,朱大勇..局部剪切破坏模式下的无重地基承载力[J].岩土力学,2014,(1):232-238,7.基金项目
国家自然基金资助项目(No.51078123，No.51179043)；教育部博士点基金资助项目(No.200901111110014)。 （No.51078123，No.51179043）
